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Re: [RFC] building postgres with meson -v
7+ messages / 2 participants
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* Re: [RFC] building postgres with meson -v
@ 2021-10-31 23:24  Andres Freund <andres@anarazel.de>
  0 siblings, 3 replies; 7+ messages in thread

From: Andres Freund @ 2021-10-31 23:24 UTC (permalink / raw)
  To: pgsql-hackers; +Cc: Thomas Munro <thomas.munro@gmail.com>; Tom Lane <tgl@sss.pgh.pa.us>; Peter Eisentraut <peter_e@gmx.net>; John Naylor <john.naylor@enterprisedb.com>; Andrew Dunstan <andrew@dunslane.net>; Josef Šimánek <josef.simanek@gmail.com>

Hi,

Attached is an updated version of the meson patchset.

Changes:

- support for remaining binaries in src/bin, contrib modules

- nearly all tests, including src/test/modules etc, are integrated.

- quite a few more, but not yet all, optional dependencies (most are
  exercised in the included CI)

- runs tests on SIP enabled macos without needing a prior installation /
  installation is relocatable

- support for building docs.
  I couldn't get dbtoepub work in a vpath style build, so I changed that
  to also use pandoc. No idea if anybody uses the epub rules?

- 32bit x86 [1], 64bit aarch64 builds

- cross-building windows from linux works

- error when building with meson against a source tree with an in-tree
  autoconf build (leads to problems with pg_config.h etc)

- update-unicode, reformat-dat-files, expand-dat-files


Bigger missing pieces:

- pgxs (that's a *hard* one)

- NLS

- test / add support for platforms besides freebsd, linux, macos, windows

- remaining hardcoded configure tests (e.g. ACCEPT_TYPE_ARG*)

- win32 resource files only handled for two binaries, needs to be made
  more compact

- ecpg

- fixing up flex output

- truckloads of polishing

- some tests (e.g. pg_upgrade, because of the upcoming tap conversion,
  other tests that are shell scripts). Some tests are now run
  unconditionally that previously were opt-in.

- what exactly gets installed where

- a "dist" target

- fix "ldap" build on macos


Greetings,

Andres Freund

[1] I had not defined SIZEOF_SIZE_T. Surprisingly that still results in
a successful 64bit build, but not a successful 32bit build.

Attachments:

  [text/x-diff] v5-0001-ci-backend-windows-DONTMERGE-crash-reporting-back.patch (1.4K, ../../20211031232448.wsma7sggfwyxppjc@alap3.anarazel.de/2-v5-0001-ci-backend-windows-DONTMERGE-crash-reporting-back.patch)
  download | inline diff:
From 48d06672d142ffed46faaf0ab4d2fece67534dce Mon Sep 17 00:00:00 2001
From: Andres Freund <andres@anarazel.de>
Date: Thu, 9 Sep 2021 17:49:39 -0700
Subject: [PATCH v5 01/16] ci: backend: windows: DONTMERGE: crash reporting
 (backend).

---
 src/backend/main/main.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/src/backend/main/main.c b/src/backend/main/main.c
index ad84a45e28c..65a325723fd 100644
--- a/src/backend/main/main.c
+++ b/src/backend/main/main.c
@@ -26,6 +26,10 @@
 #include <sys/param.h>
 #endif
 
+#if defined(WIN32)
+#include <crtdbg.h>
+#endif
+
 #if defined(_M_AMD64) && _MSC_VER == 1800
 #include <math.h>
 #include <versionhelpers.h>
@@ -238,7 +242,15 @@ startup_hacks(const char *progname)
 		}
 
 		/* In case of general protection fault, don't show GUI popup box */
-		SetErrorMode(SEM_FAILCRITICALERRORS | SEM_NOGPFAULTERRORBOX);
+		SetErrorMode(SEM_FAILCRITICALERRORS /* | SEM_NOGPFAULTERRORBOX */);
+
+		_CrtSetReportMode(_CRT_ASSERT, _CRTDBG_MODE_FILE | _CRTDBG_MODE_DEBUG);
+		_CrtSetReportMode(_CRT_ERROR, _CRTDBG_MODE_FILE | _CRTDBG_MODE_DEBUG);
+		_CrtSetReportFile(_CRT_ASSERT, _CRTDBG_FILE_STDERR);
+		_CrtSetReportFile(_CRT_ERROR, _CRTDBG_FILE_STDERR);
+#ifndef __MINGW64__
+		_set_abort_behavior(_CALL_REPORTFAULT | _WRITE_ABORT_MSG, _CALL_REPORTFAULT | _WRITE_ABORT_MSG);
+#endif
 
 #if defined(_M_AMD64) && _MSC_VER == 1800
 
-- 
2.23.0.385.gbc12974a89

  [text/x-diff] v5-0002-ci-Add-CI-for-FreeBSD-Linux-MacOS-and-Windows-uti.patch (20.6K, ../../20211031232448.wsma7sggfwyxppjc@alap3.anarazel.de/3-v5-0002-ci-Add-CI-for-FreeBSD-Linux-MacOS-and-Windows-uti.patch)
  download | inline diff:
From 2e4bba81f06ab55fad639e9657b71c5db98b6252 Mon Sep 17 00:00:00 2001
From: Andres Freund <andres@anarazel.de>
Date: Mon, 15 Mar 2021 09:25:15 -0700
Subject: [PATCH v5 02/16] ci: Add CI for FreeBSD, Linux, MacOS and Windows,
 utilizing cirrus-ci.

---
 .cirrus.yml                     | 395 ++++++++++++++++++++++++++++++++
 .dockerignore                   |   3 +
 ci/docker/linux_debian_bullseye |  13 ++
 ci/docker/windows_vs_2019       | 111 +++++++++
 ci/freebsd_gcp_repartition.sh   |  28 +++
 ci/pg_ci_base.conf              |  12 +
 ci/windows_build_config.pl      |  13 ++
 7 files changed, 575 insertions(+)
 create mode 100644 .cirrus.yml
 create mode 100644 .dockerignore
 create mode 100644 ci/docker/linux_debian_bullseye
 create mode 100644 ci/docker/windows_vs_2019
 create mode 100755 ci/freebsd_gcp_repartition.sh
 create mode 100644 ci/pg_ci_base.conf
 create mode 100644 ci/windows_build_config.pl

diff --git a/.cirrus.yml b/.cirrus.yml
new file mode 100644
index 00000000000..f75bdce6dec
--- /dev/null
+++ b/.cirrus.yml
@@ -0,0 +1,395 @@
+env:
+  # accelerate initial clone, but a bit of depth so that concurrent tasks work
+  CIRRUS_CLONE_DEPTH: 100
+  # Useful to be able to analyse what in a script takes long
+  CIRRUS_LOG_TIMESTAMP: true
+  # target to test, for all but windows
+  CHECK: check-world
+  CHECKFLAGS: -Otarget
+  PGCTLTIMEOUT: 120
+  CCACHE_MAXSIZE: "500M"
+  TEMP_CONFIG: ${CIRRUS_WORKING_DIR}/ci/pg_ci_base.conf
+  PG_TEST_EXTRA: kerberos ldap ssl
+
+
+task:
+  name: FreeBSD
+  only_if: $CIRRUS_CHANGE_MESSAGE !=~ '.*\nci-os-only:.*' || $CIRRUS_CHANGE_MESSAGE =~ '.*\nci-os-only:[^\n]*freebsd.*'
+  compute_engine_instance:
+    image_project: pg-vm-images-aio
+    image: family/pg-aio-freebsd-13-0
+    platform: freebsd
+    cpu: 2
+    memory: 2G
+    disk: 50
+  env:
+    CCACHE_DIR: "/tmp/ccache_dir"
+
+  ccache_cache:
+    folder: "/tmp/ccache_dir"
+  sysinfo_script:
+    - export || true
+  sysconfig_script:
+    - sudo sysctl kern.corefile='/tmp/%N.%P.core'
+  repartition_script:
+    - ci/freebsd_gcp_repartition.sh
+  create_user_script:
+    - pw useradd postgres
+    - chown -R postgres:postgres .
+    - mkdir -p /tmp/ccache_dir
+    - chown -R postgres:postgres /tmp/ccache_dir
+
+  configure_script: |
+    su postgres -c './configure \
+      --enable-cassert --enable-debug --enable-tap-tests \
+      --enable-nls \
+      \
+      --with-icu \
+      --with-ldap \
+      --with-libxml \
+      --with-libxslt \
+      \
+      --with-lz4 \
+      --with-pam \
+      --with-perl \
+      --with-python \
+      --with-ssl=openssl \
+      --with-tcl --with-tclconfig=/usr/local/lib/tcl8.6/ \
+      --with-uuid=bsd \
+      \
+      --with-includes=/usr/local/include --with-libs=/usr/local/lib \
+      CC="ccache cc"'
+  build_script:
+    - su postgres -c 'gmake -s -j3 && gmake -s -j3 -C contrib'
+  upload_caches:
+    - ccache
+
+  tests_script:
+    - su postgres -c 'time gmake -s -j2 ${CHECK} ${CHECKFLAGS}'
+
+  on_failure:
+    cores_script: |
+      for corefile in $(find /tmp -name '*.core' 2>/dev/null) ; do
+        binary=$(gdb -quiet -core $corefile -batch -ex 'info auxv' | grep AT_EXECPATH | perl -pe "s/^.*\"(.*)\"\$/\$1/g") ;
+        echo dumping $corefile for $binary ;
+        gdb --batch --quiet -ex "thread apply all bt full" -ex "quit" $binary $corefile;
+      done
+    log_artifacts:
+      path: "**/**.log"
+      type: text/plain
+    regress_diffs_artifacts:
+      path: "**/**.diffs"
+      type: text/plain
+    tap_artifacts:
+      path: "**/regress_log_*"
+      type: text/plain
+
+
+task:
+  name: Linux
+  only_if: $CIRRUS_CHANGE_MESSAGE !=~ '.*\nci-os-only:.*' || $CIRRUS_CHANGE_MESSAGE =~ '.*\nci-os-only:[^\n]*linux.*'
+  compute_engine_instance:
+    image_project: pg-vm-images-aio
+    image: family/pg-aio-bullseye
+    platform: linux
+    cpu: 4
+    memory: 2G
+    nested_virtualization: false
+  env:
+    CCACHE_DIR: "/tmp/ccache_dir"
+    DEBUGINFOD_URLS: "https://debuginfod.debian.net"
+
+  ccache_cache:
+    folder: "/tmp/ccache_dir"
+
+  sysinfo_script:
+    - id
+    - uname -a
+    - cat /proc/cmdline
+    - lsblk
+    - ulimit -a -H
+    - ulimit -a -S
+    - export
+  sysconfig_script:
+    - useradd -m postgres
+    - chown -R postgres:postgres .
+    - mkdir -p /tmp/ccache_dir
+    - chown -R postgres:postgres /tmp/ccache_dir
+    - echo '* - memlock 134217728' > /etc/security/limits.d/postgres.conf
+    - su postgres -c 'ulimit -l -H'
+    - su postgres -c 'ulimit -l -S'
+    - echo '/tmp/%e-%s-%p.core' > /proc/sys/kernel/core_pattern
+
+  configure_script: |
+    su postgres -c './configure \
+      --enable-cassert --enable-debug --enable-tap-tests \
+      --enable-nls \
+      \
+      --with-gssapi \
+      --with-icu \
+      --with-ldap \
+      --with-libxml \
+      --with-libxslt \
+      --with-llvm \
+      --with-lz4 \
+      --with-pam \
+      --with-perl \
+      --with-python \
+      --with-ssl=openssl \
+      --with-systemd \
+      --with-tcl --with-tclconfig=/usr/lib/tcl8.6/ \
+      --with-uuid=e2fs \
+      \
+      CC="ccache gcc" CXX="ccache g++" CLANG="ccache clang" CFLAGS="-O0 -ggdb"'
+  build_script:
+    - su postgres -c 'make -s -j4 && make -s -j4 -C contrib'
+  upload_caches:
+    - ccache
+
+  tests_script: |
+    su postgres -c '\
+      ulimit -c unlimited; \
+      make -s ${CHECK} ${CHECKFLAGS} -j8 \
+      '
+
+  on_failure:
+    cores_script: |
+      for corefile in $(find /tmp -name '*.core' 2>/dev/null) ; do
+        binary=$(gdb -quiet -core $corefile -batch -ex 'info auxv' | grep AT_EXECFN | perl -pe "s/^.*\"(.*)\"\$/\$1/g") ;
+        echo dumping $corefile for $binary ;
+        gdb --batch --quiet -ex "thread apply all bt full" -ex "quit" $binary $corefile ;
+      done
+    log_artifacts:
+      path: "**/**.log"
+      type: text/plain
+    regress_diffs_artifacts:
+      path: "**/**.diffs"
+      type: text/plain
+    tap_artifacts:
+      path: "**/regress_log_*"
+      type: text/plain
+
+
+task:
+  name: macOS
+  only_if: $CIRRUS_CHANGE_MESSAGE !=~ '.*\nci-os-only:.*' || $CIRRUS_CHANGE_MESSAGE =~ '.*\nci-os-only:[^\n]*(macos|darwin|osx).*'
+  osx_instance:
+    image: big-sur-base
+  env:
+    CIRRUS_WORKING_DIR: ${HOME}/pgsql/
+    TEMP_CONFIG: ${CIRRUS_WORKING_DIR}/ci/pg_ci_base.conf
+    CCACHE_DIR: ${HOME}/ccache
+    HOMEBREW_CACHE: ${HOME}/homebrew-cache
+    PERL5LIB: ${HOME}/perl5/lib/perl5
+
+  sysinfo_script:
+    - id
+    - export
+  ccache_cache:
+    folder: ${CCACHE_DIR}
+  homebrew_cache:
+    folder: ${HOMEBREW_CACHE}
+  perl_cache:
+    folder: ~/perl5
+
+  cpan_install_script:
+    - perl -mIPC::Run -e 1 || cpan -T IPC::Run
+    - perl -mIO::Pty -e 1 || cpan -T IO::Pty
+  upload_caches:
+    - perl
+  core_install_script:
+    - sudo chmod 777 /cores
+  homebrew_install_script:
+    - brew install make coreutils ccache icu4c lz4 tcl-tk openldap
+  upload_caches:
+    - homebrew
+
+  configure_script: |
+    LIBS="/usr/local/lib:$LIBS"
+    INCLUDES="/usr/local/include:$INCLUDES"
+
+    INCLUDES="/usr/local/opt/openssl/include:$INCLUDES"
+    LIBS="/usr/local/opt/openssl/lib:$LIBS"
+
+    PKG_CONFIG_PATH="/usr/local/opt/icu4c/lib/pkgconfig:$PKG_CONFIG_PATH"
+    INCLUDES="/usr/local/opt/icu4c/include:$INCLUDES"
+    LIBS="/usr/local/opt/icu4c/lib:$LIBS"
+
+    LIBS="/usr/local/opt/openldap/lib:$LIBS"
+    INCLUDES="/usr/local/opt/openldap/include:$INCLUDES"
+
+    export PKG_CONFIG_PATH
+
+    ./configure \
+      --prefix=$HOME/install \
+      --with-includes="$INCLUDES" \
+      --with-libs="$LIBS" \
+      \
+      --enable-cassert --enable-debug --enable-tap-tests \
+      --enable-nls \
+      \
+      --with-icu \
+      --with-ldap \
+      --with-libxml \
+      --with-libxslt \
+      \
+      --with-lz4 \
+      --with-perl \
+      --with-python \
+      --with-ssl=openssl \
+      --with-tcl --with-tclconfig=/usr/local/opt/tcl-tk/lib/ \
+      --with-uuid=e2fs \
+      \
+      CC="ccache gcc" CFLAGS="-O0 -ggdb"
+  build_script:
+    - gmake -s -j12 && gmake -s -j12 -C contrib
+  upload_caches:
+    - ccache
+
+  tests_script:
+    - ulimit -c unlimited
+    - ulimit -n 1024
+    - gmake -s -j12 ${CHECK} ${CHECKFLAGS}
+
+  on_failure:
+    cores_script: |
+      for corefile in $(find /cores/ -name 'core.*' 2>/dev/null) ; do
+        lldb -c $corefile --batch -o 'thread backtrace all' -o 'quit' ;
+      done
+    log_artifacts:
+      path: "**/**.log"
+      type: text/plain
+    regress_diffs_artifacts:
+      path: "**/**.diffs"
+      type: text/plain
+    tap_artifacts:
+      path: "**/regress_log_*"
+      type: text/plain
+
+
+task:
+  name: Windows
+  only_if: $CIRRUS_CHANGE_MESSAGE !=~ '.*\nci-os-only:.*' || $CIRRUS_CHANGE_MESSAGE =~ '.*\nci-os-only:[^\n]*windows.*'
+  windows_container:
+    dockerfile: ci/docker/windows_vs_2019
+    cpu: 4
+    memory: 4G
+  env:
+    PROVE_FLAGS: -j10
+    # The default working dir is in a directory msbuild complains about
+    CIRRUS_WORKING_DIR: "c:/cirrus"
+    TEMP_CONFIG: ${CIRRUS_WORKING_DIR}/ci/pg_ci_base.conf
+    # Avoid re-installing over and over
+    NO_TEMP_INSTALL: 1
+
+  sysinfo_script:
+    - chcp
+    - systeminfo
+    - powershell -Command get-psdrive -psprovider filesystem
+    - ps: Get-Item -Path 'HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AeDebug'
+    - set
+
+  configure_script:
+    - copy ci\windows_build_config.pl src\tools\msvc\config.pl
+    - vcvarsall x64
+    - perl src/tools/msvc/mkvcbuild.pl
+  build_script:
+    - vcvarsall x64
+    # Disable file tracker, we're never going to rebuild...
+    - msbuild -m /p:TrackFileAccess=false 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
+
+  check_test_script:
+    - perl src/tools/msvc/vcregress.pl check parallel
+  startcreate_test_script:
+    - tmp_install\bin\pg_ctl.exe initdb -D tmp_check\db -l tmp_check\initdb.log
+    - 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
+  plcheck_test_script:
+    - perl src/tools/msvc/vcregress.pl plcheck
+  isolationcheck_test_script:
+    - perl src/tools/msvc/vcregress.pl isolationcheck
+  modulescheck_test_script:
+    - perl src/tools/msvc/vcregress.pl modulescheck
+  contribcheck_test_script:
+    - perl src/tools/msvc/vcregress.pl contribcheck
+  stop_test_script:
+    - tmp_install\bin\pg_ctl.exe stop -D tmp_check\db -l tmp_check\postmaster.log
+  ssl_test_script:
+    - set with_ssl=openssl
+    - perl src/tools/msvc/vcregress.pl taptest .\src\test\ssl\
+  subscriptioncheck_test_script:
+    - perl src/tools/msvc/vcregress.pl taptest .\src\test\subscription\
+  authentication_test_script:
+    - perl src/tools/msvc/vcregress.pl taptest .\src\test\authentication\
+  recoverycheck_test_script:
+    - perl src/tools/msvc/vcregress.pl recoverycheck
+  bincheck_test_script:
+    - perl src/tools/msvc/vcregress.pl bincheck
+  upgradecheck_test_script:
+    - perl src/tools/msvc/vcregress.pl upgradecheck
+  ecpgcheck_test_script:
+    # tries to build additional stuff
+    - vcvarsall x64
+    # References ecpg_regression.proj in the current dir
+    - cd src\tools\msvc
+    - perl vcregress.pl ecpgcheck
+
+  always:
+    cores_script:
+      - cat crashlog.txt || true
+    dump_artifacts:
+      path: "crashlog.txt"
+      type: text/plain
+
+  on_failure:
+    log_artifacts:
+      path: "**/**.log"
+      type: text/plain
+    regress_diffs_artifacts:
+      path: "**/**.diffs"
+      type: text/plain
+    tap_artifacts:
+      path: "**/regress_log_*"
+      type: text/plain
+
+
+task:
+  name: CompilerWarnings
+  depends_on:
+    - Linux
+  # task that did not run count as a success, so we need to recheck Linux' condition here :/
+  only_if: $CIRRUS_CHANGE_MESSAGE !=~ '.*\nci-os-only:.*' || $CIRRUS_CHANGE_MESSAGE =~ '.*\nci-os-only:[^\n]*linux.*'
+  container:
+    dockerfile: ci/docker/linux_debian_bullseye
+  env:
+    CCACHE_SIZE: "4GB"
+    CCACHE_DIR: "/tmp/ccache_dir"
+  ccache_cache:
+    folder: "/tmp/ccache_dir"
+  setup_script:
+    - echo "COPT=-Werror" > src/Makefile.custom
+    - gcc -v
+    - clang -v
+  # gcc with asserts disabled
+  always:
+    gcc_warning_script:
+      - ./configure --cache gcc.cache CC="ccache gcc"
+      - time make -s -j4 clean && time make -s -j4
+  # gcc with asserts enabled
+  always:
+    gcc_a_warning_script:
+      - ./configure --cache gcc.cache --enable-cassert CC="ccache gcc"
+      - time make -s -j4 clean && time make -s -j4
+  # clang with asserts disabled
+  always:
+    clang_warning_script:
+      - ./configure --cache clang.cache CC="ccache clang"
+      - time make -s -j4 clean && time make -s -j4
+  # clang with asserts enabled
+  always:
+    clang_a_warning_script:
+      - ./configure --cache clang.cache --enable-cassert CC="ccache clang"
+      - time make -s -j4 clean && time make -s -j4
diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 00000000000..3fceab2e97b
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,3 @@
+# Ignore everything, except ci/
+*
+!ci/*
diff --git a/ci/docker/linux_debian_bullseye b/ci/docker/linux_debian_bullseye
new file mode 100644
index 00000000000..f6c1782f16b
--- /dev/null
+++ b/ci/docker/linux_debian_bullseye
@@ -0,0 +1,13 @@
+FROM debian:bullseye
+RUN \
+  apt-get -y update && \
+  apt-get -y upgrade && \
+  DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
+    git build-essential gcc g++ libreadline-dev flex bison make perl libipc-run-perl \
+    libio-pty-perl clang llvm-dev libperl-dev libpython3-dev tcl-dev libldap2-dev \
+    libicu-dev docbook-xml docbook-xsl fop libxml2-utils xsltproc krb5-admin-server \
+    krb5-kdc krb5-user slapd ldap-utils libssl-dev pkg-config locales-all liblz4-dev \
+    libsystemd-dev libxml2-dev libxslt1-dev python3-dev libkrb5-dev libpam-dev \
+    libkrb5-*-heimdal uuid-dev gettext \
+    liburing-dev python3-distutils ccache && \
+  apt-get clean
diff --git a/ci/docker/windows_vs_2019 b/ci/docker/windows_vs_2019
new file mode 100644
index 00000000000..a4fcaceae96
--- /dev/null
+++ b/ci/docker/windows_vs_2019
@@ -0,0 +1,111 @@
+# escape=`
+
+# We used to use the visual studio container, but it's too outdated now
+FROM cirrusci/windowsservercore:2019
+
+SHELL ["powershell", "-NoLogo", "-NoProfile", "-Command"]
+
+
+# Install commandline debugger and log all crashes to c:\cirrus\crashlog.txt
+#
+# Done manually as doing this via chocolatey / the installer directly, ends up
+# with a lot of unnecessary chaff, making the layer unnecessarily large.
+RUN `
+    mkdir c:\t ; `
+    cd c:\t ; `
+    `
+    setx PATH \"C:\Windows Kits\10\Debuggers\x64;$Env:PATH\" /m ; `
+    `
+    curl.exe -sSL -o 'windsdksetup.exe' https://download.microsoft.com/download/9/7/9/97982c1d-d687-41be-9dd3-6d01e52ceb68/windowssdk/winsdksetup.exe ; `
+    echo 'starting sdk installation (for debugger)' ; `
+    Start-Process -Wait -FilePath ".\windsdksetup.exe" `
+      -ArgumentList '/Features OptionId.WindowsDesktopDebuggers /layout c:\t\sdk /quiet /norestart /log c:\t\sdk.log' `
+      ; `
+    `
+    Start-Process -Wait -FilePath msiexec.exe `
+      -ArgumentList '/a \"C:\t\sdk\Installers\X64 Debuggers And Tools-x64_en-us.msi\" /qb /log install2.log' `
+    ; `
+    C:\Windows` Kits\10\Debuggers\x64\cdb.exe -version ; `
+    `
+    Set-ItemProperty -Path 'HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AeDebug' -Name 'Debugger' -Value '\"C:\Windows Kits\10\Debuggers\x64\cdb.exe\" -p %ld -e %ld -g -kqm -c \".lines -e; .symfix+ ;.logappend c:\cirrus\crashlog.txt ; !peb; ~*kP ; .logclose ; q \"' ; `
+    New-ItemProperty -Path 'HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AeDebug' -Name 'Auto' -Value 1 -PropertyType DWord ; `
+    Get-ItemProperty -Path 'HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AeDebug' -Name Debugger ; `
+    `
+    cd c:\ ; `
+    Remove-Item C:\t -Force -Recurse
+
+
+# Install perl, python, flex and bison.
+#
+# Done manually as choco takes a lot longer. I think it's download issues with
+# powershell's download stuff? That's wy curl.exe is directly used here at least...
+#
+# Using perl 5.26.3.1 for now, as newer versions don't currently work correctly
+RUN `
+    mkdir c:\t ; `
+    cd c:\t ; `
+    `
+    echo 'adding to path, before setup below, so changes are not overwritten' ; `
+    setx PATH \"C:\strawberry\perl\bin;C:\winflexbison;C:\Program Files\Git\usr\bin;$Env:PATH\" /m ; `
+    `
+    curl.exe -sSL -o perl.zip `
+        https://strawberryperl.com/download/5.26.3.1/strawberry-perl-5.26.3.1-64bit-portable.zip ; `
+    echo 'installing perl' ; `
+    7z.exe x .\perl.zip -xr!c -oc:\strawberry ; `
+    `
+    curl.exe -sSL -o python.exe https://www.python.org/ftp/python/3.10.0/python-3.10.0-amd64.exe ; `
+    echo 'installing python' ; `
+    Start-Process -Wait -FilePath ".\python.exe" `
+      -ArgumentList `
+        '/quiet', 'SimpleInstall=1', 'PrependPath=1', 'CompileAll=1', `
+        'TargetDir=c:\python\', 'InstallAllUsers=1', 'Shortcuts=0', `
+        'Include_docs=0', 'Include_tcltk=0', 'Include_tests=0' `
+      ; `
+    `
+    curl.exe -sSL -o winflexbison.zip `
+        https://github.com/lexxmark/winflexbison/releases/download/v2.5.24/win_flex_bison-2.5.24.zip ; `
+    echo 'installing winflexbison' ; `
+    7z.exe x .\winflexbison.zip -oc:\winflexbison ; `
+    Rename-Item -Path c:\winflexbison\win_flex.exe c:\winflexbison\flex.exe ; `
+    Rename-Item -Path c:\winflexbison\win_bison.exe c:\winflexbison\bison.exe ; `
+    `
+    cd c:\ ; `
+    Remove-Item C:\t -Force -Recurse
+
+
+# Install openssl
+RUN `
+    mkdir c:\t ; `
+    cd c:\t ; `
+    `
+    curl.exe -o openssl-setup.exe -sSL https://slproweb.com/download/Win64OpenSSL-1_1_1L.exe ; `
+    echo 'staring openssl installation' ; `
+    Start-Process -Wait -FilePath ".\openssl-setup.exe" `
+      -ArgumentList '/DIR=c:\openssl\1.1.1l\ /VERYSILENT /SP- /SUPPRESSMSGBOXES' ; `
+    `
+    cd c:\ ; `
+    Remove-Item C:\t -Force -Recurse
+
+
+# Install visual studio
+#
+# Adding VS path to vcvarsall.bat so user of container doesn't need to know the full path
+RUN `
+    mkdir c:\t ; `
+    cd c:\t ; `
+    setx PATH \"c:\BuildTools\VC\Auxiliary\Build;$Env:PATH\" /m ; `
+    `
+    curl.exe -sSL -o c:\t\vs_buildtools.exe https://aka.ms/vs/16/release/vs_buildtools.exe ; `
+    echo 'starting visual studio installation' ; `
+    Start-Process -Wait `
+        -FilePath c:\t\vs_buildtools.exe `
+        -ArgumentList `
+          '--quiet', '--wait', '--norestart', '--nocache', `
+          '--installPath', 'c:\BuildTools', `
+          '--add', 'Microsoft.VisualStudio.Component.VC.Tools.x86.x64', `
+          '--add', 'Microsoft.VisualStudio.Component.Windows10SDK.20348'  ; `
+    `
+    cd c:\ ; `
+    Remove-Item C:\t -Force -Recurse ; `
+    Remove-Item -Force -Recurse ${Env:TEMP}\*; `
+    Remove-Item -Force -Recurse \"${Env:ProgramData}\Package Cache\"
diff --git a/ci/freebsd_gcp_repartition.sh b/ci/freebsd_gcp_repartition.sh
new file mode 100755
index 00000000000..2d5e1738998
--- /dev/null
+++ b/ci/freebsd_gcp_repartition.sh
@@ -0,0 +1,28 @@
+#!/bin/sh
+
+set -e
+set -x
+
+# The default filesystem on freebsd gcp images is very slow to run tests on,
+# due to its 32KB block size
+#
+# XXX: It'd probably better to fix this in the image, using something like
+# https://people.freebsd.org/~lidl/blog/re-root.html
+
+# fix backup partition table after resize
+gpart recover da0
+gpart show da0
+# kill swap, so we can delete a partition
+swapoff -a || true
+# (apparently we can only have 4!?)
+gpart delete -i 3 da0
+gpart add -t freebsd-ufs -l data8k -a 4096 da0
+gpart show da0
+newfs -U -b 8192 /dev/da0p3
+
+# Migrate working directory
+du -hs $CIRRUS_WORKING_DIR
+mv $CIRRUS_WORKING_DIR $CIRRUS_WORKING_DIR.orig
+mkdir $CIRRUS_WORKING_DIR
+mount -o noatime /dev/da0p3 $CIRRUS_WORKING_DIR
+cp -r $CIRRUS_WORKING_DIR.orig/* $CIRRUS_WORKING_DIR/
diff --git a/ci/pg_ci_base.conf b/ci/pg_ci_base.conf
new file mode 100644
index 00000000000..637e3cfb343
--- /dev/null
+++ b/ci/pg_ci_base.conf
@@ -0,0 +1,12 @@
+# Tends to produce too many core files, taking a long time
+restart_after_crash = false
+
+# So that tests using the "manually" started postgres on windows can use
+# prepared statements
+max_prepared_transactions=10
+
+# Settings that make logs more useful
+log_line_prefix='%m [%p][%b][%v:%x] '
+log_checkpoints = true
+log_connections = true
+log_disconnections = true
diff --git a/ci/windows_build_config.pl b/ci/windows_build_config.pl
new file mode 100644
index 00000000000..ba82b13d69a
--- /dev/null
+++ b/ci/windows_build_config.pl
@@ -0,0 +1,13 @@
+use strict;
+use warnings;
+
+our $config;
+
+$config->{"tap_tests"} = 1;
+$config->{"asserts"} = 1;
+
+$config->{"openssl"} = "c:/openssl/1.1.1l/";
+$config->{"perl"} = "c:/strawberry/perl/";
+$config->{"python"} = "c:/python/";
+
+1;
-- 
2.23.0.385.gbc12974a89

  [text/x-diff] v5-0003-plpython-Drop-support-python2.patch (262.3K, ../../20211031232448.wsma7sggfwyxppjc@alap3.anarazel.de/4-v5-0003-plpython-Drop-support-python2.patch)
  download | inline diff:
From 96cb64239dcee91060a038bbad47047bd8b1b1c3 Mon Sep 17 00:00:00 2001
From: Andres Freund <andres@anarazel.de>
Date: Sun, 3 Oct 2021 10:56:21 -0700
Subject: [PATCH v5 03/16] plpython: Drop support python2.

Author:
Reviewed-By:
Discussion: https://postgr.es/m/20211031184548.g4sxfe47n2kyi55r@alap3.anarazel.de
Backpatch:
---
 .cirrus.yml                                   |    3 +-
 config/python.m4                              |    4 +-
 configure                                     |    4 +-
 contrib/hstore_plpython/Makefile              |   10 +-
 .../expected/hstore_plpython.out              |   22 +-
 .../hstore_plpython2u--1.0.sql                |   19 -
 .../hstore_plpython/hstore_plpython2u.control |    6 -
 .../hstore_plpython/hstore_plpythonu--1.0.sql |   19 -
 .../hstore_plpython/hstore_plpythonu.control  |    6 -
 .../hstore_plpython/sql/hstore_plpython.sql   |   18 +-
 contrib/jsonb_plpython/Makefile               |   11 +-
 .../expected/jsonb_plpython.out               |   32 +-
 .../jsonb_plpython/jsonb_plpython2u--1.0.sql  |   19 -
 .../jsonb_plpython/jsonb_plpython2u.control   |    6 -
 .../jsonb_plpython/jsonb_plpythonu--1.0.sql   |   19 -
 .../jsonb_plpython/jsonb_plpythonu.control    |    6 -
 contrib/jsonb_plpython/sql/jsonb_plpython.sql |   30 +-
 contrib/ltree_plpython/Makefile               |   10 +-
 .../expected/ltree_plpython.out               |   10 +-
 .../ltree_plpython/ltree_plpython2u--1.0.sql  |   12 -
 .../ltree_plpython/ltree_plpython2u.control   |    6 -
 .../ltree_plpython/ltree_plpythonu--1.0.sql   |   12 -
 .../ltree_plpython/ltree_plpythonu.control    |    6 -
 contrib/ltree_plpython/sql/ltree_plpython.sql |    8 +-
 src/pl/plpython/Makefile                      |   14 -
 src/pl/plpython/expected/plpython_call.out    |   12 +-
 .../plpython/expected/plpython_composite.out  |   32 +-
 src/pl/plpython/expected/plpython_do.out      |    8 +-
 src/pl/plpython/expected/plpython_drop.out    |    3 +-
 src/pl/plpython/expected/plpython_ereport.out |   22 +-
 src/pl/plpython/expected/plpython_error.out   |   52 +-
 src/pl/plpython/expected/plpython_error_5.out |  447 --------
 src/pl/plpython/expected/plpython_global.out  |    6 +-
 src/pl/plpython/expected/plpython_import.out  |    8 +-
 src/pl/plpython/expected/plpython_newline.out |    6 +-
 src/pl/plpython/expected/plpython_params.out  |    8 +-
 src/pl/plpython/expected/plpython_quote.out   |    2 +-
 src/pl/plpython/expected/plpython_record.out  |   18 +-
 src/pl/plpython/expected/plpython_setof.out   |   18 +-
 src/pl/plpython/expected/plpython_spi.out     |   48 +-
 .../expected/plpython_subtransaction.out      |   38 +-
 src/pl/plpython/expected/plpython_test.out    |   12 +-
 .../expected/plpython_transaction.out         |   24 +-
 src/pl/plpython/expected/plpython_trigger.out |   46 +-
 src/pl/plpython/expected/plpython_types.out   |  230 ++--
 src/pl/plpython/expected/plpython_types_3.out | 1009 -----------------
 src/pl/plpython/expected/plpython_unicode.out |   16 +-
 src/pl/plpython/expected/plpython_void.out    |    6 +-
 src/pl/plpython/plpy_cursorobject.c           |    2 +-
 src/pl/plpython/plpy_main.c                   |   55 +-
 src/pl/plpython/plpy_plpymodule.c             |   16 -
 src/pl/plpython/plpy_plpymodule.h             |    2 -
 src/pl/plpython/plpy_resultobject.c           |    8 -
 src/pl/plpython/plpy_typeio.c                 |    8 -
 src/pl/plpython/plpy_util.c                   |    3 -
 src/pl/plpython/plpy_util.h                   |    2 -
 src/pl/plpython/plpython.h                    |   13 +-
 src/pl/plpython/plpython2u--1.0.sql           |   17 -
 src/pl/plpython/plpython2u.control            |    7 -
 src/pl/plpython/plpythonu--1.0.sql            |   17 -
 src/pl/plpython/plpythonu.control             |    7 -
 src/pl/plpython/regress-python3-mangle.mk     |   38 -
 src/pl/plpython/sql/plpython_call.sql         |   12 +-
 src/pl/plpython/sql/plpython_composite.sql    |   32 +-
 src/pl/plpython/sql/plpython_do.sql           |    6 +-
 src/pl/plpython/sql/plpython_drop.sql         |    4 +-
 src/pl/plpython/sql/plpython_ereport.sql      |   22 +-
 src/pl/plpython/sql/plpython_error.sql        |   48 +-
 src/pl/plpython/sql/plpython_global.sql       |    6 +-
 src/pl/plpython/sql/plpython_import.sql       |    8 +-
 src/pl/plpython/sql/plpython_newline.sql      |    6 +-
 src/pl/plpython/sql/plpython_params.sql       |    8 +-
 src/pl/plpython/sql/plpython_quote.sql        |    2 +-
 src/pl/plpython/sql/plpython_record.sql       |   18 +-
 src/pl/plpython/sql/plpython_setof.sql        |   18 +-
 src/pl/plpython/sql/plpython_spi.sql          |   48 +-
 .../plpython/sql/plpython_subtransaction.sql  |   38 +-
 src/pl/plpython/sql/plpython_test.sql         |   12 +-
 src/pl/plpython/sql/plpython_transaction.sql  |   22 +-
 src/pl/plpython/sql/plpython_trigger.sql      |   46 +-
 src/pl/plpython/sql/plpython_types.sql        |  106 +-
 src/pl/plpython/sql/plpython_unicode.sql      |   16 +-
 src/pl/plpython/sql/plpython_void.sql         |    6 +-
 83 files changed, 629 insertions(+), 2433 deletions(-)
 delete mode 100644 contrib/hstore_plpython/hstore_plpython2u--1.0.sql
 delete mode 100644 contrib/hstore_plpython/hstore_plpython2u.control
 delete mode 100644 contrib/hstore_plpython/hstore_plpythonu--1.0.sql
 delete mode 100644 contrib/hstore_plpython/hstore_plpythonu.control
 delete mode 100644 contrib/jsonb_plpython/jsonb_plpython2u--1.0.sql
 delete mode 100644 contrib/jsonb_plpython/jsonb_plpython2u.control
 delete mode 100644 contrib/jsonb_plpython/jsonb_plpythonu--1.0.sql
 delete mode 100644 contrib/jsonb_plpython/jsonb_plpythonu.control
 delete mode 100644 contrib/ltree_plpython/ltree_plpython2u--1.0.sql
 delete mode 100644 contrib/ltree_plpython/ltree_plpython2u.control
 delete mode 100644 contrib/ltree_plpython/ltree_plpythonu--1.0.sql
 delete mode 100644 contrib/ltree_plpython/ltree_plpythonu.control
 delete mode 100644 src/pl/plpython/expected/plpython_error_5.out
 delete mode 100644 src/pl/plpython/expected/plpython_types_3.out
 delete mode 100644 src/pl/plpython/plpython2u--1.0.sql
 delete mode 100644 src/pl/plpython/plpython2u.control
 delete mode 100644 src/pl/plpython/plpythonu--1.0.sql
 delete mode 100644 src/pl/plpython/plpythonu.control
 delete mode 100644 src/pl/plpython/regress-python3-mangle.mk

diff --git a/.cirrus.yml b/.cirrus.yml
index f75bdce6dec..2bb6f4a14d7 100644
--- a/.cirrus.yml
+++ b/.cirrus.yml
@@ -240,7 +240,8 @@ task:
       --with-tcl --with-tclconfig=/usr/local/opt/tcl-tk/lib/ \
       --with-uuid=e2fs \
       \
-      CC="ccache gcc" CFLAGS="-O0 -ggdb"
+      CC="ccache gcc" CFLAGS="-O0 -ggdb" \
+      PYTHON=python3
   build_script:
     - gmake -s -j12 && gmake -s -j12 -C contrib
   upload_caches:
diff --git a/config/python.m4 b/config/python.m4
index d41aeb2876a..f51d23c3d43 100644
--- a/config/python.m4
+++ b/config/python.m4
@@ -37,8 +37,8 @@ python_majorversion=`echo "$python_fullversion" | sed '[s/^\([0-9]*\).*/\1/]'`
 python_minorversion=`echo "$python_fullversion" | sed '[s/^[0-9]*\.\([0-9]*\).*/\1/]'`
 python_version=`echo "$python_fullversion" | sed '[s/^\([0-9]*\.[0-9]*\).*/\1/]'`
 # Reject unsupported Python versions as soon as practical.
-if test "$python_majorversion" -lt 3 -a "$python_minorversion" -lt 6; then
-  AC_MSG_ERROR([Python version $python_version is too old (version 2.6 or later is required)])
+if test "$python_majorversion" -lt 3; then
+  AC_MSG_ERROR([Python version $python_version is too old (version 3 or later is required)])
 fi
 
