percona · dutow · Sep 25, 2025 · Sep 25, 2025 · Apr 15, 2025 · Sep 25, 2025
diff --git a/COPYRIGHT b/COPYRIGHT
@@ -1,6 +1,15 @@
-PostgreSQL Database Management System
+Percona Server for PostgreSQL - License
 (also known as Postgres, formerly known as Postgres95)
 
+This software includes portions copyrighted or made available by:
+•	Percona, LLC and/or its affiliates (collectively, "Percona")
+•	PostgreSQL Global Development Group ("PostgreSQL")
+•	The Regents of the University of California
+
+A.	PostgreSQL and University of California Portions.  Those portions of this Software
+copyrighted or made available by PostgreSQL or The Regents of the University of
+California are subject to the following:
+
 Portions Copyright (c) 1996-2026, PostgreSQL Global Development Group
 
 Portions Copyright (c) 1994, The Regents of the University of California
@@ -12,12 +21,32 @@ paragraph and the following two paragraphs appear in all copies.
 
 IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
 DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING
-LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS
-DOCUMENTATION, EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE
-POSSIBILITY OF SUCH DAMAGE.
-
-THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
-INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
-AND FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
-ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATIONS TO
-PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+LOST PROFITS, ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION,
+EVEN IF THE UNIVERSITY OF CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+
+THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,INCLUDING,
+BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS" BASIS,
+AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATIONS TO PROVIDE MAINTENANCE,
+SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+
+B.	Percona Portions.  Those portions of this Software copyrighted or made available
+by Percona are subject both to the disclaimers in part A of this license and the following:
+
+Copyright (c) 2024-2025, Percona LLC and/or its affiliates
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose, without fee, and without a written agreement
+is hereby granted, provided that the above copyright notice and this
+paragraph and the following two paragraphs appear in all copies.
+
+IN NO EVENT SHALL PERCONA BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT, SPECIAL,
+INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING OUT OF THE
+USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF PERCONA HAS BEEN ADVISED
+OF THE POSSIBILITY OF SUCH DAMAGE.
+
+PERCONA SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND PERCONA HAS NO
+OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
diff --git a/README.md b/README.md
@@ -1,8 +1,10 @@
-PostgreSQL Database Management System
-=====================================
+Percona Server for PostgreSQL
+=============================
 
-This directory contains the source code distribution of the PostgreSQL
-database management system.
+Percona Server for PostgreSQL is a free, enhanced, fully compatible,
+open source, drop-in replacement for the PostgreSQL Database Management
+System with enterprise-grade features.
+It requires no changes to PostgreSQL applications or code.
 
 PostgreSQL is an advanced object-relational database management system
 that supports an extended subset of the SQL standard, including
@@ -11,11 +13,24 @@ and functions.  This distribution also contains C language bindings.
 
 Copyright and license information can be found in the file COPYRIGHT.
 
-General documentation about this version of PostgreSQL can be found at
-<https://www.postgresql.org/docs/18/>.  In particular, information
+General documentation about this version of Percona Server for PostgreSQL can be found at
+[https://docs.percona.com/postgresql/18/](https://docs.percona.com/postgresql/18/).  In particular, information
 about building PostgreSQL from the source code can be found at
-<https://www.postgresql.org/docs/18/installation.html>.
+[https://docs.percona.com/postgresql/18/installing.html](https://docs.percona.com/postgresql/18/installing.html).
+
+Submit a bug report or a feature request
+---
+
+If you find a bug in Percona Server for PostgreSQL, you can submit a report to the project's
+[Jira](https://perconadev.atlassian.net/jira/software/c/projects/PG/issues) issue tracker
+
+As a general rule of thumb, please try to create a bug report that is:
+
+Reproducible - include the steps on how to reproduce the issue
+
+Specific - include as much detail as possible, such as which version, which environment, etc.
+
+Unique - do not duplicate existing tickets
+
+Scoped to a single issue - only one issue per report
 
