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[PATCH v7 2/2] Add a --outdated option to reindexdb
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* [PATCH v6 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..addea5c1ed 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--mzh3msf6semlblkg--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v5 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index cf28176243..369d164e65 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(const ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -484,7 +521,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -509,7 +547,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -536,6 +574,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -641,7 +685,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -660,16 +704,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -687,7 +756,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -705,8 +785,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -754,7 +846,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -778,7 +870,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -797,6 +889,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--oao5se3im4osqowp--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v5 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index cf28176243..369d164e65 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(const ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -484,7 +521,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -509,7 +547,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -536,6 +574,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -641,7 +685,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -660,16 +704,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -687,7 +756,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -705,8 +785,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -754,7 +846,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -778,7 +870,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -797,6 +889,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--oao5se3im4osqowp--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v6 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..addea5c1ed 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--mzh3msf6semlblkg--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v6 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..addea5c1ed 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--mzh3msf6semlblkg--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v6 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..addea5c1ed 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--mzh3msf6semlblkg--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v6 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..addea5c1ed 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--mzh3msf6semlblkg--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v5 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index cf28176243..369d164e65 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(const ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -484,7 +521,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -509,7 +547,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -536,6 +574,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -641,7 +685,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -660,16 +704,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -687,7 +756,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -705,8 +785,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -754,7 +846,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -778,7 +870,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -797,6 +889,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--oao5se3im4osqowp--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v6 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..addea5c1ed 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--mzh3msf6semlblkg--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v7 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency using a new
pg_index_has_outdated_dependency(regclass) SQL function.

Catversion (should be) bumped.

Author: Julien Rouhaud <[email protected]>
Reviewed-by: Michael Paquier, Mark Dilger
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 doc/src/sgml/func.sgml             |  27 ++++--
 src/backend/catalog/index.c        |  22 +++++
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 src/include/catalog/pg_proc.dat    |   4 +
 5 files changed, 198 insertions(+), 32 deletions(-)

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 9492a3c6b9..0eda6678ac 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -26448,12 +26448,13 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
 
    <para>
     <xref linkend="functions-admin-index-table"/> shows the functions
-    available for index maintenance tasks.  (Note that these maintenance
-    tasks are normally done automatically by autovacuum; use of these
-    functions is only required in special cases.)
-    These functions cannot be executed during recovery.
-    Use of these functions is restricted to superusers and the owner
-    of the given index.
+    available for index maintenance tasks.  (Note that the maintenance
+    tasks performing actions on indexes are normally done automatically by
+    autovacuum; use of these functions is only required in special cases.)
+    The functions performing actions on indexes cannot be executed during
+    recovery.
+    Use of the functions performing actions on indexes is restricted to
+    superusers and the owner of the given index.
    </para>
 
    <table id="functions-admin-index-table">
@@ -26538,6 +26539,20 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
         option.
        </para></entry>
       </row>
+
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        <indexterm>
+         <primary>pg_index_has_outdated_dependency</primary>
+        </indexterm>
+        <function>pg_index_has_outdated_dependency</function> ( <parameter>index</parameter> <type>regclass</type> )
+        <returnvalue>boolean</returnvalue>
+       </para>
+       <para>
+        Check if the specified index has any outdated dependency.  For now only
+        dependency on collations are supported.
+       </para></entry>
+      </row>
      </tbody>
     </tgroup>
    </table>
diff --git a/src/backend/catalog/index.c b/src/backend/catalog/index.c
index 47e6a54149..6848e61df3 100644
--- a/src/backend/catalog/index.c
+++ b/src/backend/catalog/index.c
@@ -1390,6 +1390,28 @@ do_check_index_has_outdated_collation(const ObjectAddress *otherObject,
 	return false;
 }
 
+/*
+ * SQL wrapper around index_has_outdated_dependency.
+ */
+Datum
+pg_index_has_outdated_dependency(PG_FUNCTION_ARGS)
+{
+	Oid			indexOid = PG_GETARG_OID(0);
+	Relation	rel;
+	bool		res;
+
+	rel = try_index_open(indexOid, AccessShareLock);
+
+	if (rel == NULL)
+		PG_RETURN_NULL();
+
+	res = index_has_outdated_dependency(indexOid);
+
+	relation_close(rel, AccessShareLock);
+
+	PG_RETURN_BOOL(res);
+}
+
 /*
  * Check whether the given index has a dependency with an outdated
  * collation version.
diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..d252b1454f 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY pg_catalog.sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY pg_catalog.sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated dependencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..91fd602041 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/index "t2_id_idx" has no outdated dependency/],
+	'verbose reindexdb for outdated dependencies database wide reports all ignored indexes');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
diff --git a/src/include/catalog/pg_proc.dat b/src/include/catalog/pg_proc.dat
index 93393fcfd4..911c12ee2c 100644
--- a/src/include/catalog/pg_proc.dat
+++ b/src/include/catalog/pg_proc.dat
@@ -949,6 +949,10 @@
   proname => 'pg_indexam_has_property', provolatile => 's',
   prorettype => 'bool', proargtypes => 'oid text',
   prosrc => 'pg_indexam_has_property' },
+{ oid => '8102', descr => 'test property of an index',
+  proname => 'pg_index_has_outdated_dependency', provolatile => 's',
+  prorettype => 'bool', proargtypes => 'regclass',
+  prosrc => 'pg_index_has_outdated_dependency' },
 { oid => '637', descr => 'test property of an index',
   proname => 'pg_index_has_property', provolatile => 's', prorettype => 'bool',
   proargtypes => 'regclass text', prosrc => 'pg_index_has_property' },
-- 
2.30.1


--rpt4sswdwkhtp4fw--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v7 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency using a new
pg_index_has_outdated_dependency(regclass) SQL function.

Catversion (should be) bumped.

Author: Julien Rouhaud <[email protected]>
Reviewed-by: Michael Paquier, Mark Dilger
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 doc/src/sgml/func.sgml             |  27 ++++--
 src/backend/catalog/index.c        |  22 +++++
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 src/include/catalog/pg_proc.dat    |   4 +
 5 files changed, 198 insertions(+), 32 deletions(-)

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 9492a3c6b9..0eda6678ac 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -26448,12 +26448,13 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
 
    <para>
     <xref linkend="functions-admin-index-table"/> shows the functions
-    available for index maintenance tasks.  (Note that these maintenance
-    tasks are normally done automatically by autovacuum; use of these
-    functions is only required in special cases.)
-    These functions cannot be executed during recovery.
-    Use of these functions is restricted to superusers and the owner
-    of the given index.
+    available for index maintenance tasks.  (Note that the maintenance
+    tasks performing actions on indexes are normally done automatically by
+    autovacuum; use of these functions is only required in special cases.)
+    The functions performing actions on indexes cannot be executed during
+    recovery.
+    Use of the functions performing actions on indexes is restricted to
+    superusers and the owner of the given index.
    </para>
 
    <table id="functions-admin-index-table">
@@ -26538,6 +26539,20 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
         option.
        </para></entry>
       </row>
+
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        <indexterm>
+         <primary>pg_index_has_outdated_dependency</primary>
+        </indexterm>
+        <function>pg_index_has_outdated_dependency</function> ( <parameter>index</parameter> <type>regclass</type> )
+        <returnvalue>boolean</returnvalue>
+       </para>
+       <para>
+        Check if the specified index has any outdated dependency.  For now only
+        dependency on collations are supported.
+       </para></entry>
+      </row>
      </tbody>
     </tgroup>
    </table>
diff --git a/src/backend/catalog/index.c b/src/backend/catalog/index.c
index 47e6a54149..6848e61df3 100644
--- a/src/backend/catalog/index.c
+++ b/src/backend/catalog/index.c
@@ -1390,6 +1390,28 @@ do_check_index_has_outdated_collation(const ObjectAddress *otherObject,
 	return false;
 }
 
+/*
+ * SQL wrapper around index_has_outdated_dependency.
+ */
+Datum
+pg_index_has_outdated_dependency(PG_FUNCTION_ARGS)
+{
+	Oid			indexOid = PG_GETARG_OID(0);
+	Relation	rel;
+	bool		res;
+
+	rel = try_index_open(indexOid, AccessShareLock);
+
+	if (rel == NULL)
+		PG_RETURN_NULL();
+
+	res = index_has_outdated_dependency(indexOid);
+
+	relation_close(rel, AccessShareLock);
+
+	PG_RETURN_BOOL(res);
+}
+
 /*
  * Check whether the given index has a dependency with an outdated
  * collation version.
diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..d252b1454f 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY pg_catalog.sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY pg_catalog.sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated dependencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..91fd602041 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/index "t2_id_idx" has no outdated dependency/],
+	'verbose reindexdb for outdated dependencies database wide reports all ignored indexes');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
diff --git a/src/include/catalog/pg_proc.dat b/src/include/catalog/pg_proc.dat
index 93393fcfd4..911c12ee2c 100644
--- a/src/include/catalog/pg_proc.dat
+++ b/src/include/catalog/pg_proc.dat
@@ -949,6 +949,10 @@
   proname => 'pg_indexam_has_property', provolatile => 's',
   prorettype => 'bool', proargtypes => 'oid text',
   prosrc => 'pg_indexam_has_property' },
+{ oid => '8102', descr => 'test property of an index',
+  proname => 'pg_index_has_outdated_dependency', provolatile => 's',
+  prorettype => 'bool', proargtypes => 'regclass',
+  prosrc => 'pg_index_has_outdated_dependency' },
 { oid => '637', descr => 'test property of an index',
   proname => 'pg_index_has_property', provolatile => 's', prorettype => 'bool',
   proargtypes => 'regclass text', prosrc => 'pg_index_has_property' },
-- 
2.30.1


--rpt4sswdwkhtp4fw--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v7 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency using a new
pg_index_has_outdated_dependency(regclass) SQL function.

Catversion (should be) bumped.

Author: Julien Rouhaud <[email protected]>
Reviewed-by: Michael Paquier, Mark Dilger
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 doc/src/sgml/func.sgml             |  27 ++++--
 src/backend/catalog/index.c        |  22 +++++
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 src/include/catalog/pg_proc.dat    |   4 +
 5 files changed, 198 insertions(+), 32 deletions(-)

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 9492a3c6b9..0eda6678ac 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -26448,12 +26448,13 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
 
    <para>
     <xref linkend="functions-admin-index-table"/> shows the functions
-    available for index maintenance tasks.  (Note that these maintenance
-    tasks are normally done automatically by autovacuum; use of these
-    functions is only required in special cases.)
-    These functions cannot be executed during recovery.
-    Use of these functions is restricted to superusers and the owner
-    of the given index.
+    available for index maintenance tasks.  (Note that the maintenance
+    tasks performing actions on indexes are normally done automatically by
+    autovacuum; use of these functions is only required in special cases.)
+    The functions performing actions on indexes cannot be executed during
+    recovery.
+    Use of the functions performing actions on indexes is restricted to
+    superusers and the owner of the given index.
    </para>
 
    <table id="functions-admin-index-table">
@@ -26538,6 +26539,20 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
         option.
        </para></entry>
       </row>
+
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        <indexterm>
+         <primary>pg_index_has_outdated_dependency</primary>
+        </indexterm>
+        <function>pg_index_has_outdated_dependency</function> ( <parameter>index</parameter> <type>regclass</type> )
+        <returnvalue>boolean</returnvalue>
+       </para>
+       <para>
+        Check if the specified index has any outdated dependency.  For now only
+        dependency on collations are supported.
+       </para></entry>
+      </row>
      </tbody>
     </tgroup>
    </table>
diff --git a/src/backend/catalog/index.c b/src/backend/catalog/index.c
index 47e6a54149..6848e61df3 100644
--- a/src/backend/catalog/index.c
+++ b/src/backend/catalog/index.c
@@ -1390,6 +1390,28 @@ do_check_index_has_outdated_collation(const ObjectAddress *otherObject,
 	return false;
 }
 
+/*
+ * SQL wrapper around index_has_outdated_dependency.
+ */
+Datum
+pg_index_has_outdated_dependency(PG_FUNCTION_ARGS)
+{
+	Oid			indexOid = PG_GETARG_OID(0);
+	Relation	rel;
+	bool		res;
+
+	rel = try_index_open(indexOid, AccessShareLock);
+
+	if (rel == NULL)
+		PG_RETURN_NULL();
+
+	res = index_has_outdated_dependency(indexOid);
+
+	relation_close(rel, AccessShareLock);
+
+	PG_RETURN_BOOL(res);
+}
+
 /*
  * Check whether the given index has a dependency with an outdated
  * collation version.
diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..d252b1454f 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY pg_catalog.sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY pg_catalog.sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated dependencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..91fd602041 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/index "t2_id_idx" has no outdated dependency/],
+	'verbose reindexdb for outdated dependencies database wide reports all ignored indexes');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
diff --git a/src/include/catalog/pg_proc.dat b/src/include/catalog/pg_proc.dat
index 93393fcfd4..911c12ee2c 100644
--- a/src/include/catalog/pg_proc.dat
+++ b/src/include/catalog/pg_proc.dat
@@ -949,6 +949,10 @@
   proname => 'pg_indexam_has_property', provolatile => 's',
   prorettype => 'bool', proargtypes => 'oid text',
   prosrc => 'pg_indexam_has_property' },
+{ oid => '8102', descr => 'test property of an index',
+  proname => 'pg_index_has_outdated_dependency', provolatile => 's',
+  prorettype => 'bool', proargtypes => 'regclass',
+  prosrc => 'pg_index_has_outdated_dependency' },
 { oid => '637', descr => 'test property of an index',
   proname => 'pg_index_has_property', provolatile => 's', prorettype => 'bool',
   proargtypes => 'regclass text', prosrc => 'pg_index_has_property' },
-- 
2.30.1


--rpt4sswdwkhtp4fw--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v7 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency using a new
pg_index_has_outdated_dependency(regclass) SQL function.

Catversion (should be) bumped.

Author: Julien Rouhaud <[email protected]>
Reviewed-by: Michael Paquier, Mark Dilger
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 doc/src/sgml/func.sgml             |  27 ++++--
 src/backend/catalog/index.c        |  22 +++++
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 src/include/catalog/pg_proc.dat    |   4 +
 5 files changed, 198 insertions(+), 32 deletions(-)

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 9492a3c6b9..0eda6678ac 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -26448,12 +26448,13 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
 
    <para>
     <xref linkend="functions-admin-index-table"/> shows the functions
-    available for index maintenance tasks.  (Note that these maintenance
-    tasks are normally done automatically by autovacuum; use of these
-    functions is only required in special cases.)
-    These functions cannot be executed during recovery.
-    Use of these functions is restricted to superusers and the owner
-    of the given index.
+    available for index maintenance tasks.  (Note that the maintenance
+    tasks performing actions on indexes are normally done automatically by
+    autovacuum; use of these functions is only required in special cases.)
+    The functions performing actions on indexes cannot be executed during
+    recovery.
+    Use of the functions performing actions on indexes is restricted to
+    superusers and the owner of the given index.
    </para>
 
    <table id="functions-admin-index-table">
@@ -26538,6 +26539,20 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
         option.
        </para></entry>
       </row>
+
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        <indexterm>
+         <primary>pg_index_has_outdated_dependency</primary>
+        </indexterm>
+        <function>pg_index_has_outdated_dependency</function> ( <parameter>index</parameter> <type>regclass</type> )
+        <returnvalue>boolean</returnvalue>
+       </para>
+       <para>
+        Check if the specified index has any outdated dependency.  For now only
+        dependency on collations are supported.
+       </para></entry>
+      </row>
      </tbody>
     </tgroup>
    </table>
diff --git a/src/backend/catalog/index.c b/src/backend/catalog/index.c
index 47e6a54149..6848e61df3 100644
--- a/src/backend/catalog/index.c
+++ b/src/backend/catalog/index.c
@@ -1390,6 +1390,28 @@ do_check_index_has_outdated_collation(const ObjectAddress *otherObject,
 	return false;
 }
 
+/*
+ * SQL wrapper around index_has_outdated_dependency.
+ */
+Datum
+pg_index_has_outdated_dependency(PG_FUNCTION_ARGS)
+{
+	Oid			indexOid = PG_GETARG_OID(0);
+	Relation	rel;
+	bool		res;
+
+	rel = try_index_open(indexOid, AccessShareLock);
+
+	if (rel == NULL)
+		PG_RETURN_NULL();
+
+	res = index_has_outdated_dependency(indexOid);
+
+	relation_close(rel, AccessShareLock);
+
+	PG_RETURN_BOOL(res);
+}
+
 /*
  * Check whether the given index has a dependency with an outdated
  * collation version.
diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..d252b1454f 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY pg_catalog.sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY pg_catalog.sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated dependencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..91fd602041 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/index "t2_id_idx" has no outdated dependency/],
+	'verbose reindexdb for outdated dependencies database wide reports all ignored indexes');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
diff --git a/src/include/catalog/pg_proc.dat b/src/include/catalog/pg_proc.dat
index 93393fcfd4..911c12ee2c 100644
--- a/src/include/catalog/pg_proc.dat
+++ b/src/include/catalog/pg_proc.dat
@@ -949,6 +949,10 @@
   proname => 'pg_indexam_has_property', provolatile => 's',
   prorettype => 'bool', proargtypes => 'oid text',
   prosrc => 'pg_indexam_has_property' },
+{ oid => '8102', descr => 'test property of an index',
+  proname => 'pg_index_has_outdated_dependency', provolatile => 's',
+  prorettype => 'bool', proargtypes => 'regclass',
+  prosrc => 'pg_index_has_outdated_dependency' },
 { oid => '637', descr => 'test property of an index',
   proname => 'pg_index_has_property', provolatile => 's', prorettype => 'bool',
   proargtypes => 'regclass text', prosrc => 'pg_index_has_property' },
-- 
2.30.1


--rpt4sswdwkhtp4fw--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v5 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index cf28176243..369d164e65 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(const ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -484,7 +521,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -509,7 +547,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -536,6 +574,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -641,7 +685,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -660,16 +704,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -687,7 +756,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -705,8 +785,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -754,7 +846,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -778,7 +870,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -797,6 +889,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--oao5se3im4osqowp--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v6 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..addea5c1ed 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--mzh3msf6semlblkg--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v5 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index cf28176243..369d164e65 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(const ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -484,7 +521,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -509,7 +547,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -536,6 +574,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -641,7 +685,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -660,16 +704,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -687,7 +756,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -705,8 +785,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -754,7 +846,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -778,7 +870,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -797,6 +889,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--oao5se3im4osqowp--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v5 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index cf28176243..369d164e65 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(const ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -484,7 +521,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -509,7 +547,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -536,6 +574,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -641,7 +685,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -660,16 +704,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -687,7 +756,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -705,8 +785,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -754,7 +846,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -778,7 +870,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -797,6 +889,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--oao5se3im4osqowp--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v6 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..addea5c1ed 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--mzh3msf6semlblkg--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v6 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..addea5c1ed 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--mzh3msf6semlblkg--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v6 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..addea5c1ed 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--mzh3msf6semlblkg--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v7 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency using a new
pg_index_has_outdated_dependency(regclass) SQL function.