 AC_MSG_CHECKING([for Python distutils module])
diff --git a/configure b/configure
index 4ffefe46552..1b5fd12a432 100755
--- a/configure
+++ b/configure
@@ -10123,8 +10123,8 @@ python_majorversion=`echo "$python_fullversion" | sed 's/^\([0-9]*\).*/\1/'`
 python_minorversion=`echo "$python_fullversion" | sed 's/^[0-9]*\.\([0-9]*\).*/\1/'`
 python_version=`echo "$python_fullversion" | sed 's/^\([0-9]*\.[0-9]*\).*/\1/'`
 # Reject unsupported Python versions as soon as practical.
-if test "$python_majorversion" -lt 3 -a "$python_minorversion" -lt 6; then
-  as_fn_error $? "Python version $python_version is too old (version 2.6 or later is required)" "$LINENO" 5
+if test "$python_majorversion" -lt 3; then
+  as_fn_error $? "Python version $python_version is too old (version 3 or later is required)" "$LINENO" 5
 fi
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for Python distutils module" >&5
diff --git a/contrib/hstore_plpython/Makefile b/contrib/hstore_plpython/Makefile
index 6af097ae68b..9d88cda1d0f 100644
--- a/contrib/hstore_plpython/Makefile
+++ b/contrib/hstore_plpython/Makefile
@@ -6,11 +6,10 @@ OBJS = \
 	hstore_plpython.o
 PGFILEDESC = "hstore_plpython - hstore transform for plpython"
 
-EXTENSION = hstore_plpythonu hstore_plpython2u hstore_plpython3u
-DATA = hstore_plpythonu--1.0.sql hstore_plpython2u--1.0.sql hstore_plpython3u--1.0.sql
+EXTENSION = hstore_plpython3u
+DATA = hstore_plpython3u--1.0.sql
 
 REGRESS = hstore_plpython
-REGRESS_PLPYTHON3_MANGLE := $(REGRESS)
 
 PG_CPPFLAGS = $(python_includespec) -DPLPYTHON_LIBNAME='"plpython$(python_majorversion)"'
 
@@ -37,9 +36,4 @@ SHLIB_LINK += $(python_libspec) $(python_additional_libs)
 endif
 
 REGRESS_OPTS += --load-extension=hstore
-ifeq ($(python_majorversion),2)
-REGRESS_OPTS += --load-extension=plpythonu --load-extension=hstore_plpythonu
-endif
 EXTRA_INSTALL += contrib/hstore
-
-include $(top_srcdir)/src/pl/plpython/regress-python3-mangle.mk
diff --git a/contrib/hstore_plpython/expected/hstore_plpython.out b/contrib/hstore_plpython/expected/hstore_plpython.out
index ecf1dd61bc1..bf238701fec 100644
--- a/contrib/hstore_plpython/expected/hstore_plpython.out
+++ b/contrib/hstore_plpython/expected/hstore_plpython.out
@@ -1,8 +1,8 @@
-CREATE EXTENSION hstore_plpython2u CASCADE;
-NOTICE:  installing required extension "plpython2u"
+CREATE EXTENSION hstore_plpython3u CASCADE;
+NOTICE:  installing required extension "plpython3u"
 -- test hstore -> python
 CREATE FUNCTION test1(val hstore) RETURNS int
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE hstore
 AS $$
 assert isinstance(val, dict)
@@ -18,7 +18,7 @@ INFO:  [('aa', 'bb'), ('cc', None)]
 
 -- the same with the versioned language name
 CREATE FUNCTION test1n(val hstore) RETURNS int
-LANGUAGE plpython2u
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE hstore
 AS $$
 assert isinstance(val, dict)
@@ -34,7 +34,7 @@ INFO:  [('aa', 'bb'), ('cc', None)]
 
 -- test hstore[] -> python
 CREATE FUNCTION test1arr(val hstore[]) RETURNS int
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE hstore
 AS $$
 assert(val == [{'aa': 'bb', 'cc': None}, {'dd': 'ee'}])
@@ -48,7 +48,7 @@ SELECT test1arr(array['aa=>bb, cc=>NULL'::hstore, 'dd=>ee']);
 
 -- test python -> hstore
 CREATE FUNCTION test2(a int, b text) RETURNS hstore
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE hstore
 AS $$
 val = {'a': a, 'b': b, 'c': None}
@@ -65,14 +65,14 @@ SELECT test2(1, 'boo');
 CREATE OR REPLACE FUNCTION public.test2(a integer, b text)
  RETURNS hstore
  TRANSFORM FOR TYPE hstore
- LANGUAGE plpythonu
+ LANGUAGE plpython3u
 AS $function$
 val = {'a': a, 'b': b, 'c': None}
 return val
 $function$
 -- test python -> hstore[]
 CREATE FUNCTION test2arr() RETURNS hstore[]
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE hstore
 AS $$
 val = [{'a': 1, 'b': 'boo', 'c': None}, {'d': 2}]
@@ -87,7 +87,7 @@ SELECT test2arr();
 -- test python -> domain over hstore
 CREATE DOMAIN hstore_foo AS hstore CHECK(VALUE ? 'foo');
 CREATE FUNCTION test2dom(fn text) RETURNS hstore_foo
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE hstore
 AS $$
 return {'a': 1, fn: 'boo', 'c': None}
@@ -104,7 +104,7 @@ CONTEXT:  while creating return value
 PL/Python function "test2dom"
 -- test as part of prepare/execute
 CREATE FUNCTION test3() RETURNS void
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE hstore
 AS $$
 rv = plpy.execute("SELECT 'aa=>bb, cc=>NULL'::hstore AS col1")
@@ -131,7 +131,7 @@ SELECT * FROM test1;
 (1 row)
 
 CREATE FUNCTION test4() RETURNS trigger
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE hstore
 AS $$
 assert(TD["new"] == {'a': 1, 'b': {'aa': 'bb', 'cc': None}})
diff --git a/contrib/hstore_plpython/hstore_plpython2u--1.0.sql b/contrib/hstore_plpython/hstore_plpython2u--1.0.sql
deleted file mode 100644
index 800765f3f0c..00000000000
--- a/contrib/hstore_plpython/hstore_plpython2u--1.0.sql
+++ /dev/null
@@ -1,19 +0,0 @@
-/* contrib/hstore_plpython/hstore_plpython2u--1.0.sql */
-
--- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION hstore_plpython2u" to load this file. \quit
-
-CREATE FUNCTION hstore_to_plpython2(val internal) RETURNS internal
-LANGUAGE C STRICT IMMUTABLE
-AS 'MODULE_PATHNAME', 'hstore_to_plpython';
-
-CREATE FUNCTION plpython2_to_hstore(val internal) RETURNS hstore
-LANGUAGE C STRICT IMMUTABLE
-AS 'MODULE_PATHNAME', 'plpython_to_hstore';
-
-CREATE TRANSFORM FOR hstore LANGUAGE plpython2u (
-    FROM SQL WITH FUNCTION hstore_to_plpython2(internal),
-    TO SQL WITH FUNCTION plpython2_to_hstore(internal)
-);
-
-COMMENT ON TRANSFORM FOR hstore LANGUAGE plpython2u IS 'transform between hstore and Python dict';
diff --git a/contrib/hstore_plpython/hstore_plpython2u.control b/contrib/hstore_plpython/hstore_plpython2u.control
deleted file mode 100644
index ed905671123..00000000000
--- a/contrib/hstore_plpython/hstore_plpython2u.control
+++ /dev/null
@@ -1,6 +0,0 @@
-# hstore_plpython2u extension
-comment = 'transform between hstore and plpython2u'
-default_version = '1.0'
-module_pathname = '$libdir/hstore_plpython2'
-relocatable = true
-requires = 'hstore,plpython2u'
diff --git a/contrib/hstore_plpython/hstore_plpythonu--1.0.sql b/contrib/hstore_plpython/hstore_plpythonu--1.0.sql
deleted file mode 100644
index 52832912abc..00000000000
--- a/contrib/hstore_plpython/hstore_plpythonu--1.0.sql
+++ /dev/null
@@ -1,19 +0,0 @@
-/* contrib/hstore_plpython/hstore_plpythonu--1.0.sql */
-
--- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION hstore_plpythonu" to load this file. \quit
-
-CREATE FUNCTION hstore_to_plpython(val internal) RETURNS internal
-LANGUAGE C STRICT IMMUTABLE
-AS 'MODULE_PATHNAME';
-
-CREATE FUNCTION plpython_to_hstore(val internal) RETURNS hstore
-LANGUAGE C STRICT IMMUTABLE
-AS 'MODULE_PATHNAME';
-
-CREATE TRANSFORM FOR hstore LANGUAGE plpythonu (
-    FROM SQL WITH FUNCTION hstore_to_plpython(internal),
-    TO SQL WITH FUNCTION plpython_to_hstore(internal)
-);
-
-COMMENT ON TRANSFORM FOR hstore LANGUAGE plpythonu IS 'transform between hstore and Python dict';
diff --git a/contrib/hstore_plpython/hstore_plpythonu.control b/contrib/hstore_plpython/hstore_plpythonu.control
deleted file mode 100644
index 8e9b35e43bf..00000000000
--- a/contrib/hstore_plpython/hstore_plpythonu.control
+++ /dev/null
@@ -1,6 +0,0 @@
-# hstore_plpythonu extension
-comment = 'transform between hstore and plpythonu'
-default_version = '1.0'
-module_pathname = '$libdir/hstore_plpython2'
-relocatable = true
-requires = 'hstore,plpythonu'
diff --git a/contrib/hstore_plpython/sql/hstore_plpython.sql b/contrib/hstore_plpython/sql/hstore_plpython.sql
index b6d98b7dd53..a9cfbbe13e2 100644
--- a/contrib/hstore_plpython/sql/hstore_plpython.sql
+++ b/contrib/hstore_plpython/sql/hstore_plpython.sql
@@ -1,9 +1,9 @@
-CREATE EXTENSION hstore_plpython2u CASCADE;
+CREATE EXTENSION hstore_plpython3u CASCADE;
 
 
 -- test hstore -> python
 CREATE FUNCTION test1(val hstore) RETURNS int
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE hstore
 AS $$
 assert isinstance(val, dict)
@@ -16,7 +16,7 @@ SELECT test1('aa=>bb, cc=>NULL'::hstore);
 
 -- the same with the versioned language name
 CREATE FUNCTION test1n(val hstore) RETURNS int
-LANGUAGE plpython2u
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE hstore
 AS $$
 assert isinstance(val, dict)
@@ -29,7 +29,7 @@ SELECT test1n('aa=>bb, cc=>NULL'::hstore);
 
 -- test hstore[] -> python
 CREATE FUNCTION test1arr(val hstore[]) RETURNS int
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE hstore
 AS $$
 assert(val == [{'aa': 'bb', 'cc': None}, {'dd': 'ee'}])
@@ -41,7 +41,7 @@ SELECT test1arr(array['aa=>bb, cc=>NULL'::hstore, 'dd=>ee']);
 
 -- test python -> hstore
 CREATE FUNCTION test2(a int, b text) RETURNS hstore
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE hstore
 AS $$
 val = {'a': a, 'b': b, 'c': None}
@@ -56,7 +56,7 @@ SELECT test2(1, 'boo');
 
 -- test python -> hstore[]
 CREATE FUNCTION test2arr() RETURNS hstore[]
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE hstore
 AS $$
 val = [{'a': 1, 'b': 'boo', 'c': None}, {'d': 2}]
@@ -70,7 +70,7 @@ SELECT test2arr();
 CREATE DOMAIN hstore_foo AS hstore CHECK(VALUE ? 'foo');
 
 CREATE FUNCTION test2dom(fn text) RETURNS hstore_foo
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE hstore
 AS $$
 return {'a': 1, fn: 'boo', 'c': None}
@@ -82,7 +82,7 @@ SELECT test2dom('bar');  -- fail
 
 -- test as part of prepare/execute
 CREATE FUNCTION test3() RETURNS void
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE hstore
 AS $$
 rv = plpy.execute("SELECT 'aa=>bb, cc=>NULL'::hstore AS col1")
@@ -103,7 +103,7 @@ INSERT INTO test1 VALUES (1, 'aa=>bb, cc=>NULL');
 SELECT * FROM test1;
 
 CREATE FUNCTION test4() RETURNS trigger
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE hstore
 AS $$
 assert(TD["new"] == {'a': 1, 'b': {'aa': 'bb', 'cc': None}})
diff --git a/contrib/jsonb_plpython/Makefile b/contrib/jsonb_plpython/Makefile
index ca767418943..6333ea0bbaf 100644
--- a/contrib/jsonb_plpython/Makefile
+++ b/contrib/jsonb_plpython/Makefile
@@ -8,11 +8,10 @@ PGFILEDESC = "jsonb_plpython - transform between jsonb and plpythonu"
 
 PG_CPPFLAGS = -I$(top_srcdir)/src/pl/plpython $(python_includespec) -DPLPYTHON_LIBNAME='"plpython$(python_majorversion)"'
 
-EXTENSION = jsonb_plpythonu jsonb_plpython2u jsonb_plpython3u
-DATA = jsonb_plpythonu--1.0.sql jsonb_plpython2u--1.0.sql jsonb_plpython3u--1.0.sql
+EXTENSION = jsonb_plpython3u
+DATA = jsonb_plpython3u--1.0.sql
 
 REGRESS = jsonb_plpython
-REGRESS_PLPYTHON3_MANGLE := $(REGRESS)
 
 ifdef USE_PGXS
 PG_CONFIG = pg_config
@@ -33,9 +32,3 @@ else
 rpathdir = $(python_libdir)
 SHLIB_LINK += $(python_libspec) $(python_additional_libs)
 endif
-
-ifeq ($(python_majorversion),2)
-REGRESS_OPTS += --load-extension=plpythonu --load-extension=jsonb_plpythonu
-endif
-
-include $(top_srcdir)/src/pl/plpython/regress-python3-mangle.mk
diff --git a/contrib/jsonb_plpython/expected/jsonb_plpython.out b/contrib/jsonb_plpython/expected/jsonb_plpython.out
index b491fe9cc68..cac963de69c 100644
--- a/contrib/jsonb_plpython/expected/jsonb_plpython.out
+++ b/contrib/jsonb_plpython/expected/jsonb_plpython.out
@@ -1,8 +1,8 @@
-CREATE EXTENSION jsonb_plpython2u CASCADE;
-NOTICE:  installing required extension "plpython2u"
+CREATE EXTENSION jsonb_plpython3u CASCADE;
+NOTICE:  installing required extension "plpython3u"
 -- test jsonb -> python dict
 CREATE FUNCTION test1(val jsonb) RETURNS int
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE jsonb
 AS $$
 assert isinstance(val, dict)
@@ -18,7 +18,7 @@ SELECT test1('{"a": 1, "c": "NULL"}'::jsonb);
 -- test jsonb -> python dict
 -- complex dict with dicts as value
 CREATE FUNCTION test1complex(val jsonb) RETURNS int
-LANGUAGE plpython2u
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE jsonb
 AS $$
 assert isinstance(val, dict)
@@ -34,7 +34,7 @@ SELECT test1complex('{"d": {"d": 1}}'::jsonb);
 -- test jsonb[] -> python dict
 -- dict with array as value
 CREATE FUNCTION test1arr(val jsonb) RETURNS int
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE jsonb
 AS $$
 assert isinstance(val, dict)
@@ -50,7 +50,7 @@ SELECT test1arr('{"d":[12, 1]}'::jsonb);
 -- test jsonb[] -> python list
 -- simple list
 CREATE FUNCTION test2arr(val jsonb) RETURNS int
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE jsonb
 AS $$
 assert isinstance(val, list)
@@ -66,7 +66,7 @@ SELECT test2arr('[12, 1]'::jsonb);
 -- test jsonb[] -> python list
 -- array of dicts
 CREATE FUNCTION test3arr(val jsonb) RETURNS int
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE jsonb
 AS $$
 assert isinstance(val, list)
@@ -81,7 +81,7 @@ SELECT test3arr('[{"a": 1, "b": 2}, {"c": 3,"d": 4}]'::jsonb);
 
 -- test jsonb int -> python int
 CREATE FUNCTION test1int(val jsonb) RETURNS int
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE jsonb
 AS $$
 assert(val == 1)
@@ -95,7 +95,7 @@ SELECT test1int('1'::jsonb);
 
 -- test jsonb string -> python string
 CREATE FUNCTION test1string(val jsonb) RETURNS text
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE jsonb
 AS $$
 assert(val == "a")
@@ -109,7 +109,7 @@ SELECT test1string('"a"'::jsonb);
 
 -- test jsonb null -> python None
 CREATE FUNCTION test1null(val jsonb) RETURNS int
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE jsonb
 AS $$
 assert(val == None)
@@ -123,7 +123,7 @@ SELECT test1null('null'::jsonb);
 
 -- test python -> jsonb
 CREATE FUNCTION roundtrip(val jsonb) RETURNS jsonb
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE jsonb
 as $$
 return val
@@ -238,7 +238,7 @@ SELECT roundtrip('["string", "string2"]'::jsonb);
 
 -- complex numbers -> jsonb
 CREATE FUNCTION testComplexNumbers() RETURNS jsonb
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE jsonb
 AS $$
 x = 1 + 2j
@@ -250,7 +250,7 @@ CONTEXT:  while creating return value
 PL/Python function "testcomplexnumbers"
 -- range -> jsonb
 CREATE FUNCTION testRange() RETURNS jsonb
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE jsonb
 AS $$
 x = range(3)
@@ -264,7 +264,7 @@ SELECT testRange();
 
 -- 0xff -> jsonb
 CREATE FUNCTION testDecimal() RETURNS jsonb
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE jsonb
 AS $$
 x = 0xff
@@ -278,7 +278,7 @@ SELECT testDecimal();
 
 -- tuple -> jsonb
 CREATE FUNCTION testTuple() RETURNS jsonb
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE jsonb
 AS $$
 x = (1, 'String', None)
@@ -292,7 +292,7 @@ SELECT testTuple();
 
 -- interesting dict -> jsonb
 CREATE FUNCTION test_dict1() RETURNS jsonb
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE jsonb
 AS $$
 x = {"a": 1, None: 2, 33: 3}
diff --git a/contrib/jsonb_plpython/jsonb_plpython2u--1.0.sql b/contrib/jsonb_plpython/jsonb_plpython2u--1.0.sql
deleted file mode 100644
index 2526d14ee19..00000000000
--- a/contrib/jsonb_plpython/jsonb_plpython2u--1.0.sql
+++ /dev/null
@@ -1,19 +0,0 @@
-/* contrib/jsonb_plpython/jsonb_plpython2u--1.0.sql */
-
--- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION jsonb_plpython2u" to load this file. \quit
-
-CREATE FUNCTION jsonb_to_plpython2(val internal) RETURNS internal
-LANGUAGE C STRICT IMMUTABLE
-AS 'MODULE_PATHNAME', 'jsonb_to_plpython';
-
-CREATE FUNCTION plpython2_to_jsonb(val internal) RETURNS jsonb
-LANGUAGE C STRICT IMMUTABLE
-AS 'MODULE_PATHNAME', 'plpython_to_jsonb';
-
-CREATE TRANSFORM FOR jsonb LANGUAGE plpython2u (
-    FROM SQL WITH FUNCTION jsonb_to_plpython2(internal),
-    TO SQL WITH FUNCTION plpython2_to_jsonb(internal)
-);
-
-COMMENT ON TRANSFORM FOR jsonb LANGUAGE plpython2u IS 'transform between jsonb and Python';
diff --git a/contrib/jsonb_plpython/jsonb_plpython2u.control b/contrib/jsonb_plpython/jsonb_plpython2u.control
deleted file mode 100644
index d26368316b6..00000000000
--- a/contrib/jsonb_plpython/jsonb_plpython2u.control
+++ /dev/null
@@ -1,6 +0,0 @@
-# jsonb_plpython2u extension
-comment = 'transform between jsonb and plpython2u'
-default_version = '1.0'
-module_pathname = '$libdir/jsonb_plpython2'
-relocatable = true
-requires = 'plpython2u'
diff --git a/contrib/jsonb_plpython/jsonb_plpythonu--1.0.sql b/contrib/jsonb_plpython/jsonb_plpythonu--1.0.sql
deleted file mode 100644
index 3fa89885a63..00000000000
--- a/contrib/jsonb_plpython/jsonb_plpythonu--1.0.sql
+++ /dev/null
@@ -1,19 +0,0 @@
-/* contrib/jsonb_plpython/jsonb_plpythonu--1.0.sql */
-
--- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION jsonb_plpythonu" to load this file. \quit
-
-CREATE FUNCTION jsonb_to_plpython(val internal) RETURNS internal
-LANGUAGE C STRICT IMMUTABLE
-AS 'MODULE_PATHNAME';
-
-CREATE FUNCTION plpython_to_jsonb(val internal) RETURNS jsonb
-LANGUAGE C STRICT IMMUTABLE
-AS 'MODULE_PATHNAME';
-
-CREATE TRANSFORM FOR jsonb LANGUAGE plpythonu (
-    FROM SQL WITH FUNCTION jsonb_to_plpython(internal),
-    TO SQL WITH FUNCTION plpython_to_jsonb(internal)
-);
-
-COMMENT ON TRANSFORM FOR jsonb LANGUAGE plpythonu IS 'transform between jsonb and Python';
diff --git a/contrib/jsonb_plpython/jsonb_plpythonu.control b/contrib/jsonb_plpython/jsonb_plpythonu.control
deleted file mode 100644
index 6f8fa4f184b..00000000000
--- a/contrib/jsonb_plpython/jsonb_plpythonu.control
+++ /dev/null
@@ -1,6 +0,0 @@
-# jsonb_plpythonu extension
-comment = 'transform between jsonb and plpythonu'
-default_version = '1.0'
-module_pathname = '$libdir/jsonb_plpython2'
-relocatable = true
-requires = 'plpythonu'
diff --git a/contrib/jsonb_plpython/sql/jsonb_plpython.sql b/contrib/jsonb_plpython/sql/jsonb_plpython.sql
index 2ee1bca0a98..29dc33279a0 100644
--- a/contrib/jsonb_plpython/sql/jsonb_plpython.sql
+++ b/contrib/jsonb_plpython/sql/jsonb_plpython.sql
@@ -1,8 +1,8 @@
-CREATE EXTENSION jsonb_plpython2u CASCADE;
+CREATE EXTENSION jsonb_plpython3u CASCADE;
 
 -- test jsonb -> python dict
 CREATE FUNCTION test1(val jsonb) RETURNS int
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE jsonb
 AS $$
 assert isinstance(val, dict)
@@ -15,7 +15,7 @@ SELECT test1('{"a": 1, "c": "NULL"}'::jsonb);
 -- test jsonb -> python dict
 -- complex dict with dicts as value
 CREATE FUNCTION test1complex(val jsonb) RETURNS int
-LANGUAGE plpython2u
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE jsonb
 AS $$
 assert isinstance(val, dict)
@@ -29,7 +29,7 @@ SELECT test1complex('{"d": {"d": 1}}'::jsonb);
 -- test jsonb[] -> python dict
 -- dict with array as value
 CREATE FUNCTION test1arr(val jsonb) RETURNS int
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE jsonb
 AS $$
 assert isinstance(val, dict)
@@ -42,7 +42,7 @@ SELECT test1arr('{"d":[12, 1]}'::jsonb);
 -- test jsonb[] -> python list
 -- simple list
 CREATE FUNCTION test2arr(val jsonb) RETURNS int
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE jsonb
 AS $$
 assert isinstance(val, list)
@@ -55,7 +55,7 @@ SELECT test2arr('[12, 1]'::jsonb);
 -- test jsonb[] -> python list
 -- array of dicts
 CREATE FUNCTION test3arr(val jsonb) RETURNS int
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE jsonb
 AS $$
 assert isinstance(val, list)
@@ -67,7 +67,7 @@ SELECT test3arr('[{"a": 1, "b": 2}, {"c": 3,"d": 4}]'::jsonb);
 
 -- test jsonb int -> python int
 CREATE FUNCTION test1int(val jsonb) RETURNS int
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE jsonb
 AS $$
 assert(val == 1)
@@ -78,7 +78,7 @@ SELECT test1int('1'::jsonb);
 
 -- test jsonb string -> python string
 CREATE FUNCTION test1string(val jsonb) RETURNS text
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE jsonb
 AS $$
 assert(val == "a")
@@ -89,7 +89,7 @@ SELECT test1string('"a"'::jsonb);
 
 -- test jsonb null -> python None
 CREATE FUNCTION test1null(val jsonb) RETURNS int
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE jsonb
 AS $$
 assert(val == None)
@@ -100,7 +100,7 @@ SELECT test1null('null'::jsonb);
 
 -- test python -> jsonb
 CREATE FUNCTION roundtrip(val jsonb) RETURNS jsonb
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE jsonb
 as $$
 return val
@@ -129,7 +129,7 @@ SELECT roundtrip('["string", "string2"]'::jsonb);
 
 -- complex numbers -> jsonb
 CREATE FUNCTION testComplexNumbers() RETURNS jsonb
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE jsonb
 AS $$
 x = 1 + 2j
@@ -140,7 +140,7 @@ SELECT testComplexNumbers();
 
 -- range -> jsonb
 CREATE FUNCTION testRange() RETURNS jsonb
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE jsonb
 AS $$
 x = range(3)
@@ -151,7 +151,7 @@ SELECT testRange();
 
 -- 0xff -> jsonb
 CREATE FUNCTION testDecimal() RETURNS jsonb
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE jsonb
 AS $$
 x = 0xff
@@ -162,7 +162,7 @@ SELECT testDecimal();
 
 -- tuple -> jsonb
 CREATE FUNCTION testTuple() RETURNS jsonb
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE jsonb
 AS $$
 x = (1, 'String', None)
@@ -173,7 +173,7 @@ SELECT testTuple();
 
 -- interesting dict -> jsonb
 CREATE FUNCTION test_dict1() RETURNS jsonb
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE jsonb
 AS $$
 x = {"a": 1, None: 2, 33: 3}
diff --git a/contrib/ltree_plpython/Makefile b/contrib/ltree_plpython/Makefile
index 12a01467721..406d2789c9c 100644
--- a/contrib/ltree_plpython/Makefile
+++ b/contrib/ltree_plpython/Makefile
@@ -6,11 +6,10 @@ OBJS = \
 	ltree_plpython.o
 PGFILEDESC = "ltree_plpython - ltree transform for plpython"
 
-EXTENSION = ltree_plpythonu ltree_plpython2u ltree_plpython3u
-DATA = ltree_plpythonu--1.0.sql ltree_plpython2u--1.0.sql ltree_plpython3u--1.0.sql
+EXTENSION = ltree_plpython3u
+DATA = ltree_plpython3u--1.0.sql
 
 REGRESS = ltree_plpython
-REGRESS_PLPYTHON3_MANGLE := $(REGRESS)
 
 PG_CPPFLAGS = $(python_includespec) -DPLPYTHON_LIBNAME='"plpython$(python_majorversion)"'
 
@@ -37,9 +36,4 @@ SHLIB_LINK += $(python_libspec) $(python_additional_libs)
 endif
 
 REGRESS_OPTS += --load-extension=ltree
-ifeq ($(python_majorversion),2)
-REGRESS_OPTS += --load-extension=plpythonu --load-extension=ltree_plpythonu
-endif
 EXTRA_INSTALL += contrib/ltree
-
-include $(top_srcdir)/src/pl/plpython/regress-python3-mangle.mk
diff --git a/contrib/ltree_plpython/expected/ltree_plpython.out b/contrib/ltree_plpython/expected/ltree_plpython.out
index f28897fee48..bd32541fdb3 100644
--- a/contrib/ltree_plpython/expected/ltree_plpython.out
+++ b/contrib/ltree_plpython/expected/ltree_plpython.out
@@ -1,7 +1,7 @@
-CREATE EXTENSION ltree_plpython2u CASCADE;
-NOTICE:  installing required extension "plpython2u"
+CREATE EXTENSION ltree_plpython3u CASCADE;
+NOTICE:  installing required extension "plpython3u"
 CREATE FUNCTION test1(val ltree) RETURNS int
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE ltree
 AS $$
 plpy.info(repr(val))
@@ -15,7 +15,7 @@ INFO:  ['aa', 'bb', 'cc']
 (1 row)
 
 CREATE FUNCTION test1n(val ltree) RETURNS int
-LANGUAGE plpython2u
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE ltree
 AS $$
 plpy.info(repr(val))
@@ -29,7 +29,7 @@ INFO:  ['aa', 'bb', 'cc']
 (1 row)
 
 CREATE FUNCTION test2() RETURNS ltree
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE ltree
 AS $$
 return ['foo', 'bar', 'baz']
diff --git a/contrib/ltree_plpython/ltree_plpython2u--1.0.sql b/contrib/ltree_plpython/ltree_plpython2u--1.0.sql
deleted file mode 100644
index 5c4a7037013..00000000000
--- a/contrib/ltree_plpython/ltree_plpython2u--1.0.sql
+++ /dev/null
@@ -1,12 +0,0 @@
-/* contrib/ltree_plpython/ltree_plpython2u--1.0.sql */
-
--- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION ltree_plpython2u" to load this file. \quit
-
-CREATE FUNCTION ltree_to_plpython2(val internal) RETURNS internal
-LANGUAGE C STRICT IMMUTABLE
-AS 'MODULE_PATHNAME', 'ltree_to_plpython';
-
-CREATE TRANSFORM FOR ltree LANGUAGE plpython2u (
-    FROM SQL WITH FUNCTION ltree_to_plpython2(internal)
-);
diff --git a/contrib/ltree_plpython/ltree_plpython2u.control b/contrib/ltree_plpython/ltree_plpython2u.control
deleted file mode 100644
index bedfd0acbad..00000000000
--- a/contrib/ltree_plpython/ltree_plpython2u.control
+++ /dev/null
@@ -1,6 +0,0 @@
-# ltree_plpython2u extension
-comment = 'transform between ltree and plpython2u'
-default_version = '1.0'
-module_pathname = '$libdir/ltree_plpython2'
-relocatable = true
-requires = 'ltree,plpython2u'
diff --git a/contrib/ltree_plpython/ltree_plpythonu--1.0.sql b/contrib/ltree_plpython/ltree_plpythonu--1.0.sql
deleted file mode 100644
index ee93edf28b9..00000000000
--- a/contrib/ltree_plpython/ltree_plpythonu--1.0.sql
+++ /dev/null
@@ -1,12 +0,0 @@
-/* contrib/ltree_plpython/ltree_plpythonu--1.0.sql */
-
--- complain if script is sourced in psql, rather than via CREATE EXTENSION
-\echo Use "CREATE EXTENSION ltree_plpythonu" to load this file. \quit
-
-CREATE FUNCTION ltree_to_plpython(val internal) RETURNS internal
-LANGUAGE C STRICT IMMUTABLE
-AS 'MODULE_PATHNAME';
-
-CREATE TRANSFORM FOR ltree LANGUAGE plpythonu (
-    FROM SQL WITH FUNCTION ltree_to_plpython(internal)
-);
diff --git a/contrib/ltree_plpython/ltree_plpythonu.control b/contrib/ltree_plpython/ltree_plpythonu.control
deleted file mode 100644
index b03c89a2e6e..00000000000
--- a/contrib/ltree_plpython/ltree_plpythonu.control
+++ /dev/null
@@ -1,6 +0,0 @@
-# ltree_plpythonu extension
-comment = 'transform between ltree and plpythonu'
-default_version = '1.0'
-module_pathname = '$libdir/ltree_plpython2'
-relocatable = true
-requires = 'ltree,plpythonu'
diff --git a/contrib/ltree_plpython/sql/ltree_plpython.sql b/contrib/ltree_plpython/sql/ltree_plpython.sql
index 210f5428a5a..0b8d28399a6 100644
--- a/contrib/ltree_plpython/sql/ltree_plpython.sql
+++ b/contrib/ltree_plpython/sql/ltree_plpython.sql
@@ -1,8 +1,8 @@
-CREATE EXTENSION ltree_plpython2u CASCADE;
+CREATE EXTENSION ltree_plpython3u CASCADE;
 
 
 CREATE FUNCTION test1(val ltree) RETURNS int
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE ltree
 AS $$
 plpy.info(repr(val))
@@ -13,7 +13,7 @@ SELECT test1('aa.bb.cc'::ltree);
 
 
 CREATE FUNCTION test1n(val ltree) RETURNS int
-LANGUAGE plpython2u
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE ltree
 AS $$
 plpy.info(repr(val))
@@ -24,7 +24,7 @@ SELECT test1n('aa.bb.cc'::ltree);
 
 
 CREATE FUNCTION test2() RETURNS ltree
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 TRANSFORM FOR TYPE ltree
 AS $$
 return ['foo', 'bar', 'baz']
diff --git a/src/pl/plpython/Makefile b/src/pl/plpython/Makefile
index 9e95285af89..a8feacdef06 100644
--- a/src/pl/plpython/Makefile
+++ b/src/pl/plpython/Makefile
@@ -35,9 +35,6 @@ OBJS = \
 	plpy_util.o
 
 DATA = $(NAME)u.control $(NAME)u--1.0.sql
-ifeq ($(python_majorversion),2)
-DATA += plpythonu.control plpythonu--1.0.sql
-endif
 
 # header files to install - it's not clear which of these might be needed
 # so install them all.
@@ -77,11 +74,6 @@ endif # win32
 SHLIB_LINK = $(python_libspec) $(python_additional_libs) $(filter -lintl,$(LIBS))
 
 REGRESS_OPTS = --dbname=$(PL_TESTDB)
-# Only load plpythonu with Python 2.  The test files themselves load
-# the versioned language plpython(2|3)u.
-ifeq ($(python_majorversion),2)
-REGRESS_OPTS += --load-extension=plpythonu
-endif
 
 REGRESS = \
 	plpython_schema \
@@ -108,8 +100,6 @@ REGRESS = \
 	plpython_transaction \
 	plpython_drop
 
-REGRESS_PLPYTHON3_MANGLE := $(REGRESS)
-
 include $(top_srcdir)/src/Makefile.shlib
 
 all: all-lib
@@ -127,7 +117,6 @@ uninstall: uninstall-lib uninstall-data
 install-data: installdirs
 	$(INSTALL_DATA) $(addprefix $(srcdir)/, $(DATA)) '$(DESTDIR)$(datadir)/extension/'
 	$(INSTALL_DATA) $(addprefix $(srcdir)/, $(INCS)) '$(DESTDIR)$(includedir_server)'
-	$(INSTALL_DATA) $(srcdir)/regress-python3-mangle.mk '$(DESTDIR)$(pgxsdir)/src/pl/plpython'
 
 uninstall-data:
 	rm -f $(addprefix '$(DESTDIR)$(datadir)/extension'/, $(notdir $(DATA)))
@@ -136,9 +125,6 @@ uninstall-data:
 .PHONY: install-data uninstall-data
 
 
-include $(srcdir)/regress-python3-mangle.mk
-
-
 check: submake-pg-regress
 	$(pg_regress_check) $(REGRESS_OPTS) $(REGRESS)
 
diff --git a/src/pl/plpython/expected/plpython_call.out b/src/pl/plpython/expected/plpython_call.out
index 55e1027246a..4c0690067a0 100644
--- a/src/pl/plpython/expected/plpython_call.out
+++ b/src/pl/plpython/expected/plpython_call.out
@@ -2,14 +2,14 @@
 -- Tests for procedures / CALL syntax
 --
 CREATE PROCEDURE test_proc1()
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 AS $$
 pass
 $$;
 CALL test_proc1();
 -- error: can't return non-None
 CREATE PROCEDURE test_proc2()
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 AS $$
 return 5
 $$;
@@ -18,7 +18,7 @@ ERROR:  PL/Python procedure did not return None
 CONTEXT:  PL/Python procedure "test_proc2"
 CREATE TABLE test1 (a int);
 CREATE PROCEDURE test_proc3(x int)
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 AS $$
 plpy.execute("INSERT INTO test1 VALUES (%s)" % x)
 $$;
@@ -31,7 +31,7 @@ SELECT * FROM test1;
 
 -- output arguments
 CREATE PROCEDURE test_proc5(INOUT a text)
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 AS $$
 return [a + '+' + a]
 $$;
@@ -42,7 +42,7 @@ CALL test_proc5('abc');
 (1 row)
 
 CREATE PROCEDURE test_proc6(a int, INOUT b int, INOUT c int)
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 AS $$
 return (b * a, c * a)
 $$;
@@ -54,7 +54,7 @@ CALL test_proc6(2, 3, 4);
 
 -- OUT parameters
 CREATE PROCEDURE test_proc9(IN a int, OUT b int)
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 AS $$
 plpy.notice("a: %s" % (a))
 return (a * 2,)
diff --git a/src/pl/plpython/expected/plpython_composite.out b/src/pl/plpython/expected/plpython_composite.out
index af801923343..bb101e07d53 100644
--- a/src/pl/plpython/expected/plpython_composite.out
+++ b/src/pl/plpython/expected/plpython_composite.out
@@ -1,6 +1,6 @@
 CREATE FUNCTION multiout_simple(OUT i integer, OUT j integer) AS $$
 return (1, 2)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT multiout_simple();
  multiout_simple 
 -----------------
@@ -27,7 +27,7 @@ SELECT (multiout_simple()).j + 3;
 
