Update Postgres 14 to 14.20

.abi-compliance-history

@@ -0,0 +1,30 @@
+# Reference point for ABI compliance checks
+#
+# This file lists commits on the current branch that break ABI compatibility in
+# ways that have been deemed acceptable (e.g., removing an extern function with
+# no third-party uses).  The primary intent of this file is to control the ABI
+# compliance checks on the buildfarm, but it also serves as a central location
+# to document the justification for each.
+#
+# In general, entries should be added reactively after an abi-compliance-check
+# buildfarm failure.  It is important to verify the details of the breakage
+# match expectations, as the first entry listed will become the updated ABI
+# baseline point.
+#
+# Add new entries by adding the output of the following to the top of the file:
+#
+# $ git log --pretty=format:"%H%n#%n# %s%n# %cd%n#%n# <ADD JUSTIFICATION HERE>" $ABIBREAKGITHASH -1 --date=iso
+#
+# Be sure to replace "<ADD JUSTIFICATION HERE>" with details of your change and
+# why it is deemed acceptable.
+
+983b3636259b1502121cbae99d8a2f0d0515d87d
+#
+# Fix re-distributing previously distributed invalidation messages during logical decoding.
+# 2025-06-16 17:35:50 -0700
+#
+# This is the original ABI baseline point for REL_14_STABLE.  The first entry
+# would ordinarily point to something just before the .0 release, but this file
+# was first added in October 2025, and we're unlikely to act upon ABI breaks in
+# released minor versions, so we've chosen to truncate the ABI history to start
+# with the most recent ABI break documented in the git commit history.

.git-blame-ignore-revs

@@ -14,6 +14,9 @@
 #
 # $ git log --pretty=format:"%H # %cd%n# %s" $PGINDENTGITHASH -1 --date=iso
 
+e95010a9c0bad33cca21d762dd1151167993fd37 # 2025-10-21 09:56:26 -0500
+# Re-pgindent brin.c.
+
 e1c1c30f635390b6a3ae4993e8cac213a33e6e3f # 2021-06-28 11:05:54 -0400
 # Pre branch pgindent / pgperltidy run
 

configure

@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for PostgreSQL 14.19.
+# Generated by GNU Autoconf 2.69 for PostgreSQL 14.20.
 #
 # Report bugs to <pgsql-bugs@lists.postgresql.org>.
 #
@@ -582,8 +582,8 @@ MAKEFLAGS=
 # Identity of this package.
 PACKAGE_NAME='PostgreSQL'
 PACKAGE_TARNAME='postgresql'
-PACKAGE_VERSION='14.19'
-PACKAGE_STRING='PostgreSQL 14.19'
+PACKAGE_VERSION='14.20'
+PACKAGE_STRING='PostgreSQL 14.20'
 PACKAGE_BUGREPORT='pgsql-bugs@lists.postgresql.org'
 PACKAGE_URL='https://www.postgresql.org/'
 
@@ -1445,7 +1445,7 @@ if test "$ac_init_help" = "long"; then
   # Omit some internal or obsolete options to make the list less imposing.
   # This message is too long to be a string in the A/UX 3.1 sh.
   cat <<_ACEOF
-\`configure' configures PostgreSQL 14.19 to adapt to many kinds of systems.
+\`configure' configures PostgreSQL 14.20 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1510,7 +1510,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of PostgreSQL 14.19:";;
+     short | recursive ) echo "Configuration of PostgreSQL 14.20:";;
    esac
   cat <<\_ACEOF
 
@@ -1682,7 +1682,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-PostgreSQL configure 14.19
+PostgreSQL configure 14.20
 generated by GNU Autoconf 2.69
 
 Copyright (C) 2012 Free Software Foundation, Inc.
@@ -2435,7 +2435,7 @@ cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 
-It was created by PostgreSQL $as_me 14.19, which was
+It was created by PostgreSQL $as_me 14.20, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   $ $0 $@
@@ -20763,7 +20763,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # report actual input values of CONFIG_FILES etc. instead of their
 # values after options handling.
 ac_log="
-This file was extended by PostgreSQL $as_me 14.19, which was
+This file was extended by PostgreSQL $as_me 14.20, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -20834,7 +20834,7 @@ _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
 ac_cs_version="\\
-PostgreSQL config.status 14.19
+PostgreSQL config.status 14.20
 configured by $0, generated by GNU Autoconf 2.69,
   with options \\"\$ac_cs_config\\"
 

configure.ac

@@ -17,7 +17,7 @@ dnl Read the Autoconf manual for details.
 dnl
 m4_pattern_forbid(^PGAC_)dnl to catch undefined macros
 
