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[PATCH v49 4/7] Fix a few problems in index build progress reporting.
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* [PATCH v49 4/7] Fix a few problems in index build progress reporting.
@ 2026-03-27 15:50 Álvaro Herrera <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Álvaro Herrera @ 2026-03-27 15:50 UTC (permalink / raw)

First, index_build() should not update the progress when being driven by
REPACK, because the progress reporting infractructure cannot handle status of
two commands at the same time. So far, REPACK with the CONCURRENTLY option
neglected this problem altogether, but even the existing REPACK wasn't
consistent enough: even if the 'progress' variable in repack_index() was
false, it didn't pass the value to index_build().

Second, REPACK (CONCURRENTLY) should not set PROGRESS_REPACK_PHASE to
PROGRESS_REPACK_PHASE_FINAL_CLEANUP in rebuild_relation() because it calls
finish_heap_swap() anyway (via rebuild_relation_finish_concurrent()), which
does the same thing.
---
 src/backend/bootstrap/bootstrap.c |  2 +-
 src/backend/catalog/heap.c        |  3 ++-
 src/backend/catalog/index.c       | 22 ++++++++++++++++++----
 src/backend/catalog/toasting.c    |  3 ++-
 src/backend/commands/indexcmds.c  |  1 +
 src/include/catalog/index.h       |  4 +++-
 6 files changed, 27 insertions(+), 8 deletions(-)

diff --git a/src/backend/bootstrap/bootstrap.c b/src/backend/bootstrap/bootstrap.c
index 38ef683d4c7..60fb7051830 100644
--- a/src/backend/bootstrap/bootstrap.c
+++ b/src/backend/bootstrap/bootstrap.c
@@ -1183,7 +1183,7 @@ build_indices(void)
 		heap = table_open(ILHead->il_heap, NoLock);
 		ind = index_open(ILHead->il_ind, NoLock);
 
-		index_build(heap, ind, ILHead->il_info, false, false);
+		index_build(heap, ind, ILHead->il_info, false, false, false);
 
 		index_close(ind, NoLock);
 		table_close(heap, NoLock);
diff --git a/src/backend/catalog/heap.c b/src/backend/catalog/heap.c
index 5748aa9a1a9..ae6b7cda3dd 100644
--- a/src/backend/catalog/heap.c
+++ b/src/backend/catalog/heap.c
@@ -3570,7 +3570,8 @@ RelationTruncateIndexes(Relation heapRelation)
 
 		/* Initialize the index and rebuild */
 		/* Note: we do not need to re-establish pkey setting */
-		index_build(heapRelation, currentIndex, indexInfo, true, false);
+		index_build(heapRelation, currentIndex, indexInfo, true, false,
+					true);
 
 		/* We're done with this index */
 		index_close(currentIndex, NoLock);
diff --git a/src/backend/catalog/index.c b/src/backend/catalog/index.c
index b86ad73c626..bac8d527ae5 100644
--- a/src/backend/catalog/index.c
+++ b/src/backend/catalog/index.c
@@ -715,6 +715,9 @@ UpdateIndexRelation(Oid indexoid,
  *			already exists.
  *		INDEX_CREATE_PARTITIONED:
  *			create a partitioned index (table must be partitioned)
+ *		INDEX_CREATE_REPORT_PROGRESS:
+ *			update the backend's progress information during index build.
+
  * constr_flags: flags passed to index_constraint_create
  *		(only if INDEX_CREATE_ADD_CONSTRAINT is set)
  * allow_system_table_mods: allow table to be a system catalog
@@ -760,6 +763,7 @@ index_create(Relation heapRelation,
 	bool		invalid = (flags & INDEX_CREATE_INVALID) != 0;
 	bool		concurrent = (flags & INDEX_CREATE_CONCURRENT) != 0;
 	bool		partitioned = (flags & INDEX_CREATE_PARTITIONED) != 0;
+	bool		progress = (flags & INDEX_CREATE_REPORT_PROGRESS) != 0;
 	char		relkind;
 	TransactionId relfrozenxid;
 	MultiXactId relminmxid;
@@ -1276,7 +1280,8 @@ index_create(Relation heapRelation,
 	}
 	else
 	{
-		index_build(heapRelation, indexRelation, indexInfo, false, true);
+		index_build(heapRelation, indexRelation, indexInfo, false, true,
+					progress);
 	}
 