 CREATE FUNCTION multiout_simple_setof(n integer = 1, OUT integer, OUT integer) RETURNS SETOF record AS $$
 return [(1, 2)] * n
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT multiout_simple_setof();
  multiout_simple_setof 
 -----------------------
@@ -67,7 +67,7 @@ elif typ == 'obj':
     return type_record
 elif typ == 'str':
     return "('%s',%r)" % (first, second)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM multiout_record_as('dict', 'foo', 1, 'f');
  first | second 
 -------+--------
@@ -237,7 +237,7 @@ for i in range(n):
     power = 2 ** i
     length = plpy.execute("select length('%d')" % power)[0]['length']
     yield power, length
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM multiout_setof(3);
  power_of_2 | length 
 ------------+--------
@@ -260,7 +260,7 @@ CREATE FUNCTION multiout_return_table() RETURNS TABLE (x integer, y text) AS $$
 return [{'x': 4, 'y' :'four'},
         {'x': 7, 'y' :'seven'},
         {'x': 0, 'y' :'zero'}]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM multiout_return_table();
  x |   y   
 ---+-------
@@ -273,7 +273,7 @@ CREATE FUNCTION multiout_array(OUT integer[], OUT text) RETURNS SETOF record AS
 yield [[1], 'a']
 yield [[1,2], 'b']
 yield [[1,2,3], None]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM multiout_array();
  column1 | column2 
 ---------+---------
@@ -284,11 +284,11 @@ SELECT * FROM multiout_array();
 
 CREATE FUNCTION singleout_composite(OUT type_record) AS $$
 return {'first': 1, 'second': 2}
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE FUNCTION multiout_composite(OUT type_record) RETURNS SETOF type_record AS $$
 return [{'first': 1, 'second': 2},
        {'first': 3, 'second': 4	}]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM singleout_composite();
  first | second 
 -------+--------
@@ -305,7 +305,7 @@ SELECT * FROM multiout_composite();
 -- composite OUT parameters in functions returning RECORD not supported yet
 CREATE FUNCTION multiout_composite(INOUT n integer, OUT type_record) AS $$
 return (n, (n * 2, n * 3))
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE FUNCTION multiout_table_type_setof(typ text, returnnull boolean, INOUT n integer, OUT table_record) RETURNS SETOF record AS $$
 if returnnull:
     d = None
@@ -323,7 +323,7 @@ elif typ == 'str':
     d = "(%r,%r)" % (n * 2, n * 3)
 for i in range(n):
     yield (i, d)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM multiout_composite(2);
  n | column2 
 ---+---------
@@ -438,7 +438,7 @@ CREATE TABLE changing (
 CREATE FUNCTION changing_test(OUT n integer, OUT changing) RETURNS SETOF record AS $$
 return [(1, {'i': 1, 'j': 2}),
         (1, (3, 4))]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM changing_test();
  n | column2 
 ---+---------
@@ -474,7 +474,7 @@ yield {'tab': [('first', 1), ('second', 2)],
 yield {'tab': [('first', 1), ('second', 2)],
       'typ': [{'first': 'third', 'second': 3},
               {'first': 'fourth', 'second': 4}]}
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM composite_types_table();
             tab             |            typ             
 ----------------------------+----------------------------
@@ -486,7 +486,7 @@ SELECT * FROM composite_types_table();
 -- check what happens if the output record descriptor changes
 CREATE FUNCTION return_record(t text) RETURNS record AS $$
 return {'t': t, 'val': 10}
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM return_record('abc') AS r(t text, val integer);
   t  | val 
 -----+-----
@@ -525,7 +525,7 @@ SELECT * FROM return_record('999') AS r(val text, t integer);
 
 CREATE FUNCTION return_record_2(t text) RETURNS record AS $$
 return {'v1':1,'v2':2,t:3}
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM return_record_2('v3') AS (v3 int, v2 int, v1 int);
  v3 | v2 | v1 
 ----+----+----
@@ -572,7 +572,7 @@ SELECT * FROM return_record_2('v3') AS (v1 int, v2 int, v3 int);
 -- multi-dimensional array of composite types.
 CREATE FUNCTION composite_type_as_list()  RETURNS type_record[] AS $$
   return [[('first', 1), ('second', 1)], [('first', 2), ('second', 2)], [('first', 3), ('second', 3)]];
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM composite_type_as_list();
                                composite_type_as_list                               
 ------------------------------------------------------------------------------------
@@ -585,7 +585,7 @@ SELECT * FROM composite_type_as_list();
 -- on the issue.
 CREATE FUNCTION composite_type_as_list_broken()  RETURNS type_record[] AS $$
   return [['first', 1]];
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM composite_type_as_list_broken();
 ERROR:  malformed record literal: "first"
 DETAIL:  Missing left parenthesis.
diff --git a/src/pl/plpython/expected/plpython_do.out b/src/pl/plpython/expected/plpython_do.out
index e300530e031..d131a4c0ed6 100644
--- a/src/pl/plpython/expected/plpython_do.out
+++ b/src/pl/plpython/expected/plpython_do.out
@@ -1,8 +1,6 @@
-DO $$ plpy.notice("This is plpythonu.") $$ LANGUAGE plpythonu;
-NOTICE:  This is plpythonu.
-DO $$ plpy.notice("This is plpython2u.") $$ LANGUAGE plpython2u;
-NOTICE:  This is plpython2u.
-DO $$ raise Exception("error test") $$ LANGUAGE plpythonu;
+DO $$ plpy.notice("This is plpython3u.") $$ LANGUAGE plpython3u;
+NOTICE:  This is plpython3u.
+DO $$ raise Exception("error test") $$ LANGUAGE plpython3u;
 ERROR:  Exception: error test
 CONTEXT:  Traceback (most recent call last):
   PL/Python anonymous code block, line 1, in <module>
diff --git a/src/pl/plpython/expected/plpython_drop.out b/src/pl/plpython/expected/plpython_drop.out
index a0e3b5c4ef6..97bb54a55e7 100644
--- a/src/pl/plpython/expected/plpython_drop.out
+++ b/src/pl/plpython/expected/plpython_drop.out
@@ -2,5 +2,4 @@
 -- For paranoia's sake, don't leave an untrusted language sitting around
 --
 SET client_min_messages = WARNING;
-DROP EXTENSION plpythonu CASCADE;
-DROP EXTENSION IF EXISTS plpython2u CASCADE;
+DROP EXTENSION plpython3u CASCADE;
diff --git a/src/pl/plpython/expected/plpython_ereport.out b/src/pl/plpython/expected/plpython_ereport.out
index b73bfff5115..b38bb91e894 100644
--- a/src/pl/plpython/expected/plpython_ereport.out
+++ b/src/pl/plpython/expected/plpython_ereport.out
@@ -17,7 +17,7 @@ plpy.info('This is message text.',
 plpy.notice('notice', detail='some detail')
 plpy.warning('warning', detail='some detail')
 plpy.error('stop on error', detail='some detail', hint='some hint')
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT elog_test();
 INFO:  info
 DETAIL:  some detail
@@ -38,42 +38,42 @@ CONTEXT:  Traceback (most recent call last):
   PL/Python function "elog_test", line 18, in <module>
     plpy.error('stop on error', detail='some detail', hint='some hint')
 PL/Python function "elog_test"
-DO $$ plpy.info('other types', detail=(10, 20)) $$ LANGUAGE plpythonu;
+DO $$ plpy.info('other types', detail=(10, 20)) $$ LANGUAGE plpython3u;
 INFO:  other types
 DETAIL:  (10, 20)
 DO $$
 import time;
 from datetime import date
 plpy.info('other types', detail=date(2016, 2, 26))
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 INFO:  other types
 DETAIL:  2016-02-26
 DO $$
 basket = ['apple', 'orange', 'apple', 'pear', 'orange', 'banana']
 plpy.info('other types', detail=basket)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 INFO:  other types
 DETAIL:  ['apple', 'orange', 'apple', 'pear', 'orange', 'banana']
 -- should fail
-DO $$ plpy.info('wrong sqlstate', sqlstate='54444A') $$ LANGUAGE plpythonu;
+DO $$ plpy.info('wrong sqlstate', sqlstate='54444A') $$ LANGUAGE plpython3u;
 ERROR:  ValueError: invalid SQLSTATE code
 CONTEXT:  Traceback (most recent call last):
   PL/Python anonymous code block, line 1, in <module>
     plpy.info('wrong sqlstate', sqlstate='54444A') 
 PL/Python anonymous code block
-DO $$ plpy.info('unsupported argument', blabla='fooboo') $$ LANGUAGE plpythonu;
+DO $$ plpy.info('unsupported argument', blabla='fooboo') $$ LANGUAGE plpython3u;
 ERROR:  TypeError: 'blabla' is an invalid keyword argument for this function
 CONTEXT:  Traceback (most recent call last):
   PL/Python anonymous code block, line 1, in <module>
     plpy.info('unsupported argument', blabla='fooboo') 
 PL/Python anonymous code block
-DO $$ plpy.info('first message', message='second message') $$ LANGUAGE plpythonu;
+DO $$ plpy.info('first message', message='second message') $$ LANGUAGE plpython3u;
 ERROR:  TypeError: argument 'message' given by name and position
 CONTEXT:  Traceback (most recent call last):
   PL/Python anonymous code block, line 1, in <module>
     plpy.info('first message', message='second message') 
 PL/Python anonymous code block
-DO $$ plpy.info('first message', 'second message', message='third message') $$ LANGUAGE plpythonu;
+DO $$ plpy.info('first message', 'second message', message='third message') $$ LANGUAGE plpython3u;
 ERROR:  TypeError: argument 'message' given by name and position
 CONTEXT:  Traceback (most recent call last):
   PL/Python anonymous code block, line 1, in <module>
@@ -96,7 +96,7 @@ kwargs = {
 }
 # ignore None values
 plpy.error(**dict((k, v) for k, v in iter(kwargs.items()) if v))
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT raise_exception('hello', 'world');
 ERROR:  plpy.Error: hello
 DETAIL:  world
@@ -189,7 +189,7 @@ try:
 except Exception as e:
     plpy.info(e.spidata)
     raise e
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 INFO:  (119577128, None, 'some hint', None, 0, None, 'users_tab', None, 'user_type', None)
 ERROR:  plpy.SPIError: plpy.Error: my message
 HINT:  some hint
@@ -199,7 +199,7 @@ try:
 except Exception as e:
     plpy.info('sqlstate: %s, hint: %s, table_name: %s, datatype_name: %s' % (e.sqlstate, e.hint, e.table_name, e.datatype_name))
     raise e
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 INFO:  sqlstate: XX987, hint: some hint, table_name: users_tab, datatype_name: user_type
 ERROR:  plpy.Error: my message
 HINT:  some hint
diff --git a/src/pl/plpython/expected/plpython_error.out b/src/pl/plpython/expected/plpython_error.out
index b2f8fe83eb6..7fe864a1a57 100644
--- a/src/pl/plpython/expected/plpython_error.out
+++ b/src/pl/plpython/expected/plpython_error.out
@@ -6,7 +6,7 @@
 CREATE FUNCTION python_syntax_error() RETURNS text
         AS
 '.syntaxerror'
-        LANGUAGE plpythonu;
+        LANGUAGE plpython3u;
 ERROR:  could not compile PL/Python function "python_syntax_error"
 DETAIL:  SyntaxError: invalid syntax (<string>, line 2)
 /* With check_function_bodies = false the function should get defined
@@ -16,7 +16,7 @@ SET check_function_bodies = false;
 CREATE FUNCTION python_syntax_error() RETURNS text
         AS
 '.syntaxerror'
-        LANGUAGE plpythonu;
+        LANGUAGE plpython3u;
 SELECT python_syntax_error();
 ERROR:  could not compile PL/Python function "python_syntax_error"
 DETAIL:  SyntaxError: invalid syntax (<string>, line 2)
@@ -30,7 +30,7 @@ RESET check_function_bodies;
 CREATE FUNCTION sql_syntax_error() RETURNS text
         AS
 'plpy.execute("syntax error")'
-        LANGUAGE plpythonu;
+        LANGUAGE plpython3u;
 SELECT sql_syntax_error();
 ERROR:  spiexceptions.SyntaxError: syntax error at or near "syntax"
 LINE 1: syntax error
@@ -45,7 +45,7 @@ PL/Python function "sql_syntax_error"
 CREATE FUNCTION exception_index_invalid(text) RETURNS text
 	AS
 'return args[1]'
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 SELECT exception_index_invalid('test');
 ERROR:  IndexError: list index out of range
 CONTEXT:  Traceback (most recent call last):
@@ -58,7 +58,7 @@ CREATE FUNCTION exception_index_invalid_nested() RETURNS text
 	AS
 'rv = plpy.execute("SELECT test5(''foo'')")
 return rv[0]'
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 SELECT exception_index_invalid_nested();
 ERROR:  spiexceptions.UndefinedFunction: function test5(unknown) does not exist
 LINE 1: SELECT test5('foo')
@@ -81,7 +81,7 @@ if len(rv):
 	return rv[0]["fname"]
 return None
 '
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 SELECT invalid_type_uncaught('rick');
 ERROR:  spiexceptions.UndefinedObject: type "test" does not exist
 CONTEXT:  Traceback (most recent call last):
@@ -105,7 +105,7 @@ if len(rv):
 	return rv[0]["fname"]
 return None
 '
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 SELECT invalid_type_caught('rick');
 NOTICE:  type "test" does not exist
  invalid_type_caught 
@@ -129,7 +129,7 @@ if len(rv):
 	return rv[0]["fname"]
 return None
 '
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 SELECT invalid_type_reraised('rick');
 ERROR:  plpy.Error: type "test" does not exist
 CONTEXT:  Traceback (most recent call last):
@@ -147,7 +147,7 @@ if len(rv):
 	return rv[0]["fname"]
 return None
 '
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 SELECT valid_type('rick');
  valid_type 
 ------------
@@ -170,7 +170,7 @@ def fun3():
 fun3()
 return "not reached"
 '
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 SELECT nested_error();
 ERROR:  plpy.Error: boom
 CONTEXT:  Traceback (most recent call last):
@@ -199,7 +199,7 @@ def fun3():
 fun3()
 return "not reached"
 '
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 SELECT nested_error_raise();
 ERROR:  plpy.Error: boom
 CONTEXT:  Traceback (most recent call last):
@@ -228,7 +228,7 @@ def fun3():
 fun3()
 return "you''ve been warned"
 '
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 SELECT nested_warning();
 WARNING:  boom
    nested_warning   
@@ -241,9 +241,9 @@ WARNING:  boom
 CREATE FUNCTION toplevel_attribute_error() RETURNS void AS
 $$
 plpy.nonexistent
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT toplevel_attribute_error();
-ERROR:  AttributeError: 'module' object has no attribute 'nonexistent'
+ERROR:  AttributeError: module 'plpy' has no attribute 'nonexistent'
 CONTEXT:  Traceback (most recent call last):
   PL/Python function "toplevel_attribute_error", line 2, in <module>
     plpy.nonexistent
@@ -261,7 +261,7 @@ def third():
   plpy.execute("select sql_error()")
 
 first()
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE OR REPLACE FUNCTION sql_error() RETURNS void AS $$
 begin
   select 1/0;
@@ -274,7 +274,7 @@ end
 $$ LANGUAGE plpgsql;
 CREATE OR REPLACE FUNCTION sql_from_python_error() RETURNS void AS $$
 plpy.execute("select sql_error()")
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT python_traceback();
 ERROR:  spiexceptions.DivisionByZero: division by zero
 CONTEXT:  Traceback (most recent call last):
@@ -325,7 +325,7 @@ except spiexceptions.NotNullViolation as e:
     plpy.notice("Violated the NOT NULL constraint, sqlstate %s" % e.sqlstate)
 except spiexceptions.UniqueViolation as e:
     plpy.notice("Violated the UNIQUE constraint, sqlstate %s" % e.sqlstate)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT specific_exception(2);
  specific_exception 
 --------------------
@@ -351,7 +351,7 @@ NOTICE:  Violated the UNIQUE constraint, sqlstate 23505
 CREATE FUNCTION python_unique_violation() RETURNS void AS $$
 plpy.execute("insert into specific values (1)")
 plpy.execute("insert into specific values (1)")
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE FUNCTION catch_python_unique_violation() RETURNS text AS $$
 begin
     begin
@@ -374,7 +374,7 @@ CREATE FUNCTION manual_subxact() RETURNS void AS $$
 plpy.execute("savepoint save")
 plpy.execute("create table foo(x integer)")
 plpy.execute("rollback to save")
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT manual_subxact();
 ERROR:  plpy.SPIError: SPI_execute failed: SPI_ERROR_TRANSACTION
 CONTEXT:  Traceback (most recent call last):
@@ -389,7 +389,7 @@ rollback = plpy.prepare("rollback to save")
 plpy.execute(save)
 plpy.execute("create table foo(x integer)")
 plpy.execute(rollback)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT manual_subxact_prepared();
 ERROR:  plpy.SPIError: SPI_execute_plan failed: SPI_ERROR_TRANSACTION
 CONTEXT:  Traceback (most recent call last):
@@ -400,7 +400,7 @@ PL/Python function "manual_subxact_prepared"
  */
 CREATE FUNCTION plpy_raise_spiexception() RETURNS void AS $$
 raise plpy.spiexceptions.DivisionByZero()
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 DO $$
 BEGIN
 	SELECT plpy_raise_spiexception();
@@ -414,7 +414,7 @@ CREATE FUNCTION plpy_raise_spiexception_override() RETURNS void AS $$
 exc = plpy.spiexceptions.DivisionByZero()
 exc.sqlstate = 'SILLY'
 raise exc
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 DO $$
 BEGIN
 	SELECT plpy_raise_spiexception_override();
@@ -425,18 +425,18 @@ $$ LANGUAGE plpgsql;
 /* test the context stack trace for nested execution levels
  */
 CREATE FUNCTION notice_innerfunc() RETURNS int AS $$
-plpy.execute("DO LANGUAGE plpythonu $x$ plpy.notice('inside DO') $x$")
+plpy.execute("DO LANGUAGE plpython3u $x$ plpy.notice('inside DO') $x$")
 return 1
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE FUNCTION notice_outerfunc() RETURNS int AS $$
 plpy.execute("SELECT notice_innerfunc()")
 return 1
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 \set SHOW_CONTEXT always
 SELECT notice_outerfunc();
 NOTICE:  inside DO
 CONTEXT:  PL/Python anonymous code block
-SQL statement "DO LANGUAGE plpythonu $x$ plpy.notice('inside DO') $x$"
+SQL statement "DO LANGUAGE plpython3u $x$ plpy.notice('inside DO') $x$"
 PL/Python function "notice_innerfunc"
 SQL statement "SELECT notice_innerfunc()"
 PL/Python function "notice_outerfunc"
diff --git a/src/pl/plpython/expected/plpython_error_5.out b/src/pl/plpython/expected/plpython_error_5.out
deleted file mode 100644
index bc66ab55340..00000000000
--- a/src/pl/plpython/expected/plpython_error_5.out
+++ /dev/null
@@ -1,447 +0,0 @@
--- test error handling, i forgot to restore Warn_restart in
--- the trigger handler once. the errors and subsequent core dump were
--- interesting.
-/* Flat out Python syntax error
- */
-CREATE FUNCTION python_syntax_error() RETURNS text
-        AS
-'.syntaxerror'
-        LANGUAGE plpython3u;
-ERROR:  could not compile PL/Python function "python_syntax_error"
-DETAIL:  SyntaxError: invalid syntax (<string>, line 2)
-/* With check_function_bodies = false the function should get defined
- * and the error reported when called
- */
-SET check_function_bodies = false;
-CREATE FUNCTION python_syntax_error() RETURNS text
-        AS
-'.syntaxerror'
-        LANGUAGE plpython3u;
-SELECT python_syntax_error();
-ERROR:  could not compile PL/Python function "python_syntax_error"
-DETAIL:  SyntaxError: invalid syntax (<string>, line 2)
-/* Run the function twice to check if the hashtable entry gets cleaned up */
-SELECT python_syntax_error();
-ERROR:  could not compile PL/Python function "python_syntax_error"
-DETAIL:  SyntaxError: invalid syntax (<string>, line 2)
-RESET check_function_bodies;
-/* Flat out syntax error
- */
-CREATE FUNCTION sql_syntax_error() RETURNS text
-        AS
-'plpy.execute("syntax error")'
-        LANGUAGE plpython3u;
-SELECT sql_syntax_error();
-ERROR:  spiexceptions.SyntaxError: syntax error at or near "syntax"
-LINE 1: syntax error
-        ^
-QUERY:  syntax error
-CONTEXT:  Traceback (most recent call last):
-  PL/Python function "sql_syntax_error", line 1, in <module>
-    plpy.execute("syntax error")
-PL/Python function "sql_syntax_error"
-/* check the handling of uncaught python exceptions
- */
-CREATE FUNCTION exception_index_invalid(text) RETURNS text
-	AS
-'return args[1]'
-	LANGUAGE plpython3u;
-SELECT exception_index_invalid('test');
-ERROR:  IndexError: list index out of range
-CONTEXT:  Traceback (most recent call last):
-  PL/Python function "exception_index_invalid", line 1, in <module>
-    return args[1]
-PL/Python function "exception_index_invalid"
-/* check handling of nested exceptions
- */
-CREATE FUNCTION exception_index_invalid_nested() RETURNS text
-	AS
-'rv = plpy.execute("SELECT test5(''foo'')")
-return rv[0]'
-	LANGUAGE plpython3u;
-SELECT exception_index_invalid_nested();
-ERROR:  spiexceptions.UndefinedFunction: function test5(unknown) does not exist
-LINE 1: SELECT test5('foo')
-               ^
-HINT:  No function matches the given name and argument types. You might need to add explicit type casts.
-QUERY:  SELECT test5('foo')
-CONTEXT:  Traceback (most recent call last):
-  PL/Python function "exception_index_invalid_nested", line 1, in <module>
-    rv = plpy.execute("SELECT test5('foo')")
-PL/Python function "exception_index_invalid_nested"
-/* a typo
- */
-CREATE FUNCTION invalid_type_uncaught(a text) RETURNS text
-	AS
-'if "plan" not in SD:
-	q = "SELECT fname FROM users WHERE lname = $1"
-	SD["plan"] = plpy.prepare(q, [ "test" ])
-rv = plpy.execute(SD["plan"], [ a ])
-if len(rv):
-	return rv[0]["fname"]
-return None
-'
-	LANGUAGE plpython3u;
-SELECT invalid_type_uncaught('rick');
-ERROR:  spiexceptions.UndefinedObject: type "test" does not exist
-CONTEXT:  Traceback (most recent call last):
-  PL/Python function "invalid_type_uncaught", line 3, in <module>
-    SD["plan"] = plpy.prepare(q, [ "test" ])
-PL/Python function "invalid_type_uncaught"
-/* for what it's worth catch the exception generated by
- * the typo, and return None
- */
-CREATE FUNCTION invalid_type_caught(a text) RETURNS text
-	AS
-'if "plan" not in SD:
-	q = "SELECT fname FROM users WHERE lname = $1"
-	try:
-		SD["plan"] = plpy.prepare(q, [ "test" ])
-	except plpy.SPIError as ex:
-		plpy.notice(str(ex))
-		return None
-rv = plpy.execute(SD["plan"], [ a ])
-if len(rv):
-	return rv[0]["fname"]
-return None
-'
-	LANGUAGE plpython3u;
-SELECT invalid_type_caught('rick');
-NOTICE:  type "test" does not exist
- invalid_type_caught 
----------------------
- 
-(1 row)
-
-/* for what it's worth catch the exception generated by
- * the typo, and reraise it as a plain error
- */
-CREATE FUNCTION invalid_type_reraised(a text) RETURNS text
-	AS
-'if "plan" not in SD:
-	q = "SELECT fname FROM users WHERE lname = $1"
-	try:
-		SD["plan"] = plpy.prepare(q, [ "test" ])
-	except plpy.SPIError as ex:
-		plpy.error(str(ex))
-rv = plpy.execute(SD["plan"], [ a ])
-if len(rv):
-	return rv[0]["fname"]
-return None
-'
-	LANGUAGE plpython3u;
-SELECT invalid_type_reraised('rick');
-ERROR:  plpy.Error: type "test" does not exist
-CONTEXT:  Traceback (most recent call last):
-  PL/Python function "invalid_type_reraised", line 6, in <module>
-    plpy.error(str(ex))
-PL/Python function "invalid_type_reraised"
-/* no typo no messing about
- */
-CREATE FUNCTION valid_type(a text) RETURNS text
-	AS
-'if "plan" not in SD:
-	SD["plan"] = plpy.prepare("SELECT fname FROM users WHERE lname = $1", [ "text" ])
-rv = plpy.execute(SD["plan"], [ a ])
-if len(rv):
-	return rv[0]["fname"]
-return None
-'
-	LANGUAGE plpython3u;
-SELECT valid_type('rick');
- valid_type 
-------------
- 
-(1 row)
-
-/* error in nested functions to get a traceback
-*/
-CREATE FUNCTION nested_error() RETURNS text
-	AS
-'def fun1():
-	plpy.error("boom")
-
-def fun2():
-	fun1()
-
-def fun3():
-	fun2()
-
-fun3()
-return "not reached"
-'
-	LANGUAGE plpython3u;
-SELECT nested_error();
-ERROR:  plpy.Error: boom
-CONTEXT:  Traceback (most recent call last):
-  PL/Python function "nested_error", line 10, in <module>
-    fun3()
-  PL/Python function "nested_error", line 8, in fun3
-    fun2()
-  PL/Python function "nested_error", line 5, in fun2
-    fun1()
-  PL/Python function "nested_error", line 2, in fun1
-    plpy.error("boom")
-PL/Python function "nested_error"
-/* raising plpy.Error is just like calling plpy.error
-*/
-CREATE FUNCTION nested_error_raise() RETURNS text
-	AS
-'def fun1():
-	raise plpy.Error("boom")
-
-def fun2():
-	fun1()
-
-def fun3():
-	fun2()
-
-fun3()
-return "not reached"
-'
-	LANGUAGE plpython3u;
-SELECT nested_error_raise();
-ERROR:  plpy.Error: boom
-CONTEXT:  Traceback (most recent call last):
-  PL/Python function "nested_error_raise", line 10, in <module>
-    fun3()
-  PL/Python function "nested_error_raise", line 8, in fun3
-    fun2()
-  PL/Python function "nested_error_raise", line 5, in fun2
-    fun1()
-  PL/Python function "nested_error_raise", line 2, in fun1
-    raise plpy.Error("boom")
-PL/Python function "nested_error_raise"
-/* using plpy.warning should not produce a traceback
-*/
-CREATE FUNCTION nested_warning() RETURNS text
-	AS
-'def fun1():
-	plpy.warning("boom")
-
-def fun2():
-	fun1()
-
-def fun3():
-	fun2()
-
-fun3()
-return "you''ve been warned"
-'
-	LANGUAGE plpython3u;
-SELECT nested_warning();
-WARNING:  boom
-   nested_warning   
---------------------
- you've been warned
-(1 row)
-
-/* AttributeError at toplevel used to give segfaults with the traceback
-*/
-CREATE FUNCTION toplevel_attribute_error() RETURNS void AS
-$$
-plpy.nonexistent
-$$ LANGUAGE plpython3u;
-SELECT toplevel_attribute_error();
-ERROR:  AttributeError: module 'plpy' has no attribute 'nonexistent'
-CONTEXT:  Traceback (most recent call last):
-  PL/Python function "toplevel_attribute_error", line 2, in <module>
-    plpy.nonexistent
-PL/Python function "toplevel_attribute_error"
-/* Calling PL/Python functions from SQL and vice versa should not lose context.
- */
-CREATE OR REPLACE FUNCTION python_traceback() RETURNS void AS $$
-def first():
-  second()
-
-def second():
-  third()
-
-def third():
-  plpy.execute("select sql_error()")
-
-first()
-$$ LANGUAGE plpython3u;
-CREATE OR REPLACE FUNCTION sql_error() RETURNS void AS $$
-begin
-  select 1/0;
-end
-$$ LANGUAGE plpgsql;
-CREATE OR REPLACE FUNCTION python_from_sql_error() RETURNS void AS $$
-begin
-  select python_traceback();
-end
-$$ LANGUAGE plpgsql;
-CREATE OR REPLACE FUNCTION sql_from_python_error() RETURNS void AS $$
-plpy.execute("select sql_error()")
-$$ LANGUAGE plpython3u;
-SELECT python_traceback();
-ERROR:  spiexceptions.DivisionByZero: division by zero
-CONTEXT:  Traceback (most recent call last):
-  PL/Python function "python_traceback", line 11, in <module>
-    first()
-  PL/Python function "python_traceback", line 3, in first
-    second()
-  PL/Python function "python_traceback", line 6, in second
-    third()
-  PL/Python function "python_traceback", line 9, in third
-    plpy.execute("select sql_error()")
-PL/Python function "python_traceback"
-SELECT sql_error();
-ERROR:  division by zero
-CONTEXT:  SQL statement "select 1/0"
-PL/pgSQL function sql_error() line 3 at SQL statement
-SELECT python_from_sql_error();
-ERROR:  spiexceptions.DivisionByZero: division by zero
-CONTEXT:  Traceback (most recent call last):
-  PL/Python function "python_traceback", line 11, in <module>
-    first()
-  PL/Python function "python_traceback", line 3, in first
-    second()
-  PL/Python function "python_traceback", line 6, in second
-    third()
-  PL/Python function "python_traceback", line 9, in third
-    plpy.execute("select sql_error()")
-PL/Python function "python_traceback"
-SQL statement "select python_traceback()"
-PL/pgSQL function python_from_sql_error() line 3 at SQL statement
-SELECT sql_from_python_error();
-ERROR:  spiexceptions.DivisionByZero: division by zero
-CONTEXT:  Traceback (most recent call last):
-  PL/Python function "sql_from_python_error", line 2, in <module>
-    plpy.execute("select sql_error()")
-PL/Python function "sql_from_python_error"
-/* check catching specific types of exceptions
- */
-CREATE TABLE specific (
-    i integer PRIMARY KEY
-);
-CREATE FUNCTION specific_exception(i integer) RETURNS void AS
-$$
-from plpy import spiexceptions
-try:
-    plpy.execute("insert into specific values (%s)" % (i or "NULL"));
-except spiexceptions.NotNullViolation as e:
-    plpy.notice("Violated the NOT NULL constraint, sqlstate %s" % e.sqlstate)
-except spiexceptions.UniqueViolation as e:
-    plpy.notice("Violated the UNIQUE constraint, sqlstate %s" % e.sqlstate)
-$$ LANGUAGE plpython3u;
-SELECT specific_exception(2);
- specific_exception 
---------------------
- 
-(1 row)
-
-SELECT specific_exception(NULL);
-NOTICE:  Violated the NOT NULL constraint, sqlstate 23502
- specific_exception 
---------------------
- 
-(1 row)
-
-SELECT specific_exception(2);
-NOTICE:  Violated the UNIQUE constraint, sqlstate 23505
- specific_exception 
---------------------
- 
-(1 row)
-
-/* SPI errors in PL/Python functions should preserve the SQLSTATE value
- */
-CREATE FUNCTION python_unique_violation() RETURNS void AS $$
-plpy.execute("insert into specific values (1)")
-plpy.execute("insert into specific values (1)")
-$$ LANGUAGE plpython3u;
-CREATE FUNCTION catch_python_unique_violation() RETURNS text AS $$
-begin
-    begin
-        perform python_unique_violation();
-    exception when unique_violation then
-        return 'ok';
-    end;
-    return 'not reached';
-end;
-$$ language plpgsql;
-SELECT catch_python_unique_violation();
- catch_python_unique_violation 
--------------------------------
- ok
-(1 row)
-
-/* manually starting subtransactions - a bad idea
- */
-CREATE FUNCTION manual_subxact() RETURNS void AS $$
-plpy.execute("savepoint save")
-plpy.execute("create table foo(x integer)")
-plpy.execute("rollback to save")
-$$ LANGUAGE plpython3u;
-SELECT manual_subxact();
-ERROR:  plpy.SPIError: SPI_execute failed: SPI_ERROR_TRANSACTION
-CONTEXT:  Traceback (most recent call last):
-  PL/Python function "manual_subxact", line 2, in <module>
-    plpy.execute("savepoint save")
-PL/Python function "manual_subxact"
-/* same for prepared plans
- */
-CREATE FUNCTION manual_subxact_prepared() RETURNS void AS $$
-save = plpy.prepare("savepoint save")
-rollback = plpy.prepare("rollback to save")
-plpy.execute(save)
-plpy.execute("create table foo(x integer)")
-plpy.execute(rollback)
-$$ LANGUAGE plpython3u;
-SELECT manual_subxact_prepared();
-ERROR:  plpy.SPIError: SPI_execute_plan failed: SPI_ERROR_TRANSACTION
-CONTEXT:  Traceback (most recent call last):
-  PL/Python function "manual_subxact_prepared", line 4, in <module>
-    plpy.execute(save)
-PL/Python function "manual_subxact_prepared"
-/* raising plpy.spiexception.* from python code should preserve sqlstate
- */
-CREATE FUNCTION plpy_raise_spiexception() RETURNS void AS $$
-raise plpy.spiexceptions.DivisionByZero()
-$$ LANGUAGE plpython3u;
-DO $$
-BEGIN
-	SELECT plpy_raise_spiexception();
-EXCEPTION WHEN division_by_zero THEN
-	-- NOOP
-END
-$$ LANGUAGE plpgsql;
-/* setting a custom sqlstate should be handled
- */
-CREATE FUNCTION plpy_raise_spiexception_override() RETURNS void AS $$
-exc = plpy.spiexceptions.DivisionByZero()
-exc.sqlstate = 'SILLY'
-raise exc
-$$ LANGUAGE plpython3u;
-DO $$
-BEGIN
-	SELECT plpy_raise_spiexception_override();
-EXCEPTION WHEN SQLSTATE 'SILLY' THEN
-	-- NOOP
-END
-$$ LANGUAGE plpgsql;
-/* test the context stack trace for nested execution levels
- */
-CREATE FUNCTION notice_innerfunc() RETURNS int AS $$
-plpy.execute("DO LANGUAGE plpythonu $x$ plpy.notice('inside DO') $x$")
-return 1
-$$ LANGUAGE plpythonu;
-CREATE FUNCTION notice_outerfunc() RETURNS int AS $$
-plpy.execute("SELECT notice_innerfunc()")
-return 1
-$$ LANGUAGE plpythonu;
-\set SHOW_CONTEXT always
-SELECT notice_outerfunc();
-NOTICE:  inside DO
-CONTEXT:  PL/Python anonymous code block
-SQL statement "DO LANGUAGE plpythonu $x$ plpy.notice('inside DO') $x$"
-PL/Python function "notice_innerfunc"
-SQL statement "SELECT notice_innerfunc()"
-PL/Python function "notice_outerfunc"
- notice_outerfunc 
-------------------
-                1
-(1 row)
-
diff --git a/src/pl/plpython/expected/plpython_global.out b/src/pl/plpython/expected/plpython_global.out
index 192e3e48a72..a4cfb1483f9 100644
--- a/src/pl/plpython/expected/plpython_global.out
+++ b/src/pl/plpython/expected/plpython_global.out
@@ -8,7 +8,7 @@ CREATE FUNCTION global_test_one() returns text
 if "global_test" not in GD:
 	GD["global_test"] = "set by global_test_one"
 return "SD: " + SD["global_test"] + ", GD: " + GD["global_test"]'
-    LANGUAGE plpythonu;
+    LANGUAGE plpython3u;
 CREATE FUNCTION global_test_two() returns text
     AS
 'if "global_test" not in SD:
@@ -16,7 +16,7 @@ CREATE FUNCTION global_test_two() returns text
 if "global_test" not in GD:
 	GD["global_test"] = "set by global_test_two"
 return "SD: " + SD["global_test"] + ", GD: " + GD["global_test"]'
-    LANGUAGE plpythonu;
+    LANGUAGE plpython3u;
 CREATE FUNCTION static_test() returns int4
     AS
 'if "call" in SD:
@@ -25,7 +25,7 @@ else:
 	SD["call"] = 1
 return SD["call"]
 '
-    LANGUAGE plpythonu;
+    LANGUAGE plpython3u;
 SELECT static_test();
  static_test 
 -------------
diff --git a/src/pl/plpython/expected/plpython_import.out b/src/pl/plpython/expected/plpython_import.out
index b59e1821a79..854e989eaf9 100644
--- a/src/pl/plpython/expected/plpython_import.out
+++ b/src/pl/plpython/expected/plpython_import.out
@@ -6,7 +6,7 @@ CREATE FUNCTION import_fail() returns text
 except ImportError:
 	return "failed as expected"
 return "succeeded, that wasn''t supposed to happen"'
-    LANGUAGE plpythonu;
+    LANGUAGE plpython3u;
 CREATE FUNCTION import_succeed() returns text
 	AS
 'try:
@@ -25,7 +25,7 @@ except Exception as ex:
 	plpy.notice("import failed -- %s" % str(ex))
 	return "failed, that wasn''t supposed to happen"
 return "succeeded, as expected"'
-    LANGUAGE plpythonu;
+    LANGUAGE plpython3u;
 CREATE FUNCTION import_test_one(p text) RETURNS text
 	AS
 'try:
@@ -35,7 +35,7 @@ except ImportError:
     import sha
     digest = sha.new(p)
 return digest.hexdigest()'
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 CREATE FUNCTION import_test_two(u users) RETURNS text
 	AS
 'plain = u["fname"] + u["lname"]
@@ -46,7 +46,7 @@ except ImportError:
     import sha
     digest = sha.new(plain);
 return "sha hash of " + plain + " is " + digest.hexdigest()'
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 -- import python modules
 --
 SELECT import_fail();
diff --git a/src/pl/plpython/expected/plpython_newline.out b/src/pl/plpython/expected/plpython_newline.out
index 27dc2f8ab0c..2bc149257e7 100644
--- a/src/pl/plpython/expected/plpython_newline.out
+++ b/src/pl/plpython/expected/plpython_newline.out
@@ -3,13 +3,13 @@
 --
 CREATE OR REPLACE FUNCTION newline_lf() RETURNS integer AS
 E'x = 100\ny = 23\nreturn x + y\n'
-LANGUAGE plpythonu;
+LANGUAGE plpython3u;
 CREATE OR REPLACE FUNCTION newline_cr() RETURNS integer AS
 E'x = 100\ry = 23\rreturn x + y\r'
-LANGUAGE plpythonu;
+LANGUAGE plpython3u;
 CREATE OR REPLACE FUNCTION newline_crlf() RETURNS integer AS
 E'x = 100\r\ny = 23\r\nreturn x + y\r\n'
-LANGUAGE plpythonu;
+LANGUAGE plpython3u;
 SELECT newline_lf();
  newline_lf 
 ------------
diff --git a/src/pl/plpython/expected/plpython_params.out b/src/pl/plpython/expected/plpython_params.out
index 46ea7dfb90b..d1a36f36239 100644
--- a/src/pl/plpython/expected/plpython_params.out
+++ b/src/pl/plpython/expected/plpython_params.out
@@ -3,12 +3,12 @@
 --
 CREATE FUNCTION test_param_names0(integer, integer) RETURNS int AS $$
 return args[0] + args[1]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE FUNCTION test_param_names1(a0 integer, a1 text) RETURNS boolean AS $$
 assert a0 == args[0]
 assert a1 == args[1]
 return True
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE FUNCTION test_param_names2(u users) RETURNS text AS $$
 assert u == args[0]
 if isinstance(u, dict):
@@ -19,7 +19,7 @@ if isinstance(u, dict):
 else:
     s = str(u)
 return s
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 -- use deliberately wrong parameter names
 CREATE FUNCTION test_param_names3(a0 integer) RETURNS boolean AS $$
 try:
@@ -28,7 +28,7 @@ try:
 except NameError as e:
 	assert e.args[0].find("a1") > -1
 	return True
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT test_param_names0(2,7);
  test_param_names0 
 -------------------
diff --git a/src/pl/plpython/expected/plpython_quote.out b/src/pl/plpython/expected/plpython_quote.out
index eed72923aec..1fbe93d5351 100644
--- a/src/pl/plpython/expected/plpython_quote.out
+++ b/src/pl/plpython/expected/plpython_quote.out
@@ -8,7 +8,7 @@ CREATE FUNCTION quote(t text, how text) RETURNS text AS $$
         return plpy.quote_ident(t)
     else:
         raise plpy.Error("unrecognized quote type %s" % how)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT quote(t, 'literal') FROM (VALUES
        ('abc'),
        ('a''bc'),
diff --git a/src/pl/plpython/expected/plpython_record.out b/src/pl/plpython/expected/plpython_record.out
index 458330713a8..31de198582b 100644
--- a/src/pl/plpython/expected/plpython_record.out
+++ b/src/pl/plpython/expected/plpython_record.out
@@ -23,7 +23,7 @@ elif typ == 'obj':
 	type_record.first = first
 	type_record.second = second
 	return type_record
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE FUNCTION test_type_record_as(typ text, first text, second integer, retnull boolean) RETURNS type_record AS $$
 if retnull:
 	return None
@@ -40,17 +40,17 @@ elif typ == 'obj':
 	return type_record
 elif typ == 'str':
 	return "('%s',%r)" % (first, second)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE FUNCTION test_in_out_params(first in text, second out text) AS $$
 return first + '_in_to_out';
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE FUNCTION test_in_out_params_multi(first in text,
                                          second out text, third out text) AS $$
 return (first + '_record_in_to_out_1', first + '_record_in_to_out_2');
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE FUNCTION test_inout_params(first inout text) AS $$
 return first + '_inout';
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 -- Test tuple returning functions
 SELECT * FROM test_table_record_as('dict', null, null, false);
  first | second 
@@ -340,7 +340,7 @@ SELECT * FROM test_type_record_as('obj', 'one', 1, false);
 -- errors cases
 CREATE FUNCTION test_type_record_error1() RETURNS type_record AS $$
     return { 'first': 'first' }
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_record_error1();
 ERROR:  key "second" not found in mapping
 HINT:  To return null in a column, add the value None to the mapping with the key named after the column.
@@ -348,7 +348,7 @@ CONTEXT:  while creating return value
 PL/Python function "test_type_record_error1"
 CREATE FUNCTION test_type_record_error2() RETURNS type_record AS $$
     return [ 'first' ]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_record_error2();
 ERROR:  length of returned sequence did not match number of columns in row
 CONTEXT:  while creating return value
@@ -357,7 +357,7 @@ CREATE FUNCTION test_type_record_error3() RETURNS type_record AS $$
     class type_record: pass
     type_record.first = 'first'
     return type_record
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_record_error3();
 ERROR:  attribute "second" does not exist in Python object
 HINT:  To return null in a column, let the returned object have an attribute named after column with value None.
@@ -365,7 +365,7 @@ CONTEXT:  while creating return value
 PL/Python function "test_type_record_error3"
 CREATE FUNCTION test_type_record_error4() RETURNS type_record AS $$
     return 'foo'
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_record_error4();
 ERROR:  malformed record literal: "foo"
 DETAIL:  Missing left parenthesis.
diff --git a/src/pl/plpython/expected/plpython_setof.out b/src/pl/plpython/expected/plpython_setof.out
index 170dbc394de..39409400290 100644
--- a/src/pl/plpython/expected/plpython_setof.out
+++ b/src/pl/plpython/expected/plpython_setof.out
@@ -3,20 +3,20 @@
 --
 CREATE FUNCTION test_setof_error() RETURNS SETOF text AS $$
 return 37
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT test_setof_error();
 ERROR:  returned object cannot be iterated
 DETAIL:  PL/Python set-returning functions must return an iterable object.
 CONTEXT:  PL/Python function "test_setof_error"
 CREATE FUNCTION test_setof_as_list(count integer, content text) RETURNS SETOF text AS $$
 return [ content ]*count
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE FUNCTION test_setof_as_tuple(count integer, content text) RETURNS SETOF text AS $$
 t = ()
 for i in range(count):
 	t += ( content, )
 return t
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE FUNCTION test_setof_as_iterator(count integer, content text) RETURNS SETOF text AS $$
 class producer:
 	def __init__ (self, icount, icontent):
@@ -24,13 +24,13 @@ class producer:
 		self.icount = icount
 	def __iter__ (self):
 		return self
-	def next (self):
+	def __next__ (self):
 		if self.icount == 0:
 			raise StopIteration
 		self.icount -= 1
 		return self.icontent
 return producer(count, content)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE FUNCTION test_setof_spi_in_iterator() RETURNS SETOF text AS
 $$
     for s in ('Hello', 'Brave', 'New', 'World'):
@@ -38,7 +38,7 @@ $$
         yield s
         plpy.execute('select 2')
 $$
-LANGUAGE plpythonu;
+LANGUAGE plpython3u;
 -- Test set returning functions
 SELECT test_setof_as_list(0, 'list');
  test_setof_as_list 
@@ -130,7 +130,7 @@ global x
 while x <= lim:
     yield x
     x = x + 1
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT ugly(1, 5);
  ugly 
 ------
@@ -155,7 +155,7 @@ CREATE OR REPLACE FUNCTION get_user_records()
 RETURNS SETOF users
 AS $$
     return plpy.execute("SELECT * FROM users ORDER BY username")
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT get_user_records();
    get_user_records   
 ----------------------
@@ -179,7 +179,7 @@ CREATE OR REPLACE FUNCTION get_user_records2()
 RETURNS TABLE(fname text, lname text, username text, userid int)
 AS $$
     return plpy.execute("SELECT * FROM users ORDER BY username")
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT get_user_records2();
   get_user_records2   
 ----------------------
diff --git a/src/pl/plpython/expected/plpython_spi.out b/src/pl/plpython/expected/plpython_spi.out
index a09df68c7d1..391fdb0e645 100644
--- a/src/pl/plpython/expected/plpython_spi.out
+++ b/src/pl/plpython/expected/plpython_spi.out
@@ -6,17 +6,17 @@ CREATE FUNCTION nested_call_one(a text) RETURNS text
 'q = "SELECT nested_call_two(''%s'')" % a
 r = plpy.execute(q)
 return r[0]'
-	LANGUAGE plpythonu ;
+	LANGUAGE plpython3u ;
 CREATE FUNCTION nested_call_two(a text) RETURNS text
 	AS
 'q = "SELECT nested_call_three(''%s'')" % a
 r = plpy.execute(q)
 return r[0]'
-	LANGUAGE plpythonu ;
+	LANGUAGE plpython3u ;
 CREATE FUNCTION nested_call_three(a text) RETURNS text
 	AS
 'return a'
-	LANGUAGE plpythonu ;
+	LANGUAGE plpython3u ;
 -- some spi stuff
 CREATE FUNCTION spi_prepared_plan_test_one(a text) RETURNS text
 	AS
@@ -30,7 +30,7 @@ except Exception as ex:
 	plpy.error(str(ex))
 return None
 '
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 CREATE FUNCTION spi_prepared_plan_test_two(a text) RETURNS text
 	AS
 'if "myplan" not in SD:
@@ -43,7 +43,7 @@ except Exception as ex:
 	plpy.error(str(ex))
 return None
 '
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 CREATE FUNCTION spi_prepared_plan_test_nested(a text) RETURNS text
 	AS
 'if "myplan" not in SD:
@@ -57,7 +57,7 @@ except Exception as ex:
 	plpy.error(str(ex))
 return None
 '
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 CREATE FUNCTION join_sequences(s sequences) RETURNS text
 	AS
 'if not s["multipart"]:
@@ -69,7 +69,7 @@ for r in rv:
 	seq = seq + r["sequence"]
 return seq
 '
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 CREATE FUNCTION spi_recursive_sum(a int) RETURNS int
 	AS
 'r = 0
@@ -77,7 +77,7 @@ if a > 1:
     r = plpy.execute("SELECT spi_recursive_sum(%d) as a" % (a-1))[0]["a"]
 return a + r
 '
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 --
 -- spi and nested calls
 --
@@ -155,7 +155,7 @@ if result.status() > 0:
    return result.nrows()
 else:
    return None
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT result_metadata_test($$SELECT 1 AS foo, '11'::text AS bar UNION SELECT 2, '22'$$);
 INFO:  True
 INFO:  ['foo', 'bar']
@@ -177,7 +177,7 @@ CREATE FUNCTION result_nrows_test(cmd text) RETURNS int
 AS $$
 result = plpy.execute(cmd)
 return result.nrows()
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT result_nrows_test($$SELECT 1$$);
  result_nrows_test 
 -------------------
@@ -206,7 +206,7 @@ CREATE FUNCTION result_len_test(cmd text) RETURNS int
 AS $$
 result = plpy.execute(cmd)
 return len(result)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT result_len_test($$SELECT 1$$);
  result_len_test 
 -----------------
@@ -254,7 +254,7 @@ except TypeError:
 else:
     assert False, "TypeError not raised"
 