-AC_INIT([PostgreSQL], [14.19], [pgsql-bugs@lists.postgresql.org], [], [https://www.postgresql.org/])
+AC_INIT([PostgreSQL], [14.20], [pgsql-bugs@lists.postgresql.org], [], [https://www.postgresql.org/])
 
 m4_if(m4_defn([m4_PACKAGE_VERSION]), [2.69], [], [m4_fatal([Autoconf version 2.69 is required.
 Untested combinations of 'autoconf' and PostgreSQL versions are not

contrib/pg_buffercache/pg_buffercache_pages.c

@@ -11,6 +11,7 @@
 #include "access/htup_details.h"
 #include "catalog/pg_type.h"
 #include "funcapi.h"
+#include "miscadmin.h"
 #include "storage/buf_internals.h"
 #include "storage/bufmgr.h"
 
@@ -148,6 +149,8 @@ pg_buffercache_pages(PG_FUNCTION_ARGS)
 			BufferDesc *bufHdr;
 			uint32		buf_state;
 
+			CHECK_FOR_INTERRUPTS();
+
 			bufHdr = GetBufferDescriptor(i);
 			/* Lock each buffer header before inspecting. */
 			buf_state = LockBufHdr(bufHdr);

contrib/pg_prewarm/pg_prewarm.c

@@ -16,10 +16,12 @@
 #include <unistd.h>
 
 #include "access/relation.h"
+#include "catalog/index.h"
 #include "fmgr.h"
 #include "miscadmin.h"
 #include "optimizer/cost.h"
 #include "storage/bufmgr.h"
+#include "storage/lmgr.h"
 #include "storage/smgr.h"
 #include "utils/acl.h"
 #include "utils/builtins.h"
@@ -69,6 +71,8 @@ pg_prewarm(PG_FUNCTION_ARGS)
 	char	   *ttype;
 	PrewarmType ptype;
 	AclResult	aclresult;
+	char		relkind;
+	Oid			privOid;
 
 	/* Basic sanity checking. */
 	if (PG_ARGISNULL(0))
@@ -104,9 +108,43 @@ pg_prewarm(PG_FUNCTION_ARGS)
 	forkString = text_to_cstring(forkName);
 	forkNumber = forkname_to_number(forkString);
 
-	/* Open relation and check privileges. */
+	/*
+	 * Open relation and check privileges.  If the relation is an index, we
+	 * must check the privileges on its parent table instead.
+	 */
+	relkind = get_rel_relkind(relOid);
+	if (relkind == RELKIND_INDEX ||
+		relkind == RELKIND_PARTITIONED_INDEX)
+	{
+		privOid = IndexGetRelation(relOid, true);
+
+		/* Lock table before index to avoid deadlock. */
+		if (OidIsValid(privOid))
+			LockRelationOid(privOid, AccessShareLock);
+	}
+	else
+		privOid = relOid;
+
 	rel = relation_open(relOid, AccessShareLock);
-	aclresult = pg_class_aclcheck(relOid, GetUserId(), ACL_SELECT);
+
+	/*
+	 * It's possible that the relation with OID "privOid" was dropped and the
+	 * OID was reused before we locked it.  If that happens, we could be left
+	 * with the wrong parent table OID, in which case we must ERROR.  It's
+	 * possible that such a race would change the outcome of
+	 * get_rel_relkind(), too, but the worst case scenario there is that we'll
+	 * check privileges on the index instead of its parent table, which isn't
+	 * too terrible.
+	 */
+	if (!OidIsValid(privOid) ||
+		(privOid != relOid &&
+		 privOid != IndexGetRelation(relOid, true)))
+		ereport(ERROR,
+				(errcode(ERRCODE_UNDEFINED_TABLE),
+				 errmsg("could not find parent table of index \"%s\"",
+						RelationGetRelationName(rel))));
+
+	aclresult = pg_class_aclcheck(privOid, GetUserId(), ACL_SELECT);
 	if (aclresult != ACLCHECK_OK)
 		aclcheck_error(aclresult, get_relkind_objtype(rel->rd_rel->relkind), get_rel_name(relOid));
 