 	/*
@@ -1438,6 +1443,12 @@ index_create_copy(Relation heapRelation, bool concurrently,
 		stattargets[i].isnull = isnull;
 	}
 
+	/*
+	 * Note: The current callers do not need INDEX_CREATE_REPORT_PROGRESS. If
+	 * 'concurrently' is true, there is no build at all. Otherwise the index
+	 * build is a sub-command of REPACK. The current infrastructure does not
+	 * allow two commands to report their progress at the same time.
+	 */
 	if (concurrently)
 		flags = INDEX_CREATE_SKIP_BUILD | INDEX_CREATE_CONCURRENT;
 
@@ -1528,7 +1539,7 @@ index_concurrently_build(Oid heapRelationId,
 	indexInfo->ii_BrokenHotChain = false;
 
 	/* Now build the index */
-	index_build(heapRel, indexRelation, indexInfo, false, true);
+	index_build(heapRel, indexRelation, indexInfo, false, true, true);
 
 	/* Roll back any GUC changes executed by index functions */
 	AtEOXact_GUC(false, save_nestlevel);
@@ -3001,6 +3012,7 @@ index_update_stats(Relation rel,
  *
  * isreindex indicates we are recreating a previously-existing index.
  * parallel indicates if parallelism may be useful.
+ * progress indicates if the backend should update its progress info.
  *
  * Note: before Postgres 8.2, the passed-in heap and index Relations
  * were automatically closed by this routine.  This is no longer the case.
@@ -3011,7 +3023,8 @@ index_build(Relation heapRelation,
 			Relation indexRelation,
 			IndexInfo *indexInfo,
 			bool isreindex,
-			bool parallel)
+			bool parallel,
+			bool progress)
 {
 	IndexBuildResult *stats;
 	Oid			save_userid;
@@ -3062,6 +3075,7 @@ index_build(Relation heapRelation,
 	RestrictSearchPath();
 
 	/* Set up initial progress report status */
+	if (progress)
 	{
 		const int	progress_index[] = {
 			PROGRESS_CREATEIDX_PHASE,
@@ -3819,7 +3833,7 @@ reindex_index(const ReindexStmt *stmt, Oid indexId,
 
 	/* Initialize the index and rebuild */
 	/* Note: we do not need to re-establish pkey setting */
-	index_build(heapRelation, iRel, indexInfo, true, true);
+	index_build(heapRelation, iRel, indexInfo, true, true, progress);
 
 	/* Re-allow use of target index */
 	ResetReindexProcessing();
diff --git a/src/backend/catalog/toasting.c b/src/backend/catalog/toasting.c
index 4aa52a4bd25..51b27a8c71c 100644
--- a/src/backend/catalog/toasting.c
+++ b/src/backend/catalog/toasting.c
@@ -332,7 +332,8 @@ create_toast_table(Relation rel, Oid toastOid, Oid toastIndexOid,
 				 BTREE_AM_OID,
 				 rel->rd_rel->reltablespace,
 				 collationIds, opclassIds, NULL, coloptions, NULL, (Datum) 0,
-				 INDEX_CREATE_IS_PRIMARY, 0, true, true, NULL);
+				 INDEX_CREATE_IS_PRIMARY | INDEX_CREATE_REPORT_PROGRESS, 0,
+				 true, true, NULL);
 
 	table_close(toast_rel, NoLock);
 
diff --git a/src/backend/commands/indexcmds.c b/src/backend/commands/indexcmds.c
index 4a2d21915b1..25e8c1945c5 100644
--- a/src/backend/commands/indexcmds.c
+++ b/src/backend/commands/indexcmds.c
@@ -1233,6 +1233,7 @@ DefineIndex(ParseState *pstate,
 		flags |= INDEX_CREATE_PARTITIONED;
 	if (stmt->primary)
 		flags |= INDEX_CREATE_IS_PRIMARY;
+	flags |= INDEX_CREATE_REPORT_PROGRESS;
 