Catversion (should be) bumped.

Author: Julien Rouhaud <[email protected]>
Reviewed-by: Michael Paquier, Mark Dilger
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 doc/src/sgml/func.sgml             |  27 ++++--
 src/backend/catalog/index.c        |  22 +++++
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 src/include/catalog/pg_proc.dat    |   4 +
 5 files changed, 198 insertions(+), 32 deletions(-)

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 9492a3c6b9..0eda6678ac 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -26448,12 +26448,13 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
 
    <para>
     <xref linkend="functions-admin-index-table"/> shows the functions
-    available for index maintenance tasks.  (Note that these maintenance
-    tasks are normally done automatically by autovacuum; use of these
-    functions is only required in special cases.)
-    These functions cannot be executed during recovery.
-    Use of these functions is restricted to superusers and the owner
-    of the given index.
+    available for index maintenance tasks.  (Note that the maintenance
+    tasks performing actions on indexes are normally done automatically by
+    autovacuum; use of these functions is only required in special cases.)
+    The functions performing actions on indexes cannot be executed during
+    recovery.
+    Use of the functions performing actions on indexes is restricted to
+    superusers and the owner of the given index.
    </para>
 
    <table id="functions-admin-index-table">
@@ -26538,6 +26539,20 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
         option.
        </para></entry>
       </row>
+
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        <indexterm>
+         <primary>pg_index_has_outdated_dependency</primary>
+        </indexterm>
+        <function>pg_index_has_outdated_dependency</function> ( <parameter>index</parameter> <type>regclass</type> )
+        <returnvalue>boolean</returnvalue>
+       </para>
+       <para>
+        Check if the specified index has any outdated dependency.  For now only
+        dependency on collations are supported.
+       </para></entry>
+      </row>
      </tbody>
     </tgroup>
    </table>
diff --git a/src/backend/catalog/index.c b/src/backend/catalog/index.c
index 47e6a54149..6848e61df3 100644
--- a/src/backend/catalog/index.c
+++ b/src/backend/catalog/index.c
@@ -1390,6 +1390,28 @@ do_check_index_has_outdated_collation(const ObjectAddress *otherObject,
 	return false;
 }
 
+/*
+ * SQL wrapper around index_has_outdated_dependency.
+ */
+Datum
+pg_index_has_outdated_dependency(PG_FUNCTION_ARGS)
+{
+	Oid			indexOid = PG_GETARG_OID(0);
+	Relation	rel;
+	bool		res;
+
+	rel = try_index_open(indexOid, AccessShareLock);
+
+	if (rel == NULL)
+		PG_RETURN_NULL();
+
+	res = index_has_outdated_dependency(indexOid);
+
+	relation_close(rel, AccessShareLock);
+
+	PG_RETURN_BOOL(res);
+}
+
 /*
  * Check whether the given index has a dependency with an outdated
  * collation version.
diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..d252b1454f 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY pg_catalog.sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY pg_catalog.sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated dependencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..91fd602041 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/index "t2_id_idx" has no outdated dependency/],
+	'verbose reindexdb for outdated dependencies database wide reports all ignored indexes');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
diff --git a/src/include/catalog/pg_proc.dat b/src/include/catalog/pg_proc.dat
index 93393fcfd4..911c12ee2c 100644
--- a/src/include/catalog/pg_proc.dat
+++ b/src/include/catalog/pg_proc.dat
@@ -949,6 +949,10 @@
   proname => 'pg_indexam_has_property', provolatile => 's',
   prorettype => 'bool', proargtypes => 'oid text',
   prosrc => 'pg_indexam_has_property' },
+{ oid => '8102', descr => 'test property of an index',
+  proname => 'pg_index_has_outdated_dependency', provolatile => 's',
+  prorettype => 'bool', proargtypes => 'regclass',
+  prosrc => 'pg_index_has_outdated_dependency' },
 { oid => '637', descr => 'test property of an index',
   proname => 'pg_index_has_property', provolatile => 's', prorettype => 'bool',
   proargtypes => 'regclass text', prosrc => 'pg_index_has_property' },
-- 
2.30.1


--rpt4sswdwkhtp4fw--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v5 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index cf28176243..369d164e65 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(const ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -484,7 +521,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -509,7 +547,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -536,6 +574,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -641,7 +685,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -660,16 +704,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -687,7 +756,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -705,8 +785,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -754,7 +846,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -778,7 +870,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -797,6 +889,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--oao5se3im4osqowp--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v5 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index cf28176243..369d164e65 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(const ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -484,7 +521,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -509,7 +547,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -536,6 +574,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -641,7 +685,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -660,16 +704,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -687,7 +756,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -705,8 +785,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -754,7 +846,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -778,7 +870,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -797,6 +889,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--oao5se3im4osqowp--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v6 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..addea5c1ed 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--mzh3msf6semlblkg--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v7 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency using a new
pg_index_has_outdated_dependency(regclass) SQL function.

Catversion (should be) bumped.

Author: Julien Rouhaud <[email protected]>
Reviewed-by: Michael Paquier, Mark Dilger
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 doc/src/sgml/func.sgml             |  27 ++++--
 src/backend/catalog/index.c        |  22 +++++
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 src/include/catalog/pg_proc.dat    |   4 +
 5 files changed, 198 insertions(+), 32 deletions(-)

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 9492a3c6b9..0eda6678ac 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -26448,12 +26448,13 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
 
    <para>
     <xref linkend="functions-admin-index-table"/> shows the functions
-    available for index maintenance tasks.  (Note that these maintenance
-    tasks are normally done automatically by autovacuum; use of these
-    functions is only required in special cases.)
-    These functions cannot be executed during recovery.
-    Use of these functions is restricted to superusers and the owner
-    of the given index.
+    available for index maintenance tasks.  (Note that the maintenance
+    tasks performing actions on indexes are normally done automatically by
+    autovacuum; use of these functions is only required in special cases.)
+    The functions performing actions on indexes cannot be executed during
+    recovery.
+    Use of the functions performing actions on indexes is restricted to
+    superusers and the owner of the given index.
    </para>
 
    <table id="functions-admin-index-table">
@@ -26538,6 +26539,20 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
         option.
        </para></entry>
       </row>
+
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        <indexterm>
+         <primary>pg_index_has_outdated_dependency</primary>
+        </indexterm>
+        <function>pg_index_has_outdated_dependency</function> ( <parameter>index</parameter> <type>regclass</type> )
+        <returnvalue>boolean</returnvalue>
+       </para>
+       <para>
+        Check if the specified index has any outdated dependency.  For now only
+        dependency on collations are supported.
+       </para></entry>
+      </row>
      </tbody>
     </tgroup>
    </table>
diff --git a/src/backend/catalog/index.c b/src/backend/catalog/index.c
index 47e6a54149..6848e61df3 100644
--- a/src/backend/catalog/index.c
+++ b/src/backend/catalog/index.c
@@ -1390,6 +1390,28 @@ do_check_index_has_outdated_collation(const ObjectAddress *otherObject,
 	return false;
 }
 
+/*
+ * SQL wrapper around index_has_outdated_dependency.
+ */
+Datum
+pg_index_has_outdated_dependency(PG_FUNCTION_ARGS)
+{
+	Oid			indexOid = PG_GETARG_OID(0);
+	Relation	rel;
+	bool		res;
+
+	rel = try_index_open(indexOid, AccessShareLock);
+
+	if (rel == NULL)
+		PG_RETURN_NULL();
+
+	res = index_has_outdated_dependency(indexOid);
+
+	relation_close(rel, AccessShareLock);
+
+	PG_RETURN_BOOL(res);
+}
+
 /*
  * Check whether the given index has a dependency with an outdated
  * collation version.
diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..d252b1454f 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY pg_catalog.sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY pg_catalog.sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated dependencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..91fd602041 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/index "t2_id_idx" has no outdated dependency/],
+	'verbose reindexdb for outdated dependencies database wide reports all ignored indexes');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
diff --git a/src/include/catalog/pg_proc.dat b/src/include/catalog/pg_proc.dat
index 93393fcfd4..911c12ee2c 100644
--- a/src/include/catalog/pg_proc.dat
+++ b/src/include/catalog/pg_proc.dat
@@ -949,6 +949,10 @@
   proname => 'pg_indexam_has_property', provolatile => 's',
   prorettype => 'bool', proargtypes => 'oid text',
   prosrc => 'pg_indexam_has_property' },
+{ oid => '8102', descr => 'test property of an index',
+  proname => 'pg_index_has_outdated_dependency', provolatile => 's',
+  prorettype => 'bool', proargtypes => 'regclass',
+  prosrc => 'pg_index_has_outdated_dependency' },
 { oid => '637', descr => 'test property of an index',
   proname => 'pg_index_has_property', provolatile => 's', prorettype => 'bool',
   proargtypes => 'regclass text', prosrc => 'pg_index_has_property' },
-- 
2.30.1


--rpt4sswdwkhtp4fw--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v6 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..addea5c1ed 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--mzh3msf6semlblkg--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v6 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..addea5c1ed 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--mzh3msf6semlblkg--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v7 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency using a new
pg_index_has_outdated_dependency(regclass) SQL function.

Catversion (should be) bumped.

Author: Julien Rouhaud <[email protected]>
Reviewed-by: Michael Paquier, Mark Dilger
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 doc/src/sgml/func.sgml             |  27 ++++--
 src/backend/catalog/index.c        |  22 +++++
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 src/include/catalog/pg_proc.dat    |   4 +
 5 files changed, 198 insertions(+), 32 deletions(-)

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 9492a3c6b9..0eda6678ac 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -26448,12 +26448,13 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
 
    <para>
     <xref linkend="functions-admin-index-table"/> shows the functions
-    available for index maintenance tasks.  (Note that these maintenance
-    tasks are normally done automatically by autovacuum; use of these
-    functions is only required in special cases.)
-    These functions cannot be executed during recovery.
-    Use of these functions is restricted to superusers and the owner
-    of the given index.
+    available for index maintenance tasks.  (Note that the maintenance
+    tasks performing actions on indexes are normally done automatically by
+    autovacuum; use of these functions is only required in special cases.)
+    The functions performing actions on indexes cannot be executed during
+    recovery.
+    Use of the functions performing actions on indexes is restricted to
+    superusers and the owner of the given index.
    </para>
 
    <table id="functions-admin-index-table">
@@ -26538,6 +26539,20 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
         option.
        </para></entry>
       </row>
+
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        <indexterm>
+         <primary>pg_index_has_outdated_dependency</primary>
+        </indexterm>
+        <function>pg_index_has_outdated_dependency</function> ( <parameter>index</parameter> <type>regclass</type> )
+        <returnvalue>boolean</returnvalue>
+       </para>
+       <para>
+        Check if the specified index has any outdated dependency.  For now only
+        dependency on collations are supported.
+       </para></entry>
+      </row>
      </tbody>
     </tgroup>
    </table>
diff --git a/src/backend/catalog/index.c b/src/backend/catalog/index.c
index 47e6a54149..6848e61df3 100644
--- a/src/backend/catalog/index.c
+++ b/src/backend/catalog/index.c
@@ -1390,6 +1390,28 @@ do_check_index_has_outdated_collation(const ObjectAddress *otherObject,
 	return false;
 }
 
+/*
+ * SQL wrapper around index_has_outdated_dependency.
+ */
+Datum
+pg_index_has_outdated_dependency(PG_FUNCTION_ARGS)
+{
+	Oid			indexOid = PG_GETARG_OID(0);
+	Relation	rel;
+	bool		res;
+
+	rel = try_index_open(indexOid, AccessShareLock);
+
+	if (rel == NULL)
+		PG_RETURN_NULL();
+
+	res = index_has_outdated_dependency(indexOid);
+
+	relation_close(rel, AccessShareLock);
+
+	PG_RETURN_BOOL(res);
+}
+
 /*
  * Check whether the given index has a dependency with an outdated
  * collation version.
diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..d252b1454f 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY pg_catalog.sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY pg_catalog.sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated dependencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..91fd602041 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/index "t2_id_idx" has no outdated dependency/],
+	'verbose reindexdb for outdated dependencies database wide reports all ignored indexes');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
diff --git a/src/include/catalog/pg_proc.dat b/src/include/catalog/pg_proc.dat
index 93393fcfd4..911c12ee2c 100644
--- a/src/include/catalog/pg_proc.dat
+++ b/src/include/catalog/pg_proc.dat
@@ -949,6 +949,10 @@
   proname => 'pg_indexam_has_property', provolatile => 's',
   prorettype => 'bool', proargtypes => 'oid text',
   prosrc => 'pg_indexam_has_property' },
+{ oid => '8102', descr => 'test property of an index',
+  proname => 'pg_index_has_outdated_dependency', provolatile => 's',
+  prorettype => 'bool', proargtypes => 'regclass',
+  prosrc => 'pg_index_has_outdated_dependency' },
 { oid => '637', descr => 'test property of an index',
   proname => 'pg_index_has_property', provolatile => 's', prorettype => 'bool',
   proargtypes => 'regclass text', prosrc => 'pg_index_has_property' },
-- 
2.30.1


--rpt4sswdwkhtp4fw--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v5 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index cf28176243..369d164e65 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(const ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -484,7 +521,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -509,7 +547,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -536,6 +574,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -641,7 +685,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -660,16 +704,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -687,7 +756,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -705,8 +785,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -754,7 +846,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -778,7 +870,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -797,6 +889,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--oao5se3im4osqowp--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v5 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index cf28176243..369d164e65 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(const ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -484,7 +521,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -509,7 +547,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -536,6 +574,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -641,7 +685,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -660,16 +704,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -687,7 +756,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -705,8 +785,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -754,7 +846,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -778,7 +870,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -797,6 +889,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--oao5se3im4osqowp--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v5 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index cf28176243..369d164e65 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(const ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -484,7 +521,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -509,7 +547,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -536,6 +574,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -641,7 +685,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -660,16 +704,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -687,7 +756,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -705,8 +785,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -754,7 +846,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -778,7 +870,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -797,6 +889,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--oao5se3im4osqowp--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v7 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency using a new
pg_index_has_outdated_dependency(regclass) SQL function.

Catversion (should be) bumped.

Author: Julien Rouhaud <[email protected]>
Reviewed-by: Michael Paquier, Mark Dilger
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 doc/src/sgml/func.sgml             |  27 ++++--
 src/backend/catalog/index.c        |  22 +++++
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 src/include/catalog/pg_proc.dat    |   4 +
 5 files changed, 198 insertions(+), 32 deletions(-)

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 9492a3c6b9..0eda6678ac 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -26448,12 +26448,13 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
 
    <para>
     <xref linkend="functions-admin-index-table"/> shows the functions
-    available for index maintenance tasks.  (Note that these maintenance
-    tasks are normally done automatically by autovacuum; use of these
-    functions is only required in special cases.)
-    These functions cannot be executed during recovery.
-    Use of these functions is restricted to superusers and the owner
-    of the given index.
+    available for index maintenance tasks.  (Note that the maintenance
+    tasks performing actions on indexes are normally done automatically by
+    autovacuum; use of these functions is only required in special cases.)
+    The functions performing actions on indexes cannot be executed during
+    recovery.
+    Use of the functions performing actions on indexes is restricted to
+    superusers and the owner of the given index.
    </para>
 
    <table id="functions-admin-index-table">
@@ -26538,6 +26539,20 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
         option.
        </para></entry>
       </row>
+
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        <indexterm>
+         <primary>pg_index_has_outdated_dependency</primary>
+        </indexterm>
+        <function>pg_index_has_outdated_dependency</function> ( <parameter>index</parameter> <type>regclass</type> )
+        <returnvalue>boolean</returnvalue>
+       </para>
+       <para>
+        Check if the specified index has any outdated dependency.  For now only
+        dependency on collations are supported.
+       </para></entry>
+      </row>
      </tbody>
     </tgroup>
    </table>
diff --git a/src/backend/catalog/index.c b/src/backend/catalog/index.c
index 47e6a54149..6848e61df3 100644
--- a/src/backend/catalog/index.c
+++ b/src/backend/catalog/index.c
@@ -1390,6 +1390,28 @@ do_check_index_has_outdated_collation(const ObjectAddress *otherObject,
 	return false;
 }
 
+/*
+ * SQL wrapper around index_has_outdated_dependency.
+ */
+Datum
+pg_index_has_outdated_dependency(PG_FUNCTION_ARGS)
+{
+	Oid			indexOid = PG_GETARG_OID(0);
+	Relation	rel;
+	bool		res;
+
+	rel = try_index_open(indexOid, AccessShareLock);
+
+	if (rel == NULL)
+		PG_RETURN_NULL();
+
+	res = index_has_outdated_dependency(indexOid);
+
+	relation_close(rel, AccessShareLock);
+
+	PG_RETURN_BOOL(res);
+}
+
 /*
  * Check whether the given index has a dependency with an outdated
  * collation version.
diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..d252b1454f 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY pg_catalog.sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY pg_catalog.sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated dependencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..91fd602041 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/index "t2_id_idx" has no outdated dependency/],
+	'verbose reindexdb for outdated dependencies database wide reports all ignored indexes');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
diff --git a/src/include/catalog/pg_proc.dat b/src/include/catalog/pg_proc.dat
index 93393fcfd4..911c12ee2c 100644
--- a/src/include/catalog/pg_proc.dat
+++ b/src/include/catalog/pg_proc.dat
@@ -949,6 +949,10 @@
   proname => 'pg_indexam_has_property', provolatile => 's',
   prorettype => 'bool', proargtypes => 'oid text',
   prosrc => 'pg_indexam_has_property' },
+{ oid => '8102', descr => 'test property of an index',
+  proname => 'pg_index_has_outdated_dependency', provolatile => 's',
+  prorettype => 'bool', proargtypes => 'regclass',
+  prosrc => 'pg_index_has_outdated_dependency' },
 { oid => '637', descr => 'test property of an index',
   proname => 'pg_index_has_property', provolatile => 's', prorettype => 'bool',
   proargtypes => 'regclass text', prosrc => 'pg_index_has_property' },
-- 
2.30.1


--rpt4sswdwkhtp4fw--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v7 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency using a new
pg_index_has_outdated_dependency(regclass) SQL function.