@@ -211,8 +249,11 @@ pg_prewarm(PG_FUNCTION_ARGS)
 		}
 	}
 
-	/* Close relation, release lock. */
+	/* Close relation, release locks. */
 	relation_close(rel, AccessShareLock);
 
+	if (privOid != relOid)
+		UnlockRelationOid(privOid, AccessShareLock);
+
 	PG_RETURN_INT64(blocks_done);
 }

contrib/pg_trgm/expected/pg_trgm.out

@@ -4693,6 +4693,23 @@ select count(*) from test_trgm where t like '%99%' and t like '%qw%';
     19
 (1 row)
 
+explain (costs off)
+select count(*) from test_trgm where t %> '' and t %> '%qwerty%';
+                               QUERY PLAN                                
+-------------------------------------------------------------------------
+ Aggregate
+   ->  Bitmap Heap Scan on test_trgm
+         Recheck Cond: ((t %> ''::text) AND (t %> '%qwerty%'::text))
+         ->  Bitmap Index Scan on trgm_idx
+               Index Cond: ((t %> ''::text) AND (t %> '%qwerty%'::text))
+(5 rows)
+
+select count(*) from test_trgm where t %> '' and t %> '%qwerty%';
+ count 
+-------
+     0
+(1 row)
+
 -- ensure that pending-list items are handled correctly, too
 create temp table t_test_trgm(t text COLLATE "C");
 create index t_trgm_idx on t_test_trgm using gin (t gin_trgm_ops);
@@ -4731,6 +4748,23 @@ select count(*) from t_test_trgm where t like '%99%' and t like '%qw%';
      1
 (1 row)
 
+explain (costs off)
+select count(*) from t_test_trgm where t %> '' and t %> '%qwerty%';
+                               QUERY PLAN                                
+-------------------------------------------------------------------------
+ Aggregate
+   ->  Bitmap Heap Scan on t_test_trgm
+         Recheck Cond: ((t %> ''::text) AND (t %> '%qwerty%'::text))
+         ->  Bitmap Index Scan on t_trgm_idx
+               Index Cond: ((t %> ''::text) AND (t %> '%qwerty%'::text))
+(5 rows)
+
+select count(*) from t_test_trgm where t %> '' and t %> '%qwerty%';
+ count 
+-------
+     0
+(1 row)
+
 -- run the same queries with sequential scan to check the results
 set enable_bitmapscan=off;
 set enable_seqscan=on;
@@ -4746,6 +4780,12 @@ select count(*) from test_trgm where t like '%99%' and t like '%qw%';
     19
 (1 row)
 
+select count(*) from test_trgm where t %> '' and t %> '%qwerty%';
+ count 
+-------
+     0
+(1 row)
+
 select count(*) from t_test_trgm where t like '%99%' and t like '%qwerty%';
  count 
 -------
@@ -4758,6 +4798,12 @@ select count(*) from t_test_trgm where t like '%99%' and t like '%qw%';
      1
 (1 row)
 
+select count(*) from t_test_trgm where t %> '' and t %> '%qwerty%';
+ count 
+-------
+     0
+(1 row)
+
 reset enable_bitmapscan;
 create table test2(t text COLLATE "C");
 insert into test2 values ('abcdef');

contrib/pg_trgm/sql/pg_trgm.sql

@@ -80,6 +80,9 @@ select count(*) from test_trgm where t like '%99%' and t like '%qwerty%';
 explain (costs off)
 select count(*) from test_trgm where t like '%99%' and t like '%qw%';
 select count(*) from test_trgm where t like '%99%' and t like '%qw%';
+explain (costs off)
+select count(*) from test_trgm where t %> '' and t %> '%qwerty%';
+select count(*) from test_trgm where t %> '' and t %> '%qwerty%';
 -- ensure that pending-list items are handled correctly, too
 create temp table t_test_trgm(t text COLLATE "C");
 create index t_trgm_idx on t_test_trgm using gin (t gin_trgm_ops);
@@ -90,14 +93,19 @@ select count(*) from t_test_trgm where t like '%99%' and t like '%qwerty%';
 explain (costs off)
 select count(*) from t_test_trgm where t like '%99%' and t like '%qw%';
 select count(*) from t_test_trgm where t like '%99%' and t like '%qw%';
+explain (costs off)
+select count(*) from t_test_trgm where t %> '' and t %> '%qwerty%';
+select count(*) from t_test_trgm where t %> '' and t %> '%qwerty%';
 
