Update PG16 to 16.12

.abi-compliance-history

@@ -18,6 +18,43 @@
 # Be sure to replace "<ADD JUSTIFICATION HERE>" with details of your change and
 # why it is deemed acceptable.
 
+e37b598028469d260650e5e1671c8275d30e22b6
+#
+# Add file_extend_method=posix_fallocate,write_zeros.
+# 2026-02-06 17:43:49 +1300
+#
+# Modifying GUC tables isn't really an ABI break: the relevant object has
+# incomplete type so its layout is unknown to other C translation units.
+#
+# Discussion: https://www.postgresql.org/message-id/flat/e1f0cd3b-0164-45f5-9705-e922e59df90f%40dunslane.net#8a350b54012c0042f9869d288e978cfe
+
+e7391bbf14db94afee1fd3c011314f7b8ee493e9
+#
+# Fix trigger transition table capture for MERGE in CTE queries.
+# 2026-01-24 11:30:50 +0000
+#
+# This commit changed the TransitionCaptureState structure, replacing
+# the "tcs_private" field with 3 separate fields. This structure can
+# only be built using MakeTransitionCaptureState(), and PGXN contained
+# no calls to MakeTransitionCaptureState() or uses of the
+# TransitionCaptureState structure.
+
+1d7b02711f70f1ae87be562bca11ea2a9c43e85b
+#
+# For inplace update, send nontransactional invalidations.
+# 2025-12-16 16:13:55 -0800
+#
+# This changed PrepareToInvalidateCacheTuple() parameters.  PGXN contained no
+# calls to that function.
+
+d20abb5876ab61a627d80131b2cb78d9652557e3
+#
+# Check for CREATE privilege on the schema in CREATE STATISTICS.
+# 2025-11-10 09:00:00 -0600
+#
+# This commit added a parameter to CreateStatistics().  We are unaware of any
+# impacted third-party code.
+
 b2ae077205e18ac3e6d7bc5f7a6fa25a39323ec0
 #
 # Fix re-distributing previously distributed invalidation messages during logical decoding.

.cirrus.tasks.yml

@@ -429,7 +429,7 @@ task:
   env:
     CPUS: 4 # always get that much for cirrusci macOS instances
     BUILD_JOBS: $CPUS
-    # Test performance regresses noticably when using all cores. 8 seems to
+    # Test performance regresses noticeably when using all cores. 8 seems to
     # work OK. See
     # https://postgr.es/m/20220927040208.l3shfcidovpzqxfh%40awork3.anarazel.de
     TEST_JOBS: 8
@@ -655,6 +655,117 @@ task:
       type: text/plain
 