Catversion (should be) bumped.

Author: Julien Rouhaud <[email protected]>
Reviewed-by: Michael Paquier, Mark Dilger
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 doc/src/sgml/func.sgml             |  27 ++++--
 src/backend/catalog/index.c        |  22 +++++
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 src/include/catalog/pg_proc.dat    |   4 +
 5 files changed, 198 insertions(+), 32 deletions(-)

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 9492a3c6b9..0eda6678ac 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -26448,12 +26448,13 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
 
    <para>
     <xref linkend="functions-admin-index-table"/> shows the functions
-    available for index maintenance tasks.  (Note that these maintenance
-    tasks are normally done automatically by autovacuum; use of these
-    functions is only required in special cases.)
-    These functions cannot be executed during recovery.
-    Use of these functions is restricted to superusers and the owner
-    of the given index.
+    available for index maintenance tasks.  (Note that the maintenance
+    tasks performing actions on indexes are normally done automatically by
+    autovacuum; use of these functions is only required in special cases.)
+    The functions performing actions on indexes cannot be executed during
+    recovery.
+    Use of the functions performing actions on indexes is restricted to
+    superusers and the owner of the given index.
    </para>
 
    <table id="functions-admin-index-table">
@@ -26538,6 +26539,20 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
         option.
        </para></entry>
       </row>
+
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        <indexterm>
+         <primary>pg_index_has_outdated_dependency</primary>
+        </indexterm>
+        <function>pg_index_has_outdated_dependency</function> ( <parameter>index</parameter> <type>regclass</type> )
+        <returnvalue>boolean</returnvalue>
+       </para>
+       <para>
+        Check if the specified index has any outdated dependency.  For now only
+        dependency on collations are supported.
+       </para></entry>
+      </row>
      </tbody>
     </tgroup>
    </table>
diff --git a/src/backend/catalog/index.c b/src/backend/catalog/index.c
index 47e6a54149..6848e61df3 100644
--- a/src/backend/catalog/index.c
+++ b/src/backend/catalog/index.c
@@ -1390,6 +1390,28 @@ do_check_index_has_outdated_collation(const ObjectAddress *otherObject,
 	return false;
 }
 
+/*
+ * SQL wrapper around index_has_outdated_dependency.
+ */
+Datum
+pg_index_has_outdated_dependency(PG_FUNCTION_ARGS)
+{
+	Oid			indexOid = PG_GETARG_OID(0);
+	Relation	rel;
+	bool		res;
+
+	rel = try_index_open(indexOid, AccessShareLock);
+
+	if (rel == NULL)
+		PG_RETURN_NULL();
+
+	res = index_has_outdated_dependency(indexOid);
+
+	relation_close(rel, AccessShareLock);
+
+	PG_RETURN_BOOL(res);
+}
+
 /*
  * Check whether the given index has a dependency with an outdated
  * collation version.
diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..d252b1454f 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY pg_catalog.sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY pg_catalog.sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated dependencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..91fd602041 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/index "t2_id_idx" has no outdated dependency/],
+	'verbose reindexdb for outdated dependencies database wide reports all ignored indexes');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
diff --git a/src/include/catalog/pg_proc.dat b/src/include/catalog/pg_proc.dat
index 93393fcfd4..911c12ee2c 100644
--- a/src/include/catalog/pg_proc.dat
+++ b/src/include/catalog/pg_proc.dat
@@ -949,6 +949,10 @@
   proname => 'pg_indexam_has_property', provolatile => 's',
   prorettype => 'bool', proargtypes => 'oid text',
   prosrc => 'pg_indexam_has_property' },
+{ oid => '8102', descr => 'test property of an index',
+  proname => 'pg_index_has_outdated_dependency', provolatile => 's',
+  prorettype => 'bool', proargtypes => 'regclass',
+  prosrc => 'pg_index_has_outdated_dependency' },
 { oid => '637', descr => 'test property of an index',
   proname => 'pg_index_has_property', provolatile => 's', prorettype => 'bool',
   proargtypes => 'regclass text', prosrc => 'pg_index_has_property' },
-- 
2.30.1


--rpt4sswdwkhtp4fw--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v6 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..addea5c1ed 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--mzh3msf6semlblkg--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v7 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency using a new
pg_index_has_outdated_dependency(regclass) SQL function.

Catversion (should be) bumped.

Author: Julien Rouhaud <[email protected]>
Reviewed-by: Michael Paquier, Mark Dilger
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 doc/src/sgml/func.sgml             |  27 ++++--
 src/backend/catalog/index.c        |  22 +++++
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 src/include/catalog/pg_proc.dat    |   4 +
 5 files changed, 198 insertions(+), 32 deletions(-)

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 9492a3c6b9..0eda6678ac 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -26448,12 +26448,13 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
 
    <para>
     <xref linkend="functions-admin-index-table"/> shows the functions
-    available for index maintenance tasks.  (Note that these maintenance
-    tasks are normally done automatically by autovacuum; use of these
-    functions is only required in special cases.)
-    These functions cannot be executed during recovery.
-    Use of these functions is restricted to superusers and the owner
-    of the given index.
+    available for index maintenance tasks.  (Note that the maintenance
+    tasks performing actions on indexes are normally done automatically by
+    autovacuum; use of these functions is only required in special cases.)
+    The functions performing actions on indexes cannot be executed during
+    recovery.
+    Use of the functions performing actions on indexes is restricted to
+    superusers and the owner of the given index.
    </para>
 
    <table id="functions-admin-index-table">
@@ -26538,6 +26539,20 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
         option.
        </para></entry>
       </row>
+
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        <indexterm>
+         <primary>pg_index_has_outdated_dependency</primary>
+        </indexterm>
+        <function>pg_index_has_outdated_dependency</function> ( <parameter>index</parameter> <type>regclass</type> )
+        <returnvalue>boolean</returnvalue>
+       </para>
+       <para>
+        Check if the specified index has any outdated dependency.  For now only
+        dependency on collations are supported.
+       </para></entry>
+      </row>
      </tbody>
     </tgroup>
    </table>
diff --git a/src/backend/catalog/index.c b/src/backend/catalog/index.c
index 47e6a54149..6848e61df3 100644
--- a/src/backend/catalog/index.c
+++ b/src/backend/catalog/index.c
@@ -1390,6 +1390,28 @@ do_check_index_has_outdated_collation(const ObjectAddress *otherObject,
 	return false;
 }
 
+/*
+ * SQL wrapper around index_has_outdated_dependency.
+ */
+Datum
+pg_index_has_outdated_dependency(PG_FUNCTION_ARGS)
+{
+	Oid			indexOid = PG_GETARG_OID(0);
+	Relation	rel;
+	bool		res;
+
+	rel = try_index_open(indexOid, AccessShareLock);
+
+	if (rel == NULL)
+		PG_RETURN_NULL();
+
+	res = index_has_outdated_dependency(indexOid);
+
+	relation_close(rel, AccessShareLock);
+
+	PG_RETURN_BOOL(res);
+}
+
 /*
  * Check whether the given index has a dependency with an outdated
  * collation version.
diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..d252b1454f 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY pg_catalog.sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY pg_catalog.sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated dependencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..91fd602041 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/index "t2_id_idx" has no outdated dependency/],
+	'verbose reindexdb for outdated dependencies database wide reports all ignored indexes');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
diff --git a/src/include/catalog/pg_proc.dat b/src/include/catalog/pg_proc.dat
index 93393fcfd4..911c12ee2c 100644
--- a/src/include/catalog/pg_proc.dat
+++ b/src/include/catalog/pg_proc.dat
@@ -949,6 +949,10 @@
   proname => 'pg_indexam_has_property', provolatile => 's',
   prorettype => 'bool', proargtypes => 'oid text',
   prosrc => 'pg_indexam_has_property' },
+{ oid => '8102', descr => 'test property of an index',
+  proname => 'pg_index_has_outdated_dependency', provolatile => 's',
+  prorettype => 'bool', proargtypes => 'regclass',
+  prosrc => 'pg_index_has_outdated_dependency' },
 { oid => '637', descr => 'test property of an index',
   proname => 'pg_index_has_property', provolatile => 's', prorettype => 'bool',
   proargtypes => 'regclass text', prosrc => 'pg_index_has_property' },
-- 
2.30.1


--rpt4sswdwkhtp4fw--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v6 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..addea5c1ed 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--mzh3msf6semlblkg--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v6 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..addea5c1ed 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--mzh3msf6semlblkg--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v7 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency using a new
pg_index_has_outdated_dependency(regclass) SQL function.

Catversion (should be) bumped.

Author: Julien Rouhaud <[email protected]>
Reviewed-by: Michael Paquier, Mark Dilger
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 doc/src/sgml/func.sgml             |  27 ++++--
 src/backend/catalog/index.c        |  22 +++++
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 src/include/catalog/pg_proc.dat    |   4 +
 5 files changed, 198 insertions(+), 32 deletions(-)

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 9492a3c6b9..0eda6678ac 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -26448,12 +26448,13 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
 
    <para>
     <xref linkend="functions-admin-index-table"/> shows the functions
-    available for index maintenance tasks.  (Note that these maintenance
-    tasks are normally done automatically by autovacuum; use of these
-    functions is only required in special cases.)
-    These functions cannot be executed during recovery.
-    Use of these functions is restricted to superusers and the owner
-    of the given index.
+    available for index maintenance tasks.  (Note that the maintenance
+    tasks performing actions on indexes are normally done automatically by
+    autovacuum; use of these functions is only required in special cases.)
+    The functions performing actions on indexes cannot be executed during
+    recovery.
+    Use of the functions performing actions on indexes is restricted to
+    superusers and the owner of the given index.
    </para>
 
    <table id="functions-admin-index-table">
@@ -26538,6 +26539,20 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
         option.
        </para></entry>
       </row>
+
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        <indexterm>
+         <primary>pg_index_has_outdated_dependency</primary>
+        </indexterm>
+        <function>pg_index_has_outdated_dependency</function> ( <parameter>index</parameter> <type>regclass</type> )
+        <returnvalue>boolean</returnvalue>
+       </para>
+       <para>
+        Check if the specified index has any outdated dependency.  For now only
+        dependency on collations are supported.
+       </para></entry>
+      </row>
      </tbody>
     </tgroup>
    </table>
diff --git a/src/backend/catalog/index.c b/src/backend/catalog/index.c
index 47e6a54149..6848e61df3 100644
--- a/src/backend/catalog/index.c
+++ b/src/backend/catalog/index.c
@@ -1390,6 +1390,28 @@ do_check_index_has_outdated_collation(const ObjectAddress *otherObject,
 	return false;
 }
 
+/*
+ * SQL wrapper around index_has_outdated_dependency.
+ */
+Datum
+pg_index_has_outdated_dependency(PG_FUNCTION_ARGS)
+{
+	Oid			indexOid = PG_GETARG_OID(0);
+	Relation	rel;
+	bool		res;
+
+	rel = try_index_open(indexOid, AccessShareLock);
+
+	if (rel == NULL)
+		PG_RETURN_NULL();
+
+	res = index_has_outdated_dependency(indexOid);
+
+	relation_close(rel, AccessShareLock);
+
+	PG_RETURN_BOOL(res);
+}
+
 /*
  * Check whether the given index has a dependency with an outdated
  * collation version.
diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..d252b1454f 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY pg_catalog.sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY pg_catalog.sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated dependencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..91fd602041 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/index "t2_id_idx" has no outdated dependency/],
+	'verbose reindexdb for outdated dependencies database wide reports all ignored indexes');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
diff --git a/src/include/catalog/pg_proc.dat b/src/include/catalog/pg_proc.dat
index 93393fcfd4..911c12ee2c 100644
--- a/src/include/catalog/pg_proc.dat
+++ b/src/include/catalog/pg_proc.dat
@@ -949,6 +949,10 @@
   proname => 'pg_indexam_has_property', provolatile => 's',
   prorettype => 'bool', proargtypes => 'oid text',
   prosrc => 'pg_indexam_has_property' },
+{ oid => '8102', descr => 'test property of an index',
+  proname => 'pg_index_has_outdated_dependency', provolatile => 's',
+  prorettype => 'bool', proargtypes => 'regclass',
+  prosrc => 'pg_index_has_outdated_dependency' },
 { oid => '637', descr => 'test property of an index',
   proname => 'pg_index_has_property', provolatile => 's', prorettype => 'bool',
   proargtypes => 'regclass text', prosrc => 'pg_index_has_property' },
-- 
2.30.1


--rpt4sswdwkhtp4fw--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v5 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index cf28176243..369d164e65 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(const ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -484,7 +521,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -509,7 +547,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -536,6 +574,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -641,7 +685,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -660,16 +704,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -687,7 +756,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -705,8 +785,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -754,7 +846,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -778,7 +870,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -797,6 +889,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--oao5se3im4osqowp--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v7 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency using a new
pg_index_has_outdated_dependency(regclass) SQL function.

Catversion (should be) bumped.

Author: Julien Rouhaud <[email protected]>
Reviewed-by: Michael Paquier, Mark Dilger
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 doc/src/sgml/func.sgml             |  27 ++++--
 src/backend/catalog/index.c        |  22 +++++
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 src/include/catalog/pg_proc.dat    |   4 +
 5 files changed, 198 insertions(+), 32 deletions(-)

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 9492a3c6b9..0eda6678ac 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -26448,12 +26448,13 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
 
    <para>
     <xref linkend="functions-admin-index-table"/> shows the functions
-    available for index maintenance tasks.  (Note that these maintenance
-    tasks are normally done automatically by autovacuum; use of these
-    functions is only required in special cases.)
-    These functions cannot be executed during recovery.
-    Use of these functions is restricted to superusers and the owner
-    of the given index.
+    available for index maintenance tasks.  (Note that the maintenance
+    tasks performing actions on indexes are normally done automatically by
+    autovacuum; use of these functions is only required in special cases.)
+    The functions performing actions on indexes cannot be executed during
+    recovery.
+    Use of the functions performing actions on indexes is restricted to
+    superusers and the owner of the given index.
    </para>
 
    <table id="functions-admin-index-table">
@@ -26538,6 +26539,20 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
         option.
        </para></entry>
       </row>
+
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        <indexterm>
+         <primary>pg_index_has_outdated_dependency</primary>
+        </indexterm>
+        <function>pg_index_has_outdated_dependency</function> ( <parameter>index</parameter> <type>regclass</type> )
+        <returnvalue>boolean</returnvalue>
+       </para>
+       <para>
+        Check if the specified index has any outdated dependency.  For now only
+        dependency on collations are supported.
+       </para></entry>
+      </row>
      </tbody>
     </tgroup>
    </table>
diff --git a/src/backend/catalog/index.c b/src/backend/catalog/index.c
index 47e6a54149..6848e61df3 100644
--- a/src/backend/catalog/index.c
+++ b/src/backend/catalog/index.c
@@ -1390,6 +1390,28 @@ do_check_index_has_outdated_collation(const ObjectAddress *otherObject,
 	return false;
 }
 
+/*
+ * SQL wrapper around index_has_outdated_dependency.
+ */
+Datum
+pg_index_has_outdated_dependency(PG_FUNCTION_ARGS)
+{
+	Oid			indexOid = PG_GETARG_OID(0);
+	Relation	rel;
+	bool		res;
+
+	rel = try_index_open(indexOid, AccessShareLock);
+
+	if (rel == NULL)
+		PG_RETURN_NULL();
+
+	res = index_has_outdated_dependency(indexOid);
+
+	relation_close(rel, AccessShareLock);
+
+	PG_RETURN_BOOL(res);
+}
+
 /*
  * Check whether the given index has a dependency with an outdated
  * collation version.
diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..d252b1454f 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY pg_catalog.sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY pg_catalog.sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated dependencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..91fd602041 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/index "t2_id_idx" has no outdated dependency/],
+	'verbose reindexdb for outdated dependencies database wide reports all ignored indexes');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
diff --git a/src/include/catalog/pg_proc.dat b/src/include/catalog/pg_proc.dat
index 93393fcfd4..911c12ee2c 100644
--- a/src/include/catalog/pg_proc.dat
+++ b/src/include/catalog/pg_proc.dat
@@ -949,6 +949,10 @@
   proname => 'pg_indexam_has_property', provolatile => 's',
   prorettype => 'bool', proargtypes => 'oid text',
   prosrc => 'pg_indexam_has_property' },
+{ oid => '8102', descr => 'test property of an index',
+  proname => 'pg_index_has_outdated_dependency', provolatile => 's',
+  prorettype => 'bool', proargtypes => 'regclass',
+  prosrc => 'pg_index_has_outdated_dependency' },
 { oid => '637', descr => 'test property of an index',
   proname => 'pg_index_has_property', provolatile => 's', prorettype => 'bool',
   proargtypes => 'regclass text', prosrc => 'pg_index_has_property' },
-- 
2.30.1


--rpt4sswdwkhtp4fw--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v5 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index cf28176243..369d164e65 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(const ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -484,7 +521,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -509,7 +547,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -536,6 +574,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -641,7 +685,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -660,16 +704,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -687,7 +756,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -705,8 +785,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -754,7 +846,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -778,7 +870,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -797,6 +889,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--oao5se3im4osqowp--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v7 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency using a new
pg_index_has_outdated_dependency(regclass) SQL function.