 -- run the same queries with sequential scan to check the results
 set enable_bitmapscan=off;
 set enable_seqscan=on;
 select count(*) from test_trgm where t like '%99%' and t like '%qwerty%';
 select count(*) from test_trgm where t like '%99%' and t like '%qw%';
+select count(*) from test_trgm where t %> '' and t %> '%qwerty%';
 select count(*) from t_test_trgm where t like '%99%' and t like '%qwerty%';
 select count(*) from t_test_trgm where t like '%99%' and t like '%qw%';
+select count(*) from t_test_trgm where t %> '' and t %> '%qwerty%';
 reset enable_bitmapscan;
 
 create table test2(t text COLLATE "C");

contrib/pgstattuple/pgstattuple.c

@@ -434,7 +434,7 @@ pgstat_btree_page(pgstattuple_type *stat, Relation rel, BlockNumber blkno,
 		/* fully empty page */
 		stat->free_space += BLCKSZ;
 	}
-	else
+	else if (PageGetSpecialSize(page) == MAXALIGN(sizeof(BTPageOpaqueData)))
 	{
 		BTPageOpaque opaque;
 
@@ -468,10 +468,16 @@ pgstat_hash_page(pgstattuple_type *stat, Relation rel, BlockNumber blkno,
 	Buffer		buf;
 	Page		page;
 
-	buf = _hash_getbuf_with_strategy(rel, blkno, HASH_READ, 0, bstrategy);
+	buf = ReadBufferExtended(rel, MAIN_FORKNUM, blkno, RBM_NORMAL, bstrategy);
+	LockBuffer(buf, HASH_READ);
 	page = BufferGetPage(buf);
 
-	if (PageGetSpecialSize(page) == MAXALIGN(sizeof(HashPageOpaqueData)))
+	if (PageIsNew(page))
+	{
+		/* fully empty page */
+		stat->free_space += BLCKSZ;
+	}
+	else if (PageGetSpecialSize(page) == MAXALIGN(sizeof(HashPageOpaqueData)))
 	{
 		HashPageOpaque opaque;
 
@@ -512,17 +518,23 @@ pgstat_gist_page(pgstattuple_type *stat, Relation rel, BlockNumber blkno,
 
 	buf = ReadBufferExtended(rel, MAIN_FORKNUM, blkno, RBM_NORMAL, bstrategy);
 	LockBuffer(buf, GIST_SHARE);
-	gistcheckpage(rel, buf);
 	page = BufferGetPage(buf);
-
-	if (GistPageIsLeaf(page))
+	if (PageIsNew(page))
 	{
-		pgstat_index_page(stat, page, FirstOffsetNumber,
-						  PageGetMaxOffsetNumber(page));
+		/* fully empty page */
+		stat->free_space += BLCKSZ;
 	}
-	else
+	else if (PageGetSpecialSize(page) == MAXALIGN(sizeof(GISTPageOpaqueData)))
 	{
-		/* root or node */
+		if (GistPageIsLeaf(page))
+		{
+			pgstat_index_page(stat, page, FirstOffsetNumber,
+							  PageGetMaxOffsetNumber(page));
+		}
+		else
+		{
+			/* root or node */
+		}
 	}
 
 	UnlockReleaseBuffer(buf);

contrib/postgres_fdw/.gitignore

@@ -1,4 +1,6 @@
 # Generated subdirectories
 /log/
 /results/
+/output_iso/
 /tmp_check/
+/tmp_check_iso/

contrib/postgres_fdw/Makefile

@@ -17,6 +17,8 @@ EXTENSION = postgres_fdw
 DATA = postgres_fdw--1.0.sql postgres_fdw--1.0--1.1.sql
 
 REGRESS = postgres_fdw
+ISOLATION = eval_plan_qual
+ISOLATION_OPTS = --load-extension=postgres_fdw
 
 ifdef USE_PGXS
 PG_CONFIG = pg_config