-The latest version of this software, and related software, may be
-obtained at <https://www.postgresql.org/download/>.  For more information
-look at our web site located at <https://www.postgresql.org/>.
diff --git a/config/llvm.m4 b/config/llvm.m4
@@ -47,20 +47,20 @@ AC_DEFUN([PGAC_LLVM_SUPPORT],
 
   # Collect compiler flags necessary to build the LLVM dependent
   # shared library.
-  for pgac_option in `$LLVM_CONFIG --cppflags`; do
+  for pgac_option in `$LLVM_CONFIG --link-static --cppflags`; do
     case $pgac_option in
       -I*|-D*) LLVM_CPPFLAGS="$pgac_option $LLVM_CPPFLAGS";;
     esac
   done
 
-  for pgac_option in `$LLVM_CONFIG --ldflags`; do
+  for pgac_option in `$LLVM_CONFIG --link-static --ldflags`; do
     case $pgac_option in
       -L*) LLVM_LIBS="$LLVM_LIBS $pgac_option";;
     esac
   done
 
   # ABI influencing options, standard influencing options
-  for pgac_option in `$LLVM_CONFIG --cxxflags`; do
+  for pgac_option in `$LLVM_CONFIG --link-static --cxxflags`; do
     case $pgac_option in
       -fno-rtti*) LLVM_CXXFLAGS="$LLVM_CXXFLAGS $pgac_option";;
       -std=*) LLVM_CXXFLAGS="$LLVM_CXXFLAGS $pgac_option";;
@@ -71,7 +71,7 @@ AC_DEFUN([PGAC_LLVM_SUPPORT],
   # libs. As some components are optional, we can't just list all of
   # them as it'd raise an error.
   pgac_components='';
-  for pgac_component in `$LLVM_CONFIG --components`; do
+  for pgac_component in `$LLVM_CONFIG --link-static --components`; do
     case $pgac_component in
       engine) pgac_components="$pgac_components $pgac_component";;
       debuginfodwarf) pgac_components="$pgac_components $pgac_component";;
@@ -85,7 +85,7 @@ AC_DEFUN([PGAC_LLVM_SUPPORT],
   # And then get the libraries that need to be linked in for the
   # selected components.  They're large libraries, we only want to
   # link them into the LLVM using shared library.
-  for pgac_option in `$LLVM_CONFIG --libs --system-libs $pgac_components`; do
+  for pgac_option in `$LLVM_CONFIG --link-static --libs --system-libs $pgac_components`; do
     case $pgac_option in
       -l*) LLVM_LIBS="$LLVM_LIBS $pgac_option";;
     esac

diff --git a/configure b/configure
@@ -2885,6 +2885,13 @@ cat >>confdefs.h <<_ACEOF
 _ACEOF
 
 
+PG_PERCONAVERSION=1
+
+cat >>confdefs.h <<_ACEOF
+#define PG_PERCONAVERSION "$PG_PERCONAVERSION"
+_ACEOF
+
+
 
 
 
@@ -2899,12 +2906,12 @@ if test "${with_extra_version+set}" = set; then :
       as_fn_error $? "argument required for --with-extra-version option" "$LINENO" 5
       ;;
     *)
-      PG_VERSION="$PACKAGE_VERSION$withval"
+      PG_VERSION="$PACKAGE_VERSION - Percona Server for PostgreSQL $PG_MAJORVERSION.$PG_MINORVERSION.$PG_PERCONAVERSION$withval"
       ;;
   esac
 
 else
-  PG_VERSION="$PACKAGE_VERSION"
+  PG_VERSION="$PACKAGE_VERSION - Percona Server for PostgreSQL $PG_MAJORVERSION.$PG_MINORVERSION.$PG_PERCONAVERSION"
 fi
 
 
@@ -5186,20 +5193,20 @@ fi
 
   # Collect compiler flags necessary to build the LLVM dependent
   # shared library.
-  for pgac_option in `$LLVM_CONFIG --cppflags`; do
+  for pgac_option in `$LLVM_CONFIG --link-static --cppflags`; do
     case $pgac_option in
       -I*|-D*) LLVM_CPPFLAGS="$pgac_option $LLVM_CPPFLAGS";;
     esac
   done
 