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT result_subscript_test();
 INFO:  2
 INFO:  4
@@ -272,7 +272,7 @@ result = plpy.execute("select 1 where false")
 
 plpy.info(result[:])
 
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT result_empty_test();
 INFO:  []
  result_empty_test 
@@ -285,7 +285,7 @@ AS $$
 plan = plpy.prepare(cmd)
 result = plpy.execute(plan)
 return str(result)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT result_str_test($$SELECT 1 AS foo UNION SELECT 2$$);
                       result_str_test                       
 ------------------------------------------------------------
@@ -306,12 +306,12 @@ for row in res:
     if row['lname'] == 'doe':
         does += 1
 return does
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE FUNCTION double_cursor_close() RETURNS int AS $$
 res = plpy.cursor("select fname, lname from users")
 res.close()
 res.close()
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE FUNCTION cursor_fetch() RETURNS int AS $$
 res = plpy.cursor("select fname, lname from users")
 assert len(res.fetch(3)) == 3
@@ -329,7 +329,7 @@ except StopIteration:
     pass
 else:
     assert False, "StopIteration not raised"
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE FUNCTION cursor_mix_next_and_fetch() RETURNS int AS $$
 res = plpy.cursor("select fname, lname from users order by fname")
 assert len(res.fetch(2)) == 2
@@ -342,7 +342,7 @@ except AttributeError:
 assert item['fname'] == 'rick'
 
 assert len(res.fetch(2)) == 1
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE FUNCTION fetch_after_close() RETURNS int AS $$
 res = plpy.cursor("select fname, lname from users")
 res.close()
@@ -352,7 +352,7 @@ except ValueError:
     pass
 else:
     assert False, "ValueError not raised"
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE FUNCTION next_after_close() RETURNS int AS $$
 res = plpy.cursor("select fname, lname from users")
 res.close()
@@ -365,7 +365,7 @@ except ValueError:
     pass
 else:
     assert False, "ValueError not raised"
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE FUNCTION cursor_fetch_next_empty() RETURNS int AS $$
 res = plpy.cursor("select fname, lname from users where false")
 assert len(res.fetch(1)) == 0
@@ -378,7 +378,7 @@ except StopIteration:
     pass
 else:
     assert False, "StopIteration not raised"
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE FUNCTION cursor_plan() RETURNS SETOF text AS $$
 plan = plpy.prepare(
     "select fname, lname from users where fname like $1 || '%' order by fname",
@@ -387,12 +387,12 @@ for row in plpy.cursor(plan, ["w"]):
     yield row['fname']
 for row in plan.cursor(["j"]):
     yield row['fname']
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE FUNCTION cursor_plan_wrong_args() RETURNS SETOF text AS $$
 plan = plpy.prepare("select fname, lname from users where fname like $1 || '%'",
                     ["text"])
 c = plpy.cursor(plan, ["a", "b"])
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE TYPE test_composite_type AS (
   a1 int,
   a2 varchar
@@ -401,7 +401,7 @@ CREATE OR REPLACE FUNCTION plan_composite_args() RETURNS test_composite_type AS
 plan = plpy.prepare("select $1 as c1", ["test_composite_type"])
 res = plpy.execute(plan, [{"a1": 3, "a2": "label"}])
 return res[0]["c1"]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT simple_cursor_test();
  simple_cursor_test 
 --------------------
diff --git a/src/pl/plpython/expected/plpython_subtransaction.out b/src/pl/plpython/expected/plpython_subtransaction.out
index 2a56541917d..43d9277a33b 100644
--- a/src/pl/plpython/expected/plpython_subtransaction.out
+++ b/src/pl/plpython/expected/plpython_subtransaction.out
@@ -14,7 +14,7 @@ with plpy.subtransaction():
         plpy.execute("INSERT INTO subtransaction_tbl VALUES ('oops')")
     elif what_error == "Python":
         raise Exception("Python exception")
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT subtransaction_ctx_test();
  subtransaction_ctx_test 
 -------------------------
@@ -71,7 +71,7 @@ with plpy.subtransaction():
             raise
         plpy.notice("Swallowed %s(%r)" % (e.__class__.__name__, e.args[0]))
 return "ok"
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT subtransaction_nested_test();
 ERROR:  spiexceptions.SyntaxError: syntax error at or near "error"
 LINE 1: error
@@ -111,7 +111,7 @@ with plpy.subtransaction():
     plpy.execute("INSERT INTO subtransaction_tbl VALUES (2)")
     plpy.execute("SELECT subtransaction_nested_test('t')")
 return "ok"
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT subtransaction_deeply_nested_test();
 NOTICE:  Swallowed SyntaxError('syntax error at or near "error"')
  subtransaction_deeply_nested_test 
@@ -133,42 +133,42 @@ TRUNCATE subtransaction_tbl;
 CREATE FUNCTION subtransaction_exit_without_enter() RETURNS void
 AS $$
 plpy.subtransaction().__exit__(None, None, None)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE FUNCTION subtransaction_enter_without_exit() RETURNS void
 AS $$
 plpy.subtransaction().__enter__()
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE FUNCTION subtransaction_exit_twice() RETURNS void
 AS $$
 plpy.subtransaction().__enter__()
 plpy.subtransaction().__exit__(None, None, None)
 plpy.subtransaction().__exit__(None, None, None)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE FUNCTION subtransaction_enter_twice() RETURNS void
 AS $$
 plpy.subtransaction().__enter__()
 plpy.subtransaction().__enter__()
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE FUNCTION subtransaction_exit_same_subtransaction_twice() RETURNS void
 AS $$
 s = plpy.subtransaction()
 s.__enter__()
 s.__exit__(None, None, None)
 s.__exit__(None, None, None)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE FUNCTION subtransaction_enter_same_subtransaction_twice() RETURNS void
 AS $$
 s = plpy.subtransaction()
 s.__enter__()
 s.__enter__()
 s.__exit__(None, None, None)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 -- No warnings here, as the subtransaction gets indeed closed
 CREATE FUNCTION subtransaction_enter_subtransaction_in_with() RETURNS void
 AS $$
 with plpy.subtransaction() as s:
     s.__enter__()
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE FUNCTION subtransaction_exit_subtransaction_in_with() RETURNS void
 AS $$
 try:
@@ -176,7 +176,7 @@ try:
         s.__exit__(None, None, None)
 except ValueError as e:
     raise ValueError(e)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT subtransaction_exit_without_enter();
 ERROR:  ValueError: this subtransaction has not been entered
 CONTEXT:  Traceback (most recent call last):
@@ -255,7 +255,7 @@ try:
     plpy.execute(p, ["wrong"])
 except plpy.SPIError:
     plpy.warning("Caught a SPI error")
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT subtransaction_mix_explicit_and_implicit();
 WARNING:  Caught a SPI error from an explicit subtransaction
 WARNING:  Caught a SPI error
@@ -278,7 +278,7 @@ AS $$
 s = plpy.subtransaction()
 s.enter()
 s.exit(None, None, None)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT subtransaction_alternative_names();
  subtransaction_alternative_names 
 ----------------------------------
@@ -294,7 +294,7 @@ with plpy.subtransaction():
          plpy.execute("INSERT INTO subtransaction_tbl VALUES ('a')")
      except plpy.SPIError:
          plpy.notice("caught")
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT try_catch_inside_subtransaction();
 NOTICE:  caught
  try_catch_inside_subtransaction 
@@ -318,7 +318,7 @@ with plpy.subtransaction():
          plpy.execute("INSERT INTO subtransaction_tbl VALUES (1)")
      except plpy.SPIError:
          plpy.notice("caught")
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT pk_violation_inside_subtransaction();
 NOTICE:  caught
  pk_violation_inside_subtransaction 
@@ -340,7 +340,7 @@ with plpy.subtransaction():
     cur.fetch(10)
 fetched = cur.fetch(10);
 return int(fetched[5]["i"])
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE FUNCTION cursor_aborted_subxact() RETURNS int AS $$
 try:
     with plpy.subtransaction():
@@ -351,7 +351,7 @@ except plpy.SPIError:
     fetched = cur.fetch(10)
     return int(fetched[5]["i"])
 return 0 # not reached
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE FUNCTION cursor_plan_aborted_subxact() RETURNS int AS $$
 try:
     with plpy.subtransaction():
@@ -364,7 +364,7 @@ except plpy.SPIError:
     fetched = cur.fetch(5)
     return fetched[2]["i"]
 return 0 # not reached
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE FUNCTION cursor_close_aborted_subxact() RETURNS boolean AS $$
 try:
     with plpy.subtransaction():
@@ -374,7 +374,7 @@ except plpy.SPIError:
     cur.close()
     return True
 return False # not reached
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT cursor_in_subxact();
  cursor_in_subxact 
 -------------------
diff --git a/src/pl/plpython/expected/plpython_test.out b/src/pl/plpython/expected/plpython_test.out
index 39b994f4468..13c14119c08 100644
--- a/src/pl/plpython/expected/plpython_test.out
+++ b/src/pl/plpython/expected/plpython_test.out
@@ -1,7 +1,7 @@
 -- first some tests of basic functionality
-CREATE EXTENSION plpython2u;
+CREATE EXTENSION plpython3u;
 -- really stupid function just to get the module loaded
-CREATE FUNCTION stupid() RETURNS text AS 'return "zarkon"' LANGUAGE plpythonu;
+CREATE FUNCTION stupid() RETURNS text AS 'return "zarkon"' LANGUAGE plpython3u;
 select stupid();
  stupid 
 --------
@@ -9,7 +9,7 @@ select stupid();
 (1 row)
 
 -- check 2/3 versioning
-CREATE FUNCTION stupidn() RETURNS text AS 'return "zarkon"' LANGUAGE plpython2u;
+CREATE FUNCTION stupidn() RETURNS text AS 'return "zarkon"' LANGUAGE plpython3u;
 select stupidn();
  stupidn 
 ---------
@@ -26,7 +26,7 @@ for key in keys:
     out.append("%s: %s" % (key, u[key]))
 words = a1 + " " + a2 + " => {" + ", ".join(out) + "}"
 return words'
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 select "Argument test #1"(users, fname, lname) from users where lname = 'doe' order by 1;
                            Argument test #1                            
 -----------------------------------------------------------------------
@@ -41,7 +41,7 @@ $$
 contents = list(filter(lambda x: not x.startswith("__"), dir(plpy)))
 contents.sort()
 return contents
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 select module_contents();
  module_contents 
 -----------------
@@ -78,7 +78,7 @@ plpy.info('info', 37, [1, 2, 3])
 plpy.notice('notice')
 plpy.warning('warning')
 plpy.error('error')
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT elog_test_basic();
 INFO:  info
 INFO:  37
diff --git a/src/pl/plpython/expected/plpython_transaction.out b/src/pl/plpython/expected/plpython_transaction.out
index 14152993c75..393ea21eaad 100644
--- a/src/pl/plpython/expected/plpython_transaction.out
+++ b/src/pl/plpython/expected/plpython_transaction.out
@@ -1,6 +1,6 @@
 CREATE TABLE test1 (a int, b text);
 CREATE PROCEDURE transaction_test1()
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 AS $$
 for i in range(0, 10):
     plpy.execute("INSERT INTO test1 (a) VALUES (%d)" % i)
@@ -22,7 +22,7 @@ SELECT * FROM test1;
 
 TRUNCATE test1;
 DO
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 $$
 for i in range(0, 10):
     plpy.execute("INSERT INTO test1 (a) VALUES (%d)" % i)
@@ -44,7 +44,7 @@ SELECT * FROM test1;
 TRUNCATE test1;
 -- not allowed in a function
 CREATE FUNCTION transaction_test2() RETURNS int
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 AS $$
 for i in range(0, 10):
     plpy.execute("INSERT INTO test1 (a) VALUES (%d)" % i)
@@ -64,7 +64,7 @@ SELECT * FROM test1;
 
 -- also not allowed if procedure is called from a function
 CREATE FUNCTION transaction_test3() RETURNS int
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 AS $$
 plpy.execute("CALL transaction_test1()")
 return 1
@@ -82,19 +82,19 @@ SELECT * FROM test1;
 
 -- DO block inside function
 CREATE FUNCTION transaction_test4() RETURNS int
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 AS $$
-plpy.execute("DO LANGUAGE plpythonu $x$ plpy.commit() $x$")
+plpy.execute("DO LANGUAGE plpython3u $x$ plpy.commit() $x$")
 return 1
 $$;
 SELECT transaction_test4();
 ERROR:  spiexceptions.InvalidTransactionTermination: invalid transaction termination
 CONTEXT:  Traceback (most recent call last):
   PL/Python function "transaction_test4", line 2, in <module>
-    plpy.execute("DO LANGUAGE plpythonu $x$ plpy.commit() $x$")
+    plpy.execute("DO LANGUAGE plpython3u $x$ plpy.commit() $x$")
 PL/Python function "transaction_test4"
 -- commit inside subtransaction (prohibited)
-DO LANGUAGE plpythonu $$
+DO LANGUAGE plpython3u $$
 s = plpy.subtransaction()
 s.enter()
 plpy.commit()
@@ -106,7 +106,7 @@ CONTEXT:  PL/Python anonymous code block
 CREATE TABLE test2 (x int);
 INSERT INTO test2 VALUES (0), (1), (2), (3), (4);
 TRUNCATE test1;
-DO LANGUAGE plpythonu $$
+DO LANGUAGE plpython3u $$
 for row in plpy.cursor("SELECT * FROM test2 ORDER BY x"):
     plpy.execute("INSERT INTO test1 (a) VALUES (%s)" % row['x'])
     plpy.commit()
@@ -129,7 +129,7 @@ SELECT * FROM pg_cursors;
 
 -- error in cursor loop with commit
 TRUNCATE test1;
-DO LANGUAGE plpythonu $$
+DO LANGUAGE plpython3u $$
 for row in plpy.cursor("SELECT * FROM test2 ORDER BY x"):
     plpy.execute("INSERT INTO test1 (a) VALUES (12/(%s-2))" % row['x'])
     plpy.commit()
@@ -153,7 +153,7 @@ SELECT * FROM pg_cursors;
 
 -- rollback inside cursor loop
 TRUNCATE test1;
-DO LANGUAGE plpythonu $$
+DO LANGUAGE plpython3u $$
 for row in plpy.cursor("SELECT * FROM test2 ORDER BY x"):
     plpy.execute("INSERT INTO test1 (a) VALUES (%s)" % row['x'])
     plpy.rollback()
@@ -170,7 +170,7 @@ SELECT * FROM pg_cursors;
 
 -- first commit then rollback inside cursor loop
 TRUNCATE test1;
-DO LANGUAGE plpythonu $$
+DO LANGUAGE plpython3u $$
 for row in plpy.cursor("SELECT * FROM test2 ORDER BY x"):
     plpy.execute("INSERT INTO test1 (a) VALUES (%s)" % row['x'])
     if row['x'] % 2 == 0:
diff --git a/src/pl/plpython/expected/plpython_trigger.out b/src/pl/plpython/expected/plpython_trigger.out
index 742988a5b59..dd1ca32fa49 100644
--- a/src/pl/plpython/expected/plpython_trigger.out
+++ b/src/pl/plpython/expected/plpython_trigger.out
@@ -15,20 +15,20 @@ if TD["new"]["fname"] == "william":
 	TD["new"]["fname"] = TD["args"][0]
 	rv = "MODIFY"
 return rv'
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 CREATE FUNCTION users_update() returns trigger
 	AS
 'if TD["event"] == "UPDATE":
 	if TD["old"]["fname"] != TD["new"]["fname"] and TD["old"]["fname"] == TD["args"][0]:
 		return "SKIP"
 return None'
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 CREATE FUNCTION users_delete() RETURNS trigger
 	AS
 'if TD["old"]["fname"] == TD["args"][0]:
 	return "SKIP"
 return None'
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 CREATE TRIGGER users_insert_trig BEFORE INSERT ON users FOR EACH ROW
 	EXECUTE PROCEDURE users_insert ('willem');
 CREATE TRIGGER users_update_trig BEFORE UPDATE ON users FOR EACH ROW
@@ -71,7 +71,7 @@ CREATE TABLE trigger_test_generated (
 	i int,
         j int GENERATED ALWAYS AS (i * 2) STORED
 );
-CREATE FUNCTION trigger_data() RETURNS trigger LANGUAGE plpythonu AS $$
+CREATE FUNCTION trigger_data() RETURNS trigger LANGUAGE plpython3u AS $$
 
 if 'relid' in TD:
 	TD['relid'] = "bogus:12345"
@@ -328,7 +328,7 @@ INSERT INTO trigger_test VALUES (0, 'zero');
 CREATE FUNCTION stupid1() RETURNS trigger
 AS $$
     return 37
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE TRIGGER stupid_trigger1
 BEFORE INSERT ON trigger_test
 FOR EACH ROW EXECUTE PROCEDURE stupid1();
@@ -341,7 +341,7 @@ DROP TRIGGER stupid_trigger1 ON trigger_test;
 CREATE FUNCTION stupid2() RETURNS trigger
 AS $$
     return "MODIFY"
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE TRIGGER stupid_trigger2
 BEFORE DELETE ON trigger_test
 FOR EACH ROW EXECUTE PROCEDURE stupid2();
@@ -353,7 +353,7 @@ INSERT INTO trigger_test VALUES (0, 'zero');
 CREATE FUNCTION stupid3() RETURNS trigger
 AS $$
     return "foo"
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE TRIGGER stupid_trigger3
 BEFORE UPDATE ON trigger_test
 FOR EACH ROW EXECUTE PROCEDURE stupid3();
@@ -365,8 +365,8 @@ DROP TRIGGER stupid_trigger3 ON trigger_test;
 -- Unicode variant
 CREATE FUNCTION stupid3u() RETURNS trigger
 AS $$
-    return u"foo"
-$$ LANGUAGE plpythonu;
+    return "foo"
+$$ LANGUAGE plpython3u;
 CREATE TRIGGER stupid_trigger3
 BEFORE UPDATE ON trigger_test
 FOR EACH ROW EXECUTE PROCEDURE stupid3u();
@@ -380,7 +380,7 @@ CREATE FUNCTION stupid4() RETURNS trigger
 AS $$
     del TD["new"]
     return "MODIFY";
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE TRIGGER stupid_trigger4
 BEFORE UPDATE ON trigger_test
 FOR EACH ROW EXECUTE PROCEDURE stupid4();
@@ -394,7 +394,7 @@ CREATE FUNCTION stupid5() RETURNS trigger
 AS $$
     TD["new"] = ['foo', 'bar']
     return "MODIFY";
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE TRIGGER stupid_trigger5
 BEFORE UPDATE ON trigger_test
 FOR EACH ROW EXECUTE PROCEDURE stupid5();
@@ -408,7 +408,7 @@ CREATE FUNCTION stupid6() RETURNS trigger
 AS $$
     TD["new"] = {1: 'foo', 2: 'bar'}
     return "MODIFY";
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE TRIGGER stupid_trigger6
 BEFORE UPDATE ON trigger_test
 FOR EACH ROW EXECUTE PROCEDURE stupid6();
@@ -422,7 +422,7 @@ CREATE FUNCTION stupid7() RETURNS trigger
 AS $$
     TD["new"] = {'v': 'foo', 'a': 'bar'}
     return "MODIFY";
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE TRIGGER stupid_trigger7
 BEFORE UPDATE ON trigger_test
 FOR EACH ROW EXECUTE PROCEDURE stupid7();
@@ -434,9 +434,9 @@ DROP TRIGGER stupid_trigger7 ON trigger_test;
 -- Unicode variant
 CREATE FUNCTION stupid7u() RETURNS trigger
 AS $$
-    TD["new"] = {u'v': 'foo', u'a': 'bar'}
+    TD["new"] = {'v': 'foo', 'a': 'bar'}
     return "MODIFY"
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE TRIGGER stupid_trigger7
 BEFORE UPDATE ON trigger_test
 FOR EACH ROW EXECUTE PROCEDURE stupid7u();
@@ -461,7 +461,7 @@ CREATE FUNCTION test_null() RETURNS trigger
 AS $$
     TD["new"]['v'] = None
     return "MODIFY"
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE TRIGGER test_null_trigger
 BEFORE UPDATE ON trigger_test
 FOR EACH ROW EXECUTE PROCEDURE test_null();
@@ -481,7 +481,7 @@ SET DateStyle = 'ISO';
 CREATE FUNCTION set_modif_time() RETURNS trigger AS $$
     TD['new']['modif_time'] = '2010-10-13 21:57:28.930486'
     return 'MODIFY'
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE TABLE pb (a TEXT, modif_time TIMESTAMP(0) WITHOUT TIME ZONE);
 CREATE TRIGGER set_modif_time BEFORE UPDATE ON pb
   FOR EACH ROW EXECUTE PROCEDURE set_modif_time();
@@ -507,7 +507,7 @@ CREATE FUNCTION composite_trigger_f() RETURNS trigger AS $$
     TD['new']['f1'] = (3, False)
     TD['new']['f2'] = {'k': 7, 'l': 'yes', 'ignored': 10}
     return 'MODIFY'
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE TRIGGER composite_trigger BEFORE INSERT ON composite_trigger_test
   FOR EACH ROW EXECUTE PROCEDURE composite_trigger_f();
 INSERT INTO composite_trigger_test VALUES (NULL, NULL);
@@ -521,7 +521,7 @@ SELECT * FROM composite_trigger_test;
 CREATE TABLE composite_trigger_noop_test (f1 comp1, f2 comp2);
 CREATE FUNCTION composite_trigger_noop_f() RETURNS trigger AS $$
     return 'MODIFY'
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE TRIGGER composite_trigger_noop BEFORE INSERT ON composite_trigger_noop_test
   FOR EACH ROW EXECUTE PROCEDURE composite_trigger_noop_f();
 INSERT INTO composite_trigger_noop_test VALUES (NULL, NULL);
@@ -540,7 +540,7 @@ CREATE TYPE comp3 AS (c1 comp1, c2 comp2, m integer);
 CREATE TABLE composite_trigger_nested_test(c comp3);
 CREATE FUNCTION composite_trigger_nested_f() RETURNS trigger AS $$
     return 'MODIFY'
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE TRIGGER composite_trigger_nested BEFORE INSERT ON composite_trigger_nested_test
   FOR EACH ROW EXECUTE PROCEDURE composite_trigger_nested_f();
 INSERT INTO composite_trigger_nested_test VALUES (NULL);
@@ -555,7 +555,7 @@ SELECT * FROM composite_trigger_nested_test;
 (3 rows)
 
 -- check that using a function as a trigger over two tables works correctly
-CREATE FUNCTION trig1234() RETURNS trigger LANGUAGE plpythonu AS $$
+CREATE FUNCTION trig1234() RETURNS trigger LANGUAGE plpython3u AS $$
     TD["new"]["data"] = '1234'
     return 'MODIFY'
 $$;
@@ -581,7 +581,7 @@ SELECT * FROM b;
 -- check that SQL run in trigger code can see transition tables
 CREATE TABLE transition_table_test (id int, name text);
 INSERT INTO transition_table_test VALUES (1, 'a');
-CREATE FUNCTION transition_table_test_f() RETURNS trigger LANGUAGE plpythonu AS
+CREATE FUNCTION transition_table_test_f() RETURNS trigger LANGUAGE plpython3u AS
 $$
     rv = plpy.execute("SELECT * FROM old_table")
     assert(rv.nrows() == 1)
@@ -601,7 +601,7 @@ DROP TABLE transition_table_test;
 DROP FUNCTION transition_table_test_f();
 -- dealing with generated columns
 CREATE FUNCTION generated_test_func1() RETURNS trigger
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 AS $$
 TD['new']['j'] = 5  # not allowed
 return 'MODIFY'
diff --git a/src/pl/plpython/expected/plpython_types.out b/src/pl/plpython/expected/plpython_types.out
index 0a2659fe292..a470911c2ec 100644
--- a/src/pl/plpython/expected/plpython_types.out
+++ b/src/pl/plpython/expected/plpython_types.out
@@ -7,23 +7,23 @@
 CREATE FUNCTION test_type_conversion_bool(x bool) RETURNS bool AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_conversion_bool(true);
-INFO:  (True, <type 'bool'>)
+INFO:  (True, <class 'bool'>)
  test_type_conversion_bool 
 ---------------------------
  t
 (1 row)
 
 SELECT * FROM test_type_conversion_bool(false);
-INFO:  (False, <type 'bool'>)
+INFO:  (False, <class 'bool'>)
  test_type_conversion_bool 
 ---------------------------
  f
 (1 row)
 
 SELECT * FROM test_type_conversion_bool(null);
-INFO:  (None, <type 'NoneType'>)
+INFO:  (None, <class 'NoneType'>)
  test_type_conversion_bool 
 ---------------------------
  
@@ -48,7 +48,7 @@ elif n == 5:
    ret = [0]
 plpy.info(ret, not not ret)
 return ret
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_conversion_bool_other(0);
 INFO:  (0, False)
  test_type_conversion_bool_other 
@@ -94,16 +94,16 @@ INFO:  ([0], True)
 CREATE FUNCTION test_type_conversion_char(x char) RETURNS char AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_conversion_char('a');
-INFO:  ('a', <type 'str'>)
+INFO:  ('a', <class 'str'>)
  test_type_conversion_char 
 ---------------------------
  a
 (1 row)
 
 SELECT * FROM test_type_conversion_char(null);
-INFO:  (None, <type 'NoneType'>)
+INFO:  (None, <class 'NoneType'>)
  test_type_conversion_char 
 ---------------------------
  
@@ -112,23 +112,23 @@ INFO:  (None, <type 'NoneType'>)
 CREATE FUNCTION test_type_conversion_int2(x int2) RETURNS int2 AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_conversion_int2(100::int2);
-INFO:  (100, <type 'int'>)
+INFO:  (100, <class 'int'>)
  test_type_conversion_int2 
 ---------------------------
                        100
 (1 row)
 
 SELECT * FROM test_type_conversion_int2(-100::int2);
-INFO:  (-100, <type 'int'>)
+INFO:  (-100, <class 'int'>)
  test_type_conversion_int2 
 ---------------------------
                       -100
 (1 row)
 
 SELECT * FROM test_type_conversion_int2(null);
-INFO:  (None, <type 'NoneType'>)
+INFO:  (None, <class 'NoneType'>)
  test_type_conversion_int2 
 ---------------------------
                           
@@ -137,23 +137,23 @@ INFO:  (None, <type 'NoneType'>)
 CREATE FUNCTION test_type_conversion_int4(x int4) RETURNS int4 AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_conversion_int4(100);
-INFO:  (100, <type 'int'>)
+INFO:  (100, <class 'int'>)
  test_type_conversion_int4 
 ---------------------------
                        100
 (1 row)
 
 SELECT * FROM test_type_conversion_int4(-100);
-INFO:  (-100, <type 'int'>)
+INFO:  (-100, <class 'int'>)
  test_type_conversion_int4 
 ---------------------------
                       -100
 (1 row)
 
 SELECT * FROM test_type_conversion_int4(null);
-INFO:  (None, <type 'NoneType'>)
+INFO:  (None, <class 'NoneType'>)
  test_type_conversion_int4 
 ---------------------------
                           
@@ -162,30 +162,30 @@ INFO:  (None, <type 'NoneType'>)
 CREATE FUNCTION test_type_conversion_int8(x int8) RETURNS int8 AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_conversion_int8(100);
-INFO:  (100L, <type 'long'>)
+INFO:  (100, <class 'int'>)
  test_type_conversion_int8 
 ---------------------------
                        100
 (1 row)
 
 SELECT * FROM test_type_conversion_int8(-100);
-INFO:  (-100L, <type 'long'>)
+INFO:  (-100, <class 'int'>)
  test_type_conversion_int8 
 ---------------------------
                       -100
 (1 row)
 
 SELECT * FROM test_type_conversion_int8(5000000000);
-INFO:  (5000000000L, <type 'long'>)
+INFO:  (5000000000, <class 'int'>)
  test_type_conversion_int8 
 ---------------------------
                 5000000000
 (1 row)
 
 SELECT * FROM test_type_conversion_int8(null);
-INFO:  (None, <type 'NoneType'>)
+INFO:  (None, <class 'NoneType'>)
  test_type_conversion_int8 
 ---------------------------
                           
@@ -196,7 +196,7 @@ CREATE FUNCTION test_type_conversion_numeric(x numeric) RETURNS numeric AS $$
 # between decimal and cdecimal
 plpy.info(str(x), x.__class__.__name__)
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_conversion_numeric(100);
 INFO:  ('100', 'Decimal')
  test_type_conversion_numeric 
@@ -256,30 +256,30 @@ INFO:  ('None', 'NoneType')
 CREATE FUNCTION test_type_conversion_float4(x float4) RETURNS float4 AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_conversion_float4(100);
-INFO:  (100.0, <type 'float'>)
+INFO:  (100.0, <class 'float'>)
  test_type_conversion_float4 
 -----------------------------
                          100
 (1 row)
 