Catversion (should be) bumped.

Author: Julien Rouhaud <[email protected]>
Reviewed-by: Michael Paquier, Mark Dilger
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 doc/src/sgml/func.sgml             |  27 ++++--
 src/backend/catalog/index.c        |  22 +++++
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 src/include/catalog/pg_proc.dat    |   4 +
 5 files changed, 198 insertions(+), 32 deletions(-)

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 9492a3c6b9..0eda6678ac 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -26448,12 +26448,13 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
 
    <para>
     <xref linkend="functions-admin-index-table"/> shows the functions
-    available for index maintenance tasks.  (Note that these maintenance
-    tasks are normally done automatically by autovacuum; use of these
-    functions is only required in special cases.)
-    These functions cannot be executed during recovery.
-    Use of these functions is restricted to superusers and the owner
-    of the given index.
+    available for index maintenance tasks.  (Note that the maintenance
+    tasks performing actions on indexes are normally done automatically by
+    autovacuum; use of these functions is only required in special cases.)
+    The functions performing actions on indexes cannot be executed during
+    recovery.
+    Use of the functions performing actions on indexes is restricted to
+    superusers and the owner of the given index.
    </para>
 
    <table id="functions-admin-index-table">
@@ -26538,6 +26539,20 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
         option.
        </para></entry>
       </row>
+
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        <indexterm>
+         <primary>pg_index_has_outdated_dependency</primary>
+        </indexterm>
+        <function>pg_index_has_outdated_dependency</function> ( <parameter>index</parameter> <type>regclass</type> )
+        <returnvalue>boolean</returnvalue>
+       </para>
+       <para>
+        Check if the specified index has any outdated dependency.  For now only
+        dependency on collations are supported.
+       </para></entry>
+      </row>
      </tbody>
     </tgroup>
    </table>
diff --git a/src/backend/catalog/index.c b/src/backend/catalog/index.c
index 47e6a54149..6848e61df3 100644
--- a/src/backend/catalog/index.c
+++ b/src/backend/catalog/index.c
@@ -1390,6 +1390,28 @@ do_check_index_has_outdated_collation(const ObjectAddress *otherObject,
 	return false;
 }
 
+/*
+ * SQL wrapper around index_has_outdated_dependency.
+ */
+Datum
+pg_index_has_outdated_dependency(PG_FUNCTION_ARGS)
+{
+	Oid			indexOid = PG_GETARG_OID(0);
+	Relation	rel;
+	bool		res;
+
+	rel = try_index_open(indexOid, AccessShareLock);
+
+	if (rel == NULL)
+		PG_RETURN_NULL();
+
+	res = index_has_outdated_dependency(indexOid);
+
+	relation_close(rel, AccessShareLock);
+
+	PG_RETURN_BOOL(res);
+}
+
 /*
  * Check whether the given index has a dependency with an outdated
  * collation version.
diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..d252b1454f 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY pg_catalog.sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY pg_catalog.sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated dependencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..91fd602041 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/index "t2_id_idx" has no outdated dependency/],
+	'verbose reindexdb for outdated dependencies database wide reports all ignored indexes');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
diff --git a/src/include/catalog/pg_proc.dat b/src/include/catalog/pg_proc.dat
index 93393fcfd4..911c12ee2c 100644
--- a/src/include/catalog/pg_proc.dat
+++ b/src/include/catalog/pg_proc.dat
@@ -949,6 +949,10 @@
   proname => 'pg_indexam_has_property', provolatile => 's',
   prorettype => 'bool', proargtypes => 'oid text',
   prosrc => 'pg_indexam_has_property' },
+{ oid => '8102', descr => 'test property of an index',
+  proname => 'pg_index_has_outdated_dependency', provolatile => 's',
+  prorettype => 'bool', proargtypes => 'regclass',
+  prosrc => 'pg_index_has_outdated_dependency' },
 { oid => '637', descr => 'test property of an index',
   proname => 'pg_index_has_property', provolatile => 's', prorettype => 'bool',
   proargtypes => 'regclass text', prosrc => 'pg_index_has_property' },
-- 
2.30.1


--rpt4sswdwkhtp4fw--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v7 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency using a new
pg_index_has_outdated_dependency(regclass) SQL function.

Catversion (should be) bumped.

Author: Julien Rouhaud <[email protected]>
Reviewed-by: Michael Paquier, Mark Dilger
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 doc/src/sgml/func.sgml             |  27 ++++--
 src/backend/catalog/index.c        |  22 +++++
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 src/include/catalog/pg_proc.dat    |   4 +
 5 files changed, 198 insertions(+), 32 deletions(-)

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 9492a3c6b9..0eda6678ac 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -26448,12 +26448,13 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
 
    <para>
     <xref linkend="functions-admin-index-table"/> shows the functions
-    available for index maintenance tasks.  (Note that these maintenance
-    tasks are normally done automatically by autovacuum; use of these
-    functions is only required in special cases.)
-    These functions cannot be executed during recovery.
-    Use of these functions is restricted to superusers and the owner
-    of the given index.
+    available for index maintenance tasks.  (Note that the maintenance
+    tasks performing actions on indexes are normally done automatically by
+    autovacuum; use of these functions is only required in special cases.)
+    The functions performing actions on indexes cannot be executed during
+    recovery.
+    Use of the functions performing actions on indexes is restricted to
+    superusers and the owner of the given index.
    </para>
 
    <table id="functions-admin-index-table">
@@ -26538,6 +26539,20 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
         option.
        </para></entry>
       </row>
+
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        <indexterm>
+         <primary>pg_index_has_outdated_dependency</primary>
+        </indexterm>
+        <function>pg_index_has_outdated_dependency</function> ( <parameter>index</parameter> <type>regclass</type> )
+        <returnvalue>boolean</returnvalue>
+       </para>
+       <para>
+        Check if the specified index has any outdated dependency.  For now only
+        dependency on collations are supported.
+       </para></entry>
+      </row>
      </tbody>
     </tgroup>
    </table>
diff --git a/src/backend/catalog/index.c b/src/backend/catalog/index.c
index 47e6a54149..6848e61df3 100644
--- a/src/backend/catalog/index.c
+++ b/src/backend/catalog/index.c
@@ -1390,6 +1390,28 @@ do_check_index_has_outdated_collation(const ObjectAddress *otherObject,
 	return false;
 }
 
+/*
+ * SQL wrapper around index_has_outdated_dependency.
+ */
+Datum
+pg_index_has_outdated_dependency(PG_FUNCTION_ARGS)
+{
+	Oid			indexOid = PG_GETARG_OID(0);
+	Relation	rel;
+	bool		res;
+
+	rel = try_index_open(indexOid, AccessShareLock);
+
+	if (rel == NULL)
+		PG_RETURN_NULL();
+
+	res = index_has_outdated_dependency(indexOid);
+
+	relation_close(rel, AccessShareLock);
+
+	PG_RETURN_BOOL(res);
+}
+
 /*
  * Check whether the given index has a dependency with an outdated
  * collation version.
diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..d252b1454f 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY pg_catalog.sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY pg_catalog.sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated dependencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..91fd602041 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/index "t2_id_idx" has no outdated dependency/],
+	'verbose reindexdb for outdated dependencies database wide reports all ignored indexes');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
diff --git a/src/include/catalog/pg_proc.dat b/src/include/catalog/pg_proc.dat
index 93393fcfd4..911c12ee2c 100644
--- a/src/include/catalog/pg_proc.dat
+++ b/src/include/catalog/pg_proc.dat
@@ -949,6 +949,10 @@
   proname => 'pg_indexam_has_property', provolatile => 's',
   prorettype => 'bool', proargtypes => 'oid text',
   prosrc => 'pg_indexam_has_property' },
+{ oid => '8102', descr => 'test property of an index',
+  proname => 'pg_index_has_outdated_dependency', provolatile => 's',
+  prorettype => 'bool', proargtypes => 'regclass',
+  prosrc => 'pg_index_has_outdated_dependency' },
 { oid => '637', descr => 'test property of an index',
   proname => 'pg_index_has_property', provolatile => 's', prorettype => 'bool',
   proargtypes => 'regclass text', prosrc => 'pg_index_has_property' },
-- 
2.30.1


--rpt4sswdwkhtp4fw--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v7 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency using a new
pg_index_has_outdated_dependency(regclass) SQL function.

Catversion (should be) bumped.

Author: Julien Rouhaud <[email protected]>
Reviewed-by: Michael Paquier, Mark Dilger
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 doc/src/sgml/func.sgml             |  27 ++++--
 src/backend/catalog/index.c        |  22 +++++
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 src/include/catalog/pg_proc.dat    |   4 +
 5 files changed, 198 insertions(+), 32 deletions(-)

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 9492a3c6b9..0eda6678ac 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -26448,12 +26448,13 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
 
    <para>
     <xref linkend="functions-admin-index-table"/> shows the functions
-    available for index maintenance tasks.  (Note that these maintenance
-    tasks are normally done automatically by autovacuum; use of these
-    functions is only required in special cases.)
-    These functions cannot be executed during recovery.
-    Use of these functions is restricted to superusers and the owner
-    of the given index.
+    available for index maintenance tasks.  (Note that the maintenance
+    tasks performing actions on indexes are normally done automatically by
+    autovacuum; use of these functions is only required in special cases.)
+    The functions performing actions on indexes cannot be executed during
+    recovery.
+    Use of the functions performing actions on indexes is restricted to
+    superusers and the owner of the given index.
    </para>
 
    <table id="functions-admin-index-table">
@@ -26538,6 +26539,20 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
         option.
        </para></entry>
       </row>
+
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        <indexterm>
+         <primary>pg_index_has_outdated_dependency</primary>
+        </indexterm>
+        <function>pg_index_has_outdated_dependency</function> ( <parameter>index</parameter> <type>regclass</type> )
+        <returnvalue>boolean</returnvalue>
+       </para>
+       <para>
+        Check if the specified index has any outdated dependency.  For now only
+        dependency on collations are supported.
+       </para></entry>
+      </row>
      </tbody>
     </tgroup>
    </table>
diff --git a/src/backend/catalog/index.c b/src/backend/catalog/index.c
index 47e6a54149..6848e61df3 100644
--- a/src/backend/catalog/index.c
+++ b/src/backend/catalog/index.c
@@ -1390,6 +1390,28 @@ do_check_index_has_outdated_collation(const ObjectAddress *otherObject,
 	return false;
 }
 
+/*
+ * SQL wrapper around index_has_outdated_dependency.
+ */
+Datum
+pg_index_has_outdated_dependency(PG_FUNCTION_ARGS)
+{
+	Oid			indexOid = PG_GETARG_OID(0);
+	Relation	rel;
+	bool		res;
+
+	rel = try_index_open(indexOid, AccessShareLock);
+
+	if (rel == NULL)
+		PG_RETURN_NULL();
+
+	res = index_has_outdated_dependency(indexOid);
+
+	relation_close(rel, AccessShareLock);
+
+	PG_RETURN_BOOL(res);
+}
+
 /*
  * Check whether the given index has a dependency with an outdated
  * collation version.
diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..d252b1454f 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY pg_catalog.sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY pg_catalog.sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated dependencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..91fd602041 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/index "t2_id_idx" has no outdated dependency/],
+	'verbose reindexdb for outdated dependencies database wide reports all ignored indexes');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
diff --git a/src/include/catalog/pg_proc.dat b/src/include/catalog/pg_proc.dat
index 93393fcfd4..911c12ee2c 100644
--- a/src/include/catalog/pg_proc.dat
+++ b/src/include/catalog/pg_proc.dat
@@ -949,6 +949,10 @@
   proname => 'pg_indexam_has_property', provolatile => 's',
   prorettype => 'bool', proargtypes => 'oid text',
   prosrc => 'pg_indexam_has_property' },
+{ oid => '8102', descr => 'test property of an index',
+  proname => 'pg_index_has_outdated_dependency', provolatile => 's',
+  prorettype => 'bool', proargtypes => 'regclass',
+  prosrc => 'pg_index_has_outdated_dependency' },
 { oid => '637', descr => 'test property of an index',
   proname => 'pg_index_has_property', provolatile => 's', prorettype => 'bool',
   proargtypes => 'regclass text', prosrc => 'pg_index_has_property' },
-- 
2.30.1


--rpt4sswdwkhtp4fw--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v5 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index cf28176243..369d164e65 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(const ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -484,7 +521,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -509,7 +547,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -536,6 +574,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -641,7 +685,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -660,16 +704,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -687,7 +756,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -705,8 +785,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -754,7 +846,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -778,7 +870,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -797,6 +889,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--oao5se3im4osqowp--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v5 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index cf28176243..369d164e65 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(const ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -484,7 +521,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -509,7 +547,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -536,6 +574,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -641,7 +685,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -660,16 +704,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -687,7 +756,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -705,8 +785,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -754,7 +846,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -778,7 +870,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -797,6 +889,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--oao5se3im4osqowp--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v5 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index cf28176243..369d164e65 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(const ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -484,7 +521,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -509,7 +547,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -536,6 +574,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -641,7 +685,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -660,16 +704,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -687,7 +756,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -705,8 +785,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -754,7 +846,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -778,7 +870,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -797,6 +889,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--oao5se3im4osqowp--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v5 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index cf28176243..369d164e65 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(const ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -484,7 +521,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -509,7 +547,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -536,6 +574,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -641,7 +685,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -660,16 +704,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -687,7 +756,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -705,8 +785,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -754,7 +846,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -778,7 +870,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -797,6 +889,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--oao5se3im4osqowp--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v5 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index cf28176243..369d164e65 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(const ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -484,7 +521,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -509,7 +547,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -536,6 +574,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -641,7 +685,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -660,16 +704,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -687,7 +756,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -705,8 +785,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -754,7 +846,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -778,7 +870,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -797,6 +889,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--oao5se3im4osqowp--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v5 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index cf28176243..369d164e65 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(const ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -484,7 +521,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -509,7 +547,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -536,6 +574,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -641,7 +685,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -660,16 +704,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -687,7 +756,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -705,8 +785,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -754,7 +846,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -778,7 +870,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -797,6 +889,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--oao5se3im4osqowp--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v6 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..addea5c1ed 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--mzh3msf6semlblkg--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v6 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..addea5c1ed 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--mzh3msf6semlblkg--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v6 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..addea5c1ed 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--mzh3msf6semlblkg--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v5 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index cf28176243..369d164e65 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(const ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -484,7 +521,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -509,7 +547,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -536,6 +574,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -641,7 +685,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -660,16 +704,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -687,7 +756,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -705,8 +785,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -754,7 +846,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -778,7 +870,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -797,6 +889,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--oao5se3im4osqowp--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v7 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency using a new
pg_index_has_outdated_dependency(regclass) SQL function.

Catversion (should be) bumped.

Author: Julien Rouhaud <[email protected]>
Reviewed-by: Michael Paquier, Mark Dilger
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 doc/src/sgml/func.sgml             |  27 ++++--
 src/backend/catalog/index.c        |  22 +++++
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 src/include/catalog/pg_proc.dat    |   4 +
 5 files changed, 198 insertions(+), 32 deletions(-)

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 9492a3c6b9..0eda6678ac 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -26448,12 +26448,13 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
 
    <para>
     <xref linkend="functions-admin-index-table"/> shows the functions
-    available for index maintenance tasks.  (Note that these maintenance
-    tasks are normally done automatically by autovacuum; use of these
-    functions is only required in special cases.)
-    These functions cannot be executed during recovery.
-    Use of these functions is restricted to superusers and the owner
-    of the given index.
+    available for index maintenance tasks.  (Note that the maintenance
+    tasks performing actions on indexes are normally done automatically by
+    autovacuum; use of these functions is only required in special cases.)
+    The functions performing actions on indexes cannot be executed during
+    recovery.
+    Use of the functions performing actions on indexes is restricted to
+    superusers and the owner of the given index.
    </para>
 
    <table id="functions-admin-index-table">
@@ -26538,6 +26539,20 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
         option.
        </para></entry>
       </row>
+
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        <indexterm>
+         <primary>pg_index_has_outdated_dependency</primary>
+        </indexterm>
+        <function>pg_index_has_outdated_dependency</function> ( <parameter>index</parameter> <type>regclass</type> )
+        <returnvalue>boolean</returnvalue>
+       </para>
+       <para>
+        Check if the specified index has any outdated dependency.  For now only
+        dependency on collations are supported.
+       </para></entry>
+      </row>
      </tbody>
     </tgroup>
    </table>
diff --git a/src/backend/catalog/index.c b/src/backend/catalog/index.c
index 47e6a54149..6848e61df3 100644
--- a/src/backend/catalog/index.c
+++ b/src/backend/catalog/index.c
@@ -1390,6 +1390,28 @@ do_check_index_has_outdated_collation(const ObjectAddress *otherObject,
 	return false;
 }
 
+/*
+ * SQL wrapper around index_has_outdated_dependency.
+ */
+Datum
+pg_index_has_outdated_dependency(PG_FUNCTION_ARGS)
+{
+	Oid			indexOid = PG_GETARG_OID(0);
+	Relation	rel;
+	bool		res;
+
+	rel = try_index_open(indexOid, AccessShareLock);
+
+	if (rel == NULL)
+		PG_RETURN_NULL();
+
+	res = index_has_outdated_dependency(indexOid);
+
+	relation_close(rel, AccessShareLock);
+
+	PG_RETURN_BOOL(res);
+}
+
 /*
  * Check whether the given index has a dependency with an outdated
  * collation version.
diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..d252b1454f 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY pg_catalog.sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY pg_catalog.sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated dependencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..91fd602041 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/index "t2_id_idx" has no outdated dependency/],
+	'verbose reindexdb for outdated dependencies database wide reports all ignored indexes');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
diff --git a/src/include/catalog/pg_proc.dat b/src/include/catalog/pg_proc.dat
index 93393fcfd4..911c12ee2c 100644
--- a/src/include/catalog/pg_proc.dat
+++ b/src/include/catalog/pg_proc.dat
@@ -949,6 +949,10 @@
   proname => 'pg_indexam_has_property', provolatile => 's',
   prorettype => 'bool', proargtypes => 'oid text',
   prosrc => 'pg_indexam_has_property' },
+{ oid => '8102', descr => 'test property of an index',
+  proname => 'pg_index_has_outdated_dependency', provolatile => 's',
+  prorettype => 'bool', proargtypes => 'regclass',
+  prosrc => 'pg_index_has_outdated_dependency' },
 { oid => '637', descr => 'test property of an index',
   proname => 'pg_index_has_property', provolatile => 's', prorettype => 'bool',
   proargtypes => 'regclass text', prosrc => 'pg_index_has_property' },
-- 
2.30.1


--rpt4sswdwkhtp4fw--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v7 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency using a new
pg_index_has_outdated_dependency(regclass) SQL function.