-  for pgac_option in `$LLVM_CONFIG --ldflags`; do
+  for pgac_option in `$LLVM_CONFIG --link-static --ldflags`; do
     case $pgac_option in
       -L*) LLVM_LIBS="$LLVM_LIBS $pgac_option";;
     esac
   done
 
   # ABI influencing options, standard influencing options
-  for pgac_option in `$LLVM_CONFIG --cxxflags`; do
+  for pgac_option in `$LLVM_CONFIG --link-static --cxxflags`; do
     case $pgac_option in
       -fno-rtti*) LLVM_CXXFLAGS="$LLVM_CXXFLAGS $pgac_option";;
       -std=*) LLVM_CXXFLAGS="$LLVM_CXXFLAGS $pgac_option";;
@@ -5210,7 +5217,7 @@ fi
   # libs. As some components are optional, we can't just list all of
   # them as it'd raise an error.
   pgac_components='';
-  for pgac_component in `$LLVM_CONFIG --components`; do
+  for pgac_component in `$LLVM_CONFIG --link-static --components`; do
     case $pgac_component in
       engine) pgac_components="$pgac_components $pgac_component";;
       debuginfodwarf) pgac_components="$pgac_components $pgac_component";;
@@ -5224,7 +5231,7 @@ fi
   # And then get the libraries that need to be linked in for the
   # selected components.  They're large libraries, we only want to
   # link them into the LLVM using shared library.
-  for pgac_option in `$LLVM_CONFIG --libs --system-libs $pgac_components`; do
+  for pgac_option in `$LLVM_CONFIG --link-static --libs --system-libs $pgac_components`; do
     case $pgac_option in
       -l*) LLVM_LIBS="$LLVM_LIBS $pgac_option";;
     esac

diff --git a/configure.ac b/configure.ac
@@ -37,9 +37,12 @@ AC_DEFINE_UNQUOTED(PG_MAJORVERSION, "$PG_MAJORVERSION", [PostgreSQL major versio
 AC_DEFINE_UNQUOTED(PG_MAJORVERSION_NUM, $PG_MAJORVERSION, [PostgreSQL major version number])
 AC_DEFINE_UNQUOTED(PG_MINORVERSION_NUM, $PG_MINORVERSION, [PostgreSQL minor version number])
 
+[PG_PERCONAVERSION=1]
+AC_DEFINE_UNQUOTED(PG_PERCONAVERSION, "$PG_PERCONAVERSION", [PostgreSQL Percona version as a string])
+
 PGAC_ARG_REQ(with, extra-version, [STRING], [append STRING to version],
-             [PG_VERSION="$PACKAGE_VERSION$withval"],
-             [PG_VERSION="$PACKAGE_VERSION"])
+             [PG_VERSION="$PACKAGE_VERSION - Percona Server for PostgreSQL $PG_MAJORVERSION.$PG_MINORVERSION.$PG_PERCONAVERSION$withval"],
+             [PG_VERSION="$PACKAGE_VERSION - Percona Server for PostgreSQL $PG_MAJORVERSION.$PG_MINORVERSION.$PG_PERCONAVERSION"])
 AC_DEFINE_UNQUOTED(PG_VERSION, "$PG_VERSION", [PostgreSQL version as a string])
 
 AC_CANONICAL_HOST

diff --git a/contrib/amcheck/verify_heapam.c b/contrib/amcheck/verify_heapam.c
@@ -16,6 +16,7 @@
 #include "access/multixact.h"
 #include "access/relation.h"
 #include "access/table.h"
+#include "access/tableam.h"
 #include "access/toast_internals.h"
 #include "access/visibilitymap.h"
 #include "access/xact.h"
@@ -343,7 +344,7 @@ verify_heapam(PG_FUNCTION_ARGS)
 	 * Other relkinds might be using a different AM, so check.
 	 */
 	if (ctx.rel->rd_rel->relkind != RELKIND_SEQUENCE &&
-		ctx.rel->rd_rel->relam != HEAP_TABLE_AM_OID)
+		ctx.rel->rd_tableam != GetHeapamTableAmRoutine())
 		ereport(ERROR,
 				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
 				 errmsg("only heap AM is supported")));

diff --git a/contrib/pageinspect/heapfuncs.c b/contrib/pageinspect/heapfuncs.c
@@ -27,6 +27,7 @@
 