 SELECT * FROM test_type_conversion_float4(-100);
-INFO:  (-100.0, <type 'float'>)
+INFO:  (-100.0, <class 'float'>)
  test_type_conversion_float4 
 -----------------------------
                         -100
 (1 row)
 
 SELECT * FROM test_type_conversion_float4(5000.5);
-INFO:  (5000.5, <type 'float'>)
+INFO:  (5000.5, <class 'float'>)
  test_type_conversion_float4 
 -----------------------------
                       5000.5
 (1 row)
 
 SELECT * FROM test_type_conversion_float4(null);
-INFO:  (None, <type 'NoneType'>)
+INFO:  (None, <class 'NoneType'>)
  test_type_conversion_float4 
 -----------------------------
                             
@@ -288,37 +288,37 @@ INFO:  (None, <type 'NoneType'>)
 CREATE FUNCTION test_type_conversion_float8(x float8) RETURNS float8 AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_conversion_float8(100);
-INFO:  (100.0, <type 'float'>)
+INFO:  (100.0, <class 'float'>)
  test_type_conversion_float8 
 -----------------------------
                          100
 (1 row)
 
 SELECT * FROM test_type_conversion_float8(-100);
-INFO:  (-100.0, <type 'float'>)
+INFO:  (-100.0, <class 'float'>)
  test_type_conversion_float8 
 -----------------------------
                         -100
 (1 row)
 
 SELECT * FROM test_type_conversion_float8(5000000000.5);
-INFO:  (5000000000.5, <type 'float'>)
+INFO:  (5000000000.5, <class 'float'>)
  test_type_conversion_float8 
 -----------------------------
                 5000000000.5
 (1 row)
 
 SELECT * FROM test_type_conversion_float8(null);
-INFO:  (None, <type 'NoneType'>)
+INFO:  (None, <class 'NoneType'>)
  test_type_conversion_float8 
 -----------------------------
                             
 (1 row)
 
 SELECT * FROM test_type_conversion_float8(100100100.654321);
-INFO:  (100100100.654321, <type 'float'>)
+INFO:  (100100100.654321, <class 'float'>)
  test_type_conversion_float8 
 -----------------------------
             100100100.654321
@@ -327,23 +327,23 @@ INFO:  (100100100.654321, <type 'float'>)
 CREATE FUNCTION test_type_conversion_oid(x oid) RETURNS oid AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_conversion_oid(100);
-INFO:  (100L, <type 'long'>)
+INFO:  (100, <class 'int'>)
  test_type_conversion_oid 
 --------------------------
                       100
 (1 row)
 
 SELECT * FROM test_type_conversion_oid(2147483649);
-INFO:  (2147483649L, <type 'long'>)
+INFO:  (2147483649, <class 'int'>)
  test_type_conversion_oid 
 --------------------------
                2147483649
 (1 row)
 
 SELECT * FROM test_type_conversion_oid(null);
-INFO:  (None, <type 'NoneType'>)
+INFO:  (None, <class 'NoneType'>)
  test_type_conversion_oid 
 --------------------------
                          
@@ -352,16 +352,16 @@ INFO:  (None, <type 'NoneType'>)
 CREATE FUNCTION test_type_conversion_text(x text) RETURNS text AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_conversion_text('hello world');
-INFO:  ('hello world', <type 'str'>)
+INFO:  ('hello world', <class 'str'>)
  test_type_conversion_text 
 ---------------------------
  hello world
 (1 row)
 
 SELECT * FROM test_type_conversion_text(null);
-INFO:  (None, <type 'NoneType'>)
+INFO:  (None, <class 'NoneType'>)
  test_type_conversion_text 
 ---------------------------
  
@@ -370,23 +370,23 @@ INFO:  (None, <type 'NoneType'>)
 CREATE FUNCTION test_type_conversion_bytea(x bytea) RETURNS bytea AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_conversion_bytea('hello world');
-INFO:  ('hello world', <type 'str'>)
+INFO:  (b'hello world', <class 'bytes'>)
  test_type_conversion_bytea 
 ----------------------------
  \x68656c6c6f20776f726c64
 (1 row)
 
 SELECT * FROM test_type_conversion_bytea(E'null\\000byte');
-INFO:  ('null\x00byte', <type 'str'>)
+INFO:  (b'null\x00byte', <class 'bytes'>)
  test_type_conversion_bytea 
 ----------------------------
  \x6e756c6c0062797465
 (1 row)
 
 SELECT * FROM test_type_conversion_bytea(null);
-INFO:  (None, <type 'NoneType'>)
+INFO:  (None, <class 'NoneType'>)
  test_type_conversion_bytea 
 ----------------------------
  
@@ -395,14 +395,14 @@ INFO:  (None, <type 'NoneType'>)
 CREATE FUNCTION test_type_marshal() RETURNS bytea AS $$
 import marshal
 return marshal.dumps('hello world')
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE FUNCTION test_type_unmarshal(x bytea) RETURNS text AS $$
 import marshal
 try:
     return marshal.loads(x)
 except ValueError as e:
     return 'FAILED: ' + str(e)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT test_type_unmarshal(x) FROM test_type_marshal() x;
  test_type_unmarshal 
 ---------------------
@@ -415,7 +415,7 @@ SELECT test_type_unmarshal(x) FROM test_type_marshal() x;
 CREATE DOMAIN booltrue AS bool CHECK (VALUE IS TRUE OR VALUE IS NULL);
 CREATE FUNCTION test_type_conversion_booltrue(x booltrue, y bool) RETURNS booltrue AS $$
 return y
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_conversion_booltrue(true, true);
  test_type_conversion_booltrue 
 -------------------------------
@@ -432,21 +432,21 @@ CREATE DOMAIN uint2 AS int2 CHECK (VALUE >= 0);
 CREATE FUNCTION test_type_conversion_uint2(x uint2, y int) RETURNS uint2 AS $$
 plpy.info(x, type(x))
 return y
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_conversion_uint2(100::uint2, 50);
-INFO:  (100, <type 'int'>)
+INFO:  (100, <class 'int'>)
  test_type_conversion_uint2 
 ----------------------------
                          50
 (1 row)
 
 SELECT * FROM test_type_conversion_uint2(100::uint2, -50);
-INFO:  (100, <type 'int'>)
+INFO:  (100, <class 'int'>)
 ERROR:  value for domain uint2 violates check constraint "uint2_check"
 CONTEXT:  while creating return value
 PL/Python function "test_type_conversion_uint2"
 SELECT * FROM test_type_conversion_uint2(null, 1);
-INFO:  (None, <type 'NoneType'>)
+INFO:  (None, <class 'NoneType'>)
  test_type_conversion_uint2 
 ----------------------------
                           1
@@ -455,7 +455,7 @@ INFO:  (None, <type 'NoneType'>)
 CREATE DOMAIN nnint AS int CHECK (VALUE IS NOT NULL);
 CREATE FUNCTION test_type_conversion_nnint(x nnint, y int) RETURNS nnint AS $$
 return y
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_conversion_nnint(10, 20);
  test_type_conversion_nnint 
 ----------------------------
@@ -472,9 +472,9 @@ CREATE DOMAIN bytea10 AS bytea CHECK (octet_length(VALUE) = 10 AND VALUE IS NOT
 CREATE FUNCTION test_type_conversion_bytea10(x bytea10, y bytea) RETURNS bytea10 AS $$
 plpy.info(x, type(x))
 return y
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_conversion_bytea10('hello wold', 'hello wold');
-INFO:  ('hello wold', <type 'str'>)
+INFO:  (b'hello wold', <class 'bytes'>)
  test_type_conversion_bytea10 
 ------------------------------
  \x68656c6c6f20776f6c64
@@ -483,14 +483,14 @@ INFO:  ('hello wold', <type 'str'>)
 SELECT * FROM test_type_conversion_bytea10('hello world', 'hello wold');
 ERROR:  value for domain bytea10 violates check constraint "bytea10_check"
 SELECT * FROM test_type_conversion_bytea10('hello word', 'hello world');
-INFO:  ('hello word', <type 'str'>)
+INFO:  (b'hello word', <class 'bytes'>)
 ERROR:  value for domain bytea10 violates check constraint "bytea10_check"
 CONTEXT:  while creating return value
 PL/Python function "test_type_conversion_bytea10"
 SELECT * FROM test_type_conversion_bytea10(null, 'hello word');
 ERROR:  value for domain bytea10 violates check constraint "bytea10_check"
 SELECT * FROM test_type_conversion_bytea10('hello word', null);
-INFO:  ('hello word', <type 'str'>)
+INFO:  (b'hello word', <class 'bytes'>)
 ERROR:  value for domain bytea10 violates check constraint "bytea10_check"
 CONTEXT:  while creating return value
 PL/Python function "test_type_conversion_bytea10"
@@ -500,58 +500,58 @@ PL/Python function "test_type_conversion_bytea10"
 CREATE FUNCTION test_type_conversion_array_int4(x int4[]) RETURNS int4[] AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_conversion_array_int4(ARRAY[0, 100]);
-INFO:  ([0, 100], <type 'list'>)
+INFO:  ([0, 100], <class 'list'>)
  test_type_conversion_array_int4 
 ---------------------------------
  {0,100}
 (1 row)
 
 SELECT * FROM test_type_conversion_array_int4(ARRAY[0,-100,55]);
-INFO:  ([0, -100, 55], <type 'list'>)
+INFO:  ([0, -100, 55], <class 'list'>)
  test_type_conversion_array_int4 
 ---------------------------------
  {0,-100,55}
 (1 row)
 
 SELECT * FROM test_type_conversion_array_int4(ARRAY[NULL,1]);
-INFO:  ([None, 1], <type 'list'>)
+INFO:  ([None, 1], <class 'list'>)
  test_type_conversion_array_int4 
 ---------------------------------
  {NULL,1}
 (1 row)
 
 SELECT * FROM test_type_conversion_array_int4(ARRAY[]::integer[]);
-INFO:  ([], <type 'list'>)
+INFO:  ([], <class 'list'>)
  test_type_conversion_array_int4 
 ---------------------------------
  {}
 (1 row)
 
 SELECT * FROM test_type_conversion_array_int4(NULL);
-INFO:  (None, <type 'NoneType'>)
+INFO:  (None, <class 'NoneType'>)
  test_type_conversion_array_int4 
 ---------------------------------
  
 (1 row)
 
 SELECT * FROM test_type_conversion_array_int4(ARRAY[[1,2,3],[4,5,6]]);
-INFO:  ([[1, 2, 3], [4, 5, 6]], <type 'list'>)
+INFO:  ([[1, 2, 3], [4, 5, 6]], <class 'list'>)
  test_type_conversion_array_int4 
 ---------------------------------
  {{1,2,3},{4,5,6}}
 (1 row)
 
 SELECT * FROM test_type_conversion_array_int4(ARRAY[[[1,2,NULL],[NULL,5,6]],[[NULL,8,9],[10,11,12]]]);
-INFO:  ([[[1, 2, None], [None, 5, 6]], [[None, 8, 9], [10, 11, 12]]], <type 'list'>)
+INFO:  ([[[1, 2, None], [None, 5, 6]], [[None, 8, 9], [10, 11, 12]]], <class 'list'>)
           test_type_conversion_array_int4          
 ---------------------------------------------------
  {{{1,2,NULL},{NULL,5,6}},{{NULL,8,9},{10,11,12}}}
 (1 row)
 
 SELECT * FROM test_type_conversion_array_int4('[2:4]={1,2,3}');
-INFO:  ([1, 2, 3], <type 'list'>)
+INFO:  ([1, 2, 3], <class 'list'>)
  test_type_conversion_array_int4 
 ---------------------------------
  {1,2,3}
@@ -560,9 +560,9 @@ INFO:  ([1, 2, 3], <type 'list'>)
 CREATE FUNCTION test_type_conversion_array_int8(x int8[]) RETURNS int8[] AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_conversion_array_int8(ARRAY[[[1,2,NULL],[NULL,5,6]],[[NULL,8,9],[10,11,12]]]::int8[]);
-INFO:  ([[[1L, 2L, None], [None, 5L, 6L]], [[None, 8L, 9L], [10L, 11L, 12L]]], <type 'list'>)
+INFO:  ([[[1, 2, None], [None, 5, 6]], [[None, 8, 9], [10, 11, 12]]], <class 'list'>)
           test_type_conversion_array_int8          
 ---------------------------------------------------
  {{{1,2,NULL},{NULL,5,6}},{{NULL,8,9},{10,11,12}}}
@@ -571,10 +571,10 @@ INFO:  ([[[1L, 2L, None], [None, 5L, 6L]], [[None, 8L, 9L], [10L, 11L, 12L]]], <
 CREATE FUNCTION test_type_conversion_array_date(x date[]) RETURNS date[] AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_conversion_array_date(ARRAY[[['2016-09-21','2016-09-22',NULL],[NULL,'2016-10-21','2016-10-22']],
             [[NULL,'2016-11-21','2016-10-21'],['2015-09-21','2015-09-22','2014-09-21']]]::date[]);
-INFO:  ([[['09-21-2016', '09-22-2016', None], [None, '10-21-2016', '10-22-2016']], [[None, '11-21-2016', '10-21-2016'], ['09-21-2015', '09-22-2015', '09-21-2014']]], <type 'list'>)
+INFO:  ([[['09-21-2016', '09-22-2016', None], [None, '10-21-2016', '10-22-2016']], [[None, '11-21-2016', '10-21-2016'], ['09-21-2015', '09-22-2015', '09-21-2014']]], <class 'list'>)
                                                  test_type_conversion_array_date                                                 
 ---------------------------------------------------------------------------------------------------------------------------------
  {{{09-21-2016,09-22-2016,NULL},{NULL,10-21-2016,10-22-2016}},{{NULL,11-21-2016,10-21-2016},{09-21-2015,09-22-2015,09-21-2014}}}
@@ -583,12 +583,12 @@ INFO:  ([[['09-21-2016', '09-22-2016', None], [None, '10-21-2016', '10-22-2016']
 CREATE FUNCTION test_type_conversion_array_timestamp(x timestamp[]) RETURNS timestamp[] AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_conversion_array_timestamp(ARRAY[[['2016-09-21 15:34:24.078792-04','2016-10-22 11:34:24.078795-04',NULL],
             [NULL,'2016-10-21 11:34:25.078792-04','2016-10-21 11:34:24.098792-04']],
             [[NULL,'2016-01-21 11:34:24.078792-04','2016-11-21 11:34:24.108792-04'],
             ['2015-09-21 11:34:24.079792-04','2014-09-21 11:34:24.078792-04','2013-09-21 11:34:24.078792-04']]]::timestamp[]);
-INFO:  ([[['Wed Sep 21 15:34:24.078792 2016', 'Sat Oct 22 11:34:24.078795 2016', None], [None, 'Fri Oct 21 11:34:25.078792 2016', 'Fri Oct 21 11:34:24.098792 2016']], [[None, 'Thu Jan 21 11:34:24.078792 2016', 'Mon Nov 21 11:34:24.108792 2016'], ['Mon Sep 21 11:34:24.079792 2015', 'Sun Sep 21 11:34:24.078792 2014', 'Sat Sep 21 11:34:24.078792 2013']]], <type 'list'>)
+INFO:  ([[['Wed Sep 21 15:34:24.078792 2016', 'Sat Oct 22 11:34:24.078795 2016', None], [None, 'Fri Oct 21 11:34:25.078792 2016', 'Fri Oct 21 11:34:24.098792 2016']], [[None, 'Thu Jan 21 11:34:24.078792 2016', 'Mon Nov 21 11:34:24.108792 2016'], ['Mon Sep 21 11:34:24.079792 2015', 'Sun Sep 21 11:34:24.078792 2014', 'Sat Sep 21 11:34:24.078792 2013']]], <class 'list'>)
                                                                                                                                                       test_type_conversion_array_timestamp                                                                                                                                                      
 ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
  {{{"Wed Sep 21 15:34:24.078792 2016","Sat Oct 22 11:34:24.078795 2016",NULL},{NULL,"Fri Oct 21 11:34:25.078792 2016","Fri Oct 21 11:34:24.098792 2016"}},{{NULL,"Thu Jan 21 11:34:24.078792 2016","Mon Nov 21 11:34:24.108792 2016"},{"Mon Sep 21 11:34:24.079792 2015","Sun Sep 21 11:34:24.078792 2014","Sat Sep 21 11:34:24.078792 2013"}}}
@@ -598,9 +598,9 @@ CREATE OR REPLACE FUNCTION pyreturnmultidemint4(h int4, i int4, j int4, k int4 )
 m = [[[[x for x in range(h)] for y in range(i)] for z in range(j)] for w in range(k)]
 plpy.info(m, type(m))
 return m
-$BODY$ LANGUAGE plpythonu;
+$BODY$ LANGUAGE plpython3u;
 select pyreturnmultidemint4(8,5,3,2);
-INFO:  ([[[[0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7]], [[0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7]], [[0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7]]], [[[0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7]], [[0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7]], [[0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7]]]], <type 'list'>)
+INFO:  ([[[[0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7]], [[0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7]], [[0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7]]], [[[0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7]], [[0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7]], [[0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7]]]], <class 'list'>)
                                                                                                                                                                                                                                                                              pyreturnmultidemint4                                                                                                                                                                                                                                                                              
 -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
  {{{{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7}},{{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7}},{{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7}}},{{{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7}},{{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7}},{{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7}}}}
@@ -610,9 +610,9 @@ CREATE OR REPLACE FUNCTION pyreturnmultidemint8(h int4, i int4, j int4, k int4 )
 m = [[[[x for x in range(h)] for y in range(i)] for z in range(j)] for w in range(k)]
 plpy.info(m, type(m))
 return m
-$BODY$ LANGUAGE plpythonu;
+$BODY$ LANGUAGE plpython3u;
 select pyreturnmultidemint8(5,5,3,2);
-INFO:  ([[[[0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4]], [[0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4]], [[0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4]]], [[[0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4]], [[0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4]], [[0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4]]]], <type 'list'>)
+INFO:  ([[[[0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4]], [[0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4]], [[0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4]]], [[[0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4]], [[0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4]], [[0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4]]]], <class 'list'>)
                                                                                                                                                                                    pyreturnmultidemint8                                                                                                                                                                                    
 -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
  {{{{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4}},{{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4}},{{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4}}},{{{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4}},{{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4}},{{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4}}}}
@@ -622,9 +622,9 @@ CREATE OR REPLACE FUNCTION pyreturnmultidemfloat4(h int4, i int4, j int4, k int4
 m = [[[[x for x in range(h)] for y in range(i)] for z in range(j)] for w in range(k)]
 plpy.info(m, type(m))
 return m
-$BODY$ LANGUAGE plpythonu;
+$BODY$ LANGUAGE plpython3u;
 select pyreturnmultidemfloat4(6,5,3,2);
-INFO:  ([[[[0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5]], [[0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5]], [[0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5]]], [[[0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5]], [[0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5]], [[0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5]]]], <type 'list'>)
+INFO:  ([[[[0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5]], [[0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5]], [[0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5]]], [[[0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5]], [[0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5]], [[0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5]]]], <class 'list'>)
                                                                                                                                                                                                                 pyreturnmultidemfloat4                                                                                                                                                                                                                 
 -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
  {{{{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5}},{{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5}},{{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5}}},{{{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5}},{{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5}},{{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5}}}}
@@ -634,9 +634,9 @@ CREATE OR REPLACE FUNCTION pyreturnmultidemfloat8(h int4, i int4, j int4, k int4
 m = [[[[x for x in range(h)] for y in range(i)] for z in range(j)] for w in range(k)]
 plpy.info(m, type(m))
 return m
-$BODY$ LANGUAGE plpythonu;
+$BODY$ LANGUAGE plpython3u;
 select pyreturnmultidemfloat8(7,5,3,2);
-INFO:  ([[[[0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6]], [[0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6]], [[0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6]]], [[[0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6]], [[0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6]], [[0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6]]]], <type 'list'>)
+INFO:  ([[[[0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6]], [[0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6]], [[0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6]]], [[[0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6]], [[0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6]], [[0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6]]]], <class 'list'>)
                                                                                                                                                                                                                                               pyreturnmultidemfloat8                                                                                                                                                                                                                                               
 -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
  {{{{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6}},{{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6}},{{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6}}},{{{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6}},{{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6}},{{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6}}}}
@@ -645,16 +645,16 @@ INFO:  ([[[[0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6],
 CREATE FUNCTION test_type_conversion_array_text(x text[]) RETURNS text[] AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_conversion_array_text(ARRAY['foo', 'bar']);
-INFO:  (['foo', 'bar'], <type 'list'>)
+INFO:  (['foo', 'bar'], <class 'list'>)
  test_type_conversion_array_text 
 ---------------------------------
  {foo,bar}
 (1 row)
 
 SELECT * FROM test_type_conversion_array_text(ARRAY[['foo', 'bar'],['foo2', 'bar2']]);
-INFO:  ([['foo', 'bar'], ['foo2', 'bar2']], <type 'list'>)
+INFO:  ([['foo', 'bar'], ['foo2', 'bar2']], <class 'list'>)
  test_type_conversion_array_text 
 ---------------------------------
  {{foo,bar},{foo2,bar2}}
@@ -663,9 +663,9 @@ INFO:  ([['foo', 'bar'], ['foo2', 'bar2']], <type 'list'>)
 CREATE FUNCTION test_type_conversion_array_bytea(x bytea[]) RETURNS bytea[] AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_conversion_array_bytea(ARRAY[E'\\xdeadbeef'::bytea, NULL]);
-INFO:  (['\xde\xad\xbe\xef', None], <type 'list'>)
+INFO:  ([b'\xde\xad\xbe\xef', None], <class 'list'>)
  test_type_conversion_array_bytea 
 ----------------------------------
  {"\\xdeadbeef",NULL}
@@ -673,7 +673,7 @@ INFO:  (['\xde\xad\xbe\xef', None], <type 'list'>)
 
 CREATE FUNCTION test_type_conversion_array_mixed1() RETURNS text[] AS $$
 return [123, 'abc']
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_conversion_array_mixed1();
  test_type_conversion_array_mixed1 
 -----------------------------------
@@ -682,14 +682,14 @@ SELECT * FROM test_type_conversion_array_mixed1();
 
 CREATE FUNCTION test_type_conversion_array_mixed2() RETURNS int[] AS $$
 return [123, 'abc']
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_conversion_array_mixed2();
 ERROR:  invalid input syntax for type integer: "abc"
 CONTEXT:  while creating return value
 PL/Python function "test_type_conversion_array_mixed2"
 CREATE FUNCTION test_type_conversion_mdarray_malformed() RETURNS int[] AS $$
 return [[1,2,3],[4,5]]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_conversion_mdarray_malformed();
 ERROR:  wrong length of inner sequence: has length 2, but 3 was expected
 DETAIL:  To construct a multidimensional array, the inner sequences must all have the same length.
@@ -697,14 +697,14 @@ CONTEXT:  while creating return value
 PL/Python function "test_type_conversion_mdarray_malformed"
 CREATE FUNCTION test_type_conversion_mdarray_toodeep() RETURNS int[] AS $$
 return [[[[[[[1]]]]]]]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_conversion_mdarray_toodeep();
 ERROR:  number of array dimensions exceeds the maximum allowed (6)
 CONTEXT:  while creating return value
 PL/Python function "test_type_conversion_mdarray_toodeep"
 CREATE FUNCTION test_type_conversion_array_record() RETURNS type_record[] AS $$
 return [{'first': 'one', 'second': 42}, {'first': 'two', 'second': 11}]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_conversion_array_record();
  test_type_conversion_array_record 
 -----------------------------------
@@ -713,7 +713,7 @@ SELECT * FROM test_type_conversion_array_record();
 
 CREATE FUNCTION test_type_conversion_array_string() RETURNS text[] AS $$
 return 'abc'
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_conversion_array_string();
  test_type_conversion_array_string 
 -----------------------------------
@@ -722,7 +722,7 @@ SELECT * FROM test_type_conversion_array_string();
 
 CREATE FUNCTION test_type_conversion_array_tuple() RETURNS text[] AS $$
 return ('abc', 'def')
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_conversion_array_tuple();
  test_type_conversion_array_tuple 
 ----------------------------------
@@ -731,7 +731,7 @@ SELECT * FROM test_type_conversion_array_tuple();
 
 CREATE FUNCTION test_type_conversion_array_error() RETURNS int[] AS $$
 return 5
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_conversion_array_error();
 ERROR:  return value of function with array return type is not a Python sequence
 CONTEXT:  while creating return value
@@ -743,16 +743,16 @@ CREATE DOMAIN ordered_pair_domain AS integer[] CHECK (array_length(VALUE,1)=2 AN
 CREATE FUNCTION test_type_conversion_array_domain(x ordered_pair_domain) RETURNS ordered_pair_domain AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_conversion_array_domain(ARRAY[0, 100]::ordered_pair_domain);
-INFO:  ([0, 100], <type 'list'>)
+INFO:  ([0, 100], <class 'list'>)
  test_type_conversion_array_domain 
 -----------------------------------
  {0,100}
 (1 row)
 
 SELECT * FROM test_type_conversion_array_domain(NULL::ordered_pair_domain);
-INFO:  (None, <type 'NoneType'>)
+INFO:  (None, <class 'NoneType'>)
  test_type_conversion_array_domain 
 -----------------------------------
  
@@ -760,7 +760,7 @@ INFO:  (None, <type 'NoneType'>)
 
 CREATE FUNCTION test_type_conversion_array_domain_check_violation() RETURNS ordered_pair_domain AS $$
 return [2,1]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_conversion_array_domain_check_violation();
 ERROR:  value for domain ordered_pair_domain violates check constraint "ordered_pair_domain_check"
 CONTEXT:  while creating return value
@@ -771,9 +771,9 @@ PL/Python function "test_type_conversion_array_domain_check_violation"
 CREATE FUNCTION test_read_uint2_array(x uint2[]) RETURNS uint2 AS $$
 plpy.info(x, type(x))
 return x[0]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 select test_read_uint2_array(array[1::uint2]);
-INFO:  ([1], <type 'list'>)
+INFO:  ([1], <class 'list'>)
  test_read_uint2_array 
 -----------------------
                      1
@@ -781,7 +781,7 @@ INFO:  ([1], <type 'list'>)
 
 CREATE FUNCTION test_build_uint2_array(x int2) RETURNS uint2[] AS $$
 return [x, x]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 select test_build_uint2_array(1::int2);
  test_build_uint2_array 
 ------------------------
@@ -800,7 +800,7 @@ PL/Python function "test_build_uint2_array"
 CREATE FUNCTION test_type_conversion_domain_array(x integer[])
   RETURNS ordered_pair_domain[] AS $$
 return [x, x]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 select test_type_conversion_domain_array(array[2,4]);
 ERROR:  return value of function with array return type is not a Python sequence
 CONTEXT:  while creating return value
@@ -813,9 +813,9 @@ CREATE FUNCTION test_type_conversion_domain_array2(x ordered_pair_domain)
   RETURNS integer AS $$
 plpy.info(x, type(x))
 return x[1]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 select test_type_conversion_domain_array2(array[2,4]);
-INFO:  ([2, 4], <type 'list'>)
+INFO:  ([2, 4], <class 'list'>)
  test_type_conversion_domain_array2 
 ------------------------------------
                                   4
@@ -827,9 +827,9 @@ CREATE FUNCTION test_type_conversion_array_domain_array(x ordered_pair_domain[])
   RETURNS ordered_pair_domain AS $$
 plpy.info(x, type(x))
 return x[0]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 select test_type_conversion_array_domain_array(array[array[2,4]::ordered_pair_domain]);
-INFO:  ([[2, 4]], <type 'list'>)
+INFO:  ([[2, 4]], <class 'list'>)
  test_type_conversion_array_domain_array 
 -----------------------------------------
  {2,4}
@@ -846,7 +846,7 @@ CREATE TABLE employee (
 INSERT INTO employee VALUES ('John', 100, 10), ('Mary', 200, 10);
 CREATE OR REPLACE FUNCTION test_composite_table_input(e employee) RETURNS integer AS $$
 return e['basesalary'] + e['bonus']
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT name, test_composite_table_input(employee.*) FROM employee;
  name | test_composite_table_input 
 ------+----------------------------
@@ -876,7 +876,7 @@ CREATE TYPE named_pair AS (
 );
 CREATE OR REPLACE FUNCTION test_composite_type_input(p named_pair) RETURNS integer AS $$
 return sum(p.values())
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT test_composite_type_input(row(1, 2));
  test_composite_type_input 
 ---------------------------
@@ -896,7 +896,7 @@ SELECT test_composite_type_input(row(1, 2));
 CREATE TYPE nnint_container AS (f1 int, f2 nnint);
 CREATE FUNCTION nnint_test(x int, y int) RETURNS nnint_container AS $$
 return {'f1': x, 'f2': y}
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT nnint_test(null, 3);
  nnint_test 
 ------------
@@ -913,7 +913,7 @@ PL/Python function "nnint_test"
 CREATE DOMAIN ordered_named_pair AS named_pair_2 CHECK((VALUE).i <= (VALUE).j);
 CREATE FUNCTION read_ordered_named_pair(p ordered_named_pair) RETURNS integer AS $$
 return p['i'] + p['j']
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT read_ordered_named_pair(row(1, 2));
  read_ordered_named_pair 
 -------------------------
@@ -924,7 +924,7 @@ SELECT read_ordered_named_pair(row(2, 1));  -- fail
 ERROR:  value for domain ordered_named_pair violates check constraint "ordered_named_pair_check"
 CREATE FUNCTION build_ordered_named_pair(i int, j int) RETURNS ordered_named_pair AS $$
 return {'i': i, 'j': j}
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT build_ordered_named_pair(1,2);
  build_ordered_named_pair 
 --------------------------
@@ -937,7 +937,7 @@ CONTEXT:  while creating return value
 PL/Python function "build_ordered_named_pair"
 CREATE FUNCTION build_ordered_named_pairs(i int, j int) RETURNS ordered_named_pair[] AS $$
 return [{'i': i, 'j': j}, {'i': i, 'j': j+1}]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT build_ordered_named_pairs(1,2);
  build_ordered_named_pairs 
 ---------------------------
@@ -952,7 +952,7 @@ PL/Python function "build_ordered_named_pairs"
 -- Prepared statements
 --
 CREATE OR REPLACE FUNCTION test_prep_bool_input() RETURNS int
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 AS $$
 plan = plpy.prepare("SELECT CASE WHEN $1 THEN 1 ELSE 0 END AS val", ['boolean'])
 rv = plpy.execute(plan, ['fa'], 5) # 'fa' is true in Python
@@ -965,7 +965,7 @@ SELECT test_prep_bool_input(); -- 1
 (1 row)
 
 CREATE OR REPLACE FUNCTION test_prep_bool_output() RETURNS bool
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 AS $$
 plan = plpy.prepare("SELECT $1 = 1 AS val", ['int'])
 rv = plpy.execute(plan, [0], 5)
@@ -980,7 +980,7 @@ INFO:  {'val': False}
 (1 row)
 
 CREATE OR REPLACE FUNCTION test_prep_bytea_input(bb bytea) RETURNS int
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 AS $$
 plan = plpy.prepare("SELECT octet_length($1) AS val", ['bytea'])
 rv = plpy.execute(plan, [bb], 5)
@@ -993,7 +993,7 @@ SELECT test_prep_bytea_input(E'a\\000b'); -- 3 (embedded null formerly truncated
 (1 row)
 