Catversion (should be) bumped.

Author: Julien Rouhaud <[email protected]>
Reviewed-by: Michael Paquier, Mark Dilger
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 doc/src/sgml/func.sgml             |  27 ++++--
 src/backend/catalog/index.c        |  22 +++++
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 src/include/catalog/pg_proc.dat    |   4 +
 5 files changed, 198 insertions(+), 32 deletions(-)

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 9492a3c6b9..0eda6678ac 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -26448,12 +26448,13 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
 
    <para>
     <xref linkend="functions-admin-index-table"/> shows the functions
-    available for index maintenance tasks.  (Note that these maintenance
-    tasks are normally done automatically by autovacuum; use of these
-    functions is only required in special cases.)
-    These functions cannot be executed during recovery.
-    Use of these functions is restricted to superusers and the owner
-    of the given index.
+    available for index maintenance tasks.  (Note that the maintenance
+    tasks performing actions on indexes are normally done automatically by
+    autovacuum; use of these functions is only required in special cases.)
+    The functions performing actions on indexes cannot be executed during
+    recovery.
+    Use of the functions performing actions on indexes is restricted to
+    superusers and the owner of the given index.
    </para>
 
    <table id="functions-admin-index-table">
@@ -26538,6 +26539,20 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
         option.
        </para></entry>
       </row>
+
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        <indexterm>
+         <primary>pg_index_has_outdated_dependency</primary>
+        </indexterm>
+        <function>pg_index_has_outdated_dependency</function> ( <parameter>index</parameter> <type>regclass</type> )
+        <returnvalue>boolean</returnvalue>
+       </para>
+       <para>
+        Check if the specified index has any outdated dependency.  For now only
+        dependency on collations are supported.
+       </para></entry>
+      </row>
      </tbody>
     </tgroup>
    </table>
diff --git a/src/backend/catalog/index.c b/src/backend/catalog/index.c
index 47e6a54149..6848e61df3 100644
--- a/src/backend/catalog/index.c
+++ b/src/backend/catalog/index.c
@@ -1390,6 +1390,28 @@ do_check_index_has_outdated_collation(const ObjectAddress *otherObject,
 	return false;
 }
 
+/*
+ * SQL wrapper around index_has_outdated_dependency.
+ */
+Datum
+pg_index_has_outdated_dependency(PG_FUNCTION_ARGS)
+{
+	Oid			indexOid = PG_GETARG_OID(0);
+	Relation	rel;
+	bool		res;
+
+	rel = try_index_open(indexOid, AccessShareLock);
+
+	if (rel == NULL)
+		PG_RETURN_NULL();
+
+	res = index_has_outdated_dependency(indexOid);
+
+	relation_close(rel, AccessShareLock);
+
+	PG_RETURN_BOOL(res);
+}
+
 /*
  * Check whether the given index has a dependency with an outdated
  * collation version.
diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..d252b1454f 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY pg_catalog.sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY pg_catalog.sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated dependencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..91fd602041 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/index "t2_id_idx" has no outdated dependency/],
+	'verbose reindexdb for outdated dependencies database wide reports all ignored indexes');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
diff --git a/src/include/catalog/pg_proc.dat b/src/include/catalog/pg_proc.dat
index 93393fcfd4..911c12ee2c 100644
--- a/src/include/catalog/pg_proc.dat
+++ b/src/include/catalog/pg_proc.dat
@@ -949,6 +949,10 @@
   proname => 'pg_indexam_has_property', provolatile => 's',
   prorettype => 'bool', proargtypes => 'oid text',
   prosrc => 'pg_indexam_has_property' },
+{ oid => '8102', descr => 'test property of an index',
+  proname => 'pg_index_has_outdated_dependency', provolatile => 's',
+  prorettype => 'bool', proargtypes => 'regclass',
+  prosrc => 'pg_index_has_outdated_dependency' },
 { oid => '637', descr => 'test property of an index',
   proname => 'pg_index_has_property', provolatile => 's', prorettype => 'bool',
   proargtypes => 'regclass text', prosrc => 'pg_index_has_property' },
-- 
2.30.1


--rpt4sswdwkhtp4fw--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v7 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency using a new
pg_index_has_outdated_dependency(regclass) SQL function.

Catversion (should be) bumped.

Author: Julien Rouhaud <[email protected]>
Reviewed-by: Michael Paquier, Mark Dilger
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 doc/src/sgml/func.sgml             |  27 ++++--
 src/backend/catalog/index.c        |  22 +++++
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 src/include/catalog/pg_proc.dat    |   4 +
 5 files changed, 198 insertions(+), 32 deletions(-)

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 9492a3c6b9..0eda6678ac 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -26448,12 +26448,13 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
 
    <para>
     <xref linkend="functions-admin-index-table"/> shows the functions
-    available for index maintenance tasks.  (Note that these maintenance
-    tasks are normally done automatically by autovacuum; use of these
-    functions is only required in special cases.)
-    These functions cannot be executed during recovery.
-    Use of these functions is restricted to superusers and the owner
-    of the given index.
+    available for index maintenance tasks.  (Note that the maintenance
+    tasks performing actions on indexes are normally done automatically by
+    autovacuum; use of these functions is only required in special cases.)
+    The functions performing actions on indexes cannot be executed during
+    recovery.
+    Use of the functions performing actions on indexes is restricted to
+    superusers and the owner of the given index.
    </para>
 
    <table id="functions-admin-index-table">
@@ -26538,6 +26539,20 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
         option.
        </para></entry>
       </row>
+
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        <indexterm>
+         <primary>pg_index_has_outdated_dependency</primary>
+        </indexterm>
+        <function>pg_index_has_outdated_dependency</function> ( <parameter>index</parameter> <type>regclass</type> )
+        <returnvalue>boolean</returnvalue>
+       </para>
+       <para>
+        Check if the specified index has any outdated dependency.  For now only
+        dependency on collations are supported.
+       </para></entry>
+      </row>
      </tbody>
     </tgroup>
    </table>
diff --git a/src/backend/catalog/index.c b/src/backend/catalog/index.c
index 47e6a54149..6848e61df3 100644
--- a/src/backend/catalog/index.c
+++ b/src/backend/catalog/index.c
@@ -1390,6 +1390,28 @@ do_check_index_has_outdated_collation(const ObjectAddress *otherObject,
 	return false;
 }
 
+/*
+ * SQL wrapper around index_has_outdated_dependency.
+ */
+Datum
+pg_index_has_outdated_dependency(PG_FUNCTION_ARGS)
+{
+	Oid			indexOid = PG_GETARG_OID(0);
+	Relation	rel;
+	bool		res;
+
+	rel = try_index_open(indexOid, AccessShareLock);
+
+	if (rel == NULL)
+		PG_RETURN_NULL();
+
+	res = index_has_outdated_dependency(indexOid);
+
+	relation_close(rel, AccessShareLock);
+
+	PG_RETURN_BOOL(res);
+}
+
 /*
  * Check whether the given index has a dependency with an outdated
  * collation version.
diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..d252b1454f 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY pg_catalog.sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY pg_catalog.sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated dependencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..91fd602041 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/index "t2_id_idx" has no outdated dependency/],
+	'verbose reindexdb for outdated dependencies database wide reports all ignored indexes');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
diff --git a/src/include/catalog/pg_proc.dat b/src/include/catalog/pg_proc.dat
index 93393fcfd4..911c12ee2c 100644
--- a/src/include/catalog/pg_proc.dat
+++ b/src/include/catalog/pg_proc.dat
@@ -949,6 +949,10 @@
   proname => 'pg_indexam_has_property', provolatile => 's',
   prorettype => 'bool', proargtypes => 'oid text',
   prosrc => 'pg_indexam_has_property' },
+{ oid => '8102', descr => 'test property of an index',
+  proname => 'pg_index_has_outdated_dependency', provolatile => 's',
+  prorettype => 'bool', proargtypes => 'regclass',
+  prosrc => 'pg_index_has_outdated_dependency' },
 { oid => '637', descr => 'test property of an index',
   proname => 'pg_index_has_property', provolatile => 's', prorettype => 'bool',
   proargtypes => 'regclass text', prosrc => 'pg_index_has_property' },
-- 
2.30.1


--rpt4sswdwkhtp4fw--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v5 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index cf28176243..369d164e65 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(const ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -484,7 +521,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -509,7 +547,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -536,6 +574,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -641,7 +685,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -660,16 +704,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -687,7 +756,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -705,8 +785,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -754,7 +846,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -778,7 +870,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -797,6 +889,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--oao5se3im4osqowp--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v6 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..addea5c1ed 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--mzh3msf6semlblkg--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v7 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency using a new
pg_index_has_outdated_dependency(regclass) SQL function.

Catversion (should be) bumped.

Author: Julien Rouhaud <[email protected]>
Reviewed-by: Michael Paquier, Mark Dilger
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 doc/src/sgml/func.sgml             |  27 ++++--
 src/backend/catalog/index.c        |  22 +++++
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 src/include/catalog/pg_proc.dat    |   4 +
 5 files changed, 198 insertions(+), 32 deletions(-)

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 9492a3c6b9..0eda6678ac 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -26448,12 +26448,13 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
 
    <para>
     <xref linkend="functions-admin-index-table"/> shows the functions
-    available for index maintenance tasks.  (Note that these maintenance
-    tasks are normally done automatically by autovacuum; use of these
-    functions is only required in special cases.)
-    These functions cannot be executed during recovery.
-    Use of these functions is restricted to superusers and the owner
-    of the given index.
+    available for index maintenance tasks.  (Note that the maintenance
+    tasks performing actions on indexes are normally done automatically by
+    autovacuum; use of these functions is only required in special cases.)
+    The functions performing actions on indexes cannot be executed during
+    recovery.
+    Use of the functions performing actions on indexes is restricted to
+    superusers and the owner of the given index.
    </para>
 
    <table id="functions-admin-index-table">
@@ -26538,6 +26539,20 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
         option.
        </para></entry>
       </row>
+
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        <indexterm>
+         <primary>pg_index_has_outdated_dependency</primary>
+        </indexterm>
+        <function>pg_index_has_outdated_dependency</function> ( <parameter>index</parameter> <type>regclass</type> )
+        <returnvalue>boolean</returnvalue>
+       </para>
+       <para>
+        Check if the specified index has any outdated dependency.  For now only
+        dependency on collations are supported.
+       </para></entry>
+      </row>
      </tbody>
     </tgroup>
    </table>
diff --git a/src/backend/catalog/index.c b/src/backend/catalog/index.c
index 47e6a54149..6848e61df3 100644
--- a/src/backend/catalog/index.c
+++ b/src/backend/catalog/index.c
@@ -1390,6 +1390,28 @@ do_check_index_has_outdated_collation(const ObjectAddress *otherObject,
 	return false;
 }
 
+/*
+ * SQL wrapper around index_has_outdated_dependency.
+ */
+Datum
+pg_index_has_outdated_dependency(PG_FUNCTION_ARGS)
+{
+	Oid			indexOid = PG_GETARG_OID(0);
+	Relation	rel;
+	bool		res;
+
+	rel = try_index_open(indexOid, AccessShareLock);
+
+	if (rel == NULL)
+		PG_RETURN_NULL();
+
+	res = index_has_outdated_dependency(indexOid);
+
+	relation_close(rel, AccessShareLock);
+
+	PG_RETURN_BOOL(res);
+}
+
 /*
  * Check whether the given index has a dependency with an outdated
  * collation version.
diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..d252b1454f 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY pg_catalog.sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY pg_catalog.sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated dependencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..91fd602041 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/index "t2_id_idx" has no outdated dependency/],
+	'verbose reindexdb for outdated dependencies database wide reports all ignored indexes');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
diff --git a/src/include/catalog/pg_proc.dat b/src/include/catalog/pg_proc.dat
index 93393fcfd4..911c12ee2c 100644
--- a/src/include/catalog/pg_proc.dat
+++ b/src/include/catalog/pg_proc.dat
@@ -949,6 +949,10 @@
   proname => 'pg_indexam_has_property', provolatile => 's',
   prorettype => 'bool', proargtypes => 'oid text',
   prosrc => 'pg_indexam_has_property' },
+{ oid => '8102', descr => 'test property of an index',
+  proname => 'pg_index_has_outdated_dependency', provolatile => 's',
+  prorettype => 'bool', proargtypes => 'regclass',
+  prosrc => 'pg_index_has_outdated_dependency' },
 { oid => '637', descr => 'test property of an index',
   proname => 'pg_index_has_property', provolatile => 's', prorettype => 'bool',
   proargtypes => 'regclass text', prosrc => 'pg_index_has_property' },
-- 
2.30.1


--rpt4sswdwkhtp4fw--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v5 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index cf28176243..369d164e65 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(const ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -484,7 +521,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -509,7 +547,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -536,6 +574,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -641,7 +685,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -660,16 +704,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -687,7 +756,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -705,8 +785,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -754,7 +846,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -778,7 +870,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -797,6 +889,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--oao5se3im4osqowp--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v7 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency using a new
pg_index_has_outdated_dependency(regclass) SQL function.

Catversion (should be) bumped.

Author: Julien Rouhaud <[email protected]>
Reviewed-by: Michael Paquier, Mark Dilger
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 doc/src/sgml/func.sgml             |  27 ++++--
 src/backend/catalog/index.c        |  22 +++++
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 src/include/catalog/pg_proc.dat    |   4 +
 5 files changed, 198 insertions(+), 32 deletions(-)

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 9492a3c6b9..0eda6678ac 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -26448,12 +26448,13 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
 
    <para>
     <xref linkend="functions-admin-index-table"/> shows the functions
-    available for index maintenance tasks.  (Note that these maintenance
-    tasks are normally done automatically by autovacuum; use of these
-    functions is only required in special cases.)
-    These functions cannot be executed during recovery.
-    Use of these functions is restricted to superusers and the owner
-    of the given index.
+    available for index maintenance tasks.  (Note that the maintenance
+    tasks performing actions on indexes are normally done automatically by
+    autovacuum; use of these functions is only required in special cases.)
+    The functions performing actions on indexes cannot be executed during
+    recovery.
+    Use of the functions performing actions on indexes is restricted to
+    superusers and the owner of the given index.
    </para>
 
    <table id="functions-admin-index-table">
@@ -26538,6 +26539,20 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
         option.
        </para></entry>
       </row>
+
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        <indexterm>
+         <primary>pg_index_has_outdated_dependency</primary>
+        </indexterm>
+        <function>pg_index_has_outdated_dependency</function> ( <parameter>index</parameter> <type>regclass</type> )
+        <returnvalue>boolean</returnvalue>
+       </para>
+       <para>
+        Check if the specified index has any outdated dependency.  For now only
+        dependency on collations are supported.
+       </para></entry>
+      </row>
      </tbody>
     </tgroup>
    </table>
diff --git a/src/backend/catalog/index.c b/src/backend/catalog/index.c
index 47e6a54149..6848e61df3 100644
--- a/src/backend/catalog/index.c
+++ b/src/backend/catalog/index.c
@@ -1390,6 +1390,28 @@ do_check_index_has_outdated_collation(const ObjectAddress *otherObject,
 	return false;
 }
 
+/*
+ * SQL wrapper around index_has_outdated_dependency.
+ */
+Datum
+pg_index_has_outdated_dependency(PG_FUNCTION_ARGS)
+{
+	Oid			indexOid = PG_GETARG_OID(0);
+	Relation	rel;
+	bool		res;
+
+	rel = try_index_open(indexOid, AccessShareLock);
+
+	if (rel == NULL)
+		PG_RETURN_NULL();
+
+	res = index_has_outdated_dependency(indexOid);
+
+	relation_close(rel, AccessShareLock);
+
+	PG_RETURN_BOOL(res);
+}
+
 /*
  * Check whether the given index has a dependency with an outdated
  * collation version.
diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..d252b1454f 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY pg_catalog.sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY pg_catalog.sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated dependencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..91fd602041 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/index "t2_id_idx" has no outdated dependency/],
+	'verbose reindexdb for outdated dependencies database wide reports all ignored indexes');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
diff --git a/src/include/catalog/pg_proc.dat b/src/include/catalog/pg_proc.dat
index 93393fcfd4..911c12ee2c 100644
--- a/src/include/catalog/pg_proc.dat
+++ b/src/include/catalog/pg_proc.dat
@@ -949,6 +949,10 @@
   proname => 'pg_indexam_has_property', provolatile => 's',
   prorettype => 'bool', proargtypes => 'oid text',
   prosrc => 'pg_indexam_has_property' },
+{ oid => '8102', descr => 'test property of an index',
+  proname => 'pg_index_has_outdated_dependency', provolatile => 's',
+  prorettype => 'bool', proargtypes => 'regclass',
+  prosrc => 'pg_index_has_outdated_dependency' },
 { oid => '637', descr => 'test property of an index',
   proname => 'pg_index_has_property', provolatile => 's', prorettype => 'bool',
   proargtypes => 'regclass text', prosrc => 'pg_index_has_property' },
-- 
2.30.1


--rpt4sswdwkhtp4fw--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v7 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency using a new
pg_index_has_outdated_dependency(regclass) SQL function.

Catversion (should be) bumped.