 #include "access/htup_details.h"
 #include "access/relation.h"
+#include "access/tableam.h"
 #include "catalog/pg_am_d.h"
 #include "catalog/pg_type.h"
 #include "funcapi.h"
@@ -333,7 +334,7 @@ tuple_data_split_internal(Oid relid, char *tupdata,
 	 * Sequences always use heap AM, but they don't show that in the catalogs.
 	 */
 	if (rel->rd_rel->relkind != RELKIND_SEQUENCE &&
-		rel->rd_rel->relam != HEAP_TABLE_AM_OID)
+		rel->rd_tableam != GetHeapamTableAmRoutine())
 		ereport(ERROR, (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
 						errmsg("only heap AM is supported")));
 

diff --git a/contrib/pg_surgery/heap_surgery.c b/contrib/pg_surgery/heap_surgery.c
@@ -14,6 +14,7 @@
 
 #include "access/htup_details.h"
 #include "access/relation.h"
+#include "access/tableam.h"
 #include "access/visibilitymap.h"
 #include "access/xloginsert.h"
 #include "catalog/pg_am_d.h"
@@ -115,7 +116,7 @@ heap_force_common(FunctionCallInfo fcinfo, HeapTupleForceOption heap_force_opt)
 						RelationGetRelationName(rel)),
 				 errdetail_relkind_not_supported(rel->rd_rel->relkind)));
 
-	if (rel->rd_rel->relam != HEAP_TABLE_AM_OID)
+	if (rel->rd_tableam != GetHeapamTableAmRoutine())
 		ereport(ERROR,
 				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
 				 errmsg("only heap AM is supported")));

diff --git a/contrib/pgrowlocks/pgrowlocks.c b/contrib/pgrowlocks/pgrowlocks.c
@@ -95,7 +95,7 @@ pgrowlocks(PG_FUNCTION_ARGS)
 				(errcode(ERRCODE_WRONG_OBJECT_TYPE),
 				 errmsg("\"%s\" is not a table",
 						RelationGetRelationName(rel))));
-	else if (rel->rd_rel->relam != HEAP_TABLE_AM_OID)
+	else if (rel->rd_tableam != GetHeapamTableAmRoutine())
 		ereport(ERROR,
 				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
 				 errmsg("only heap AM is supported")));

diff --git a/contrib/pgstattuple/pgstatapprox.c b/contrib/pgstattuple/pgstatapprox.c
@@ -280,7 +280,7 @@ pgstattuple_approx_internal(Oid relid, FunctionCallInfo fcinfo)
 						RelationGetRelationName(rel)),
 				 errdetail_relkind_not_supported(rel->rd_rel->relkind)));
 
-	if (rel->rd_rel->relam != HEAP_TABLE_AM_OID)
+	if (rel->rd_tableam != GetHeapamTableAmRoutine())
 		ereport(ERROR, (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
 						errmsg("only heap AM is supported")));
 

diff --git a/contrib/pgstattuple/pgstattuple.c b/contrib/pgstattuple/pgstattuple.c
@@ -329,7 +329,7 @@ pgstat_heap(Relation rel, FunctionCallInfo fcinfo)
 	 * Sequences always use heap AM, but they don't show that in the catalogs.
 	 */
 	if (rel->rd_rel->relkind != RELKIND_SEQUENCE &&
-		rel->rd_rel->relam != HEAP_TABLE_AM_OID)
+		rel->rd_tableam != GetHeapamTableAmRoutine())
 		ereport(ERROR,
 				(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
 				 errmsg("only heap AM is supported")));

diff --git a/meson.build b/meson.build
@@ -135,6 +135,7 @@ endif
 pg_version_major = pg_version_arr[0].to_int()
 pg_version_minor = pg_version_arr[1].to_int()
 pg_version_num = (pg_version_major * 10000) + pg_version_minor
+pg_percona_ver = '1'
 
 pg_url = 'https://www.postgresql.org/'
 