 CREATE OR REPLACE FUNCTION test_prep_bytea_output() RETURNS bytea
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 AS $$
 plan = plpy.prepare("SELECT decode('aa00bb', 'hex') AS val")
 rv = plpy.execute(plan, [], 5)
@@ -1001,7 +1001,7 @@ plpy.info(rv[0])
 return rv[0]['val']
 $$;
 SELECT test_prep_bytea_output();
-INFO:  {'val': '\xaa\x00\xbb'}
+INFO:  {'val': b'\xaa\x00\xbb'}
  test_prep_bytea_output 
 ------------------------
  \xaa00bb
diff --git a/src/pl/plpython/expected/plpython_types_3.out b/src/pl/plpython/expected/plpython_types_3.out
deleted file mode 100644
index a6ec10d5e18..00000000000
--- a/src/pl/plpython/expected/plpython_types_3.out
+++ /dev/null
@@ -1,1009 +0,0 @@
---
--- Test data type behavior
---
---
--- Base/common types
---
-CREATE FUNCTION test_type_conversion_bool(x bool) RETURNS bool AS $$
-plpy.info(x, type(x))
-return x
-$$ LANGUAGE plpython3u;
-SELECT * FROM test_type_conversion_bool(true);
-INFO:  (True, <class 'bool'>)
- test_type_conversion_bool 
----------------------------
- t
-(1 row)
-
-SELECT * FROM test_type_conversion_bool(false);
-INFO:  (False, <class 'bool'>)
- test_type_conversion_bool 
----------------------------
- f
-(1 row)
-
-SELECT * FROM test_type_conversion_bool(null);
-INFO:  (None, <class 'NoneType'>)
- test_type_conversion_bool 
----------------------------
- 
-(1 row)
-
--- test various other ways to express Booleans in Python
-CREATE FUNCTION test_type_conversion_bool_other(n int) RETURNS bool AS $$
-# numbers
-if n == 0:
-   ret = 0
-elif n == 1:
-   ret = 5
-# strings
-elif n == 2:
-   ret = ''
-elif n == 3:
-   ret = 'fa' # true in Python, false in PostgreSQL
-# containers
-elif n == 4:
-   ret = []
-elif n == 5:
-   ret = [0]
-plpy.info(ret, not not ret)
-return ret
-$$ LANGUAGE plpython3u;
-SELECT * FROM test_type_conversion_bool_other(0);
-INFO:  (0, False)
- test_type_conversion_bool_other 
----------------------------------
- f
-(1 row)
-
-SELECT * FROM test_type_conversion_bool_other(1);
-INFO:  (5, True)
- test_type_conversion_bool_other 
----------------------------------
- t
-(1 row)
-
-SELECT * FROM test_type_conversion_bool_other(2);
-INFO:  ('', False)
- test_type_conversion_bool_other 
----------------------------------
- f
-(1 row)
-
-SELECT * FROM test_type_conversion_bool_other(3);
-INFO:  ('fa', True)
- test_type_conversion_bool_other 
----------------------------------
- t
-(1 row)
-
-SELECT * FROM test_type_conversion_bool_other(4);
-INFO:  ([], False)
- test_type_conversion_bool_other 
----------------------------------
- f
-(1 row)
-
-SELECT * FROM test_type_conversion_bool_other(5);
-INFO:  ([0], True)
- test_type_conversion_bool_other 
----------------------------------
- t
-(1 row)
-
-CREATE FUNCTION test_type_conversion_char(x char) RETURNS char AS $$
-plpy.info(x, type(x))
-return x
-$$ LANGUAGE plpython3u;
-SELECT * FROM test_type_conversion_char('a');
-INFO:  ('a', <class 'str'>)
- test_type_conversion_char 
----------------------------
- a
-(1 row)
-
-SELECT * FROM test_type_conversion_char(null);
-INFO:  (None, <class 'NoneType'>)
- test_type_conversion_char 
----------------------------
- 
-(1 row)
-
-CREATE FUNCTION test_type_conversion_int2(x int2) RETURNS int2 AS $$
-plpy.info(x, type(x))
-return x
-$$ LANGUAGE plpython3u;
-SELECT * FROM test_type_conversion_int2(100::int2);
-INFO:  (100, <class 'int'>)
- test_type_conversion_int2 
----------------------------
-                       100
-(1 row)
-
-SELECT * FROM test_type_conversion_int2(-100::int2);
-INFO:  (-100, <class 'int'>)
- test_type_conversion_int2 
----------------------------
-                      -100
-(1 row)
-
-SELECT * FROM test_type_conversion_int2(null);
-INFO:  (None, <class 'NoneType'>)
- test_type_conversion_int2 
----------------------------
-                          
-(1 row)
-
-CREATE FUNCTION test_type_conversion_int4(x int4) RETURNS int4 AS $$
-plpy.info(x, type(x))
-return x
-$$ LANGUAGE plpython3u;
-SELECT * FROM test_type_conversion_int4(100);
-INFO:  (100, <class 'int'>)
- test_type_conversion_int4 
----------------------------
-                       100
-(1 row)
-
-SELECT * FROM test_type_conversion_int4(-100);
-INFO:  (-100, <class 'int'>)
- test_type_conversion_int4 
----------------------------
-                      -100
-(1 row)
-
-SELECT * FROM test_type_conversion_int4(null);
-INFO:  (None, <class 'NoneType'>)
- test_type_conversion_int4 
----------------------------
-                          
-(1 row)
-
-CREATE FUNCTION test_type_conversion_int8(x int8) RETURNS int8 AS $$
-plpy.info(x, type(x))
-return x
-$$ LANGUAGE plpython3u;
-SELECT * FROM test_type_conversion_int8(100);
-INFO:  (100, <class 'int'>)
- test_type_conversion_int8 
----------------------------
-                       100
-(1 row)
-
-SELECT * FROM test_type_conversion_int8(-100);
-INFO:  (-100, <class 'int'>)
- test_type_conversion_int8 
----------------------------
-                      -100
-(1 row)
-
-SELECT * FROM test_type_conversion_int8(5000000000);
-INFO:  (5000000000, <class 'int'>)
- test_type_conversion_int8 
----------------------------
-                5000000000
-(1 row)
-
-SELECT * FROM test_type_conversion_int8(null);
-INFO:  (None, <class 'NoneType'>)
- test_type_conversion_int8 
----------------------------
-                          
-(1 row)
-
-CREATE FUNCTION test_type_conversion_numeric(x numeric) RETURNS numeric AS $$
-# print just the class name, not the type, to avoid differences
-# between decimal and cdecimal
-plpy.info(str(x), x.__class__.__name__)
-return x
-$$ LANGUAGE plpython3u;
-SELECT * FROM test_type_conversion_numeric(100);
-INFO:  ('100', 'Decimal')
- test_type_conversion_numeric 
-------------------------------
-                          100
-(1 row)
-
-SELECT * FROM test_type_conversion_numeric(-100);
-INFO:  ('-100', 'Decimal')
- test_type_conversion_numeric 
-------------------------------
-                         -100
-(1 row)
-
-SELECT * FROM test_type_conversion_numeric(100.0);
-INFO:  ('100.0', 'Decimal')
- test_type_conversion_numeric 
-------------------------------
-                        100.0
-(1 row)
-
-SELECT * FROM test_type_conversion_numeric(100.00);
-INFO:  ('100.00', 'Decimal')
- test_type_conversion_numeric 
-------------------------------
-                       100.00
-(1 row)
-
-SELECT * FROM test_type_conversion_numeric(5000000000.5);
-INFO:  ('5000000000.5', 'Decimal')
- test_type_conversion_numeric 
-------------------------------
-                 5000000000.5
-(1 row)
-
-SELECT * FROM test_type_conversion_numeric(1234567890.0987654321);
-INFO:  ('1234567890.0987654321', 'Decimal')
- test_type_conversion_numeric 
-------------------------------
-        1234567890.0987654321
-(1 row)
-
-SELECT * FROM test_type_conversion_numeric(-1234567890.0987654321);
-INFO:  ('-1234567890.0987654321', 'Decimal')
- test_type_conversion_numeric 
-------------------------------
-       -1234567890.0987654321
-(1 row)
-
-SELECT * FROM test_type_conversion_numeric(null);
-INFO:  ('None', 'NoneType')
- test_type_conversion_numeric 
-------------------------------
-                             
-(1 row)
-
-CREATE FUNCTION test_type_conversion_float4(x float4) RETURNS float4 AS $$
-plpy.info(x, type(x))
-return x
-$$ LANGUAGE plpython3u;
-SELECT * FROM test_type_conversion_float4(100);
-INFO:  (100.0, <class 'float'>)
- test_type_conversion_float4 
------------------------------
-                         100
-(1 row)
-
-SELECT * FROM test_type_conversion_float4(-100);
-INFO:  (-100.0, <class 'float'>)
- test_type_conversion_float4 
------------------------------
-                        -100
-(1 row)
-
-SELECT * FROM test_type_conversion_float4(5000.5);
-INFO:  (5000.5, <class 'float'>)
- test_type_conversion_float4 
------------------------------
-                      5000.5
-(1 row)
-
-SELECT * FROM test_type_conversion_float4(null);
-INFO:  (None, <class 'NoneType'>)
- test_type_conversion_float4 
------------------------------
-                            
-(1 row)
-
-CREATE FUNCTION test_type_conversion_float8(x float8) RETURNS float8 AS $$
-plpy.info(x, type(x))
-return x
-$$ LANGUAGE plpython3u;
-SELECT * FROM test_type_conversion_float8(100);
-INFO:  (100.0, <class 'float'>)
- test_type_conversion_float8 
------------------------------
-                         100
-(1 row)
-
-SELECT * FROM test_type_conversion_float8(-100);
-INFO:  (-100.0, <class 'float'>)
- test_type_conversion_float8 
------------------------------
-                        -100
-(1 row)
-
-SELECT * FROM test_type_conversion_float8(5000000000.5);
-INFO:  (5000000000.5, <class 'float'>)
- test_type_conversion_float8 
------------------------------
-                5000000000.5
-(1 row)
-
-SELECT * FROM test_type_conversion_float8(null);
-INFO:  (None, <class 'NoneType'>)
- test_type_conversion_float8 
------------------------------
-                            
-(1 row)
-
-SELECT * FROM test_type_conversion_float8(100100100.654321);
-INFO:  (100100100.654321, <class 'float'>)
- test_type_conversion_float8 
------------------------------
-            100100100.654321
-(1 row)
-
-CREATE FUNCTION test_type_conversion_oid(x oid) RETURNS oid AS $$
-plpy.info(x, type(x))
-return x
-$$ LANGUAGE plpython3u;
-SELECT * FROM test_type_conversion_oid(100);
-INFO:  (100, <class 'int'>)
- test_type_conversion_oid 
---------------------------
-                      100
-(1 row)
-
-SELECT * FROM test_type_conversion_oid(2147483649);
-INFO:  (2147483649, <class 'int'>)
- test_type_conversion_oid 
---------------------------
-               2147483649
-(1 row)
-
-SELECT * FROM test_type_conversion_oid(null);
-INFO:  (None, <class 'NoneType'>)
- test_type_conversion_oid 
---------------------------
-                         
-(1 row)
-
-CREATE FUNCTION test_type_conversion_text(x text) RETURNS text AS $$
-plpy.info(x, type(x))
-return x
-$$ LANGUAGE plpython3u;
-SELECT * FROM test_type_conversion_text('hello world');
-INFO:  ('hello world', <class 'str'>)
- test_type_conversion_text 
----------------------------
- hello world
-(1 row)
-
-SELECT * FROM test_type_conversion_text(null);
-INFO:  (None, <class 'NoneType'>)
- test_type_conversion_text 
----------------------------
- 
-(1 row)
-
-CREATE FUNCTION test_type_conversion_bytea(x bytea) RETURNS bytea AS $$
-plpy.info(x, type(x))
-return x
-$$ LANGUAGE plpython3u;
-SELECT * FROM test_type_conversion_bytea('hello world');
-INFO:  (b'hello world', <class 'bytes'>)
- test_type_conversion_bytea 
-----------------------------
- \x68656c6c6f20776f726c64
-(1 row)
-
-SELECT * FROM test_type_conversion_bytea(E'null\\000byte');
-INFO:  (b'null\x00byte', <class 'bytes'>)
- test_type_conversion_bytea 
-----------------------------
- \x6e756c6c0062797465
-(1 row)
-
-SELECT * FROM test_type_conversion_bytea(null);
-INFO:  (None, <class 'NoneType'>)
- test_type_conversion_bytea 
-----------------------------
- 
-(1 row)
-
-CREATE FUNCTION test_type_marshal() RETURNS bytea AS $$
-import marshal
-return marshal.dumps('hello world')
-$$ LANGUAGE plpython3u;
-CREATE FUNCTION test_type_unmarshal(x bytea) RETURNS text AS $$
-import marshal
-try:
-    return marshal.loads(x)
-except ValueError as e:
-    return 'FAILED: ' + str(e)
-$$ LANGUAGE plpython3u;
-SELECT test_type_unmarshal(x) FROM test_type_marshal() x;
- test_type_unmarshal 
----------------------
- hello world
-(1 row)
-
---
--- Domains
---
-CREATE DOMAIN booltrue AS bool CHECK (VALUE IS TRUE OR VALUE IS NULL);
-CREATE FUNCTION test_type_conversion_booltrue(x booltrue, y bool) RETURNS booltrue AS $$
-return y
-$$ LANGUAGE plpython3u;
-SELECT * FROM test_type_conversion_booltrue(true, true);
- test_type_conversion_booltrue 
--------------------------------
- t
-(1 row)
-
-SELECT * FROM test_type_conversion_booltrue(false, true);
-ERROR:  value for domain booltrue violates check constraint "booltrue_check"
-SELECT * FROM test_type_conversion_booltrue(true, false);
-ERROR:  value for domain booltrue violates check constraint "booltrue_check"
-CONTEXT:  while creating return value
-PL/Python function "test_type_conversion_booltrue"
-CREATE DOMAIN uint2 AS int2 CHECK (VALUE >= 0);
-CREATE FUNCTION test_type_conversion_uint2(x uint2, y int) RETURNS uint2 AS $$
-plpy.info(x, type(x))
-return y
-$$ LANGUAGE plpython3u;
-SELECT * FROM test_type_conversion_uint2(100::uint2, 50);
-INFO:  (100, <class 'int'>)
- test_type_conversion_uint2 
-----------------------------
-                         50
-(1 row)
-
-SELECT * FROM test_type_conversion_uint2(100::uint2, -50);
-INFO:  (100, <class 'int'>)
-ERROR:  value for domain uint2 violates check constraint "uint2_check"
-CONTEXT:  while creating return value
-PL/Python function "test_type_conversion_uint2"
-SELECT * FROM test_type_conversion_uint2(null, 1);
-INFO:  (None, <class 'NoneType'>)
- test_type_conversion_uint2 
-----------------------------
-                          1
-(1 row)
-
-CREATE DOMAIN nnint AS int CHECK (VALUE IS NOT NULL);
-CREATE FUNCTION test_type_conversion_nnint(x nnint, y int) RETURNS nnint AS $$
-return y
-$$ LANGUAGE plpython3u;
-SELECT * FROM test_type_conversion_nnint(10, 20);
- test_type_conversion_nnint 
-----------------------------
-                         20
-(1 row)
-
-SELECT * FROM test_type_conversion_nnint(null, 20);
-ERROR:  value for domain nnint violates check constraint "nnint_check"
-SELECT * FROM test_type_conversion_nnint(10, null);
-ERROR:  value for domain nnint violates check constraint "nnint_check"
-CONTEXT:  while creating return value
-PL/Python function "test_type_conversion_nnint"
-CREATE DOMAIN bytea10 AS bytea CHECK (octet_length(VALUE) = 10 AND VALUE IS NOT NULL);
-CREATE FUNCTION test_type_conversion_bytea10(x bytea10, y bytea) RETURNS bytea10 AS $$
-plpy.info(x, type(x))
-return y
-$$ LANGUAGE plpython3u;
-SELECT * FROM test_type_conversion_bytea10('hello wold', 'hello wold');
-INFO:  (b'hello wold', <class 'bytes'>)
- test_type_conversion_bytea10 
-------------------------------
- \x68656c6c6f20776f6c64
-(1 row)
-
-SELECT * FROM test_type_conversion_bytea10('hello world', 'hello wold');
-ERROR:  value for domain bytea10 violates check constraint "bytea10_check"
-SELECT * FROM test_type_conversion_bytea10('hello word', 'hello world');
-INFO:  (b'hello word', <class 'bytes'>)
-ERROR:  value for domain bytea10 violates check constraint "bytea10_check"
-CONTEXT:  while creating return value
-PL/Python function "test_type_conversion_bytea10"
-SELECT * FROM test_type_conversion_bytea10(null, 'hello word');
-ERROR:  value for domain bytea10 violates check constraint "bytea10_check"
-SELECT * FROM test_type_conversion_bytea10('hello word', null);
-INFO:  (b'hello word', <class 'bytes'>)
-ERROR:  value for domain bytea10 violates check constraint "bytea10_check"
-CONTEXT:  while creating return value
-PL/Python function "test_type_conversion_bytea10"
---
--- Arrays
---
-CREATE FUNCTION test_type_conversion_array_int4(x int4[]) RETURNS int4[] AS $$
-plpy.info(x, type(x))
-return x
-$$ LANGUAGE plpython3u;
-SELECT * FROM test_type_conversion_array_int4(ARRAY[0, 100]);
-INFO:  ([0, 100], <class 'list'>)
- test_type_conversion_array_int4 
----------------------------------
- {0,100}
-(1 row)
-
-SELECT * FROM test_type_conversion_array_int4(ARRAY[0,-100,55]);
-INFO:  ([0, -100, 55], <class 'list'>)
- test_type_conversion_array_int4 
----------------------------------
- {0,-100,55}
-(1 row)
-
-SELECT * FROM test_type_conversion_array_int4(ARRAY[NULL,1]);
-INFO:  ([None, 1], <class 'list'>)
- test_type_conversion_array_int4 
----------------------------------
- {NULL,1}
-(1 row)
-
-SELECT * FROM test_type_conversion_array_int4(ARRAY[]::integer[]);
-INFO:  ([], <class 'list'>)
- test_type_conversion_array_int4 
----------------------------------
- {}
-(1 row)
-
-SELECT * FROM test_type_conversion_array_int4(NULL);
-INFO:  (None, <class 'NoneType'>)
- test_type_conversion_array_int4 
----------------------------------
- 
-(1 row)
-
-SELECT * FROM test_type_conversion_array_int4(ARRAY[[1,2,3],[4,5,6]]);
-INFO:  ([[1, 2, 3], [4, 5, 6]], <class 'list'>)
- test_type_conversion_array_int4 
----------------------------------
- {{1,2,3},{4,5,6}}
-(1 row)
-
-SELECT * FROM test_type_conversion_array_int4(ARRAY[[[1,2,NULL],[NULL,5,6]],[[NULL,8,9],[10,11,12]]]);
-INFO:  ([[[1, 2, None], [None, 5, 6]], [[None, 8, 9], [10, 11, 12]]], <class 'list'>)
-          test_type_conversion_array_int4          
----------------------------------------------------
- {{{1,2,NULL},{NULL,5,6}},{{NULL,8,9},{10,11,12}}}
-(1 row)
-
-SELECT * FROM test_type_conversion_array_int4('[2:4]={1,2,3}');
-INFO:  ([1, 2, 3], <class 'list'>)
- test_type_conversion_array_int4 
----------------------------------
- {1,2,3}
-(1 row)
-
-CREATE FUNCTION test_type_conversion_array_int8(x int8[]) RETURNS int8[] AS $$
-plpy.info(x, type(x))
-return x
-$$ LANGUAGE plpython3u;
-SELECT * FROM test_type_conversion_array_int8(ARRAY[[[1,2,NULL],[NULL,5,6]],[[NULL,8,9],[10,11,12]]]::int8[]);
-INFO:  ([[[1, 2, None], [None, 5, 6]], [[None, 8, 9], [10, 11, 12]]], <class 'list'>)
-          test_type_conversion_array_int8          
----------------------------------------------------
- {{{1,2,NULL},{NULL,5,6}},{{NULL,8,9},{10,11,12}}}
-(1 row)
-
-CREATE FUNCTION test_type_conversion_array_date(x date[]) RETURNS date[] AS $$
-plpy.info(x, type(x))
-return x
-$$ LANGUAGE plpython3u;
-SELECT * FROM test_type_conversion_array_date(ARRAY[[['2016-09-21','2016-09-22',NULL],[NULL,'2016-10-21','2016-10-22']],
-            [[NULL,'2016-11-21','2016-10-21'],['2015-09-21','2015-09-22','2014-09-21']]]::date[]);
-INFO:  ([[['09-21-2016', '09-22-2016', None], [None, '10-21-2016', '10-22-2016']], [[None, '11-21-2016', '10-21-2016'], ['09-21-2015', '09-22-2015', '09-21-2014']]], <class 'list'>)
-                                                 test_type_conversion_array_date                                                 
----------------------------------------------------------------------------------------------------------------------------------
- {{{09-21-2016,09-22-2016,NULL},{NULL,10-21-2016,10-22-2016}},{{NULL,11-21-2016,10-21-2016},{09-21-2015,09-22-2015,09-21-2014}}}
-(1 row)
-
-CREATE FUNCTION test_type_conversion_array_timestamp(x timestamp[]) RETURNS timestamp[] AS $$
-plpy.info(x, type(x))
-return x
-$$ LANGUAGE plpython3u;
-SELECT * FROM test_type_conversion_array_timestamp(ARRAY[[['2016-09-21 15:34:24.078792-04','2016-10-22 11:34:24.078795-04',NULL],
-            [NULL,'2016-10-21 11:34:25.078792-04','2016-10-21 11:34:24.098792-04']],
-            [[NULL,'2016-01-21 11:34:24.078792-04','2016-11-21 11:34:24.108792-04'],
-            ['2015-09-21 11:34:24.079792-04','2014-09-21 11:34:24.078792-04','2013-09-21 11:34:24.078792-04']]]::timestamp[]);
-INFO:  ([[['Wed Sep 21 15:34:24.078792 2016', 'Sat Oct 22 11:34:24.078795 2016', None], [None, 'Fri Oct 21 11:34:25.078792 2016', 'Fri Oct 21 11:34:24.098792 2016']], [[None, 'Thu Jan 21 11:34:24.078792 2016', 'Mon Nov 21 11:34:24.108792 2016'], ['Mon Sep 21 11:34:24.079792 2015', 'Sun Sep 21 11:34:24.078792 2014', 'Sat Sep 21 11:34:24.078792 2013']]], <class 'list'>)
-                                                                                                                                                      test_type_conversion_array_timestamp                                                                                                                                                      
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
- {{{"Wed Sep 21 15:34:24.078792 2016","Sat Oct 22 11:34:24.078795 2016",NULL},{NULL,"Fri Oct 21 11:34:25.078792 2016","Fri Oct 21 11:34:24.098792 2016"}},{{NULL,"Thu Jan 21 11:34:24.078792 2016","Mon Nov 21 11:34:24.108792 2016"},{"Mon Sep 21 11:34:24.079792 2015","Sun Sep 21 11:34:24.078792 2014","Sat Sep 21 11:34:24.078792 2013"}}}
-(1 row)
-
-CREATE OR REPLACE FUNCTION pyreturnmultidemint4(h int4, i int4, j int4, k int4 ) RETURNS int4[] AS $BODY$
-m = [[[[x for x in range(h)] for y in range(i)] for z in range(j)] for w in range(k)]
-plpy.info(m, type(m))
-return m
-$BODY$ LANGUAGE plpython3u;
-select pyreturnmultidemint4(8,5,3,2);
-INFO:  ([[[[0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7]], [[0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7]], [[0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7]]], [[[0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7]], [[0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7]], [[0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7], [0, 1, 2, 3, 4, 5, 6, 7]]]], <class 'list'>)
-                                                                                                                                                                                                                                                                             pyreturnmultidemint4                                                                                                                                                                                                                                                                              
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
- {{{{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7}},{{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7}},{{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7}}},{{{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7}},{{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7}},{{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7},{0,1,2,3,4,5,6,7}}}}
-(1 row)
-
-CREATE OR REPLACE FUNCTION pyreturnmultidemint8(h int4, i int4, j int4, k int4 ) RETURNS int8[] AS $BODY$
-m = [[[[x for x in range(h)] for y in range(i)] for z in range(j)] for w in range(k)]
-plpy.info(m, type(m))
-return m
-$BODY$ LANGUAGE plpython3u;
-select pyreturnmultidemint8(5,5,3,2);
-INFO:  ([[[[0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4]], [[0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4]], [[0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4]]], [[[0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4]], [[0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4]], [[0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4], [0, 1, 2, 3, 4]]]], <class 'list'>)
-                                                                                                                                                                                   pyreturnmultidemint8                                                                                                                                                                                    
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
- {{{{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4}},{{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4}},{{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4}}},{{{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4}},{{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4}},{{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4},{0,1,2,3,4}}}}
-(1 row)
-
-CREATE OR REPLACE FUNCTION pyreturnmultidemfloat4(h int4, i int4, j int4, k int4 ) RETURNS float4[] AS $BODY$
-m = [[[[x for x in range(h)] for y in range(i)] for z in range(j)] for w in range(k)]
-plpy.info(m, type(m))
-return m
-$BODY$ LANGUAGE plpython3u;
-select pyreturnmultidemfloat4(6,5,3,2);
-INFO:  ([[[[0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5]], [[0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5]], [[0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5]]], [[[0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5]], [[0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5]], [[0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5], [0, 1, 2, 3, 4, 5]]]], <class 'list'>)
-                                                                                                                                                                                                                pyreturnmultidemfloat4                                                                                                                                                                                                                 
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
- {{{{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5}},{{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5}},{{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5}}},{{{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5}},{{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5}},{{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5},{0,1,2,3,4,5}}}}
-(1 row)
-
-CREATE OR REPLACE FUNCTION pyreturnmultidemfloat8(h int4, i int4, j int4, k int4 ) RETURNS float8[] AS $BODY$
-m = [[[[x for x in range(h)] for y in range(i)] for z in range(j)] for w in range(k)]
-plpy.info(m, type(m))
-return m
-$BODY$ LANGUAGE plpython3u;
-select pyreturnmultidemfloat8(7,5,3,2);
-INFO:  ([[[[0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6]], [[0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6]], [[0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6]]], [[[0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6]], [[0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6]], [[0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6], [0, 1, 2, 3, 4, 5, 6]]]], <class 'list'>)
-                                                                                                                                                                                                                                              pyreturnmultidemfloat8                                                                                                                                                                                                                                               
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
- {{{{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6}},{{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6}},{{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6}}},{{{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6}},{{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6}},{{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6},{0,1,2,3,4,5,6}}}}
-(1 row)
-
-CREATE FUNCTION test_type_conversion_array_text(x text[]) RETURNS text[] AS $$
-plpy.info(x, type(x))
-return x
-$$ LANGUAGE plpython3u;
-SELECT * FROM test_type_conversion_array_text(ARRAY['foo', 'bar']);
-INFO:  (['foo', 'bar'], <class 'list'>)
- test_type_conversion_array_text 
----------------------------------
- {foo,bar}
-(1 row)
-
-SELECT * FROM test_type_conversion_array_text(ARRAY[['foo', 'bar'],['foo2', 'bar2']]);
-INFO:  ([['foo', 'bar'], ['foo2', 'bar2']], <class 'list'>)
- test_type_conversion_array_text 
----------------------------------
- {{foo,bar},{foo2,bar2}}
-(1 row)
-
-CREATE FUNCTION test_type_conversion_array_bytea(x bytea[]) RETURNS bytea[] AS $$
-plpy.info(x, type(x))
-return x
-$$ LANGUAGE plpython3u;
-SELECT * FROM test_type_conversion_array_bytea(ARRAY[E'\\xdeadbeef'::bytea, NULL]);
-INFO:  ([b'\xde\xad\xbe\xef', None], <class 'list'>)
- test_type_conversion_array_bytea 
-----------------------------------
- {"\\xdeadbeef",NULL}
-(1 row)
-
-CREATE FUNCTION test_type_conversion_array_mixed1() RETURNS text[] AS $$
-return [123, 'abc']
-$$ LANGUAGE plpython3u;
-SELECT * FROM test_type_conversion_array_mixed1();
- test_type_conversion_array_mixed1 
------------------------------------
- {123,abc}
-(1 row)
-
-CREATE FUNCTION test_type_conversion_array_mixed2() RETURNS int[] AS $$
-return [123, 'abc']
-$$ LANGUAGE plpython3u;
-SELECT * FROM test_type_conversion_array_mixed2();
-ERROR:  invalid input syntax for type integer: "abc"
-CONTEXT:  while creating return value
-PL/Python function "test_type_conversion_array_mixed2"
-CREATE FUNCTION test_type_conversion_mdarray_malformed() RETURNS int[] AS $$
-return [[1,2,3],[4,5]]
-$$ LANGUAGE plpython3u;
-SELECT * FROM test_type_conversion_mdarray_malformed();
-ERROR:  wrong length of inner sequence: has length 2, but 3 was expected
-DETAIL:  To construct a multidimensional array, the inner sequences must all have the same length.
-CONTEXT:  while creating return value
-PL/Python function "test_type_conversion_mdarray_malformed"
-CREATE FUNCTION test_type_conversion_mdarray_toodeep() RETURNS int[] AS $$
-return [[[[[[[1]]]]]]]
-$$ LANGUAGE plpython3u;
-SELECT * FROM test_type_conversion_mdarray_toodeep();
-ERROR:  number of array dimensions exceeds the maximum allowed (6)
-CONTEXT:  while creating return value
-PL/Python function "test_type_conversion_mdarray_toodeep"
-CREATE FUNCTION test_type_conversion_array_record() RETURNS type_record[] AS $$
-return [{'first': 'one', 'second': 42}, {'first': 'two', 'second': 11}]
-$$ LANGUAGE plpython3u;
-SELECT * FROM test_type_conversion_array_record();
- test_type_conversion_array_record 
------------------------------------
- {"(one,42)","(two,11)"}
-(1 row)
-
-CREATE FUNCTION test_type_conversion_array_string() RETURNS text[] AS $$
-return 'abc'
-$$ LANGUAGE plpython3u;
-SELECT * FROM test_type_conversion_array_string();
- test_type_conversion_array_string 
------------------------------------
- {a,b,c}
-(1 row)
-
-CREATE FUNCTION test_type_conversion_array_tuple() RETURNS text[] AS $$
-return ('abc', 'def')
-$$ LANGUAGE plpython3u;
-SELECT * FROM test_type_conversion_array_tuple();
- test_type_conversion_array_tuple 
-----------------------------------
- {abc,def}
-(1 row)
-
-CREATE FUNCTION test_type_conversion_array_error() RETURNS int[] AS $$
-return 5
-$$ LANGUAGE plpython3u;
-SELECT * FROM test_type_conversion_array_error();
-ERROR:  return value of function with array return type is not a Python sequence
-CONTEXT:  while creating return value
-PL/Python function "test_type_conversion_array_error"
---
--- Domains over arrays
---
-CREATE DOMAIN ordered_pair_domain AS integer[] CHECK (array_length(VALUE,1)=2 AND VALUE[1] < VALUE[2]);
-CREATE FUNCTION test_type_conversion_array_domain(x ordered_pair_domain) RETURNS ordered_pair_domain AS $$
-plpy.info(x, type(x))
-return x
-$$ LANGUAGE plpython3u;
-SELECT * FROM test_type_conversion_array_domain(ARRAY[0, 100]::ordered_pair_domain);
-INFO:  ([0, 100], <class 'list'>)
- test_type_conversion_array_domain 
------------------------------------
- {0,100}
-(1 row)
-
-SELECT * FROM test_type_conversion_array_domain(NULL::ordered_pair_domain);
-INFO:  (None, <class 'NoneType'>)
- test_type_conversion_array_domain 
------------------------------------
- 
-(1 row)
-
-CREATE FUNCTION test_type_conversion_array_domain_check_violation() RETURNS ordered_pair_domain AS $$
-return [2,1]
-$$ LANGUAGE plpython3u;
-SELECT * FROM test_type_conversion_array_domain_check_violation();
-ERROR:  value for domain ordered_pair_domain violates check constraint "ordered_pair_domain_check"
-CONTEXT:  while creating return value
-PL/Python function "test_type_conversion_array_domain_check_violation"
---
--- Arrays of domains
---
-CREATE FUNCTION test_read_uint2_array(x uint2[]) RETURNS uint2 AS $$
-plpy.info(x, type(x))
-return x[0]
-$$ LANGUAGE plpythonu;
-select test_read_uint2_array(array[1::uint2]);
-INFO:  ([1], <class 'list'>)
- test_read_uint2_array 
------------------------
-                     1
-(1 row)
-
-CREATE FUNCTION test_build_uint2_array(x int2) RETURNS uint2[] AS $$
-return [x, x]
-$$ LANGUAGE plpythonu;
-select test_build_uint2_array(1::int2);
- test_build_uint2_array 
-------------------------
- {1,1}
-(1 row)
-
-select test_build_uint2_array(-1::int2);  -- fail
-ERROR:  value for domain uint2 violates check constraint "uint2_check"
-CONTEXT:  while creating return value
-PL/Python function "test_build_uint2_array"
---
--- ideally this would work, but for now it doesn't, because the return value
--- is [[2,4], [2,4]] which our conversion code thinks should become a 2-D
--- integer array, not an array of arrays.
---
-CREATE FUNCTION test_type_conversion_domain_array(x integer[])
-  RETURNS ordered_pair_domain[] AS $$
-return [x, x]
-$$ LANGUAGE plpythonu;
-select test_type_conversion_domain_array(array[2,4]);
-ERROR:  return value of function with array return type is not a Python sequence
-CONTEXT:  while creating return value
-PL/Python function "test_type_conversion_domain_array"
-select test_type_conversion_domain_array(array[4,2]);  -- fail
-ERROR:  return value of function with array return type is not a Python sequence
-CONTEXT:  while creating return value
-PL/Python function "test_type_conversion_domain_array"
-CREATE FUNCTION test_type_conversion_domain_array2(x ordered_pair_domain)
-  RETURNS integer AS $$
-plpy.info(x, type(x))
-return x[1]
-$$ LANGUAGE plpythonu;
-select test_type_conversion_domain_array2(array[2,4]);
-INFO:  ([2, 4], <class 'list'>)
- test_type_conversion_domain_array2 
-------------------------------------
-                                  4
-(1 row)
-
-select test_type_conversion_domain_array2(array[4,2]);  -- fail
-ERROR:  value for domain ordered_pair_domain violates check constraint "ordered_pair_domain_check"
-CREATE FUNCTION test_type_conversion_array_domain_array(x ordered_pair_domain[])
-  RETURNS ordered_pair_domain AS $$
-plpy.info(x, type(x))
-return x[0]
-$$ LANGUAGE plpythonu;
-select test_type_conversion_array_domain_array(array[array[2,4]::ordered_pair_domain]);
-INFO:  ([[2, 4]], <class 'list'>)
- test_type_conversion_array_domain_array 
------------------------------------------
- {2,4}
-(1 row)
-
----
---- Composite types
----
-CREATE TABLE employee (
-    name text,
-    basesalary integer,
-    bonus integer
-);
-INSERT INTO employee VALUES ('John', 100, 10), ('Mary', 200, 10);
-CREATE OR REPLACE FUNCTION test_composite_table_input(e employee) RETURNS integer AS $$
-return e['basesalary'] + e['bonus']
-$$ LANGUAGE plpython3u;
-SELECT name, test_composite_table_input(employee.*) FROM employee;
- name | test_composite_table_input 
-------+----------------------------
- John |                        110
- Mary |                        210
-(2 rows)
-
-ALTER TABLE employee DROP bonus;
-SELECT name, test_composite_table_input(employee.*) FROM employee;
-ERROR:  KeyError: 'bonus'
-CONTEXT:  Traceback (most recent call last):
-  PL/Python function "test_composite_table_input", line 2, in <module>
-    return e['basesalary'] + e['bonus']
-PL/Python function "test_composite_table_input"
-ALTER TABLE employee ADD bonus integer;
-UPDATE employee SET bonus = 10;
-SELECT name, test_composite_table_input(employee.*) FROM employee;
- name | test_composite_table_input 
-------+----------------------------
- John |                        110
- Mary |                        210
-(2 rows)
-
-CREATE TYPE named_pair AS (
-    i integer,
-    j integer
-);
-CREATE OR REPLACE FUNCTION test_composite_type_input(p named_pair) RETURNS integer AS $$
-return sum(p.values())
-$$ LANGUAGE plpython3u;
-SELECT test_composite_type_input(row(1, 2));
- test_composite_type_input 
----------------------------
-                         3
-(1 row)
-
-ALTER TYPE named_pair RENAME TO named_pair_2;
-SELECT test_composite_type_input(row(1, 2));
- test_composite_type_input 
----------------------------
-                         3
-(1 row)
-
---
--- Domains within composite
---
-CREATE TYPE nnint_container AS (f1 int, f2 nnint);
-CREATE FUNCTION nnint_test(x int, y int) RETURNS nnint_container AS $$
-return {'f1': x, 'f2': y}
-$$ LANGUAGE plpythonu;
-SELECT nnint_test(null, 3);
- nnint_test 
-------------
- (,3)
-(1 row)
-
-SELECT nnint_test(3, null);  -- fail
-ERROR:  value for domain nnint violates check constraint "nnint_check"
-CONTEXT:  while creating return value
-PL/Python function "nnint_test"
---
--- Domains of composite
---
-CREATE DOMAIN ordered_named_pair AS named_pair_2 CHECK((VALUE).i <= (VALUE).j);
-CREATE FUNCTION read_ordered_named_pair(p ordered_named_pair) RETURNS integer AS $$
-return p['i'] + p['j']
-$$ LANGUAGE plpythonu;
-SELECT read_ordered_named_pair(row(1, 2));
- read_ordered_named_pair 
--------------------------
-                       3
-(1 row)
-
-SELECT read_ordered_named_pair(row(2, 1));  -- fail
-ERROR:  value for domain ordered_named_pair violates check constraint "ordered_named_pair_check"
-CREATE FUNCTION build_ordered_named_pair(i int, j int) RETURNS ordered_named_pair AS $$
-return {'i': i, 'j': j}
-$$ LANGUAGE plpythonu;
-SELECT build_ordered_named_pair(1,2);
- build_ordered_named_pair 
---------------------------
- (1,2)
-(1 row)
-
-SELECT build_ordered_named_pair(2,1);  -- fail
-ERROR:  value for domain ordered_named_pair violates check constraint "ordered_named_pair_check"
-CONTEXT:  while creating return value
-PL/Python function "build_ordered_named_pair"
-CREATE FUNCTION build_ordered_named_pairs(i int, j int) RETURNS ordered_named_pair[] AS $$
-return [{'i': i, 'j': j}, {'i': i, 'j': j+1}]
-$$ LANGUAGE plpythonu;
-SELECT build_ordered_named_pairs(1,2);
- build_ordered_named_pairs 
----------------------------
- {"(1,2)","(1,3)"}
-(1 row)
-
-SELECT build_ordered_named_pairs(2,1);  -- fail
-ERROR:  value for domain ordered_named_pair violates check constraint "ordered_named_pair_check"
-CONTEXT:  while creating return value
-PL/Python function "build_ordered_named_pairs"
---
--- Prepared statements
---
-CREATE OR REPLACE FUNCTION test_prep_bool_input() RETURNS int
-LANGUAGE plpython3u
-AS $$
-plan = plpy.prepare("SELECT CASE WHEN $1 THEN 1 ELSE 0 END AS val", ['boolean'])
-rv = plpy.execute(plan, ['fa'], 5) # 'fa' is true in Python
-return rv[0]['val']
-$$;
-SELECT test_prep_bool_input(); -- 1
- test_prep_bool_input 
-----------------------
-                    1
-(1 row)
-
-CREATE OR REPLACE FUNCTION test_prep_bool_output() RETURNS bool
-LANGUAGE plpython3u
-AS $$
-plan = plpy.prepare("SELECT $1 = 1 AS val", ['int'])
-rv = plpy.execute(plan, [0], 5)
-plpy.info(rv[0])
-return rv[0]['val']
-$$;
-SELECT test_prep_bool_output(); -- false
-INFO:  {'val': False}
- test_prep_bool_output 
------------------------
- f
-(1 row)
-
-CREATE OR REPLACE FUNCTION test_prep_bytea_input(bb bytea) RETURNS int
-LANGUAGE plpython3u
-AS $$
-plan = plpy.prepare("SELECT octet_length($1) AS val", ['bytea'])
-rv = plpy.execute(plan, [bb], 5)
-return rv[0]['val']
-$$;
-SELECT test_prep_bytea_input(E'a\\000b'); -- 3 (embedded null formerly truncated value)
- test_prep_bytea_input 
------------------------
-                     3
-(1 row)
-
-CREATE OR REPLACE FUNCTION test_prep_bytea_output() RETURNS bytea
-LANGUAGE plpython3u
-AS $$
-plan = plpy.prepare("SELECT decode('aa00bb', 'hex') AS val")
-rv = plpy.execute(plan, [], 5)
-plpy.info(rv[0])
-return rv[0]['val']
-$$;
-SELECT test_prep_bytea_output();
-INFO:  {'val': b'\xaa\x00\xbb'}
- test_prep_bytea_output 
-------------------------
- \xaa00bb
-(1 row)
-
diff --git a/src/pl/plpython/expected/plpython_unicode.out b/src/pl/plpython/expected/plpython_unicode.out
index c7546dd4587..fd54b0b88e8 100644
--- a/src/pl/plpython/expected/plpython_unicode.out
+++ b/src/pl/plpython/expected/plpython_unicode.out
@@ -11,24 +11,24 @@ CREATE TABLE unicode_test (
 	testvalue  text NOT NULL
 );
 CREATE FUNCTION unicode_return() RETURNS text AS E'
-return u"\\xA0"
-' LANGUAGE plpythonu;
+return "\\xA0"
+' LANGUAGE plpython3u;
 CREATE FUNCTION unicode_trigger() RETURNS trigger AS E'
-TD["new"]["testvalue"] = u"\\xA0"
+TD["new"]["testvalue"] = "\\xA0"
 return "MODIFY"
-' LANGUAGE plpythonu;
+' LANGUAGE plpython3u;
 CREATE TRIGGER unicode_test_bi BEFORE INSERT ON unicode_test
   FOR EACH ROW EXECUTE PROCEDURE unicode_trigger();
 CREATE FUNCTION unicode_plan1() RETURNS text AS E'
 plan = plpy.prepare("SELECT $1 AS testvalue", ["text"])
-rv = plpy.execute(plan, [u"\\xA0"], 1)
+rv = plpy.execute(plan, ["\\xA0"], 1)
 return rv[0]["testvalue"]
-' LANGUAGE plpythonu;
+' LANGUAGE plpython3u;
 CREATE FUNCTION unicode_plan2() RETURNS text AS E'
-plan = plpy.prepare("SELECT $1 || $2 AS testvalue", ["text", u"text"])
+plan = plpy.prepare("SELECT $1 || $2 AS testvalue", ["text", "text"])
 rv = plpy.execute(plan, ["foo", "bar"], 1)
 return rv[0]["testvalue"]
-' LANGUAGE plpythonu;
+' LANGUAGE plpython3u;
 SELECT unicode_return();
  unicode_return 
 ----------------
diff --git a/src/pl/plpython/expected/plpython_void.out b/src/pl/plpython/expected/plpython_void.out
index 1080d12d6b2..07d0760783e 100644
--- a/src/pl/plpython/expected/plpython_void.out
+++ b/src/pl/plpython/expected/plpython_void.out
@@ -3,14 +3,14 @@
 --
 CREATE FUNCTION test_void_func1() RETURNS void AS $$
 x = 10
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 -- illegal: can't return non-None value in void-returning func
 CREATE FUNCTION test_void_func2() RETURNS void AS $$
 return 10
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 CREATE FUNCTION test_return_none() RETURNS int AS $$
 None
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 -- Tests for functions returning void
 SELECT test_void_func1(), test_void_func1() IS NULL AS "is null";
  test_void_func1 | is null 
diff --git a/src/pl/plpython/plpy_cursorobject.c b/src/pl/plpython/plpy_cursorobject.c
index 08d8b607e38..f8591358bc8 100644
--- a/src/pl/plpython/plpy_cursorobject.c
+++ b/src/pl/plpython/plpy_cursorobject.c
@@ -40,7 +40,7 @@ static PyTypeObject PLy_CursorType = {
 	.tp_name = "PLyCursor",
 	.tp_basicsize = sizeof(PLyCursorObject),
 	.tp_dealloc = PLy_cursor_dealloc,
-	.tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE | Py_TPFLAGS_HAVE_ITER,
+	.tp_flags = Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE,
 	.tp_doc = PLy_cursor_doc,
 	.tp_iter = PyObject_SelfIter,
 	.tp_iternext = PLy_cursor_iternext,
diff --git a/src/pl/plpython/plpy_main.c b/src/pl/plpython/plpy_main.c
index 3eedaa80da7..21303c1586b 100644
--- a/src/pl/plpython/plpy_main.c
+++ b/src/pl/plpython/plpy_main.c
@@ -28,27 +28,13 @@
  * exported functions
  */
 
-#if PY_MAJOR_VERSION >= 3
-/* Use separate names to reduce confusion */
-#define plpython_validator plpython3_validator
-#define plpython_call_handler plpython3_call_handler
-#define plpython_inline_handler plpython3_inline_handler
-#endif
-
 extern void _PG_init(void);
 
 PG_MODULE_MAGIC;
 
-PG_FUNCTION_INFO_V1(plpython_validator);
-PG_FUNCTION_INFO_V1(plpython_call_handler);
-PG_FUNCTION_INFO_V1(plpython_inline_handler);
-
-#if PY_MAJOR_VERSION < 3
-/* Define aliases plpython2_call_handler etc */
-PG_FUNCTION_INFO_V1(plpython2_validator);
-PG_FUNCTION_INFO_V1(plpython2_call_handler);
-PG_FUNCTION_INFO_V1(plpython2_inline_handler);
-#endif
+PG_FUNCTION_INFO_V1(plpython3_validator);
+PG_FUNCTION_INFO_V1(plpython3_call_handler);
+PG_FUNCTION_INFO_V1(plpython3_inline_handler);
 
 
 static bool PLy_procedure_is_trigger(Form_pg_proc procStruct);
@@ -125,13 +111,9 @@ PLy_initialize(void)
 	if (inited)
 		return;
 