 	/*
 	 * If the table is partitioned, and recursion was declined but partitions
diff --git a/src/include/catalog/index.h b/src/include/catalog/index.h
index ed9e4c37d27..7ebe4f0bd87 100644
--- a/src/include/catalog/index.h
+++ b/src/include/catalog/index.h
@@ -71,6 +71,7 @@ extern void index_check_primary_key(Relation heapRel,
 #define	INDEX_CREATE_IF_NOT_EXISTS			(1 << 4)
 #define	INDEX_CREATE_PARTITIONED			(1 << 5)
 #define INDEX_CREATE_INVALID				(1 << 6)
+#define INDEX_CREATE_REPORT_PROGRESS		(1 << 7)
 
 extern Oid	index_create(Relation heapRelation,
 						 const char *indexRelationName,
@@ -148,7 +149,8 @@ extern void index_build(Relation heapRelation,
 						Relation indexRelation,
 						IndexInfo *indexInfo,
 						bool isreindex,
-						bool parallel);
+						bool parallel,
+						bool progress);
 
 extern void validate_index(Oid heapId, Oid indexId, Snapshot snapshot);
 
-- 
2.47.3


--3n3vqr5y2jhknrqj
Content-Type: text/x-diff; charset=utf-8
Content-Disposition: attachment;
	filename="v49-0005-Error-out-any-process-that-would-block-at-REPACK.patch"



^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread

* [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump
@ 2026-07-08 21:39 Nathan Bossart <[email protected]>
  0 siblings, 0 replies; 47+ messages in thread

From: Nathan Bossart @ 2026-07-08 21:39 UTC (permalink / raw)

---
 .../perl/PostgreSQL/Test/AdjustUpgrade.pm     | 207 +-----------------
 1 file changed, 5 insertions(+), 202 deletions(-)

diff --git a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
index 878fcc16a9e..04844298ab3 100644
--- a/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
+++ b/src/test/perl/PostgreSQL/Test/AdjustUpgrade.pm
@@ -199,15 +199,10 @@ sub adjust_database_contents
 			'drop operator if exists #@%# (bigint,NONE)');
 
 		# get rid of dblink's dependencies on regress.so
-		my $regrdb =
-		  $old_version le '9.4'
-		  ? 'contrib_regression'
-		  : 'contrib_regression_dblink';
-
-		if ($dbnames{$regrdb})
+		if ($dbnames{'contrib_regression_dblink'})
 		{
 			_add_st(
-				$result, $regrdb,
+				$result, 'contrib_regression_dblink',
 				'drop function if exists public.putenv(text)',
 				'drop function if exists public.wait_pid(integer)');
 		}
@@ -250,7 +245,7 @@ sub adjust_database_contents
 		}
 
 		# this table had OIDs too, but we'll just drop it
-		if ($old_version >= 10 && $dbnames{'contrib_regression_postgres_fdw'})
+		if ($dbnames{'contrib_regression_postgres_fdw'})
 		{
 			_add_st(
 				$result,
@@ -276,43 +271,13 @@ sub adjust_database_contents
 			'drop function if exists public.funny_dup17()');
 	}
 
-	# version-0 C functions are no longer supported
-	if ($old_version < 10)
-	{
-		_add_st($result, 'regression',
-			'drop function oldstyle_length(integer, text)');
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# cope with changes of underlying functions
-		_add_st(
-			$result,
-			'regression',
-			'drop operator @#@ (NONE, bigint)',
-			'CREATE OPERATOR @#@ ('
-			  . 'PROCEDURE = factorial, RIGHTARG = bigint )',
-			'drop aggregate public.array_cat_accum(anyarray)',
-			'CREATE AGGREGATE array_larger_accum (anyarray) ' . ' ( '
-			  . '   sfunc = array_larger, '
-			  . '   stype = anyarray, '
-			  . '   initcond = $${}$$ ' . '  ) ');
-
-		# "=>" is no longer valid as an operator name
-		_add_st($result, 'regression',
-			'drop operator if exists public.=> (bigint, NONE)');
-	}
-
 	# Version 19 changed the output format of pg_lsn.  To avoid output
 	# differences, set all pg_lsn columns to NULL if the old version is
 	# older than 19.
 	if ($old_version < 19)
 	{
-		if ($old_version >= '9.5')
-		{
-			_add_st($result, 'regression',
-				"update brintest set lsncol = NULL");
-		}
+		_add_st($result, 'regression',
+			"update brintest set lsncol = NULL");
 