@@ -145,6 +146,7 @@ cdata.set_quoted('PACKAGE_VERSION', pg_version)
 cdata.set_quoted('PACKAGE_STRING', 'PostgreSQL @0@'.format(pg_version))
 cdata.set_quoted('PACKAGE_TARNAME', 'postgresql')
 
+pg_version += ' - Percona Server for PostgreSQL ' + pg_version_major.to_string() + '.' + pg_version_minor.to_string() + '.' + pg_percona_ver
 pg_version += get_option('extra_version')
 cdata.set_quoted('PG_VERSION', pg_version)
 cdata.set_quoted('PG_MAJORVERSION', pg_version_major.to_string())
@@ -808,7 +810,7 @@ endif
 llvmopt = get_option('llvm')
 llvm = not_found_dep
 if add_languages('cpp', required: llvmopt, native: false)
-  llvm = dependency('llvm', version: '>=14', method: 'config-tool', required: llvmopt)
+  llvm = dependency('llvm', version: '>=14', method: 'config-tool', required: llvmopt, static: true)
 
   if llvm.found()
 

diff --git a/src/backend/access/heap/heapam_handler.c b/src/backend/access/heap/heapam_handler.c
@@ -588,6 +588,8 @@ heapam_relation_set_new_filelocator(Relation rel,
 {
 	SMgrRelation srel;
 
+	RelFileLocator oldlocator = rel->rd_locator;
+
 	/*
 	 * Initialize to the minimum XID that could put tuples in the table. We
 	 * know that no xacts older than RecentXmin are still running, so that
@@ -605,7 +607,7 @@ heapam_relation_set_new_filelocator(Relation rel,
 	 */
 	*minmulti = GetOldestMultiXactId();
 
-	srel = RelationCreateStorage(*newrlocator, persistence, true);
+	srel = RelationCreateStorage2(oldlocator, *newrlocator, persistence, true);
 
 	/*
 	 * If required, set up an init fork for an unlogged table so that it can
@@ -615,7 +617,7 @@ heapam_relation_set_new_filelocator(Relation rel,
 	{
 		Assert(rel->rd_rel->relkind == RELKIND_RELATION ||
 			   rel->rd_rel->relkind == RELKIND_TOASTVALUE);
-		smgrcreate(srel, INIT_FORKNUM, false);
+		smgrcreate2(oldlocator, srel, INIT_FORKNUM, false);
 		log_smgrcreate(newrlocator, INIT_FORKNUM);
 	}
 
@@ -648,7 +650,7 @@ heapam_relation_copy_data(Relation rel, const RelFileLocator *newrlocator)
 	 * NOTE: any conflict in relfilenumber value will be caught in
 	 * RelationCreateStorage().
 	 */
-	dstrel = RelationCreateStorage(*newrlocator, rel->rd_rel->relpersistence, true);
+	dstrel = RelationCreateStorage2(rel->rd_locator, *newrlocator, rel->rd_rel->relpersistence, true);
 
 	/* copy main fork */
 	RelationCopyStorage(RelationGetSmgr(rel), dstrel, MAIN_FORKNUM,
@@ -660,7 +662,7 @@ heapam_relation_copy_data(Relation rel, const RelFileLocator *newrlocator)
 	{
 		if (smgrexists(RelationGetSmgr(rel), forkNum))
 		{
-			smgrcreate(dstrel, forkNum, false);
+			smgrcreate2(rel->rd_locator, dstrel, forkNum, false);
 
 			/*
 			 * WAL log creation if the relation is persistent, or this is the