-#if PY_MAJOR_VERSION >= 3
 	PyImport_AppendInittab("plpy", PyInit_plpy);
-#endif
 	Py_Initialize();
-#if PY_MAJOR_VERSION >= 3
 	PyImport_ImportModule("plpy");
-#endif
 	PLy_init_interp();
 	PLy_init_plpy();
 	if (PyErr_Occurred())
@@ -171,7 +153,7 @@ PLy_init_interp(void)
 }
 
 Datum
-plpython_validator(PG_FUNCTION_ARGS)
+plpython3_validator(PG_FUNCTION_ARGS)
 {
 	Oid			funcoid = PG_GETARG_OID(0);
 	HeapTuple	tuple;
@@ -203,17 +185,8 @@ plpython_validator(PG_FUNCTION_ARGS)
 	PG_RETURN_VOID();
 }
 
-#if PY_MAJOR_VERSION < 3
 Datum
-plpython2_validator(PG_FUNCTION_ARGS)
-{
-	/* call plpython validator with our fcinfo so it gets our oid */
-	return plpython_validator(fcinfo);
-}
-#endif							/* PY_MAJOR_VERSION < 3 */
-
-Datum
-plpython_call_handler(PG_FUNCTION_ARGS)
+plpython3_call_handler(PG_FUNCTION_ARGS)
 {
 	bool		nonatomic;
 	Datum		retval;
@@ -284,16 +257,8 @@ plpython_call_handler(PG_FUNCTION_ARGS)
 	return retval;
 }
 
-#if PY_MAJOR_VERSION < 3
-Datum
-plpython2_call_handler(PG_FUNCTION_ARGS)
-{
-	return plpython_call_handler(fcinfo);
-}
-#endif							/* PY_MAJOR_VERSION < 3 */
-
 Datum
-plpython_inline_handler(PG_FUNCTION_ARGS)
+plpython3_inline_handler(PG_FUNCTION_ARGS)
 {
 	LOCAL_FCINFO(fake_fcinfo, 0);
 	InlineCodeBlock *codeblock = (InlineCodeBlock *) DatumGetPointer(PG_GETARG_DATUM(0));
@@ -368,14 +333,6 @@ plpython_inline_handler(PG_FUNCTION_ARGS)
 	PG_RETURN_VOID();
 }
 
-#if PY_MAJOR_VERSION < 3
-Datum
-plpython2_inline_handler(PG_FUNCTION_ARGS)
-{
-	return plpython_inline_handler(fcinfo);
-}
-#endif							/* PY_MAJOR_VERSION < 3 */
-
 static bool
 PLy_procedure_is_trigger(Form_pg_proc procStruct)
 {
diff --git a/src/pl/plpython/plpy_plpymodule.c b/src/pl/plpython/plpy_plpymodule.c
index 0365acc95b0..0eefd34afcd 100644
--- a/src/pl/plpython/plpy_plpymodule.c
+++ b/src/pl/plpython/plpy_plpymodule.c
@@ -109,7 +109,6 @@ static PyMethodDef PLy_exc_methods[] = {
 	{NULL, NULL, 0, NULL}
 };
 
-#if PY_MAJOR_VERSION >= 3
 static PyModuleDef PLy_module = {
 	PyModuleDef_HEAD_INIT,
 	.m_name = "plpy",
@@ -141,7 +140,6 @@ PyInit_plpy(void)
 
 	return m;
 }
-#endif							/* PY_MAJOR_VERSION >= 3 */
 
 void
 PLy_init_plpy(void)
@@ -150,10 +148,6 @@ PLy_init_plpy(void)
 			   *main_dict,
 			   *plpy_mod;
 
-#if PY_MAJOR_VERSION < 3
-	PyObject   *plpy;
-#endif
-
 	/*
 	 * initialize plpy module
 	 */
@@ -162,13 +156,7 @@ PLy_init_plpy(void)
 	PLy_subtransaction_init_type();
 	PLy_cursor_init_type();
 
-#if PY_MAJOR_VERSION >= 3
 	PyModule_Create(&PLy_module);
-	/* for Python 3 we initialized the exceptions in PyInit_plpy */
-#else
-	plpy = Py_InitModule("plpy", PLy_methods);
-	PLy_add_exceptions(plpy);
-#endif
 
 	/* PyDict_SetItemString(plpy, "PlanType", (PyObject *) &PLy_PlanType); */
 
@@ -191,11 +179,7 @@ PLy_add_exceptions(PyObject *plpy)
 	PyObject   *excmod;
 	HASHCTL		hash_ctl;
 
-#if PY_MAJOR_VERSION < 3
-	excmod = Py_InitModule("spiexceptions", PLy_exc_methods);
-#else
 	excmod = PyModule_Create(&PLy_exc_module);
-#endif
 	if (excmod == NULL)
 		PLy_elog(ERROR, "could not create the spiexceptions module");
 
diff --git a/src/pl/plpython/plpy_plpymodule.h b/src/pl/plpython/plpy_plpymodule.h
index 54d78101ceb..ad6436aca78 100644
--- a/src/pl/plpython/plpy_plpymodule.h
+++ b/src/pl/plpython/plpy_plpymodule.h
@@ -11,9 +11,7 @@
 extern HTAB *PLy_spi_exceptions;
 
 
-#if PY_MAJOR_VERSION >= 3
 PyMODINIT_FUNC PyInit_plpy(void);
-#endif
 extern void PLy_init_plpy(void);
 
 #endif							/* PLPY_PLPYMODULE_H */
diff --git a/src/pl/plpython/plpy_resultobject.c b/src/pl/plpython/plpy_resultobject.c
index 54f39419c84..f289617ba80 100644
--- a/src/pl/plpython/plpy_resultobject.c
+++ b/src/pl/plpython/plpy_resultobject.c
@@ -226,19 +226,11 @@ PLy_result_str(PyObject *arg)
 {
 	PLyResultObject *ob = (PLyResultObject *) arg;
 
-#if PY_MAJOR_VERSION >= 3
 	return PyUnicode_FromFormat("<%s status=%S nrows=%S rows=%S>",
 								Py_TYPE(ob)->tp_name,
 								ob->status,
 								ob->nrows,
 								ob->rows);
-#else
-	return PyString_FromFormat("<%s status=%ld nrows=%ld rows=%s>",
-							   ob->ob_type->tp_name,
-							   PyInt_AsLong(ob->status),
-							   PyInt_AsLong(ob->nrows),
-							   PyString_AsString(PyObject_Str(ob->rows)));
-#endif
 }
 
 static PyObject *
diff --git a/src/pl/plpython/plpy_typeio.c b/src/pl/plpython/plpy_typeio.c
index 5e807b139f1..adf37a9b882 100644
--- a/src/pl/plpython/plpy_typeio.c
+++ b/src/pl/plpython/plpy_typeio.c
@@ -1032,25 +1032,17 @@ PLyObject_AsString(PyObject *plrv)
 	else if (PyFloat_Check(plrv))
 	{
 		/* use repr() for floats, str() is lossy */
-#if PY_MAJOR_VERSION >= 3
 		PyObject   *s = PyObject_Repr(plrv);
 
 		plrv_bo = PLyUnicode_Bytes(s);
 		Py_XDECREF(s);
-#else
-		plrv_bo = PyObject_Repr(plrv);
-#endif
 	}
 	else
 	{
-#if PY_MAJOR_VERSION >= 3
 		PyObject   *s = PyObject_Str(plrv);
 
 		plrv_bo = PLyUnicode_Bytes(s);
 		Py_XDECREF(s);
-#else
-		plrv_bo = PyObject_Str(plrv);
-#endif
 	}
 	if (!plrv_bo)
 		PLy_elog(ERROR, "could not create string representation of Python object");
diff --git a/src/pl/plpython/plpy_util.c b/src/pl/plpython/plpy_util.c
index 4a7d7264d79..693d0396c48 100644
--- a/src/pl/plpython/plpy_util.c
+++ b/src/pl/plpython/plpy_util.c
@@ -95,7 +95,6 @@ PLyUnicode_AsString(PyObject *unicode)
 	return rv;
 }
 
-#if PY_MAJOR_VERSION >= 3
 /*
  * Convert a C string in the PostgreSQL server encoding to a Python
  * unicode object.  Reference ownership is passed to the caller.
@@ -126,5 +125,3 @@ PLyUnicode_FromString(const char *s)
 {
 	return PLyUnicode_FromStringAndSize(s, strlen(s));
 }
-
-#endif							/* PY_MAJOR_VERSION >= 3 */
diff --git a/src/pl/plpython/plpy_util.h b/src/pl/plpython/plpy_util.h
index c9ba7edc0ec..7c6577925ea 100644
--- a/src/pl/plpython/plpy_util.h
+++ b/src/pl/plpython/plpy_util.h
@@ -11,9 +11,7 @@
 extern PyObject *PLyUnicode_Bytes(PyObject *unicode);
 extern char *PLyUnicode_AsString(PyObject *unicode);
 
-#if PY_MAJOR_VERSION >= 3
 extern PyObject *PLyUnicode_FromString(const char *s);
 extern PyObject *PLyUnicode_FromStringAndSize(const char *s, Py_ssize_t size);
-#endif
 
 #endif							/* PLPY_UTIL_H */
diff --git a/src/pl/plpython/plpython.h b/src/pl/plpython/plpython.h
index 994457b37d6..68426b12f76 100644
--- a/src/pl/plpython/plpython.h
+++ b/src/pl/plpython/plpython.h
@@ -69,26 +69,21 @@
  * compatibility layer for Python 3 that when asked to convert a C
  * string to a Python string it converts the C string from the
  * PostgreSQL server encoding to a Python Unicode object.
+ *
+ * FIXME
  */
-#if PY_MAJOR_VERSION >= 3
 #define PyString_Check(x) 0
 #define PyString_AsString(x) PLyUnicode_AsString(x)
 #define PyString_FromString(x) PLyUnicode_FromString(x)
 #define PyString_FromStringAndSize(x, size) PLyUnicode_FromStringAndSize(x, size)
-#endif
 
 /*
  * Python 3 only has long.
+ *
+ * FIXME
  */
-#if PY_MAJOR_VERSION >= 3
 #define PyInt_FromLong(x) PyLong_FromLong(x)
 #define PyInt_AsLong(x) PyLong_AsLong(x)
-#endif
-
-/* Python 3 removed the Py_TPFLAGS_HAVE_ITER flag */
-#if PY_MAJOR_VERSION >= 3
-#define Py_TPFLAGS_HAVE_ITER 0
-#endif
 
 /* define our text domain for translations */
 #undef TEXTDOMAIN
diff --git a/src/pl/plpython/plpython2u--1.0.sql b/src/pl/plpython/plpython2u--1.0.sql
deleted file mode 100644
index 69f74775678..00000000000
--- a/src/pl/plpython/plpython2u--1.0.sql
+++ /dev/null
@@ -1,17 +0,0 @@
-/* src/pl/plpython/plpython2u--1.0.sql */
-
-CREATE FUNCTION plpython2_call_handler() RETURNS language_handler
-  LANGUAGE c AS 'MODULE_PATHNAME';
-
-CREATE FUNCTION plpython2_inline_handler(internal) RETURNS void
-  STRICT LANGUAGE c AS 'MODULE_PATHNAME';
-
-CREATE FUNCTION plpython2_validator(oid) RETURNS void
-  STRICT LANGUAGE c AS 'MODULE_PATHNAME';
-
-CREATE LANGUAGE plpython2u
-  HANDLER plpython2_call_handler
-  INLINE plpython2_inline_handler
-  VALIDATOR plpython2_validator;
-
-COMMENT ON LANGUAGE plpython2u IS 'PL/Python2U untrusted procedural language';
diff --git a/src/pl/plpython/plpython2u.control b/src/pl/plpython/plpython2u.control
deleted file mode 100644
index 39c2b791efe..00000000000
--- a/src/pl/plpython/plpython2u.control
+++ /dev/null
@@ -1,7 +0,0 @@
-# plpython2u extension
-comment = 'PL/Python2U untrusted procedural language'
-default_version = '1.0'
-module_pathname = '$libdir/plpython2'
-relocatable = false
-schema = pg_catalog
-superuser = true
diff --git a/src/pl/plpython/plpythonu--1.0.sql b/src/pl/plpython/plpythonu--1.0.sql
deleted file mode 100644
index 4c6f7c3f140..00000000000
--- a/src/pl/plpython/plpythonu--1.0.sql
+++ /dev/null
@@ -1,17 +0,0 @@
-/* src/pl/plpython/plpythonu--1.0.sql */
-
-CREATE FUNCTION plpython_call_handler() RETURNS language_handler
-  LANGUAGE c AS 'MODULE_PATHNAME';
-
-CREATE FUNCTION plpython_inline_handler(internal) RETURNS void
-  STRICT LANGUAGE c AS 'MODULE_PATHNAME';
-
-CREATE FUNCTION plpython_validator(oid) RETURNS void
-  STRICT LANGUAGE c AS 'MODULE_PATHNAME';
-
-CREATE LANGUAGE plpythonu
-  HANDLER plpython_call_handler
-  INLINE plpython_inline_handler
-  VALIDATOR plpython_validator;
-
-COMMENT ON LANGUAGE plpythonu IS 'PL/PythonU untrusted procedural language';
diff --git a/src/pl/plpython/plpythonu.control b/src/pl/plpython/plpythonu.control
deleted file mode 100644
index ae91b1c255c..00000000000
--- a/src/pl/plpython/plpythonu.control
+++ /dev/null
@@ -1,7 +0,0 @@
-# plpythonu extension
-comment = 'PL/PythonU untrusted procedural language'
-default_version = '1.0'
-module_pathname = '$libdir/plpython2'
-relocatable = false
-schema = pg_catalog
-superuser = true
diff --git a/src/pl/plpython/regress-python3-mangle.mk b/src/pl/plpython/regress-python3-mangle.mk
deleted file mode 100644
index a785818a172..00000000000
--- a/src/pl/plpython/regress-python3-mangle.mk
+++ /dev/null
@@ -1,38 +0,0 @@
-ifeq ($(python_majorversion),3)
-# Adjust regression tests for Python 3 compatibility
-#
-# Mention those regression test files that need to be mangled in the
-# variable REGRESS_PLPYTHON3_MANGLE.  They will be copied to a
-# subdirectory python3/ and have their Python syntax and other bits
-# adjusted to work with Python 3.
-
-# Note that the order of the tests needs to be preserved in this
-# expression.
-REGRESS := $(foreach test,$(REGRESS),$(if $(filter $(test),$(REGRESS_PLPYTHON3_MANGLE)),python3/$(test),$(test)))
-
-.PHONY: pgregress-python3-mangle
-pgregress-python3-mangle:
-	$(MKDIR_P) sql/python3 expected/python3 results/python3
-	for file in $(patsubst %,$(srcdir)/sql/%.sql,$(REGRESS_PLPYTHON3_MANGLE)) $(patsubst %,$(srcdir)/expected/%*.out,$(REGRESS_PLPYTHON3_MANGLE)); do \
-	  sed \
-	      -e "s/<type 'exceptions\.\([[:alpha:]]*\)'>/<class '\1'>/g" \
-	      -e "s/<type 'long'>/<class 'int'>/g" \
-	      -e "s/\([0-9][0-9]*\)L/\1/g" \
-	      -e 's/\([ [{]\)u"/\1"/g' \
-	      -e "s/\([ [{]\)u'/\1'/g" \
-	      -e "s/def next/def __next__/g" \
-	      -e "s/LANGUAGE plpythonu/LANGUAGE plpython3u/g" \
-	      -e "s/LANGUAGE plpython2u/LANGUAGE plpython3u/g" \
-	      -e "s/EXTENSION plpythonu/EXTENSION plpython3u/g" \
-	      -e "s/EXTENSION plpython2u/EXTENSION plpython3u/g" \
-	      -e "s/EXTENSION \([^ ]*\)_plpythonu/EXTENSION \1_plpython3u/g" \
-	      -e "s/EXTENSION \([^ ]*\)_plpython2u/EXTENSION \1_plpython3u/g" \
-	      -e 's/installing required extension "plpython2u"/installing required extension "plpython3u"/g' \
-	    $$file >`echo $$file | sed 's,^.*/\([^/][^/]*/\)\([^/][^/]*\)$$,\1python3/\2,'` || exit; \
-	done
-
-check installcheck: pgregress-python3-mangle
-
-pg_regress_clean_files += sql/python3/ expected/python3/ results/python3/
-
-endif # Python 3
diff --git a/src/pl/plpython/sql/plpython_call.sql b/src/pl/plpython/sql/plpython_call.sql
index b0b3705ae3c..daa4bc377d7 100644
--- a/src/pl/plpython/sql/plpython_call.sql
+++ b/src/pl/plpython/sql/plpython_call.sql
@@ -3,7 +3,7 @@
 --
 
 CREATE PROCEDURE test_proc1()
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 AS $$
 pass
 $$;
@@ -13,7 +13,7 @@ CALL test_proc1();
 
 -- error: can't return non-None
 CREATE PROCEDURE test_proc2()
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 AS $$
 return 5
 $$;
@@ -24,7 +24,7 @@ CALL test_proc2();
 CREATE TABLE test1 (a int);
 
 CREATE PROCEDURE test_proc3(x int)
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 AS $$
 plpy.execute("INSERT INTO test1 VALUES (%s)" % x)
 $$;
@@ -37,7 +37,7 @@ SELECT * FROM test1;
 -- output arguments
 
 CREATE PROCEDURE test_proc5(INOUT a text)
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 AS $$
 return [a + '+' + a]
 $$;
@@ -46,7 +46,7 @@ CALL test_proc5('abc');
 
 
 CREATE PROCEDURE test_proc6(a int, INOUT b int, INOUT c int)
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 AS $$
 return (b * a, c * a)
 $$;
@@ -57,7 +57,7 @@ CALL test_proc6(2, 3, 4);
 -- OUT parameters
 
 CREATE PROCEDURE test_proc9(IN a int, OUT b int)
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 AS $$
 plpy.notice("a: %s" % (a))
 return (a * 2,)
diff --git a/src/pl/plpython/sql/plpython_composite.sql b/src/pl/plpython/sql/plpython_composite.sql
index 0fd2f5d5e3b..21757701cc1 100644
--- a/src/pl/plpython/sql/plpython_composite.sql
+++ b/src/pl/plpython/sql/plpython_composite.sql
@@ -1,6 +1,6 @@
 CREATE FUNCTION multiout_simple(OUT i integer, OUT j integer) AS $$
 return (1, 2)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT multiout_simple();
 SELECT * FROM multiout_simple();
@@ -9,7 +9,7 @@ SELECT (multiout_simple()).j + 3;
 
 CREATE FUNCTION multiout_simple_setof(n integer = 1, OUT integer, OUT integer) RETURNS SETOF record AS $$
 return [(1, 2)] * n
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT multiout_simple_setof();
 SELECT * FROM multiout_simple_setof();
@@ -34,7 +34,7 @@ elif typ == 'obj':
     return type_record
 elif typ == 'str':
     return "('%s',%r)" % (first, second)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM multiout_record_as('dict', 'foo', 1, 'f');
 SELECT multiout_record_as('dict', 'foo', 1, 'f');
@@ -77,7 +77,7 @@ for i in range(n):
     power = 2 ** i
     length = plpy.execute("select length('%d')" % power)[0]['length']
     yield power, length
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM multiout_setof(3);
 SELECT multiout_setof(5);
@@ -86,7 +86,7 @@ CREATE FUNCTION multiout_return_table() RETURNS TABLE (x integer, y text) AS $$
 return [{'x': 4, 'y' :'four'},
         {'x': 7, 'y' :'seven'},
         {'x': 0, 'y' :'zero'}]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM multiout_return_table();
 
@@ -94,18 +94,18 @@ CREATE FUNCTION multiout_array(OUT integer[], OUT text) RETURNS SETOF record AS
 yield [[1], 'a']
 yield [[1,2], 'b']
 yield [[1,2,3], None]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM multiout_array();
 
 CREATE FUNCTION singleout_composite(OUT type_record) AS $$
 return {'first': 1, 'second': 2}
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE FUNCTION multiout_composite(OUT type_record) RETURNS SETOF type_record AS $$
 return [{'first': 1, 'second': 2},
        {'first': 3, 'second': 4	}]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM singleout_composite();
 SELECT * FROM multiout_composite();
@@ -113,7 +113,7 @@ SELECT * FROM multiout_composite();
 -- composite OUT parameters in functions returning RECORD not supported yet
 CREATE FUNCTION multiout_composite(INOUT n integer, OUT type_record) AS $$
 return (n, (n * 2, n * 3))
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE FUNCTION multiout_table_type_setof(typ text, returnnull boolean, INOUT n integer, OUT table_record) RETURNS SETOF record AS $$
 if returnnull:
@@ -132,7 +132,7 @@ elif typ == 'str':
     d = "(%r,%r)" % (n * 2, n * 3)
 for i in range(n):
     yield (i, d)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM multiout_composite(2);
 SELECT * FROM multiout_table_type_setof('dict', 'f', 3);
@@ -157,7 +157,7 @@ CREATE TABLE changing (
 CREATE FUNCTION changing_test(OUT n integer, OUT changing) RETURNS SETOF record AS $$
 return [(1, {'i': 1, 'j': 2}),
         (1, (3, 4))]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM changing_test();
 ALTER TABLE changing DROP COLUMN j;
@@ -178,14 +178,14 @@ yield {'tab': [('first', 1), ('second', 2)],
 yield {'tab': [('first', 1), ('second', 2)],
       'typ': [{'first': 'third', 'second': 3},
               {'first': 'fourth', 'second': 4}]}
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM composite_types_table();
 
 -- check what happens if the output record descriptor changes
 CREATE FUNCTION return_record(t text) RETURNS record AS $$
 return {'t': t, 'val': 10}
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM return_record('abc') AS r(t text, val integer);
 SELECT * FROM return_record('abc') AS r(t text, val bigint);
@@ -196,7 +196,7 @@ SELECT * FROM return_record('999') AS r(val text, t integer);
 
 CREATE FUNCTION return_record_2(t text) RETURNS record AS $$
 return {'v1':1,'v2':2,t:3}
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM return_record_2('v3') AS (v3 int, v2 int, v1 int);
 SELECT * FROM return_record_2('v3') AS (v2 int, v3 int, v1 int);
@@ -211,7 +211,7 @@ SELECT * FROM return_record_2('v3') AS (v1 int, v2 int, v3 int);
 -- multi-dimensional array of composite types.
 CREATE FUNCTION composite_type_as_list()  RETURNS type_record[] AS $$
   return [[('first', 1), ('second', 1)], [('first', 2), ('second', 2)], [('first', 3), ('second', 3)]];
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM composite_type_as_list();
 
 -- Starting with PostgreSQL 10, a composite type in an array cannot be
@@ -220,5 +220,5 @@ SELECT * FROM composite_type_as_list();
 -- on the issue.
 CREATE FUNCTION composite_type_as_list_broken()  RETURNS type_record[] AS $$
   return [['first', 1]];
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM composite_type_as_list_broken();
diff --git a/src/pl/plpython/sql/plpython_do.sql b/src/pl/plpython/sql/plpython_do.sql
index 0e281a08ee8..d49413268e9 100644
--- a/src/pl/plpython/sql/plpython_do.sql
+++ b/src/pl/plpython/sql/plpython_do.sql
@@ -1,5 +1,3 @@
-DO $$ plpy.notice("This is plpythonu.") $$ LANGUAGE plpythonu;
+DO $$ plpy.notice("This is plpython3u.") $$ LANGUAGE plpython3u;
 
-DO $$ plpy.notice("This is plpython2u.") $$ LANGUAGE plpython2u;
-
-DO $$ raise Exception("error test") $$ LANGUAGE plpythonu;
+DO $$ raise Exception("error test") $$ LANGUAGE plpython3u;
diff --git a/src/pl/plpython/sql/plpython_drop.sql b/src/pl/plpython/sql/plpython_drop.sql
index 72d5d657ec3..e4f373b2bc7 100644
--- a/src/pl/plpython/sql/plpython_drop.sql
+++ b/src/pl/plpython/sql/plpython_drop.sql
@@ -3,6 +3,4 @@
 --
 SET client_min_messages = WARNING;
 
-DROP EXTENSION plpythonu CASCADE;
-
-DROP EXTENSION IF EXISTS plpython2u CASCADE;
+DROP EXTENSION plpython3u CASCADE;
diff --git a/src/pl/plpython/sql/plpython_ereport.sql b/src/pl/plpython/sql/plpython_ereport.sql
index 58df2057ef5..3bcf8f5cde9 100644
--- a/src/pl/plpython/sql/plpython_ereport.sql
+++ b/src/pl/plpython/sql/plpython_ereport.sql
@@ -17,28 +17,28 @@ plpy.info('This is message text.',
 plpy.notice('notice', detail='some detail')
 plpy.warning('warning', detail='some detail')
 plpy.error('stop on error', detail='some detail', hint='some hint')
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT elog_test();
 
-DO $$ plpy.info('other types', detail=(10, 20)) $$ LANGUAGE plpythonu;
+DO $$ plpy.info('other types', detail=(10, 20)) $$ LANGUAGE plpython3u;
 
 DO $$
 import time;
 from datetime import date
 plpy.info('other types', detail=date(2016, 2, 26))
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 DO $$
 basket = ['apple', 'orange', 'apple', 'pear', 'orange', 'banana']
 plpy.info('other types', detail=basket)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 -- should fail
-DO $$ plpy.info('wrong sqlstate', sqlstate='54444A') $$ LANGUAGE plpythonu;
-DO $$ plpy.info('unsupported argument', blabla='fooboo') $$ LANGUAGE plpythonu;
-DO $$ plpy.info('first message', message='second message') $$ LANGUAGE plpythonu;
-DO $$ plpy.info('first message', 'second message', message='third message') $$ LANGUAGE plpythonu;
+DO $$ plpy.info('wrong sqlstate', sqlstate='54444A') $$ LANGUAGE plpython3u;
+DO $$ plpy.info('unsupported argument', blabla='fooboo') $$ LANGUAGE plpython3u;
+DO $$ plpy.info('first message', message='second message') $$ LANGUAGE plpython3u;
+DO $$ plpy.info('first message', 'second message', message='third message') $$ LANGUAGE plpython3u;
 
 -- raise exception in python, handle exception in plgsql
 CREATE OR REPLACE FUNCTION raise_exception(_message text, _detail text DEFAULT NULL, _hint text DEFAULT NULL,
@@ -57,7 +57,7 @@ kwargs = {
 }
 # ignore None values
 plpy.error(**dict((k, v) for k, v in iter(kwargs.items()) if v))
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT raise_exception('hello', 'world');
 SELECT raise_exception('message text', 'detail text', _sqlstate => 'YY333');
@@ -128,7 +128,7 @@ try:
 except Exception as e:
     plpy.info(e.spidata)
     raise e
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 DO $$
 try:
@@ -136,4 +136,4 @@ try:
 except Exception as e:
     plpy.info('sqlstate: %s, hint: %s, table_name: %s, datatype_name: %s' % (e.sqlstate, e.hint, e.table_name, e.datatype_name))
     raise e
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
diff --git a/src/pl/plpython/sql/plpython_error.sql b/src/pl/plpython/sql/plpython_error.sql
index 88d6936fd0d..11f14ec5a7c 100644
--- a/src/pl/plpython/sql/plpython_error.sql
+++ b/src/pl/plpython/sql/plpython_error.sql
@@ -7,7 +7,7 @@
 CREATE FUNCTION python_syntax_error() RETURNS text
         AS
 '.syntaxerror'
-        LANGUAGE plpythonu;
+        LANGUAGE plpython3u;
 
 /* With check_function_bodies = false the function should get defined
  * and the error reported when called
@@ -17,7 +17,7 @@ SET check_function_bodies = false;
 CREATE FUNCTION python_syntax_error() RETURNS text
         AS
 '.syntaxerror'
-        LANGUAGE plpythonu;
+        LANGUAGE plpython3u;
 
 SELECT python_syntax_error();
 /* Run the function twice to check if the hashtable entry gets cleaned up */
@@ -30,7 +30,7 @@ RESET check_function_bodies;
 CREATE FUNCTION sql_syntax_error() RETURNS text
         AS
 'plpy.execute("syntax error")'
-        LANGUAGE plpythonu;
+        LANGUAGE plpython3u;
 
 SELECT sql_syntax_error();
 
@@ -40,7 +40,7 @@ SELECT sql_syntax_error();
 CREATE FUNCTION exception_index_invalid(text) RETURNS text
 	AS
 'return args[1]'
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 
 SELECT exception_index_invalid('test');
 
@@ -51,7 +51,7 @@ CREATE FUNCTION exception_index_invalid_nested() RETURNS text
 	AS
 'rv = plpy.execute("SELECT test5(''foo'')")
 return rv[0]'
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 
 SELECT exception_index_invalid_nested();
 
@@ -68,7 +68,7 @@ if len(rv):
 	return rv[0]["fname"]
 return None
 '
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 
 SELECT invalid_type_uncaught('rick');
 
@@ -90,7 +90,7 @@ if len(rv):
 	return rv[0]["fname"]
 return None
 '
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 
 SELECT invalid_type_caught('rick');
 
@@ -111,7 +111,7 @@ if len(rv):
 	return rv[0]["fname"]
 return None
 '
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 
 SELECT invalid_type_reraised('rick');
 
@@ -127,7 +127,7 @@ if len(rv):
 	return rv[0]["fname"]
 return None
 '
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 
 SELECT valid_type('rick');
 
@@ -147,7 +147,7 @@ def fun3():
 fun3()
 return "not reached"
 '
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 
 SELECT nested_error();
 
@@ -167,7 +167,7 @@ def fun3():
 fun3()
 return "not reached"
 '
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 
 SELECT nested_error_raise();
 
@@ -187,7 +187,7 @@ def fun3():
 fun3()
 return "you''ve been warned"
 '
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 
 SELECT nested_warning();
 
@@ -196,7 +196,7 @@ SELECT nested_warning();
 CREATE FUNCTION toplevel_attribute_error() RETURNS void AS
 $$
 plpy.nonexistent
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT toplevel_attribute_error();
 
@@ -213,7 +213,7 @@ def third():
   plpy.execute("select sql_error()")
 
 first()
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE OR REPLACE FUNCTION sql_error() RETURNS void AS $$
 begin
@@ -229,7 +229,7 @@ $$ LANGUAGE plpgsql;
 
 CREATE OR REPLACE FUNCTION sql_from_python_error() RETURNS void AS $$
 plpy.execute("select sql_error()")
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT python_traceback();
 SELECT sql_error();
@@ -251,7 +251,7 @@ except spiexceptions.NotNullViolation as e:
     plpy.notice("Violated the NOT NULL constraint, sqlstate %s" % e.sqlstate)
 except spiexceptions.UniqueViolation as e:
     plpy.notice("Violated the UNIQUE constraint, sqlstate %s" % e.sqlstate)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT specific_exception(2);
 SELECT specific_exception(NULL);
@@ -262,7 +262,7 @@ SELECT specific_exception(2);
 CREATE FUNCTION python_unique_violation() RETURNS void AS $$
 plpy.execute("insert into specific values (1)")
 plpy.execute("insert into specific values (1)")
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE FUNCTION catch_python_unique_violation() RETURNS text AS $$
 begin
@@ -283,7 +283,7 @@ CREATE FUNCTION manual_subxact() RETURNS void AS $$
 plpy.execute("savepoint save")
 plpy.execute("create table foo(x integer)")
 plpy.execute("rollback to save")
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT manual_subxact();
 
@@ -295,7 +295,7 @@ rollback = plpy.prepare("rollback to save")
 plpy.execute(save)
 plpy.execute("create table foo(x integer)")
 plpy.execute(rollback)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT manual_subxact_prepared();
 
@@ -303,7 +303,7 @@ SELECT manual_subxact_prepared();
  */
 CREATE FUNCTION plpy_raise_spiexception() RETURNS void AS $$
 raise plpy.spiexceptions.DivisionByZero()
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 DO $$
 BEGIN
@@ -319,7 +319,7 @@ CREATE FUNCTION plpy_raise_spiexception_override() RETURNS void AS $$
 exc = plpy.spiexceptions.DivisionByZero()
 exc.sqlstate = 'SILLY'
 raise exc
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 DO $$
 BEGIN
@@ -332,14 +332,14 @@ $$ LANGUAGE plpgsql;
 /* test the context stack trace for nested execution levels
  */
 CREATE FUNCTION notice_innerfunc() RETURNS int AS $$
-plpy.execute("DO LANGUAGE plpythonu $x$ plpy.notice('inside DO') $x$")
+plpy.execute("DO LANGUAGE plpython3u $x$ plpy.notice('inside DO') $x$")
 return 1
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE FUNCTION notice_outerfunc() RETURNS int AS $$
 plpy.execute("SELECT notice_innerfunc()")
 return 1
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 \set SHOW_CONTEXT always
 
diff --git a/src/pl/plpython/sql/plpython_global.sql b/src/pl/plpython/sql/plpython_global.sql
index 32502b41eee..96d20492861 100644
--- a/src/pl/plpython/sql/plpython_global.sql
+++ b/src/pl/plpython/sql/plpython_global.sql
@@ -9,7 +9,7 @@ CREATE FUNCTION global_test_one() returns text
 if "global_test" not in GD:
 	GD["global_test"] = "set by global_test_one"
 return "SD: " + SD["global_test"] + ", GD: " + GD["global_test"]'
-    LANGUAGE plpythonu;
+    LANGUAGE plpython3u;
 
 CREATE FUNCTION global_test_two() returns text
     AS
@@ -18,7 +18,7 @@ CREATE FUNCTION global_test_two() returns text
 if "global_test" not in GD:
 	GD["global_test"] = "set by global_test_two"
 return "SD: " + SD["global_test"] + ", GD: " + GD["global_test"]'
-    LANGUAGE plpythonu;
+    LANGUAGE plpython3u;
 
 
 CREATE FUNCTION static_test() returns int4
@@ -29,7 +29,7 @@ else:
 	SD["call"] = 1
 return SD["call"]
 '
-    LANGUAGE plpythonu;
+    LANGUAGE plpython3u;
 
 
 SELECT static_test();
diff --git a/src/pl/plpython/sql/plpython_import.sql b/src/pl/plpython/sql/plpython_import.sql
index ec887677e1e..3031eef2e69 100644
--- a/src/pl/plpython/sql/plpython_import.sql
+++ b/src/pl/plpython/sql/plpython_import.sql
@@ -7,7 +7,7 @@ CREATE FUNCTION import_fail() returns text
 except ImportError:
 	return "failed as expected"
 return "succeeded, that wasn''t supposed to happen"'
-    LANGUAGE plpythonu;
+    LANGUAGE plpython3u;
 
 
 CREATE FUNCTION import_succeed() returns text
@@ -28,7 +28,7 @@ except Exception as ex:
 	plpy.notice("import failed -- %s" % str(ex))
 	return "failed, that wasn''t supposed to happen"
 return "succeeded, as expected"'
-    LANGUAGE plpythonu;
+    LANGUAGE plpython3u;
 
 CREATE FUNCTION import_test_one(p text) RETURNS text
 	AS
@@ -39,7 +39,7 @@ except ImportError:
     import sha
     digest = sha.new(p)
 return digest.hexdigest()'
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 
 CREATE FUNCTION import_test_two(u users) RETURNS text
 	AS
@@ -51,7 +51,7 @@ except ImportError:
     import sha
     digest = sha.new(plain);
 return "sha hash of " + plain + " is " + digest.hexdigest()'
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 
 
 -- import python modules
diff --git a/src/pl/plpython/sql/plpython_newline.sql b/src/pl/plpython/sql/plpython_newline.sql
index f9cee9491bb..cb22ba923f9 100644
--- a/src/pl/plpython/sql/plpython_newline.sql
+++ b/src/pl/plpython/sql/plpython_newline.sql
@@ -4,15 +4,15 @@
 
 CREATE OR REPLACE FUNCTION newline_lf() RETURNS integer AS
 E'x = 100\ny = 23\nreturn x + y\n'
-LANGUAGE plpythonu;
+LANGUAGE plpython3u;
 
 CREATE OR REPLACE FUNCTION newline_cr() RETURNS integer AS
 E'x = 100\ry = 23\rreturn x + y\r'
-LANGUAGE plpythonu;
+LANGUAGE plpython3u;
 
 CREATE OR REPLACE FUNCTION newline_crlf() RETURNS integer AS
 E'x = 100\r\ny = 23\r\nreturn x + y\r\n'
-LANGUAGE plpythonu;
+LANGUAGE plpython3u;
 
 
 SELECT newline_lf();
diff --git a/src/pl/plpython/sql/plpython_params.sql b/src/pl/plpython/sql/plpython_params.sql
index ee75c4dc410..8bab4888592 100644
--- a/src/pl/plpython/sql/plpython_params.sql
+++ b/src/pl/plpython/sql/plpython_params.sql
@@ -4,13 +4,13 @@
 
 CREATE FUNCTION test_param_names0(integer, integer) RETURNS int AS $$
 return args[0] + args[1]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE FUNCTION test_param_names1(a0 integer, a1 text) RETURNS boolean AS $$
 assert a0 == args[0]
 assert a1 == args[1]
 return True
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE FUNCTION test_param_names2(u users) RETURNS text AS $$
 assert u == args[0]
@@ -22,7 +22,7 @@ if isinstance(u, dict):
 else:
     s = str(u)
 return s
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 -- use deliberately wrong parameter names
 CREATE FUNCTION test_param_names3(a0 integer) RETURNS boolean AS $$
@@ -32,7 +32,7 @@ try:
 except NameError as e:
 	assert e.args[0].find("a1") > -1
 	return True
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 
 SELECT test_param_names0(2,7);
diff --git a/src/pl/plpython/sql/plpython_quote.sql b/src/pl/plpython/sql/plpython_quote.sql
index 346b5485daf..a1133e7e266 100644
--- a/src/pl/plpython/sql/plpython_quote.sql
+++ b/src/pl/plpython/sql/plpython_quote.sql
@@ -9,7 +9,7 @@ CREATE FUNCTION quote(t text, how text) RETURNS text AS $$
         return plpy.quote_ident(t)
     else:
         raise plpy.Error("unrecognized quote type %s" % how)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT quote(t, 'literal') FROM (VALUES
        ('abc'),
diff --git a/src/pl/plpython/sql/plpython_record.sql b/src/pl/plpython/sql/plpython_record.sql
index 9bab4c9e82d..52bad8bccea 100644
--- a/src/pl/plpython/sql/plpython_record.sql
+++ b/src/pl/plpython/sql/plpython_record.sql
@@ -27,7 +27,7 @@ elif typ == 'obj':
 	type_record.first = first
 	type_record.second = second
 	return type_record
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE FUNCTION test_type_record_as(typ text, first text, second integer, retnull boolean) RETURNS type_record AS $$
 if retnull:
@@ -45,20 +45,20 @@ elif typ == 'obj':
 	return type_record
 elif typ == 'str':
 	return "('%s',%r)" % (first, second)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE FUNCTION test_in_out_params(first in text, second out text) AS $$
 return first + '_in_to_out';
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE FUNCTION test_in_out_params_multi(first in text,
                                          second out text, third out text) AS $$
 return (first + '_record_in_to_out_1', first + '_record_in_to_out_2');
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE FUNCTION test_inout_params(first inout text) AS $$
 return first + '_inout';
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 
 -- Test tuple returning functions
@@ -136,14 +136,14 @@ SELECT * FROM test_type_record_as('obj', 'one', 1, false);
 