 
+task:
+  << : *WINDOWS_ENVIRONMENT_BASE
+  name: Windows - Server 2022, VS 2019 - Mkvcbuild.pm
+
+  env:
+    # Our legacy build system doesn't have test concurrency above the level
+    # of a single vcregress test target. Due to that, it's useful to run prove
+    # with multiple jobs. For the other tasks it isn't, because two sources
+    # (make and prove) of concurrency can overload machines.
+    #
+    # The concrete choice of 10 is based on a small bit of experimentation and
+    # likely can be improved upon further.
+    PROVE_FLAGS: -j10 --timer
+
+    # Avoid re-installing over and over
+    NO_TEMP_INSTALL: 1
+    # -m enables parallelism
+    # verbosity:minimal + Summary reduce verbosity, while keeping a summary of
+    #   errors/warnings
+    # ForceNoAlign prevents msbuild from introducing line-breaks for long lines
+    # disable file tracker, we're never going to rebuild, and it slows down the
+    #   build
+    MSBFLAGS: -m -verbosity:minimal "-consoleLoggerParameters:Summary;ForceNoAlign" /p:TrackFileAccess=false -nologo
+
+    # If tests hang forever, cirrus eventually times out. In that case log
+    # output etc is not uploaded, making the problem hard to debug. Of course
+    # tests internally should have shorter timeouts, but that's proven to not
+    # be sufficient. 15min currently is fast enough to finish individual test
+    # "suites".
+    T_C: "\"C:/Program Files/Git/usr/bin/timeout.exe\" -v -k60s 15m"
+
+    # startcreate_script starts a postgres instance that we don't want to get
+    # killed at the end of that script (it's stopped in stop_script). Can't
+    # trivially use background_scripts because a) need pg_ctl's dropping of
+    # permissions b) need to wait for startup to have finished, and we don't
+    # currently have a tool for that...
+    CIRRUS_ESCAPING_PROCESSES: 1
+
+    # Cirrus defaults to SetErrorMode(SEM_NOGPFAULTERRORBOX | ...). That
+    # prevents crash reporting from working unless binaries do SetErrorMode()
+    # themselves. Furthermore, it appears that either python or, more likely,
+    # the C runtime has a bug where SEM_NOGPFAULTERRORBOX can very
+    # occasionally *trigger* a crash on process exit - which is hard to debug,
+    # given that it explicitly prevents crash dumps from working...
+    # 0x8001 is SEM_FAILCRITICALERRORS | SEM_NOOPENFILEERRORBOX
+    CIRRUS_WINDOWS_ERROR_MODE: 0x8001
+
+  <<: *windows_task_template
+
+  depends_on: SanityCheck
+  only_if: $CI_WINDOWS_ENABLED
+
+  setup_additional_packages_script: |
+    REM choco install -y --no-progress ...
+
+  configure_script:
+    # copy errors out when using forward slashes
+    - copy src\tools\ci\windows_build_config.pl src\tools\msvc\config.pl
+    - vcvarsall x64
+    - perl src/tools/msvc/mkvcbuild.pl
+  build_script:
+    - vcvarsall x64
+    - msbuild %MSBFLAGS% pgsql.sln
+  tempinstall_script:
+    # Installation on windows currently only completely works from src/tools/msvc
+    - cd src/tools/msvc && perl install.pl %CIRRUS_WORKING_DIR%/tmp_install
+
+  test_regress_parallel_script: |
+    %T_C% perl src/tools/msvc/vcregress.pl check parallel
+  startcreate_script: |
+    rem paths to binaries need backslashes
+    tmp_install\bin\pg_ctl.exe initdb -D tmp_check/db -l tmp_check/initdb.log --options=--no-sync
+    echo include '%TEMP_CONFIG%' >> tmp_check/db/postgresql.conf
+    tmp_install\bin\pg_ctl.exe start -D tmp_check/db -l tmp_check/postmaster.log
+
+  test_pl_script: |
+    %T_C% perl src/tools/msvc/vcregress.pl plcheck
+  test_isolation_script: |
+    %T_C% perl src/tools/msvc/vcregress.pl isolationcheck
+  test_modules_script: |
+    %T_C% perl src/tools/msvc/vcregress.pl modulescheck
+  test_contrib_script: |
+    %T_C% perl src/tools/msvc/vcregress.pl contribcheck
+  stop_script: |
+    tmp_install\bin\pg_ctl.exe stop -D tmp_check/db -l tmp_check/postmaster.log
+  test_ssl_script: |
+    set with_ssl=openssl
+    %T_C% perl src/tools/msvc/vcregress.pl taptest ./src/test/ssl/
+  test_subscription_script: |
+    %T_C% perl src/tools/msvc/vcregress.pl taptest ./src/test/subscription/
+  test_authentication_script: |
+    %T_C% perl src/tools/msvc/vcregress.pl taptest ./src/test/authentication/
+  test_recovery_script: |
+    %T_C% perl src/tools/msvc/vcregress.pl recoverycheck
+  test_bin_script: |
+    %T_C% perl src/tools/msvc/vcregress.pl bincheck
+  test_ecpg_script: |
+    rem tries to build additional stuff
+    vcvarsall x64
+    rem References ecpg_regression.proj in the current dir
+    cd src/tools/msvc
+    %T_C% perl vcregress.pl ecpgcheck
+
+  # It's not really "_ac" but that has the same patterns as REL_15_STABLE used.
+  on_failure:
+    <<: *on_failure_ac
+    crashlog_artifacts:
+      path: "crashlog-*.txt"
+      type: text/plain
+
+
 task:
   name: CompilerWarnings
 