Author: Julien Rouhaud <[email protected]>
Reviewed-by: Michael Paquier, Mark Dilger
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 doc/src/sgml/func.sgml             |  27 ++++--
 src/backend/catalog/index.c        |  22 +++++
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 src/include/catalog/pg_proc.dat    |   4 +
 5 files changed, 198 insertions(+), 32 deletions(-)

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 9492a3c6b9..0eda6678ac 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -26448,12 +26448,13 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
 
    <para>
     <xref linkend="functions-admin-index-table"/> shows the functions
-    available for index maintenance tasks.  (Note that these maintenance
-    tasks are normally done automatically by autovacuum; use of these
-    functions is only required in special cases.)
-    These functions cannot be executed during recovery.
-    Use of these functions is restricted to superusers and the owner
-    of the given index.
+    available for index maintenance tasks.  (Note that the maintenance
+    tasks performing actions on indexes are normally done automatically by
+    autovacuum; use of these functions is only required in special cases.)
+    The functions performing actions on indexes cannot be executed during
+    recovery.
+    Use of the functions performing actions on indexes is restricted to
+    superusers and the owner of the given index.
    </para>
 
    <table id="functions-admin-index-table">
@@ -26538,6 +26539,20 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
         option.
        </para></entry>
       </row>
+
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        <indexterm>
+         <primary>pg_index_has_outdated_dependency</primary>
+        </indexterm>
+        <function>pg_index_has_outdated_dependency</function> ( <parameter>index</parameter> <type>regclass</type> )
+        <returnvalue>boolean</returnvalue>
+       </para>
+       <para>
+        Check if the specified index has any outdated dependency.  For now only
+        dependency on collations are supported.
+       </para></entry>
+      </row>
      </tbody>
     </tgroup>
    </table>
diff --git a/src/backend/catalog/index.c b/src/backend/catalog/index.c
index 47e6a54149..6848e61df3 100644
--- a/src/backend/catalog/index.c
+++ b/src/backend/catalog/index.c
@@ -1390,6 +1390,28 @@ do_check_index_has_outdated_collation(const ObjectAddress *otherObject,
 	return false;
 }
 
+/*
+ * SQL wrapper around index_has_outdated_dependency.
+ */
+Datum
+pg_index_has_outdated_dependency(PG_FUNCTION_ARGS)
+{
+	Oid			indexOid = PG_GETARG_OID(0);
+	Relation	rel;
+	bool		res;
+
+	rel = try_index_open(indexOid, AccessShareLock);
+
+	if (rel == NULL)
+		PG_RETURN_NULL();
+
+	res = index_has_outdated_dependency(indexOid);
+
+	relation_close(rel, AccessShareLock);
+
+	PG_RETURN_BOOL(res);
+}
+
 /*
  * Check whether the given index has a dependency with an outdated
  * collation version.
diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..d252b1454f 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY pg_catalog.sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY pg_catalog.sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated dependencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..91fd602041 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/index "t2_id_idx" has no outdated dependency/],
+	'verbose reindexdb for outdated dependencies database wide reports all ignored indexes');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
diff --git a/src/include/catalog/pg_proc.dat b/src/include/catalog/pg_proc.dat
index 93393fcfd4..911c12ee2c 100644
--- a/src/include/catalog/pg_proc.dat
+++ b/src/include/catalog/pg_proc.dat
@@ -949,6 +949,10 @@
   proname => 'pg_indexam_has_property', provolatile => 's',
   prorettype => 'bool', proargtypes => 'oid text',
   prosrc => 'pg_indexam_has_property' },
+{ oid => '8102', descr => 'test property of an index',
+  proname => 'pg_index_has_outdated_dependency', provolatile => 's',
+  prorettype => 'bool', proargtypes => 'regclass',
+  prosrc => 'pg_index_has_outdated_dependency' },
 { oid => '637', descr => 'test property of an index',
   proname => 'pg_index_has_property', provolatile => 's', prorettype => 'bool',
   proargtypes => 'regclass text', prosrc => 'pg_index_has_property' },
-- 
2.30.1


--rpt4sswdwkhtp4fw--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v6 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..addea5c1ed 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--mzh3msf6semlblkg--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v7 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency using a new
pg_index_has_outdated_dependency(regclass) SQL function.

Catversion (should be) bumped.

Author: Julien Rouhaud <[email protected]>
Reviewed-by: Michael Paquier, Mark Dilger
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 doc/src/sgml/func.sgml             |  27 ++++--
 src/backend/catalog/index.c        |  22 +++++
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 src/include/catalog/pg_proc.dat    |   4 +
 5 files changed, 198 insertions(+), 32 deletions(-)

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 9492a3c6b9..0eda6678ac 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -26448,12 +26448,13 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
 
    <para>
     <xref linkend="functions-admin-index-table"/> shows the functions
-    available for index maintenance tasks.  (Note that these maintenance
-    tasks are normally done automatically by autovacuum; use of these
-    functions is only required in special cases.)
-    These functions cannot be executed during recovery.
-    Use of these functions is restricted to superusers and the owner
-    of the given index.
+    available for index maintenance tasks.  (Note that the maintenance
+    tasks performing actions on indexes are normally done automatically by
+    autovacuum; use of these functions is only required in special cases.)
+    The functions performing actions on indexes cannot be executed during
+    recovery.
+    Use of the functions performing actions on indexes is restricted to
+    superusers and the owner of the given index.
    </para>
 
    <table id="functions-admin-index-table">
@@ -26538,6 +26539,20 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
         option.
        </para></entry>
       </row>
+
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        <indexterm>
+         <primary>pg_index_has_outdated_dependency</primary>
+        </indexterm>
+        <function>pg_index_has_outdated_dependency</function> ( <parameter>index</parameter> <type>regclass</type> )
+        <returnvalue>boolean</returnvalue>
+       </para>
+       <para>
+        Check if the specified index has any outdated dependency.  For now only
+        dependency on collations are supported.
+       </para></entry>
+      </row>
      </tbody>
     </tgroup>
    </table>
diff --git a/src/backend/catalog/index.c b/src/backend/catalog/index.c
index 47e6a54149..6848e61df3 100644
--- a/src/backend/catalog/index.c
+++ b/src/backend/catalog/index.c
@@ -1390,6 +1390,28 @@ do_check_index_has_outdated_collation(const ObjectAddress *otherObject,
 	return false;
 }
 
+/*
+ * SQL wrapper around index_has_outdated_dependency.
+ */
+Datum
+pg_index_has_outdated_dependency(PG_FUNCTION_ARGS)
+{
+	Oid			indexOid = PG_GETARG_OID(0);
+	Relation	rel;
+	bool		res;
+
+	rel = try_index_open(indexOid, AccessShareLock);
+
+	if (rel == NULL)
+		PG_RETURN_NULL();
+
+	res = index_has_outdated_dependency(indexOid);
+
+	relation_close(rel, AccessShareLock);
+
+	PG_RETURN_BOOL(res);
+}
+
 /*
  * Check whether the given index has a dependency with an outdated
  * collation version.
diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..d252b1454f 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY pg_catalog.sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY pg_catalog.sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated dependencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..91fd602041 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/index "t2_id_idx" has no outdated dependency/],
+	'verbose reindexdb for outdated dependencies database wide reports all ignored indexes');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
diff --git a/src/include/catalog/pg_proc.dat b/src/include/catalog/pg_proc.dat
index 93393fcfd4..911c12ee2c 100644
--- a/src/include/catalog/pg_proc.dat
+++ b/src/include/catalog/pg_proc.dat
@@ -949,6 +949,10 @@
   proname => 'pg_indexam_has_property', provolatile => 's',
   prorettype => 'bool', proargtypes => 'oid text',
   prosrc => 'pg_indexam_has_property' },
+{ oid => '8102', descr => 'test property of an index',
+  proname => 'pg_index_has_outdated_dependency', provolatile => 's',
+  prorettype => 'bool', proargtypes => 'regclass',
+  prosrc => 'pg_index_has_outdated_dependency' },
 { oid => '637', descr => 'test property of an index',
   proname => 'pg_index_has_property', provolatile => 's', prorettype => 'bool',
   proargtypes => 'regclass text', prosrc => 'pg_index_has_property' },
-- 
2.30.1


--rpt4sswdwkhtp4fw--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v6 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..addea5c1ed 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--mzh3msf6semlblkg--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v6 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..addea5c1ed 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--mzh3msf6semlblkg--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v5 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index cf28176243..369d164e65 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(const ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -484,7 +521,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -509,7 +547,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -536,6 +574,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -641,7 +685,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -660,16 +704,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -687,7 +756,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -705,8 +785,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -754,7 +846,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -778,7 +870,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -797,6 +889,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--oao5se3im4osqowp--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v7 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency using a new
pg_index_has_outdated_dependency(regclass) SQL function.

Catversion (should be) bumped.

Author: Julien Rouhaud <[email protected]>
Reviewed-by: Michael Paquier, Mark Dilger
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 doc/src/sgml/func.sgml             |  27 ++++--
 src/backend/catalog/index.c        |  22 +++++
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 src/include/catalog/pg_proc.dat    |   4 +
 5 files changed, 198 insertions(+), 32 deletions(-)

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 9492a3c6b9..0eda6678ac 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -26448,12 +26448,13 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
 
    <para>
     <xref linkend="functions-admin-index-table"/> shows the functions
-    available for index maintenance tasks.  (Note that these maintenance
-    tasks are normally done automatically by autovacuum; use of these
-    functions is only required in special cases.)
-    These functions cannot be executed during recovery.
-    Use of these functions is restricted to superusers and the owner
-    of the given index.
+    available for index maintenance tasks.  (Note that the maintenance
+    tasks performing actions on indexes are normally done automatically by
+    autovacuum; use of these functions is only required in special cases.)
+    The functions performing actions on indexes cannot be executed during
+    recovery.
+    Use of the functions performing actions on indexes is restricted to
+    superusers and the owner of the given index.
    </para>
 
    <table id="functions-admin-index-table">
@@ -26538,6 +26539,20 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
         option.
        </para></entry>
       </row>
+
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        <indexterm>
+         <primary>pg_index_has_outdated_dependency</primary>
+        </indexterm>
+        <function>pg_index_has_outdated_dependency</function> ( <parameter>index</parameter> <type>regclass</type> )
+        <returnvalue>boolean</returnvalue>
+       </para>
+       <para>
+        Check if the specified index has any outdated dependency.  For now only
+        dependency on collations are supported.
+       </para></entry>
+      </row>
      </tbody>
     </tgroup>
    </table>
diff --git a/src/backend/catalog/index.c b/src/backend/catalog/index.c
index 47e6a54149..6848e61df3 100644
--- a/src/backend/catalog/index.c
+++ b/src/backend/catalog/index.c
@@ -1390,6 +1390,28 @@ do_check_index_has_outdated_collation(const ObjectAddress *otherObject,
 	return false;
 }
 
+/*
+ * SQL wrapper around index_has_outdated_dependency.
+ */
+Datum
+pg_index_has_outdated_dependency(PG_FUNCTION_ARGS)
+{
+	Oid			indexOid = PG_GETARG_OID(0);
+	Relation	rel;
+	bool		res;
+
+	rel = try_index_open(indexOid, AccessShareLock);
+
+	if (rel == NULL)
+		PG_RETURN_NULL();
+
+	res = index_has_outdated_dependency(indexOid);
+
+	relation_close(rel, AccessShareLock);
+
+	PG_RETURN_BOOL(res);
+}
+
 /*
  * Check whether the given index has a dependency with an outdated
  * collation version.
diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..d252b1454f 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY pg_catalog.sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY pg_catalog.sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated dependencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..91fd602041 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/index "t2_id_idx" has no outdated dependency/],
+	'verbose reindexdb for outdated dependencies database wide reports all ignored indexes');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
diff --git a/src/include/catalog/pg_proc.dat b/src/include/catalog/pg_proc.dat
index 93393fcfd4..911c12ee2c 100644
--- a/src/include/catalog/pg_proc.dat
+++ b/src/include/catalog/pg_proc.dat
@@ -949,6 +949,10 @@
   proname => 'pg_indexam_has_property', provolatile => 's',
   prorettype => 'bool', proargtypes => 'oid text',
   prosrc => 'pg_indexam_has_property' },
+{ oid => '8102', descr => 'test property of an index',
+  proname => 'pg_index_has_outdated_dependency', provolatile => 's',
+  prorettype => 'bool', proargtypes => 'regclass',
+  prosrc => 'pg_index_has_outdated_dependency' },
 { oid => '637', descr => 'test property of an index',
   proname => 'pg_index_has_property', provolatile => 's', prorettype => 'bool',
   proargtypes => 'regclass text', prosrc => 'pg_index_has_property' },
-- 
2.30.1


--rpt4sswdwkhtp4fw--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v7 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency using a new
pg_index_has_outdated_dependency(regclass) SQL function.

Catversion (should be) bumped.

Author: Julien Rouhaud <[email protected]>
Reviewed-by: Michael Paquier, Mark Dilger
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 doc/src/sgml/func.sgml             |  27 ++++--
 src/backend/catalog/index.c        |  22 +++++
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 src/include/catalog/pg_proc.dat    |   4 +
 5 files changed, 198 insertions(+), 32 deletions(-)

diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 9492a3c6b9..0eda6678ac 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -26448,12 +26448,13 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
 
    <para>
     <xref linkend="functions-admin-index-table"/> shows the functions
-    available for index maintenance tasks.  (Note that these maintenance
-    tasks are normally done automatically by autovacuum; use of these
-    functions is only required in special cases.)
-    These functions cannot be executed during recovery.
-    Use of these functions is restricted to superusers and the owner
-    of the given index.
+    available for index maintenance tasks.  (Note that the maintenance
+    tasks performing actions on indexes are normally done automatically by
+    autovacuum; use of these functions is only required in special cases.)
+    The functions performing actions on indexes cannot be executed during
+    recovery.
+    Use of the functions performing actions on indexes is restricted to
+    superusers and the owner of the given index.
    </para>
 
    <table id="functions-admin-index-table">
@@ -26538,6 +26539,20 @@ SELECT pg_size_pretty(sum(pg_relation_size(relid))) AS total_size
         option.
        </para></entry>
       </row>
+
+      <row>
+       <entry role="func_table_entry"><para role="func_signature">
+        <indexterm>
+         <primary>pg_index_has_outdated_dependency</primary>
+        </indexterm>
+        <function>pg_index_has_outdated_dependency</function> ( <parameter>index</parameter> <type>regclass</type> )
+        <returnvalue>boolean</returnvalue>
+       </para>
+       <para>
+        Check if the specified index has any outdated dependency.  For now only
+        dependency on collations are supported.
+       </para></entry>
+      </row>
      </tbody>
     </tgroup>
    </table>
diff --git a/src/backend/catalog/index.c b/src/backend/catalog/index.c
index 47e6a54149..6848e61df3 100644
--- a/src/backend/catalog/index.c
+++ b/src/backend/catalog/index.c
@@ -1390,6 +1390,28 @@ do_check_index_has_outdated_collation(const ObjectAddress *otherObject,
 	return false;
 }
 
+/*
+ * SQL wrapper around index_has_outdated_dependency.
+ */
+Datum
+pg_index_has_outdated_dependency(PG_FUNCTION_ARGS)
+{
+	Oid			indexOid = PG_GETARG_OID(0);
+	Relation	rel;
+	bool		res;
+
+	rel = try_index_open(indexOid, AccessShareLock);
+
+	if (rel == NULL)
+		PG_RETURN_NULL();
+
+	res = index_has_outdated_dependency(indexOid);
+
+	relation_close(rel, AccessShareLock);
+
+	PG_RETURN_BOOL(res);
+}
+
 /*
  * Check whether the given index has a dependency with an outdated
  * collation version.
diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..d252b1454f 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY pg_catalog.sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY pg_catalog.sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated dependencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..91fd602041 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/index "t2_id_idx" has no outdated dependency/],
+	'verbose reindexdb for outdated dependencies database wide reports all ignored indexes');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
diff --git a/src/include/catalog/pg_proc.dat b/src/include/catalog/pg_proc.dat
index 93393fcfd4..911c12ee2c 100644
--- a/src/include/catalog/pg_proc.dat
+++ b/src/include/catalog/pg_proc.dat
@@ -949,6 +949,10 @@
   proname => 'pg_indexam_has_property', provolatile => 's',
   prorettype => 'bool', proargtypes => 'oid text',
   prosrc => 'pg_indexam_has_property' },
+{ oid => '8102', descr => 'test property of an index',
+  proname => 'pg_index_has_outdated_dependency', provolatile => 's',
+  prorettype => 'bool', proargtypes => 'regclass',
+  prosrc => 'pg_index_has_outdated_dependency' },
 { oid => '637', descr => 'test property of an index',
   proname => 'pg_index_has_property', provolatile => 's', prorettype => 'bool',
   proargtypes => 'regclass text', prosrc => 'pg_index_has_property' },
-- 
2.30.1


--rpt4sswdwkhtp4fw--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v5 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index cf28176243..369d164e65 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(const ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -484,7 +521,8 @@ reindex_one_database(const ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -509,7 +547,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -536,6 +574,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -641,7 +685,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -660,16 +704,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -687,7 +756,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -705,8 +785,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -754,7 +846,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -778,7 +870,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -797,6 +889,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--oao5se3im4osqowp--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* [PATCH v6 2/2] Add a --outdated option to reindexdb
@ 2021-02-24 17:33 Julien Rouhaud <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Julien Rouhaud @ 2021-02-24 17:33 UTC (permalink / raw)

This uses the new OUTDATED option for REINDEX.  If user asks for multiple job,
the list of tables to process will be sorted by the total size of underlying
indexes that have outdated dependency.