 		if ($old_version >= 12)
 		{
@@ -426,107 +391,6 @@ sub adjust_old_dumpfile
 			/$1 EXECUTE FUNCTION/mgx;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	if ($old_version lt '9.6')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix =
-		  "'New York'\tnew & york | big & apple | nyc\t'new' & 'york'\t";
-		my $orig = "( 'new' & 'york' | 'big' & 'appl' ) | 'nyc'";
-		my $repl = "'new' & 'york' | 'big' & 'appl' | 'nyc'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-
-		$prefix =
-		  "'Sanct Peter'\tPeterburg | peter | 'Sanct Peterburg'\t'sanct' & 'peter'\t";
-		$orig = "( 'peterburg' | 'peter' ) | 'sanct' & 'peterburg'";
-		$repl = "'peterburg' | 'peter' | 'sanct' & 'peterburg'";
-		$dump =~ s/(?<=^\Q$prefix\E)\Q$orig\E/$repl/mg;
-	}
-
-	if ($old_version lt '9.5')
-	{
-		# adjust some places where we don't print so many parens anymore
-
-		my $prefix = "CONSTRAINT (?:sequence|copy)_con CHECK [(][(]";
-		my $orig = "((x > 3) AND (y <> 'check failed'::text))";
-		my $repl = "(x > 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$prefix = "CONSTRAINT insert_con CHECK [(][(]";
-		$orig = "((x >= 3) AND (y <> 'check failed'::text))";
-		$repl = "(x >= 3) AND (y <> 'check failed'::text)";
-		$dump =~ s/($prefix)\Q$orig\E/$1$repl/mg;
-
-		$orig = "DEFAULT ((-1) * currval('public.insert_seq'::regclass))";
-		$repl =
-		  "DEFAULT ('-1'::integer * currval('public.insert_seq'::regclass))";
-		$dump =~ s/\Q$orig\E/$repl/mg;
-
-		my $expr =
-		  "(rsl.sl_color = rsh.slcolor) AND (rsl.sl_len_cm >= rsh.slminlen_cm)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3.id3a = new.id3a) AND (rule_and_refint_t3.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-
-		$expr =
-		  "(rule_and_refint_t3_1.id3a = new.id3a) AND (rule_and_refint_t3_1.id3b = new.id3b)";
-		$dump =~ s/WHERE \(\(\Q$expr\E\)/WHERE ($expr/g;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-
-		# _mash_view_whitespace doesn't handle multi-command rules;
-		# rather than trying to fix that, just hack the exceptions manually.
-
-		my $prefix =
-		  "CREATE RULE rtest_sys_del AS ON DELETE TO public.rtest_system DO (DELETE FROM public.rtest_interface WHERE (rtest_interface.sysname = old.sysname);";
-		my $line2 = " DELETE FROM public.rtest_admin";
-		my $line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		$prefix =
-		  "CREATE RULE rtest_sys_upd AS ON UPDATE TO public.rtest_system DO (UPDATE public.rtest_interface SET sysname = new.sysname WHERE (rtest_interface.sysname = old.sysname);";
-		$line2 = " UPDATE public.rtest_admin SET sysname = new.sysname";
-		$line3 = " WHERE (rtest_admin.sysname = old.sysname);";
-		$dump =~
-		  s/(?<=\Q$prefix\E)\Q$line2$line3\E \);/\n$line2\n $line3\n);/mg;
-
-		# and there's one place where pre-9.3 uses a different table alias
-		$dump =~ s {^(CREATE\sRULE\srule_and_refint_t3_ins\sAS\s
-			 ON\sINSERT\sTO\spublic\.rule_and_refint_t3\s
-			 WHERE\s\(EXISTS\s\(SELECT\s1\sFROM\spublic\.rule_and_refint_t3)\s
-			 (WHERE\s\(\(rule_and_refint_t3)
-			 (\.id3a\s=\snew\.id3a\)\sAND\s\(rule_and_refint_t3)
-			 (\.id3b\s=\snew\.id3b\)\sAND\s\(rule_and_refint_t3)}
-		{$1 rule_and_refint_t3_1 $2_1$3_1$4_1}mx;
-
-		# Also fix old use of NATURAL JOIN syntax
-		$dump =~ s {NATURAL JOIN public\.credit_card r}
-			{JOIN public.credit_card r USING (cid)}mg;
-		$dump =~ s {NATURAL JOIN public\.credit_usage r}
-			{JOIN public.credit_usage r USING (cid)}mg;
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
@@ -661,37 +525,6 @@ sub _mash_view_qualifiers
 	return $dump;
 }
 