COPYRIGHT

@@ -1,7 +1,7 @@
 PostgreSQL Database Management System
 (also known as Postgres, formerly known as Postgres95)
 
-Portions Copyright (c) 1996-2025, PostgreSQL Global Development Group
+Portions Copyright (c) 1996-2026, PostgreSQL Global Development Group
 
 Portions Copyright (c) 1994, The Regents of the University of California
 

configure

@@ -1,6 +1,6 @@
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for PostgreSQL 16.11.
+# Generated by GNU Autoconf 2.69 for PostgreSQL 16.12.
 #
 # 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='16.11'
-PACKAGE_STRING='PostgreSQL 16.11'
+PACKAGE_VERSION='16.12'
+PACKAGE_STRING='PostgreSQL 16.12'
 PACKAGE_BUGREPORT='pgsql-bugs@lists.postgresql.org'
 PACKAGE_URL='https://www.postgresql.org/'
 
@@ -1450,7 +1450,7 @@ 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 16.11 to adapt to many kinds of systems.
+\`configure' configures PostgreSQL 16.12 to adapt to many kinds of systems.
 
 Usage: $0 [OPTION]... [VAR=VALUE]...
 
@@ -1515,7 +1515,7 @@ fi
 
 if test -n "$ac_init_help"; then
   case $ac_init_help in
-     short | recursive ) echo "Configuration of PostgreSQL 16.11:";;
+     short | recursive ) echo "Configuration of PostgreSQL 16.12:";;
    esac
   cat <<\_ACEOF
 
@@ -1691,7 +1691,7 @@ fi
 test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
   cat <<\_ACEOF
-PostgreSQL configure 16.11
+PostgreSQL configure 16.12
 generated by GNU Autoconf 2.69
 
 Copyright (C) 2012 Free Software Foundation, Inc.
@@ -2444,7 +2444,7 @@ 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 16.11, which was
+It was created by PostgreSQL $as_me 16.12, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   $ $0 $@
@@ -20133,7 +20133,7 @@ cat >>$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 16.11, which was
+This file was extended by PostgreSQL $as_me 16.12, which was
 generated by GNU Autoconf 2.69.  Invocation command line was
 
   CONFIG_FILES    = $CONFIG_FILES
@@ -20204,7 +20204,7 @@ _ACEOF
 cat >>$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 16.11
+PostgreSQL config.status 16.12
 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], [16.11], [pgsql-bugs@lists.postgresql.org], [], [https://www.postgresql.org/])
+AC_INIT([PostgreSQL], [16.12], [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/amcheck/t/002_cic.pl

@@ -60,5 +60,29 @@
 		  )
 	});
 
+# Test bt_index_parent_check() with indexes created with
+# CREATE INDEX CONCURRENTLY.
+$node->safe_psql('postgres', q(CREATE TABLE quebec(i int primary key)));
+# Insert two rows into index
+$node->safe_psql('postgres',
+	q(INSERT INTO quebec SELECT i FROM generate_series(1, 2) s(i);));
+
+# start background transaction
+my $in_progress_h = $node->background_psql('postgres');
+$in_progress_h->query_safe(q(BEGIN; SELECT pg_current_xact_id();));
+
+# delete one row from table, while background transaction is in progress
+$node->safe_psql('postgres', q(DELETE FROM quebec WHERE i = 1;));
+# create index concurrently, which will skip the deleted row
+$node->safe_psql('postgres',
+	q(CREATE INDEX CONCURRENTLY oscar ON quebec(i);));
+
+# check index using bt_index_parent_check
+$result = $node->psql('postgres',
+	q(SELECT bt_index_parent_check('oscar', heapallindexed => true)));
+is($result, '0', 'bt_index_parent_check for CIC after removed row');
+
+$in_progress_h->quit;
+
 $node->stop;
 done_testing();