Author: Julien Rouhaud <[email protected]>
Reviewed-by:
Discussion: https://postgr.es/m/20201203093143.GA64934%40nol
---
 src/bin/scripts/reindexdb.c        | 143 ++++++++++++++++++++++++-----
 src/bin/scripts/t/090_reindexdb.pl |  34 ++++++-
 2 files changed, 151 insertions(+), 26 deletions(-)

diff --git a/src/bin/scripts/reindexdb.c b/src/bin/scripts/reindexdb.c
index fc0681538a..addea5c1ed 100644
--- a/src/bin/scripts/reindexdb.c
+++ b/src/bin/scripts/reindexdb.c
@@ -35,20 +35,23 @@ typedef enum ReindexType
 static SimpleStringList *get_parallel_object_list(PGconn *conn,
 												  ReindexType type,
 												  SimpleStringList *user_list,
+												  bool outdated,
 												  bool echo);
 static void reindex_one_database(ConnParams *cparams, ReindexType type,
 								 SimpleStringList *user_list,
 								 const char *progname,
 								 bool echo, bool verbose, bool concurrently,
-								 int concurrentCons, const char *tablespace);
+								 int concurrentCons, const char *tablespace,
+								 bool outdated);
 static void reindex_all_databases(ConnParams *cparams,
 								  const char *progname, bool echo,
 								  bool quiet, bool verbose, bool concurrently,
-								  int concurrentCons, const char *tablespace);
+								  int concurrentCons, const char *tablespace,
+								  bool outdated);
 static void run_reindex_command(PGconn *conn, ReindexType type,
 								const char *name, bool echo, bool verbose,
 								bool concurrently, bool async,
-								const char *tablespace);
+								const char *tablespace, bool outdated);
 
 static void help(const char *progname);
 
@@ -74,6 +77,7 @@ main(int argc, char *argv[])
 		{"concurrently", no_argument, NULL, 1},
 		{"maintenance-db", required_argument, NULL, 2},
 		{"tablespace", required_argument, NULL, 3},
+		{"outdated", no_argument, NULL, 4},
 		{NULL, 0, NULL, 0}
 	};
 
@@ -95,6 +99,7 @@ main(int argc, char *argv[])
 	bool		quiet = false;
 	bool		verbose = false;
 	bool		concurrently = false;
+	bool		outdated = false;
 	SimpleStringList indexes = {NULL, NULL};
 	SimpleStringList tables = {NULL, NULL};
 	SimpleStringList schemas = {NULL, NULL};
@@ -170,6 +175,9 @@ main(int argc, char *argv[])
 			case 3:
 				tablespace = pg_strdup(optarg);
 				break;
+			case 4:
+				outdated = true;
+				break;
 			default:
 				fprintf(stderr, _("Try \"%s --help\" for more information.\n"), progname);
 				exit(1);
@@ -234,7 +242,8 @@ main(int argc, char *argv[])
 		cparams.dbname = maintenance_db;
 
 		reindex_all_databases(&cparams, progname, echo, quiet, verbose,
-							  concurrently, concurrentCons, tablespace);
+							  concurrently, concurrentCons, tablespace,
+							  outdated);
 	}
 	else if (syscatalog)
 	{
@@ -253,12 +262,17 @@ main(int argc, char *argv[])
 			pg_log_error("cannot reindex specific index(es) and system catalogs at the same time");
 			exit(1);
 		}
-
 		if (concurrentCons > 1)
 		{
 			pg_log_error("cannot use multiple jobs to reindex system catalogs");
 			exit(1);
 		}
+		if (outdated)
+		{
+			pg_log_error("cannot filter indexes having outdated dependencies "
+						 "and reindex system catalogs at the same time");
+			exit(1);
+		}
 
 		if (dbname == NULL)
 		{
@@ -274,7 +288,7 @@ main(int argc, char *argv[])
 
 		reindex_one_database(&cparams, REINDEX_SYSTEM, NULL,
 							 progname, echo, verbose,
-							 concurrently, 1, tablespace);
+							 concurrently, 1, tablespace, outdated);
 	}
 	else
 	{
@@ -304,17 +318,20 @@ main(int argc, char *argv[])
 		if (schemas.head != NULL)
 			reindex_one_database(&cparams, REINDEX_SCHEMA, &schemas,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		if (indexes.head != NULL)
 			reindex_one_database(&cparams, REINDEX_INDEX, &indexes,
 								 progname, echo, verbose,
-								 concurrently, 1, tablespace);
+								 concurrently, 1, tablespace,
+								 outdated);
 
 		if (tables.head != NULL)
 			reindex_one_database(&cparams, REINDEX_TABLE, &tables,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 
 		/*
 		 * reindex database only if neither index nor table nor schema is
@@ -323,7 +340,8 @@ main(int argc, char *argv[])
 		if (indexes.head == NULL && tables.head == NULL && schemas.head == NULL)
 			reindex_one_database(&cparams, REINDEX_DATABASE, NULL,
 								 progname, echo, verbose,
-								 concurrently, concurrentCons, tablespace);
+								 concurrently, concurrentCons, tablespace,
+								 outdated);
 	}
 
 	exit(0);
@@ -334,7 +352,7 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 					 SimpleStringList *user_list,
 					 const char *progname, bool echo,
 					 bool verbose, bool concurrently, int concurrentCons,
-					 const char *tablespace)
+					 const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	SimpleStringListCell *cell;
@@ -363,6 +381,14 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 		exit(1);
 	}
 
+	if (outdated && PQserverVersion(conn) < 140000)
+	{
+		PQfinish(conn);
+		pg_log_error("cannot use the \"%s\" option on server versions older than PostgreSQL %s",
+					 "outdated", "14");
+		exit(1);
+	}
+
 	if (!parallel)
 	{
 		switch (process_type)
@@ -399,14 +425,24 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 				 */
 				if (concurrently)
 					pg_log_warning("cannot reindex system catalogs concurrently, skipping all");
+				else if (outdated)
+				{
+					/*
+					 * The only supported kind of object that can be outdated
+					 * is collation.  No system catalog has any index that can
+					 * depend on an outdated collation, so skip system
+					 * catalogs.
+					 */
+				}
 				else
 					run_reindex_command(conn, REINDEX_SYSTEM, PQdb(conn), echo,
 										verbose, concurrently, false,
-										tablespace);
+										tablespace, outdated);
 
 				/* Build a list of relations from the database */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -419,7 +455,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 				/* Build a list of relations from all the schemas */
 				process_list = get_parallel_object_list(conn, process_type,
-														user_list, echo);
+														user_list, outdated,
+														echo);
 				process_type = REINDEX_TABLE;
 
 				/* Bail out if nothing to process */
@@ -485,7 +522,8 @@ reindex_one_database(ConnParams *cparams, ReindexType type,
 
 		ParallelSlotSetHandler(free_slot, TableCommandResultHandler, NULL);
 		run_reindex_command(free_slot->connection, process_type, objname,
-							echo, verbose, concurrently, true, tablespace);
+							echo, verbose, concurrently, true, tablespace,
+							outdated);
 
 		cell = cell->next;
 	} while (cell != NULL);
@@ -510,7 +548,7 @@ finish:
 static void
 run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 					bool echo, bool verbose, bool concurrently, bool async,
-					const char *tablespace)
+					const char *tablespace, bool outdated)
 {
 	const char *paren = "(";
 	const char *comma = ", ";
@@ -537,6 +575,12 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
 		sep = comma;
 	}
 
+	if (outdated)
+	{
+		appendPQExpBuffer(&sql, "%sOUTDATED", sep);
+		sep = comma;
+	}
+
 	if (sep != paren)
 		appendPQExpBufferStr(&sql, ") ");
 
@@ -642,7 +686,7 @@ run_reindex_command(PGconn *conn, ReindexType type, const char *name,
  */
 static SimpleStringList *
 get_parallel_object_list(PGconn *conn, ReindexType type,
-						 SimpleStringList *user_list, bool echo)
+						 SimpleStringList *user_list, bool outdated, bool echo)
 {
 	PQExpBufferData catalog_query;
 	PQExpBufferData buf;
@@ -661,16 +705,41 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 	{
 		case REINDEX_DATABASE:
 			Assert(user_list == NULL);
+
 			appendPQExpBufferStr(&catalog_query,
 								 "SELECT c.relname, ns.nspname\n"
 								 " FROM pg_catalog.pg_class c\n"
 								 " JOIN pg_catalog.pg_namespace ns"
-								 " ON c.relnamespace = ns.oid\n"
+								 " ON c.relnamespace = ns.oid\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " JOIN pg_catalog.pg_index i"
+									 " ON c.oid = i.indrelid\n"
+									 " JOIN pg_catalog.pg_class ci"
+									 " ON i.indexrelid = ci.oid\n");
+			}
+
+			appendPQExpBufferStr(&catalog_query,
 								 " WHERE ns.nspname != 'pg_catalog'\n"
 								 "   AND c.relkind IN ("
 								 CppAsString2(RELKIND_RELATION) ", "
-								 CppAsString2(RELKIND_MATVIEW) ")\n"
-								 " ORDER BY c.relpages DESC;");
+								 CppAsString2(RELKIND_MATVIEW) ")\n");
+
+			if (outdated)
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " GROUP BY c.relname, ns.nspname\n"
+									 " ORDER BY sum(ci.relpages)"
+									 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+			}
+			else
+			{
+				appendPQExpBufferStr(&catalog_query,
+									 " ORDER BY c.relpages DESC;");
+			}
+
 			break;
 
 		case REINDEX_SCHEMA:
@@ -688,7 +757,18 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 									 "SELECT c.relname, ns.nspname\n"
 									 " FROM pg_catalog.pg_class c\n"
 									 " JOIN pg_catalog.pg_namespace ns"
-									 " ON c.relnamespace = ns.oid\n"
+									 " ON c.relnamespace = ns.oid\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " JOIN pg_catalog.pg_index i"
+										 " ON c.oid = i.indrelid\n"
+										 " JOIN pg_catalog.pg_class ci"
+										 " ON i.indexrelid = ci.oid\n");
+				}
+
+				appendPQExpBufferStr(&catalog_query,
 									 " WHERE c.relkind IN ("
 									 CppAsString2(RELKIND_RELATION) ", "
 									 CppAsString2(RELKIND_MATVIEW) ")\n"
@@ -706,8 +786,20 @@ get_parallel_object_list(PGconn *conn, ReindexType type,
 					appendStringLiteralConn(&catalog_query, nspname, conn);
 				}
 
-				appendPQExpBufferStr(&catalog_query, ")\n"
-									 " ORDER BY c.relpages DESC;");
+				appendPQExpBufferStr(&catalog_query, ")\n");
+
+				if (outdated)
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " GROUP BY c.relname, ns.nspname\n"
+										 " ORDER BY sum(ci.relpages)"
+										 " FILTER (WHERE pg_catalog.pg_index_has_outdated_dependency(ci.oid)) DESC;");
+				}
+				else
+				{
+					appendPQExpBufferStr(&catalog_query,
+										 " ORDER BY c.relpages DESC;");
+				}
 			}
 			break;
 
@@ -755,7 +847,7 @@ static void
 reindex_all_databases(ConnParams *cparams,
 					  const char *progname, bool echo, bool quiet, bool verbose,
 					  bool concurrently, int concurrentCons,
-					  const char *tablespace)
+					  const char *tablespace, bool outdated)
 {
 	PGconn	   *conn;
 	PGresult   *result;
@@ -779,7 +871,7 @@ reindex_all_databases(ConnParams *cparams,
 
 		reindex_one_database(cparams, REINDEX_DATABASE, NULL,
 							 progname, echo, verbose, concurrently,
-							 concurrentCons, tablespace);
+							 concurrentCons, tablespace, outdated);
 	}
 
 	PQclear(result);
@@ -798,6 +890,7 @@ help(const char *progname)
 	printf(_("  -e, --echo                   show the commands being sent to the server\n"));
 	printf(_("  -i, --index=INDEX            recreate specific index(es) only\n"));
 	printf(_("  -j, --jobs=NUM               use this many concurrent connections to reindex\n"));
+	printf(_("      --outdated               only process indexes having outdated depencies\n"));
 	printf(_("  -q, --quiet                  don't write any messages\n"));
 	printf(_("  -s, --system                 reindex system catalogs\n"));
 	printf(_("  -S, --schema=SCHEMA          reindex specific schema(s) only\n"));
diff --git a/src/bin/scripts/t/090_reindexdb.pl b/src/bin/scripts/t/090_reindexdb.pl
index 159b637230..b60cac6081 100644
--- a/src/bin/scripts/t/090_reindexdb.pl
+++ b/src/bin/scripts/t/090_reindexdb.pl
@@ -3,7 +3,7 @@ use warnings;
 
 use PostgresNode;
 use TestLib;
-use Test::More tests => 58;
+use Test::More tests => 70;
 
 program_help_ok('reindexdb');
 program_version_ok('reindexdb');
@@ -174,6 +174,9 @@ $node->command_fails(
 $node->command_fails(
 	[ 'reindexdb', '-j', '2', '-i', 'i1', 'postgres' ],
 	'parallel reindexdb cannot process indexes');
+$node->command_fails(
+	[ 'reindexdb', '-s', '--outdated' ],
+	'cannot reindex system catalog and filter indexes having outdated dependencies');
 $node->issues_sql_like(
 	[ 'reindexdb', '-j', '2', 'postgres' ],
 	qr/statement:\ REINDEX SYSTEM postgres;
@@ -196,3 +199,32 @@ $node->command_checks_all(
 		qr/^reindexdb: warning: cannot reindex system catalogs concurrently, skipping all/s
 	],
 	'parallel reindexdb for system with --concurrently skips catalogs');
+
+# Temporarily downgrade client-min-message to get the no-op report
+$ENV{PGOPTIONS} = '--client-min-messages=NOTICE';
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-t', 's1.t1', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'verbose reindexdb for outdated dependencies on a specific table reports no-op tables');
+
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/^$/],
+	'verbose reindexdb for outdated dependencies database wide silently ignore all tables');
+$node->command_checks_all(
+	[ 'reindexdb',  '--outdated', '-v', '-j', '2', '-d', 'postgres' ],
+	0,
+	[qr/^$/],
+	[qr/table "t1" has no indexes to reindex/],
+	'parallel verbose reindexdb for outdated dependencies database wide reports no-op tables');
+
+# Switch back to WARNING client-min-message
+$ENV{PGOPTIONS} = '--client-min-messages=WARNING';
+$node->issues_sql_like(
+	[ 'reindexdb', '--outdated', '-t', 's1.t1', 'postgres' ],
+	qr/.*statement: REINDEX \(OUTDATED\) TABLE s1\.t1;/,
+	'reindexdb for outdated dependencies specify the OUTDATED keyword');
-- 
2.30.1


--mzh3msf6semlblkg--





^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* Re: Windows pg_basebackup unable to create >2GB pg_wal.tar tarballs ("could not close file: Invalid argument" when creating pg_wal.tar of size ~ 2^31 bytes)
@ 2024-12-06 06:01 Thomas Munro <[email protected]>
  2024-12-07 07:42 ` Re: Windows pg_basebackup unable to create >2GB pg_wal.tar tarballs ("could not close file: Invalid argument" when creating pg_wal.tar of size ~ 2^31 bytes) Davinder Singh <[email protected]>
  0 siblings, 1 reply; 75+ messages in thread

From: Thomas Munro @ 2024-12-06 06:01 UTC (permalink / raw)
  To: Robert Haas <[email protected]>; +Cc: Jakub Wartak <[email protected]>; pgsql-hackers; Davinder Singh <[email protected]>; Dilip Kumar <[email protected]>

Some better new:

1.  _chsize_s does in fact seem to work in an msvcrt.dll build.
Thanks to Andres for testing that for me on Windows with a standalone
2 line program on ucrt and msvcrt runtimes.

2.  MinGW always has _chsize_s, but it does more or less what I had
been proposing already if it can't find the function by the Windows
thing like dlsym, so there's no point in writing another thing like that.
The test was with a 3G file though so it was the real function.

https://github.com/mingw-w64/mingw-w64/blob/master/mingw-w64-crt/secapi/_chsize_s.c

3.  After a long time trying various ways to make it tidy and getting
incomprehensible results I eventually realised that precompiled
headers were causing strange results on MinGW/Meson builds (on CI),
due to fighting over macros with this guy:

https://github.com/mingw-w64/mingw-w64/blob/master/mingw-w64-headers/crt/unistd.h

I found it easiest to completely stop it from getting in our way
completely, with the attached.  Thoughts, anyone?

Davinder, Jakub, are you in a position repro the issue and make
versions of the patch for the 13, 15 and master branches on top of
that?


Attachments:

  [application/x-patch] v3-0001-Redirect-to-64-bit-ftruncate-and-lseek-on-Windows.patch (2.1K, ../../CA+hUKGK0+5PAfW9q_4z9XEiVfjgcCi2JgcNBmiRxTPCpxdFMdQ@mail.gmail.com/2-v3-0001-Redirect-to-64-bit-ftruncate-and-lseek-on-Windows.patch)
  download | inline diff:
From 4dbd9f4b794dbeac2c01b978d712a43e33bbfb70 Mon Sep 17 00:00:00 2001
From: Thomas Munro <[email protected]>
Date: Fri, 6 Dec 2024 14:32:06 +1300
Subject: [PATCH v3] Redirect to 64-bit ftruncate and lseek on Windows.

In preparation for a later patch, change our ftruncate() and lseek()
macros to use the 64-bit versions.