-
-# Internal subroutine to mangle whitespace within view/rule commands.
-# Any consecutive sequence of whitespace is reduced to one space.
-sub _mash_view_whitespace
-{
-	my ($dump) = @_;
-
-	foreach my $leader ('CREATE VIEW', 'CREATE RULE')
-	{
-		my @splitchunks = split $leader, $dump;
-
-		$dump = shift(@splitchunks);
-		foreach my $chunk (@splitchunks)
-		{
-			my @thischunks = split /;/, $chunk, 2;
-			my $stmt = shift(@thischunks);
-
-			# now $stmt is just the body of the CREATE VIEW/RULE
-			$stmt =~ s/\s+/ /sg;
-			# we also need to smash these forms for sub-selects and rules
-			$stmt =~ s/\( SELECT/(SELECT/g;
-			$stmt =~ s/\( INSERT/(INSERT/g;
-			$stmt =~ s/\( UPDATE/(UPDATE/g;
-			$stmt =~ s/\( DELETE/(DELETE/g;
-
-			$dump .= $leader . $stmt . ';' . $thischunks[0];
-		}
-	}
-	return $dump;
-}
-
 =pod
 
 =item adjust_new_dumpfile($old_version, $dump)
@@ -779,36 +612,6 @@ sub adjust_new_dumpfile
 		$dump =~ s/^SET default_table_access_method = heap;\n//mg;
 	}
 
-	# During pg_upgrade, we reindex hash indexes if the source is pre-v10.
-	# This may change their tables' relallvisible values, so don't compare
-	# those.
-	if ($old_version < 10)
-	{
-		$dump =~ s/
-			(^SELECT\s\*\sFROM\spg_catalog\.pg_restore_relation_stats\(
-			[^;]*'relation',\s'public\.hash_[a-z0-9]*_heap'::regclass,
-			[^;]*'relallvisible',)\s'\d+'::integer
-			/$1 ''::integer/mgx;
-	}
-
-	# dumps from pre-9.6 dblink may include redundant ACL settings
-	if ($old_version lt '9.6')
-	{
-		my $comment =
-		  "-- Name: FUNCTION dblink_connect_u\(.*?\); Type: ACL; Schema: public; Owner: .*";
-		my $sql =
-		  "REVOKE ALL ON FUNCTION public\.dblink_connect_u\(.*?\) FROM PUBLIC;";
-		$dump =~ s/^--\n$comment\n--\n+$sql\n+//mg;
-	}
-
-	if ($old_version lt '9.3')
-	{
-		# CREATE VIEW/RULE statements were not pretty-printed before 9.3.
-		# To cope, reduce all whitespace sequences within them to one space.
-		# This must be done on both old and new dumps.
-		$dump = _mash_view_whitespace($dump);
-	}
-
 	# Suppress blank lines, as some places in pg_dump emit more or fewer.
 	$dump =~ s/\n\n+/\n/g;
 
-- 
2.50.1 (Apple Git-155)


--WhtY6+QncUkBAPlR--






^ permalink  raw  reply  [nested|flat] 47+ messages in thread


end of thread, other threads:[~2026-07-08 21:39 UTC | newest]

Thread overview: 47+ messages (download: mbox mbox.gz follow: Atom feed)
-- links below jump to the message on this page --
2026-03-27 15:50 [PATCH v49 4/7] Fix a few problems in index build progress reporting. Álvaro Herrera <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>
2026-07-08 21:39 [PATCH v1 1/1] clean up AdjustUpgrade.pm after pg_upgrade min version bump Nathan Bossart <[email protected]>

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