Discussion: https://postgr.es/m/CAKZiRmyM4YnokK6Oenw5JKwAQ3rhP0YTz2T-tiw5dAQjGRXE3Q%40mail.gmail.com
---
 src/include/port.h            | 27 +++++++++++++++++++++++++++
 src/include/port/win32_port.h |  2 --
 2 files changed, 27 insertions(+), 2 deletions(-)

diff --git a/src/include/port.h b/src/include/port.h
index ba9ab0d34f4..5535811005d 100644
--- a/src/include/port.h
+++ b/src/include/port.h
@@ -306,6 +306,33 @@ extern bool rmtree(const char *path, bool rmtopdir);
 
 #if defined(WIN32) && !defined(__CYGWIN__)
 
+/*
+ * We want the 64-bit version of lseek().
+ *
+ * For Visual Studio, this must be after <io.h> to avoid messing up its
+ * lseek() and _lseeki64() function declarations.
+ *
+ * For MinGW there is already a macro, so we have to undefine it (depending on
+ * _FILE_OFFSET_BITS, it may point at its own lseek64, but we don't want to
+ * count on that being set).
+ */
+#undef lseek
+#define lseek _lseeki64
+
+/*
+ * We want the 64-bit version of chsize().
+ *
+ * Prevent MinGW from declaring functions, and undefine its macro before we
+ * define our own.
+ */
+#ifndef _MSC_VER
+#define FTRUNCATE_DEFINED
+#include <unistd.h>
+#undef ftruncate
+#endif
+
+#define ftruncate(a,b) ((errno = _chsize_s((a), (b))) == 0 ? 0 : -1)
+
 /*
  * open() and fopen() replacements to allow deletion of open files and
  * passing of other special options.
diff --git a/src/include/port/win32_port.h b/src/include/port/win32_port.h
index 7789e0431aa..c03747393e4 100644
--- a/src/include/port/win32_port.h
+++ b/src/include/port/win32_port.h
@@ -79,8 +79,6 @@
 /* Must be here to avoid conflicting with prototype in windows.h */
 #define mkdir(a,b)	mkdir(a)
 
-#define ftruncate(a,b)	chsize(a,b)
-
 /* Windows doesn't have fsync() as such, use _commit() */
 #define fsync(fd) _commit(fd)
 
-- 
2.47.0



^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* Re: Windows pg_basebackup unable to create >2GB pg_wal.tar tarballs ("could not close file: Invalid argument" when creating pg_wal.tar of size ~ 2^31 bytes)
  2024-12-06 06:01 Re: Windows pg_basebackup unable to create >2GB pg_wal.tar tarballs ("could not close file: Invalid argument" when creating pg_wal.tar of size ~ 2^31 bytes) Thomas Munro <[email protected]>
@ 2024-12-07 07:42 ` Davinder Singh <[email protected]>
  2025-01-06 16:22   ` Re: Windows pg_basebackup unable to create >2GB pg_wal.tar tarballs ("could not close file: Invalid argument" when creating pg_wal.tar of size ~ 2^31 bytes) Andrew Dunstan <[email protected]>
  0 siblings, 1 reply; 75+ messages in thread

From: Davinder Singh @ 2024-12-07 07:42 UTC (permalink / raw)
  To: Thomas Munro <[email protected]>; +Cc: Robert Haas <[email protected]>; Jakub Wartak <[email protected]>; pgsql-hackers; Dilip Kumar <[email protected]>

On Fri, Dec 6, 2024 at 11:31 AM Thomas Munro <[email protected]> wrote:

> Some better new:
>
> 1.  _chsize_s does in fact seem to work in an msvcrt.dll build.
> Thanks to Andres for testing that for me on Windows with a standalone
> 2 line program on ucrt and msvcrt runtimes.
>
> 2.  MinGW always has _chsize_s, but it does more or less what I had
> been proposing already if it can't find the function by the Windows
> thing like dlsym, so there's no point in writing another thing like that.
> The test was with a 3G file though so it was the real function.
>
>
> https://github.com/mingw-w64/mingw-w64/blob/master/mingw-w64-crt/secapi/_chsize_s.c
>
> 3.  After a long time trying various ways to make it tidy and getting
> incomprehensible results I eventually realised that precompiled
> headers were causing strange results on MinGW/Meson builds (on CI),
> due to fighting over macros with this guy:
>
>
> https://github.com/mingw-w64/mingw-w64/blob/master/mingw-w64-headers/crt/unistd.h
>
> I found it easiest to completely stop it from getting in our way
> completely, with the attached.  Thoughts, anyone?
>
> Davinder, Jakub, are you in a position repro the issue and make
> versions of the patch for the 13, 15 and master branches on top of
> that?
>

Yes, Thomas, the issue is reproducible.
After applying your patch and replacing off_t with pgoff_t, the problem has
been resolved. I have attached the patches for the 13, 15, and master.
These patches include only the changes related to pgoff_t, intended for use
with the v3-0001 patch--


Regards,
Davinder.


Attachments:

  [application/x-patch] v3_0002_PG13_Bugfix_Windows_pg_basebackup.patch (1.6K, ../../CAEbAQ-VgeghebE+xgJFOF9dppYX0OS-7N_vq=u7fuhz5oBWyyQ@mail.gmail.com/3-v3_0002_PG13_Bugfix_Windows_pg_basebackup.patch)
  download | inline diff:
diff --git a/src/bin/pg_basebackup/walmethods.c b/src/bin/pg_basebackup/walmethods.c
index ee5193bcb4..19dc681629 100644
--- a/src/bin/pg_basebackup/walmethods.c
+++ b/src/bin/pg_basebackup/walmethods.c
@@ -55,7 +55,7 @@ static DirectoryMethodData *dir_data = NULL;
 typedef struct DirectoryMethodFile
 {
 	int			fd;
-	off_t		currpos;
+	pgoff_t		currpos;
 	char	   *pathname;
 	char	   *fullpath;
 	char	   *temp_suffix;
@@ -241,7 +241,7 @@ dir_write(Walfile f, const void *buf, size_t count)
 	return r;
 }
 
-static off_t
+static pgoff_t
 dir_get_current_pos(Walfile f)
 {
 	Assert(f != NULL);
@@ -468,8 +468,8 @@ FreeWalDirectoryMethod(void)
 
 typedef struct TarMethodFile
 {
-	off_t		ofs_start;		/* Where does the *header* for this file start */
-	off_t		currpos;
+	pgoff_t		ofs_start;		/* Where does the *header* for this file start */
+	pgoff_t		currpos;
 	char		header[512];
 	char	   *pathname;
 	size_t		pad_to_size;
@@ -799,7 +799,7 @@ tar_compression(void)
 	return tar_data->compression;
 }
 
-static off_t
+static pgoff_t
 tar_get_current_pos(Walfile f)
 {
 	Assert(f != NULL);
diff --git a/src/bin/pg_basebackup/walmethods.h b/src/bin/pg_basebackup/walmethods.h
index 2ffad2093e..955ad13ba1 100644
--- a/src/bin/pg_basebackup/walmethods.h
+++ b/src/bin/pg_basebackup/walmethods.h
@@ -68,7 +68,7 @@ struct WalWriteMethod
 	ssize_t		(*write) (Walfile f, const void *buf, size_t count);
 
 	/* Return the current position in a file or -1 on error */
-	off_t		(*get_current_pos) (Walfile f);
+	pgoff_t		(*get_current_pos) (Walfile f);
 
 	/*
 	 * fsync the contents of the specified file. Returns 0 on success.


  [application/x-patch] v3_0002_master_Bugfix_Windows_pg_basebackup.patch (1.9K, ../../CAEbAQ-VgeghebE+xgJFOF9dppYX0OS-7N_vq=u7fuhz5oBWyyQ@mail.gmail.com/4-v3_0002_master_Bugfix_Windows_pg_basebackup.patch)
  download | inline diff:
diff --git a/src/bin/pg_basebackup/walmethods.h b/src/bin/pg_basebackup/walmethods.h
index c9042600f9..488dd8f92d 100644
--- a/src/bin/pg_basebackup/walmethods.h
+++ b/src/bin/pg_basebackup/walmethods.h
@@ -17,7 +17,7 @@ typedef struct WalWriteMethod WalWriteMethod;
 typedef struct
 {
 	WalWriteMethod *wwmethod;
-	off_t		currpos;
+	pgoff_t		currpos;
 	char	   *pathname;
 
 	/*
diff --git a/src/include/port.h b/src/include/port.h
index ba9ab0d34f..5535811005 100644
--- a/src/include/port.h
+++ b/src/include/port.h
@@ -306,6 +306,33 @@ extern bool rmtree(const char *path, bool rmtopdir);
 
 #if defined(WIN32) && !defined(__CYGWIN__)
 
+/*
+ * We want the 64-bit version of lseek().
+ *
+ * For Visual Studio, this must be after <io.h> to avoid messing up its
+ * lseek() and _lseeki64() function declarations.
+ *
+ * For MinGW there is already a macro, so we have to undefine it (depending on
+ * _FILE_OFFSET_BITS, it may point at its own lseek64, but we don't want to
+ * count on that being set).
+ */
+#undef lseek
+#define lseek _lseeki64
+
+/*
+ * We want the 64-bit version of chsize().
+ *
+ * Prevent MinGW from declaring functions, and undefine its macro before we
+ * define our own.
+ */
+#ifndef _MSC_VER
+#define FTRUNCATE_DEFINED
+#include <unistd.h>
+#undef ftruncate
+#endif
+
+#define ftruncate(a,b) ((errno = _chsize_s((a), (b))) == 0 ? 0 : -1)
+
 /*
  * open() and fopen() replacements to allow deletion of open files and
  * passing of other special options.
diff --git a/src/include/port/win32_port.h b/src/include/port/win32_port.h
index 7789e0431a..c03747393e 100644
--- a/src/include/port/win32_port.h
+++ b/src/include/port/win32_port.h
@@ -79,8 +79,6 @@
 /* Must be here to avoid conflicting with prototype in windows.h */
 #define mkdir(a,b)	mkdir(a)
 
-#define ftruncate(a,b)	chsize(a,b)
-
 /* Windows doesn't have fsync() as such, use _commit() */
 #define fsync(fd) _commit(fd)
 


  [application/x-patch] v3_0002_PG15_Bugfix_Windows_pg_basebackup.patch (1.6K, ../../CAEbAQ-VgeghebE+xgJFOF9dppYX0OS-7N_vq=u7fuhz5oBWyyQ@mail.gmail.com/5-v3_0002_PG15_Bugfix_Windows_pg_basebackup.patch)
  download | inline diff:
diff --git a/src/bin/pg_basebackup/walmethods.c b/src/bin/pg_basebackup/walmethods.c
index 602727f4d4..6204ba8aba 100644
--- a/src/bin/pg_basebackup/walmethods.c
+++ b/src/bin/pg_basebackup/walmethods.c
@@ -63,7 +63,7 @@ static DirectoryMethodData *dir_data = NULL;
 typedef struct DirectoryMethodFile
 {
 	int			fd;
-	off_t		currpos;
+	pgoff_t		currpos;
 	char	   *pathname;
 	char	   *fullpath;
 	char	   *temp_suffix;
@@ -370,7 +370,7 @@ dir_write(Walfile f, const void *buf, size_t count)
 	return r;
 }
 
-static off_t
+static pgoff_t
 dir_get_current_pos(Walfile f)
 {
 	Assert(f != NULL);
@@ -666,8 +666,8 @@ FreeWalDirectoryMethod(void)
 
 typedef struct TarMethodFile
 {
-	off_t		ofs_start;		/* Where does the *header* for this file start */
-	off_t		currpos;
+	pgoff_t		ofs_start;		/* Where does the *header* for this file start */
+	pgoff_t		currpos;
 	char		header[TAR_BLOCK_SIZE];
 	char	   *pathname;
 	size_t		pad_to_size;
@@ -1005,7 +1005,7 @@ tar_compression_algorithm(void)
 	return tar_data->compression_algorithm;
 }
 
-static off_t
+static pgoff_t
 tar_get_current_pos(Walfile f)
 {
 	Assert(f != NULL);
diff --git a/src/bin/pg_basebackup/walmethods.h b/src/bin/pg_basebackup/walmethods.h
index 76530dc941..240e3f22fc 100644
--- a/src/bin/pg_basebackup/walmethods.h
+++ b/src/bin/pg_basebackup/walmethods.h
@@ -69,7 +69,7 @@ struct WalWriteMethod
 	ssize_t		(*write) (Walfile f, const void *buf, size_t count);
 
 	/* Return the current position in a file or -1 on error */
-	off_t		(*get_current_pos) (Walfile f);
+	pgoff_t		(*get_current_pos) (Walfile f);
 
 	/*
 	 * fsync the contents of the specified file. Returns 0 on success.


^ permalink  raw  reply  [nested|flat] 75+ messages in thread

* Re: Windows pg_basebackup unable to create >2GB pg_wal.tar tarballs ("could not close file: Invalid argument" when creating pg_wal.tar of size ~ 2^31 bytes)
  2024-12-06 06:01 Re: Windows pg_basebackup unable to create >2GB pg_wal.tar tarballs ("could not close file: Invalid argument" when creating pg_wal.tar of size ~ 2^31 bytes) Thomas Munro <[email protected]>
  2024-12-07 07:42 ` Re: Windows pg_basebackup unable to create >2GB pg_wal.tar tarballs ("could not close file: Invalid argument" when creating pg_wal.tar of size ~ 2^31 bytes) Davinder Singh <[email protected]>
@ 2025-01-06 16:22   ` Andrew Dunstan <[email protected]>
  0 siblings, 0 replies; 75+ messages in thread

From: Andrew Dunstan @ 2025-01-06 16:22 UTC (permalink / raw)
  To: Thomas Munro <[email protected]>; +Cc: Robert Haas <[email protected]>; Jakub Wartak <[email protected]>; pgsql-hackers; Dilip Kumar <[email protected]>


On 2024-12-07 Sa 2:42 AM, Davinder Singh wrote:
>
> On Fri, Dec 6, 2024 at 11:31 AM Thomas Munro <[email protected]> 
> wrote:
>
>     Some better new:
>
>     1.  _chsize_s does in fact seem to work in an msvcrt.dll build.
>     Thanks to Andres for testing that for me on Windows with a standalone
>     2 line program on ucrt and msvcrt runtimes.
>
>     2.  MinGW always has _chsize_s, but it does more or less what I had
>     been proposing already if it can't find the function by the Windows
>     thing like dlsym, so there's no point in writing another thing
>     like that.
>     The test was with a 3G file though so it was the real function.
>
>     https://github.com/mingw-w64/mingw-w64/blob/master/mingw-w64-crt/secapi/_chsize_s.c
>
>     3.  After a long time trying various ways to make it tidy and getting
>     incomprehensible results I eventually realised that precompiled
>     headers were causing strange results on MinGW/Meson builds (on CI),
>     due to fighting over macros with this guy:
>
>     https://github.com/mingw-w64/mingw-w64/blob/master/mingw-w64-headers/crt/unistd.h
>
>     I found it easiest to completely stop it from getting in our way
>     completely, with the attached.  Thoughts, anyone?
>
>     Davinder, Jakub, are you in a position repro the issue and make
>     versions of the patch for the 13, 15 and master branches on top of
>     that?
>
>
> Yes, Thomas, the issue is reproducible.
> After applying your patch and replacing off_t with pgoff_t, the 
> problem has been resolved. I have attached the patches for the 13, 15, 
> and master. These patches include only the changes related to pgoff_t, 
> intended for use with the v3-0001 patch--
>
>


Hi, Thomas,


Do you have a plan for moving ahead with this?


cheers


andrew

--
Andrew Dunstan
EDB:https://www.enterprisedb.com


^ permalink  raw  reply  [nested|flat] 75+ messages in thread


end of thread, other threads:[~2025-01-06 16:22 UTC | newest]

Thread overview: 75+ messages (download: mbox mbox.gz follow: Atom feed)
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2021-02-24 17:33 [PATCH v5 2/2] Add a --outdated option to reindexdb Julien Rouhaud <[email protected]>
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2021-02-24 17:33 [PATCH v7 2/2] Add a --outdated option to reindexdb Julien Rouhaud <[email protected]>
2021-02-24 17:33 [PATCH v7 2/2] Add a --outdated option to reindexdb Julien Rouhaud <[email protected]>
2021-02-24 17:33 [PATCH v7 2/2] Add a --outdated option to reindexdb Julien Rouhaud <[email protected]>
2021-02-24 17:33 [PATCH v5 2/2] Add a --outdated option to reindexdb Julien Rouhaud <[email protected]>
2021-02-24 17:33 [PATCH v6 2/2] Add a --outdated option to reindexdb Julien Rouhaud <[email protected]>
2021-02-24 17:33 [PATCH v7 2/2] Add a --outdated option to reindexdb Julien Rouhaud <[email protected]>
2021-02-24 17:33 [PATCH v5 2/2] Add a --outdated option to reindexdb Julien Rouhaud <[email protected]>
2021-02-24 17:33 [PATCH v7 2/2] Add a --outdated option to reindexdb Julien Rouhaud <[email protected]>
2021-02-24 17:33 [PATCH v7 2/2] Add a --outdated option to reindexdb Julien Rouhaud <[email protected]>
2021-02-24 17:33 [PATCH v6 2/2] Add a --outdated option to reindexdb Julien Rouhaud <[email protected]>
2021-02-24 17:33 [PATCH v7 2/2] Add a --outdated option to reindexdb Julien Rouhaud <[email protected]>
2021-02-24 17:33 [PATCH v6 2/2] Add a --outdated option to reindexdb Julien Rouhaud <[email protected]>
2021-02-24 17:33 [PATCH v6 2/2] Add a --outdated option to reindexdb Julien Rouhaud <[email protected]>
2021-02-24 17:33 [PATCH v5 2/2] Add a --outdated option to reindexdb Julien Rouhaud <[email protected]>
2021-02-24 17:33 [PATCH v7 2/2] Add a --outdated option to reindexdb Julien Rouhaud <[email protected]>
2021-02-24 17:33 [PATCH v7 2/2] Add a --outdated option to reindexdb Julien Rouhaud <[email protected]>
2021-02-24 17:33 [PATCH v5 2/2] Add a --outdated option to reindexdb Julien Rouhaud <[email protected]>
2021-02-24 17:33 [PATCH v6 2/2] Add a --outdated option to reindexdb Julien Rouhaud <[email protected]>
2024-12-06 06:01 Re: Windows pg_basebackup unable to create >2GB pg_wal.tar tarballs ("could not close file: Invalid argument" when creating pg_wal.tar of size ~ 2^31 bytes) Thomas Munro <[email protected]>
2024-12-07 07:42 ` Re: Windows pg_basebackup unable to create >2GB pg_wal.tar tarballs ("could not close file: Invalid argument" when creating pg_wal.tar of size ~ 2^31 bytes) Davinder Singh <[email protected]>
2025-01-06 16:22   ` Re: Windows pg_basebackup unable to create >2GB pg_wal.tar tarballs ("could not close file: Invalid argument" when creating pg_wal.tar of size ~ 2^31 bytes) Andrew Dunstan <[email protected]>

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