 CREATE FUNCTION test_type_record_error1() RETURNS type_record AS $$
     return { 'first': 'first' }
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_record_error1();
 
 
 CREATE FUNCTION test_type_record_error2() RETURNS type_record AS $$
     return [ 'first' ]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_record_error2();
 
@@ -152,12 +152,12 @@ CREATE FUNCTION test_type_record_error3() RETURNS type_record AS $$
     class type_record: pass
     type_record.first = 'first'
     return type_record
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_record_error3();
 
 CREATE FUNCTION test_type_record_error4() RETURNS type_record AS $$
     return 'foo'
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_record_error4();
diff --git a/src/pl/plpython/sql/plpython_setof.sql b/src/pl/plpython/sql/plpython_setof.sql
index 16c2eef0ad6..4cfb10192c0 100644
--- a/src/pl/plpython/sql/plpython_setof.sql
+++ b/src/pl/plpython/sql/plpython_setof.sql
@@ -4,21 +4,21 @@
 
 CREATE FUNCTION test_setof_error() RETURNS SETOF text AS $$
 return 37
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT test_setof_error();
 
 
 CREATE FUNCTION test_setof_as_list(count integer, content text) RETURNS SETOF text AS $$
 return [ content ]*count
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE FUNCTION test_setof_as_tuple(count integer, content text) RETURNS SETOF text AS $$
 t = ()
 for i in range(count):
 	t += ( content, )
 return t
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE FUNCTION test_setof_as_iterator(count integer, content text) RETURNS SETOF text AS $$
 class producer:
@@ -27,13 +27,13 @@ class producer:
 		self.icount = icount
 	def __iter__ (self):
 		return self
-	def next (self):
+	def __next__ (self):
 		if self.icount == 0:
 			raise StopIteration
 		self.icount -= 1
 		return self.icontent
 return producer(count, content)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE FUNCTION test_setof_spi_in_iterator() RETURNS SETOF text AS
 $$
@@ -42,7 +42,7 @@ $$
         yield s
         plpy.execute('select 2')
 $$
-LANGUAGE plpythonu;
+LANGUAGE plpython3u;
 
 
 -- Test set returning functions
@@ -69,7 +69,7 @@ global x
 while x <= lim:
     yield x
     x = x + 1
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT ugly(1, 5);
 
@@ -81,7 +81,7 @@ CREATE OR REPLACE FUNCTION get_user_records()
 RETURNS SETOF users
 AS $$
     return plpy.execute("SELECT * FROM users ORDER BY username")
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT get_user_records();
 SELECT * FROM get_user_records();
@@ -91,7 +91,7 @@ CREATE OR REPLACE FUNCTION get_user_records2()
 RETURNS TABLE(fname text, lname text, username text, userid int)
 AS $$
     return plpy.execute("SELECT * FROM users ORDER BY username")
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT get_user_records2();
 SELECT * FROM get_user_records2();
diff --git a/src/pl/plpython/sql/plpython_spi.sql b/src/pl/plpython/sql/plpython_spi.sql
index dd77833ed56..112add93fc9 100644
--- a/src/pl/plpython/sql/plpython_spi.sql
+++ b/src/pl/plpython/sql/plpython_spi.sql
@@ -7,19 +7,19 @@ CREATE FUNCTION nested_call_one(a text) RETURNS text
 'q = "SELECT nested_call_two(''%s'')" % a
 r = plpy.execute(q)
 return r[0]'
-	LANGUAGE plpythonu ;
+	LANGUAGE plpython3u ;
 
 CREATE FUNCTION nested_call_two(a text) RETURNS text
 	AS
 'q = "SELECT nested_call_three(''%s'')" % a
 r = plpy.execute(q)
 return r[0]'
-	LANGUAGE plpythonu ;
+	LANGUAGE plpython3u ;
 
 CREATE FUNCTION nested_call_three(a text) RETURNS text
 	AS
 'return a'
-	LANGUAGE plpythonu ;
+	LANGUAGE plpython3u ;
 
 -- some spi stuff
 
@@ -35,7 +35,7 @@ except Exception as ex:
 	plpy.error(str(ex))
 return None
 '
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 
 CREATE FUNCTION spi_prepared_plan_test_two(a text) RETURNS text
 	AS
@@ -49,7 +49,7 @@ except Exception as ex:
 	plpy.error(str(ex))
 return None
 '
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 
 CREATE FUNCTION spi_prepared_plan_test_nested(a text) RETURNS text
 	AS
@@ -64,7 +64,7 @@ except Exception as ex:
 	plpy.error(str(ex))
 return None
 '
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 
 CREATE FUNCTION join_sequences(s sequences) RETURNS text
 	AS
@@ -77,7 +77,7 @@ for r in rv:
 	seq = seq + r["sequence"]
 return seq
 '
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 
 CREATE FUNCTION spi_recursive_sum(a int) RETURNS int
 	AS
@@ -86,7 +86,7 @@ if a > 1:
     r = plpy.execute("SELECT spi_recursive_sum(%d) as a" % (a-1))[0]["a"]
 return a + r
 '
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 
 --
 -- spi and nested calls
@@ -120,7 +120,7 @@ if result.status() > 0:
    return result.nrows()
 else:
    return None
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT result_metadata_test($$SELECT 1 AS foo, '11'::text AS bar UNION SELECT 2, '22'$$);
 SELECT result_metadata_test($$CREATE TEMPORARY TABLE foo1 (a int, b text)$$);
@@ -129,7 +129,7 @@ CREATE FUNCTION result_nrows_test(cmd text) RETURNS int
 AS $$
 result = plpy.execute(cmd)
 return result.nrows()
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT result_nrows_test($$SELECT 1$$);
 SELECT result_nrows_test($$CREATE TEMPORARY TABLE foo2 (a int, b text)$$);
@@ -140,7 +140,7 @@ CREATE FUNCTION result_len_test(cmd text) RETURNS int
 AS $$
 result = plpy.execute(cmd)
 return len(result)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT result_len_test($$SELECT 1$$);
 SELECT result_len_test($$CREATE TEMPORARY TABLE foo3 (a int, b text)$$);
@@ -170,7 +170,7 @@ except TypeError:
 else:
     assert False, "TypeError not raised"
 
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT result_subscript_test();
 
@@ -180,7 +180,7 @@ result = plpy.execute("select 1 where false")
 
 plpy.info(result[:])
 
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT result_empty_test();
 
@@ -189,7 +189,7 @@ AS $$
 plan = plpy.prepare(cmd)
 result = plpy.execute(plan)
 return str(result)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT result_str_test($$SELECT 1 AS foo UNION SELECT 2$$);
 SELECT result_str_test($$CREATE TEMPORARY TABLE foo1 (a int, b text)$$);
@@ -203,13 +203,13 @@ for row in res:
     if row['lname'] == 'doe':
         does += 1
 return does
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE FUNCTION double_cursor_close() RETURNS int AS $$
 res = plpy.cursor("select fname, lname from users")
 res.close()
 res.close()
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE FUNCTION cursor_fetch() RETURNS int AS $$
 res = plpy.cursor("select fname, lname from users")
@@ -228,7 +228,7 @@ except StopIteration:
     pass
 else:
     assert False, "StopIteration not raised"
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE FUNCTION cursor_mix_next_and_fetch() RETURNS int AS $$
 res = plpy.cursor("select fname, lname from users order by fname")
@@ -242,7 +242,7 @@ except AttributeError:
 assert item['fname'] == 'rick'
 
 assert len(res.fetch(2)) == 1
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE FUNCTION fetch_after_close() RETURNS int AS $$
 res = plpy.cursor("select fname, lname from users")
@@ -253,7 +253,7 @@ except ValueError:
     pass
 else:
     assert False, "ValueError not raised"
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE FUNCTION next_after_close() RETURNS int AS $$
 res = plpy.cursor("select fname, lname from users")
@@ -267,7 +267,7 @@ except ValueError:
     pass
 else:
     assert False, "ValueError not raised"
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE FUNCTION cursor_fetch_next_empty() RETURNS int AS $$
 res = plpy.cursor("select fname, lname from users where false")
@@ -281,7 +281,7 @@ except StopIteration:
     pass
 else:
     assert False, "StopIteration not raised"
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE FUNCTION cursor_plan() RETURNS SETOF text AS $$
 plan = plpy.prepare(
@@ -291,13 +291,13 @@ for row in plpy.cursor(plan, ["w"]):
     yield row['fname']
 for row in plan.cursor(["j"]):
     yield row['fname']
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE FUNCTION cursor_plan_wrong_args() RETURNS SETOF text AS $$
 plan = plpy.prepare("select fname, lname from users where fname like $1 || '%'",
                     ["text"])
 c = plpy.cursor(plan, ["a", "b"])
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE TYPE test_composite_type AS (
   a1 int,
@@ -308,7 +308,7 @@ CREATE OR REPLACE FUNCTION plan_composite_args() RETURNS test_composite_type AS
 plan = plpy.prepare("select $1 as c1", ["test_composite_type"])
 res = plpy.execute(plan, [{"a1": 3, "a2": "label"}])
 return res[0]["c1"]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT simple_cursor_test();
 SELECT double_cursor_close();
diff --git a/src/pl/plpython/sql/plpython_subtransaction.sql b/src/pl/plpython/sql/plpython_subtransaction.sql
index cc4b1ae102b..c65c380f40c 100644
--- a/src/pl/plpython/sql/plpython_subtransaction.sql
+++ b/src/pl/plpython/sql/plpython_subtransaction.sql
@@ -17,7 +17,7 @@ with plpy.subtransaction():
         plpy.execute("INSERT INTO subtransaction_tbl VALUES ('oops')")
     elif what_error == "Python":
         raise Exception("Python exception")
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT subtransaction_ctx_test();
 SELECT * FROM subtransaction_tbl;
@@ -45,7 +45,7 @@ with plpy.subtransaction():
             raise
         plpy.notice("Swallowed %s(%r)" % (e.__class__.__name__, e.args[0]))
 return "ok"
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT subtransaction_nested_test();
 SELECT * FROM subtransaction_tbl;
@@ -65,7 +65,7 @@ with plpy.subtransaction():
     plpy.execute("INSERT INTO subtransaction_tbl VALUES (2)")
     plpy.execute("SELECT subtransaction_nested_test('t')")
 return "ok"
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT subtransaction_deeply_nested_test();
 SELECT * FROM subtransaction_tbl;
@@ -76,25 +76,25 @@ TRUNCATE subtransaction_tbl;
 CREATE FUNCTION subtransaction_exit_without_enter() RETURNS void
 AS $$
 plpy.subtransaction().__exit__(None, None, None)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE FUNCTION subtransaction_enter_without_exit() RETURNS void
 AS $$
 plpy.subtransaction().__enter__()
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE FUNCTION subtransaction_exit_twice() RETURNS void
 AS $$
 plpy.subtransaction().__enter__()
 plpy.subtransaction().__exit__(None, None, None)
 plpy.subtransaction().__exit__(None, None, None)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE FUNCTION subtransaction_enter_twice() RETURNS void
 AS $$
 plpy.subtransaction().__enter__()
 plpy.subtransaction().__enter__()
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE FUNCTION subtransaction_exit_same_subtransaction_twice() RETURNS void
 AS $$
@@ -102,7 +102,7 @@ s = plpy.subtransaction()
 s.__enter__()
 s.__exit__(None, None, None)
 s.__exit__(None, None, None)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE FUNCTION subtransaction_enter_same_subtransaction_twice() RETURNS void
 AS $$
@@ -110,14 +110,14 @@ s = plpy.subtransaction()
 s.__enter__()
 s.__enter__()
 s.__exit__(None, None, None)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 -- No warnings here, as the subtransaction gets indeed closed
 CREATE FUNCTION subtransaction_enter_subtransaction_in_with() RETURNS void
 AS $$
 with plpy.subtransaction() as s:
     s.__enter__()
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE FUNCTION subtransaction_exit_subtransaction_in_with() RETURNS void
 AS $$
@@ -126,7 +126,7 @@ try:
         s.__exit__(None, None, None)
 except ValueError as e:
     raise ValueError(e)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT subtransaction_exit_without_enter();
 SELECT subtransaction_enter_without_exit();
@@ -159,7 +159,7 @@ try:
     plpy.execute(p, ["wrong"])
 except plpy.SPIError:
     plpy.warning("Caught a SPI error")
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT subtransaction_mix_explicit_and_implicit();
 SELECT * FROM subtransaction_tbl;
@@ -172,7 +172,7 @@ AS $$
 s = plpy.subtransaction()
 s.enter()
 s.exit(None, None, None)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT subtransaction_alternative_names();
 
@@ -186,7 +186,7 @@ with plpy.subtransaction():
          plpy.execute("INSERT INTO subtransaction_tbl VALUES ('a')")
      except plpy.SPIError:
          plpy.notice("caught")
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT try_catch_inside_subtransaction();
 SELECT * FROM subtransaction_tbl;
@@ -202,7 +202,7 @@ with plpy.subtransaction():
          plpy.execute("INSERT INTO subtransaction_tbl VALUES (1)")
      except plpy.SPIError:
          plpy.notice("caught")
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT pk_violation_inside_subtransaction();
 SELECT * FROM subtransaction_tbl;
@@ -217,7 +217,7 @@ with plpy.subtransaction():
     cur.fetch(10)
 fetched = cur.fetch(10);
 return int(fetched[5]["i"])
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE FUNCTION cursor_aborted_subxact() RETURNS int AS $$
 try:
@@ -229,7 +229,7 @@ except plpy.SPIError:
     fetched = cur.fetch(10)
     return int(fetched[5]["i"])
 return 0 # not reached
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE FUNCTION cursor_plan_aborted_subxact() RETURNS int AS $$
 try:
@@ -243,7 +243,7 @@ except plpy.SPIError:
     fetched = cur.fetch(5)
     return fetched[2]["i"]
 return 0 # not reached
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE FUNCTION cursor_close_aborted_subxact() RETURNS boolean AS $$
 try:
@@ -254,7 +254,7 @@ except plpy.SPIError:
     cur.close()
     return True
 return False # not reached
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT cursor_in_subxact();
 SELECT cursor_aborted_subxact();
diff --git a/src/pl/plpython/sql/plpython_test.sql b/src/pl/plpython/sql/plpython_test.sql
index 5f1be9c94a8..aa22a274155 100644
--- a/src/pl/plpython/sql/plpython_test.sql
+++ b/src/pl/plpython/sql/plpython_test.sql
@@ -1,13 +1,13 @@
 -- first some tests of basic functionality
-CREATE EXTENSION plpython2u;
+CREATE EXTENSION plpython3u;
 
 -- really stupid function just to get the module loaded
-CREATE FUNCTION stupid() RETURNS text AS 'return "zarkon"' LANGUAGE plpythonu;
+CREATE FUNCTION stupid() RETURNS text AS 'return "zarkon"' LANGUAGE plpython3u;
 
 select stupid();
 
 -- check 2/3 versioning
-CREATE FUNCTION stupidn() RETURNS text AS 'return "zarkon"' LANGUAGE plpython2u;
+CREATE FUNCTION stupidn() RETURNS text AS 'return "zarkon"' LANGUAGE plpython3u;
 
 select stupidn();
 
@@ -21,7 +21,7 @@ for key in keys:
     out.append("%s: %s" % (key, u[key]))
 words = a1 + " " + a2 + " => {" + ", ".join(out) + "}"
 return words'
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 
 select "Argument test #1"(users, fname, lname) from users where lname = 'doe' order by 1;
 
@@ -32,7 +32,7 @@ $$
 contents = list(filter(lambda x: not x.startswith("__"), dir(plpy)))
 contents.sort()
 return contents
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 select module_contents();
 
@@ -47,6 +47,6 @@ plpy.info('info', 37, [1, 2, 3])
 plpy.notice('notice')
 plpy.warning('warning')
 plpy.error('error')
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT elog_test_basic();
diff --git a/src/pl/plpython/sql/plpython_transaction.sql b/src/pl/plpython/sql/plpython_transaction.sql
index 33b37e5b7fc..f9062254572 100644
--- a/src/pl/plpython/sql/plpython_transaction.sql
+++ b/src/pl/plpython/sql/plpython_transaction.sql
@@ -2,7 +2,7 @@ CREATE TABLE test1 (a int, b text);
 
 
 CREATE PROCEDURE transaction_test1()
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 AS $$
 for i in range(0, 10):
     plpy.execute("INSERT INTO test1 (a) VALUES (%d)" % i)
@@ -20,7 +20,7 @@ SELECT * FROM test1;
 TRUNCATE test1;
 
 DO
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 $$
 for i in range(0, 10):
     plpy.execute("INSERT INTO test1 (a) VALUES (%d)" % i)
@@ -37,7 +37,7 @@ TRUNCATE test1;
 
 -- not allowed in a function
 CREATE FUNCTION transaction_test2() RETURNS int
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 AS $$
 for i in range(0, 10):
     plpy.execute("INSERT INTO test1 (a) VALUES (%d)" % i)
@@ -55,7 +55,7 @@ SELECT * FROM test1;
 
 -- also not allowed if procedure is called from a function
 CREATE FUNCTION transaction_test3() RETURNS int
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 AS $$
 plpy.execute("CALL transaction_test1()")
 return 1
@@ -68,9 +68,9 @@ SELECT * FROM test1;
 
 -- DO block inside function
 CREATE FUNCTION transaction_test4() RETURNS int
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 AS $$
-plpy.execute("DO LANGUAGE plpythonu $x$ plpy.commit() $x$")
+plpy.execute("DO LANGUAGE plpython3u $x$ plpy.commit() $x$")
 return 1
 $$;
 
@@ -78,7 +78,7 @@ SELECT transaction_test4();
 
 
 -- commit inside subtransaction (prohibited)
-DO LANGUAGE plpythonu $$
+DO LANGUAGE plpython3u $$
 s = plpy.subtransaction()
 s.enter()
 plpy.commit()
@@ -91,7 +91,7 @@ INSERT INTO test2 VALUES (0), (1), (2), (3), (4);
 
 TRUNCATE test1;
 
-DO LANGUAGE plpythonu $$
+DO LANGUAGE plpython3u $$
 for row in plpy.cursor("SELECT * FROM test2 ORDER BY x"):
     plpy.execute("INSERT INTO test1 (a) VALUES (%s)" % row['x'])
     plpy.commit()
@@ -106,7 +106,7 @@ SELECT * FROM pg_cursors;
 -- error in cursor loop with commit
 TRUNCATE test1;
 
-DO LANGUAGE plpythonu $$
+DO LANGUAGE plpython3u $$
 for row in plpy.cursor("SELECT * FROM test2 ORDER BY x"):
     plpy.execute("INSERT INTO test1 (a) VALUES (12/(%s-2))" % row['x'])
     plpy.commit()
@@ -120,7 +120,7 @@ SELECT * FROM pg_cursors;
 -- rollback inside cursor loop
 TRUNCATE test1;
 
-DO LANGUAGE plpythonu $$
+DO LANGUAGE plpython3u $$
 for row in plpy.cursor("SELECT * FROM test2 ORDER BY x"):
     plpy.execute("INSERT INTO test1 (a) VALUES (%s)" % row['x'])
     plpy.rollback()
@@ -134,7 +134,7 @@ SELECT * FROM pg_cursors;
 -- first commit then rollback inside cursor loop
 TRUNCATE test1;
 
-DO LANGUAGE plpythonu $$
+DO LANGUAGE plpython3u $$
 for row in plpy.cursor("SELECT * FROM test2 ORDER BY x"):
     plpy.execute("INSERT INTO test1 (a) VALUES (%s)" % row['x'])
     if row['x'] % 2 == 0:
diff --git a/src/pl/plpython/sql/plpython_trigger.sql b/src/pl/plpython/sql/plpython_trigger.sql
index 19852dc5851..e5504b9ab1d 100644
--- a/src/pl/plpython/sql/plpython_trigger.sql
+++ b/src/pl/plpython/sql/plpython_trigger.sql
@@ -16,7 +16,7 @@ if TD["new"]["fname"] == "william":
 	TD["new"]["fname"] = TD["args"][0]
 	rv = "MODIFY"
 return rv'
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 
 
 CREATE FUNCTION users_update() returns trigger
@@ -25,7 +25,7 @@ CREATE FUNCTION users_update() returns trigger
 	if TD["old"]["fname"] != TD["new"]["fname"] and TD["old"]["fname"] == TD["args"][0]:
 		return "SKIP"
 return None'
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 
 
 CREATE FUNCTION users_delete() RETURNS trigger
@@ -33,7 +33,7 @@ CREATE FUNCTION users_delete() RETURNS trigger
 'if TD["old"]["fname"] == TD["args"][0]:
 	return "SKIP"
 return None'
-	LANGUAGE plpythonu;
+	LANGUAGE plpython3u;
 
 
 CREATE TRIGGER users_insert_trig BEFORE INSERT ON users FOR EACH ROW
@@ -72,7 +72,7 @@ CREATE TABLE trigger_test_generated (
         j int GENERATED ALWAYS AS (i * 2) STORED
 );
 
-CREATE FUNCTION trigger_data() RETURNS trigger LANGUAGE plpythonu AS $$
+CREATE FUNCTION trigger_data() RETURNS trigger LANGUAGE plpython3u AS $$
 
 if 'relid' in TD:
 	TD['relid'] = "bogus:12345"
@@ -157,7 +157,7 @@ INSERT INTO trigger_test VALUES (0, 'zero');
 CREATE FUNCTION stupid1() RETURNS trigger
 AS $$
     return 37
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE TRIGGER stupid_trigger1
 BEFORE INSERT ON trigger_test
@@ -173,7 +173,7 @@ DROP TRIGGER stupid_trigger1 ON trigger_test;
 CREATE FUNCTION stupid2() RETURNS trigger
 AS $$
     return "MODIFY"
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE TRIGGER stupid_trigger2
 BEFORE DELETE ON trigger_test
@@ -191,7 +191,7 @@ INSERT INTO trigger_test VALUES (0, 'zero');
 CREATE FUNCTION stupid3() RETURNS trigger
 AS $$
     return "foo"
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE TRIGGER stupid_trigger3
 BEFORE UPDATE ON trigger_test
@@ -206,8 +206,8 @@ DROP TRIGGER stupid_trigger3 ON trigger_test;
 
 CREATE FUNCTION stupid3u() RETURNS trigger
 AS $$
-    return u"foo"
-$$ LANGUAGE plpythonu;
+    return "foo"
+$$ LANGUAGE plpython3u;
 
 CREATE TRIGGER stupid_trigger3
 BEFORE UPDATE ON trigger_test
@@ -224,7 +224,7 @@ CREATE FUNCTION stupid4() RETURNS trigger
 AS $$
     del TD["new"]
     return "MODIFY";
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE TRIGGER stupid_trigger4
 BEFORE UPDATE ON trigger_test
@@ -241,7 +241,7 @@ CREATE FUNCTION stupid5() RETURNS trigger
 AS $$
     TD["new"] = ['foo', 'bar']
     return "MODIFY";
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE TRIGGER stupid_trigger5
 BEFORE UPDATE ON trigger_test
@@ -258,7 +258,7 @@ CREATE FUNCTION stupid6() RETURNS trigger
 AS $$
     TD["new"] = {1: 'foo', 2: 'bar'}
     return "MODIFY";
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE TRIGGER stupid_trigger6
 BEFORE UPDATE ON trigger_test
@@ -275,7 +275,7 @@ CREATE FUNCTION stupid7() RETURNS trigger
 AS $$
     TD["new"] = {'v': 'foo', 'a': 'bar'}
     return "MODIFY";
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE TRIGGER stupid_trigger7
 BEFORE UPDATE ON trigger_test
@@ -290,9 +290,9 @@ DROP TRIGGER stupid_trigger7 ON trigger_test;
 
 CREATE FUNCTION stupid7u() RETURNS trigger
 AS $$
-    TD["new"] = {u'v': 'foo', u'a': 'bar'}
+    TD["new"] = {'v': 'foo', 'a': 'bar'}
     return "MODIFY"
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE TRIGGER stupid_trigger7
 BEFORE UPDATE ON trigger_test
@@ -318,7 +318,7 @@ CREATE FUNCTION test_null() RETURNS trigger
 AS $$
     TD["new"]['v'] = None
     return "MODIFY"
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE TRIGGER test_null_trigger
 BEFORE UPDATE ON trigger_test
@@ -341,7 +341,7 @@ SET DateStyle = 'ISO';
 CREATE FUNCTION set_modif_time() RETURNS trigger AS $$
     TD['new']['modif_time'] = '2010-10-13 21:57:28.930486'
     return 'MODIFY'
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE TABLE pb (a TEXT, modif_time TIMESTAMP(0) WITHOUT TIME ZONE);
 
@@ -365,7 +365,7 @@ CREATE FUNCTION composite_trigger_f() RETURNS trigger AS $$
     TD['new']['f1'] = (3, False)
     TD['new']['f2'] = {'k': 7, 'l': 'yes', 'ignored': 10}
     return 'MODIFY'
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE TRIGGER composite_trigger BEFORE INSERT ON composite_trigger_test
   FOR EACH ROW EXECUTE PROCEDURE composite_trigger_f();
@@ -380,7 +380,7 @@ CREATE TABLE composite_trigger_noop_test (f1 comp1, f2 comp2);
 
 CREATE FUNCTION composite_trigger_noop_f() RETURNS trigger AS $$
     return 'MODIFY'
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE TRIGGER composite_trigger_noop BEFORE INSERT ON composite_trigger_noop_test
   FOR EACH ROW EXECUTE PROCEDURE composite_trigger_noop_f();
@@ -399,7 +399,7 @@ CREATE TABLE composite_trigger_nested_test(c comp3);
 
 CREATE FUNCTION composite_trigger_nested_f() RETURNS trigger AS $$
     return 'MODIFY'
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE TRIGGER composite_trigger_nested BEFORE INSERT ON composite_trigger_nested_test
   FOR EACH ROW EXECUTE PROCEDURE composite_trigger_nested_f();
@@ -410,7 +410,7 @@ INSERT INTO composite_trigger_nested_test VALUES (ROW(ROW(NULL, 't'), ROW(1, 'f'
 SELECT * FROM composite_trigger_nested_test;
 
 -- check that using a function as a trigger over two tables works correctly
-CREATE FUNCTION trig1234() RETURNS trigger LANGUAGE plpythonu AS $$
+CREATE FUNCTION trig1234() RETURNS trigger LANGUAGE plpython3u AS $$
     TD["new"]["data"] = '1234'
     return 'MODIFY'
 $$;
@@ -432,7 +432,7 @@ SELECT * FROM b;
 CREATE TABLE transition_table_test (id int, name text);
 INSERT INTO transition_table_test VALUES (1, 'a');
 
-CREATE FUNCTION transition_table_test_f() RETURNS trigger LANGUAGE plpythonu AS
+CREATE FUNCTION transition_table_test_f() RETURNS trigger LANGUAGE plpython3u AS
 $$
     rv = plpy.execute("SELECT * FROM old_table")
     assert(rv.nrows() == 1)
@@ -455,7 +455,7 @@ DROP FUNCTION transition_table_test_f();
 -- dealing with generated columns
 
 CREATE FUNCTION generated_test_func1() RETURNS trigger
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 AS $$
 TD['new']['j'] = 5  # not allowed
 return 'MODIFY'
diff --git a/src/pl/plpython/sql/plpython_types.sql b/src/pl/plpython/sql/plpython_types.sql
index 0d207d9c015..40f4f79d99f 100644
--- a/src/pl/plpython/sql/plpython_types.sql
+++ b/src/pl/plpython/sql/plpython_types.sql
@@ -9,7 +9,7 @@
 CREATE FUNCTION test_type_conversion_bool(x bool) RETURNS bool AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_conversion_bool(true);
 SELECT * FROM test_type_conversion_bool(false);
@@ -35,7 +35,7 @@ elif n == 5:
    ret = [0]
 plpy.info(ret, not not ret)
 return ret
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_conversion_bool_other(0);
 SELECT * FROM test_type_conversion_bool_other(1);
@@ -48,7 +48,7 @@ SELECT * FROM test_type_conversion_bool_other(5);
 CREATE FUNCTION test_type_conversion_char(x char) RETURNS char AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_conversion_char('a');
 SELECT * FROM test_type_conversion_char(null);
@@ -57,7 +57,7 @@ SELECT * FROM test_type_conversion_char(null);
 CREATE FUNCTION test_type_conversion_int2(x int2) RETURNS int2 AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_conversion_int2(100::int2);
 SELECT * FROM test_type_conversion_int2(-100::int2);
@@ -67,7 +67,7 @@ SELECT * FROM test_type_conversion_int2(null);
 CREATE FUNCTION test_type_conversion_int4(x int4) RETURNS int4 AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_conversion_int4(100);
 SELECT * FROM test_type_conversion_int4(-100);
@@ -77,7 +77,7 @@ SELECT * FROM test_type_conversion_int4(null);
 CREATE FUNCTION test_type_conversion_int8(x int8) RETURNS int8 AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_conversion_int8(100);
 SELECT * FROM test_type_conversion_int8(-100);
@@ -90,7 +90,7 @@ CREATE FUNCTION test_type_conversion_numeric(x numeric) RETURNS numeric AS $$
 # between decimal and cdecimal
 plpy.info(str(x), x.__class__.__name__)
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_conversion_numeric(100);
 SELECT * FROM test_type_conversion_numeric(-100);
@@ -105,7 +105,7 @@ SELECT * FROM test_type_conversion_numeric(null);
 CREATE FUNCTION test_type_conversion_float4(x float4) RETURNS float4 AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_conversion_float4(100);
 SELECT * FROM test_type_conversion_float4(-100);
@@ -116,7 +116,7 @@ SELECT * FROM test_type_conversion_float4(null);
 CREATE FUNCTION test_type_conversion_float8(x float8) RETURNS float8 AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_conversion_float8(100);
 SELECT * FROM test_type_conversion_float8(-100);
@@ -128,7 +128,7 @@ SELECT * FROM test_type_conversion_float8(100100100.654321);
 CREATE FUNCTION test_type_conversion_oid(x oid) RETURNS oid AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_conversion_oid(100);
 SELECT * FROM test_type_conversion_oid(2147483649);
@@ -138,7 +138,7 @@ SELECT * FROM test_type_conversion_oid(null);
 CREATE FUNCTION test_type_conversion_text(x text) RETURNS text AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_conversion_text('hello world');
 SELECT * FROM test_type_conversion_text(null);
@@ -147,7 +147,7 @@ SELECT * FROM test_type_conversion_text(null);
 CREATE FUNCTION test_type_conversion_bytea(x bytea) RETURNS bytea AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_conversion_bytea('hello world');
 SELECT * FROM test_type_conversion_bytea(E'null\\000byte');
@@ -157,7 +157,7 @@ SELECT * FROM test_type_conversion_bytea(null);
 CREATE FUNCTION test_type_marshal() RETURNS bytea AS $$
 import marshal
 return marshal.dumps('hello world')
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE FUNCTION test_type_unmarshal(x bytea) RETURNS text AS $$
 import marshal
@@ -165,7 +165,7 @@ try:
     return marshal.loads(x)
 except ValueError as e:
     return 'FAILED: ' + str(e)
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT test_type_unmarshal(x) FROM test_type_marshal() x;
 
@@ -178,7 +178,7 @@ CREATE DOMAIN booltrue AS bool CHECK (VALUE IS TRUE OR VALUE IS NULL);
 
 CREATE FUNCTION test_type_conversion_booltrue(x booltrue, y bool) RETURNS booltrue AS $$
 return y
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_conversion_booltrue(true, true);
 SELECT * FROM test_type_conversion_booltrue(false, true);
@@ -190,7 +190,7 @@ CREATE DOMAIN uint2 AS int2 CHECK (VALUE >= 0);
 CREATE FUNCTION test_type_conversion_uint2(x uint2, y int) RETURNS uint2 AS $$
 plpy.info(x, type(x))
 return y
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_conversion_uint2(100::uint2, 50);
 SELECT * FROM test_type_conversion_uint2(100::uint2, -50);
@@ -201,7 +201,7 @@ CREATE DOMAIN nnint AS int CHECK (VALUE IS NOT NULL);
 
 CREATE FUNCTION test_type_conversion_nnint(x nnint, y int) RETURNS nnint AS $$
 return y
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_conversion_nnint(10, 20);
 SELECT * FROM test_type_conversion_nnint(null, 20);
@@ -213,7 +213,7 @@ CREATE DOMAIN bytea10 AS bytea CHECK (octet_length(VALUE) = 10 AND VALUE IS NOT
 CREATE FUNCTION test_type_conversion_bytea10(x bytea10, y bytea) RETURNS bytea10 AS $$
 plpy.info(x, type(x))
 return y
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_conversion_bytea10('hello wold', 'hello wold');
 SELECT * FROM test_type_conversion_bytea10('hello world', 'hello wold');
@@ -229,7 +229,7 @@ SELECT * FROM test_type_conversion_bytea10('hello word', null);
 CREATE FUNCTION test_type_conversion_array_int4(x int4[]) RETURNS int4[] AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_conversion_array_int4(ARRAY[0, 100]);
 SELECT * FROM test_type_conversion_array_int4(ARRAY[0,-100,55]);
@@ -243,14 +243,14 @@ SELECT * FROM test_type_conversion_array_int4('[2:4]={1,2,3}');
 CREATE FUNCTION test_type_conversion_array_int8(x int8[]) RETURNS int8[] AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_conversion_array_int8(ARRAY[[[1,2,NULL],[NULL,5,6]],[[NULL,8,9],[10,11,12]]]::int8[]);
 
 CREATE FUNCTION test_type_conversion_array_date(x date[]) RETURNS date[] AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_conversion_array_date(ARRAY[[['2016-09-21','2016-09-22',NULL],[NULL,'2016-10-21','2016-10-22']],
             [[NULL,'2016-11-21','2016-10-21'],['2015-09-21','2015-09-22','2014-09-21']]]::date[]);
@@ -258,7 +258,7 @@ SELECT * FROM test_type_conversion_array_date(ARRAY[[['2016-09-21','2016-09-22',
 CREATE FUNCTION test_type_conversion_array_timestamp(x timestamp[]) RETURNS timestamp[] AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_conversion_array_timestamp(ARRAY[[['2016-09-21 15:34:24.078792-04','2016-10-22 11:34:24.078795-04',NULL],
             [NULL,'2016-10-21 11:34:25.078792-04','2016-10-21 11:34:24.098792-04']],
@@ -270,7 +270,7 @@ CREATE OR REPLACE FUNCTION pyreturnmultidemint4(h int4, i int4, j int4, k int4 )
 m = [[[[x for x in range(h)] for y in range(i)] for z in range(j)] for w in range(k)]
 plpy.info(m, type(m))
 return m
-$BODY$ LANGUAGE plpythonu;
+$BODY$ LANGUAGE plpython3u;
 
 select pyreturnmultidemint4(8,5,3,2);
 
@@ -278,7 +278,7 @@ CREATE OR REPLACE FUNCTION pyreturnmultidemint8(h int4, i int4, j int4, k int4 )
 m = [[[[x for x in range(h)] for y in range(i)] for z in range(j)] for w in range(k)]
 plpy.info(m, type(m))
 return m
-$BODY$ LANGUAGE plpythonu;
+$BODY$ LANGUAGE plpython3u;
 
 select pyreturnmultidemint8(5,5,3,2);
 
@@ -286,7 +286,7 @@ CREATE OR REPLACE FUNCTION pyreturnmultidemfloat4(h int4, i int4, j int4, k int4
 m = [[[[x for x in range(h)] for y in range(i)] for z in range(j)] for w in range(k)]
 plpy.info(m, type(m))
 return m
-$BODY$ LANGUAGE plpythonu;
+$BODY$ LANGUAGE plpython3u;
 
 select pyreturnmultidemfloat4(6,5,3,2);
 
@@ -294,14 +294,14 @@ CREATE OR REPLACE FUNCTION pyreturnmultidemfloat8(h int4, i int4, j int4, k int4
 m = [[[[x for x in range(h)] for y in range(i)] for z in range(j)] for w in range(k)]
 plpy.info(m, type(m))
 return m
-$BODY$ LANGUAGE plpythonu;
+$BODY$ LANGUAGE plpython3u;
 
 select pyreturnmultidemfloat8(7,5,3,2);
 
 CREATE FUNCTION test_type_conversion_array_text(x text[]) RETURNS text[] AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_conversion_array_text(ARRAY['foo', 'bar']);
 SELECT * FROM test_type_conversion_array_text(ARRAY[['foo', 'bar'],['foo2', 'bar2']]);
@@ -310,59 +310,59 @@ SELECT * FROM test_type_conversion_array_text(ARRAY[['foo', 'bar'],['foo2', 'bar
 CREATE FUNCTION test_type_conversion_array_bytea(x bytea[]) RETURNS bytea[] AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_conversion_array_bytea(ARRAY[E'\\xdeadbeef'::bytea, NULL]);
 
 
 CREATE FUNCTION test_type_conversion_array_mixed1() RETURNS text[] AS $$
 return [123, 'abc']
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_conversion_array_mixed1();
 
 
 CREATE FUNCTION test_type_conversion_array_mixed2() RETURNS int[] AS $$
 return [123, 'abc']
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_conversion_array_mixed2();
 
 CREATE FUNCTION test_type_conversion_mdarray_malformed() RETURNS int[] AS $$
 return [[1,2,3],[4,5]]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_conversion_mdarray_malformed();
 
 CREATE FUNCTION test_type_conversion_mdarray_toodeep() RETURNS int[] AS $$
 return [[[[[[[1]]]]]]]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_conversion_mdarray_toodeep();
 
 
 CREATE FUNCTION test_type_conversion_array_record() RETURNS type_record[] AS $$
 return [{'first': 'one', 'second': 42}, {'first': 'two', 'second': 11}]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_conversion_array_record();
 
 
 CREATE FUNCTION test_type_conversion_array_string() RETURNS text[] AS $$
 return 'abc'
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_conversion_array_string();
 
 CREATE FUNCTION test_type_conversion_array_tuple() RETURNS text[] AS $$
 return ('abc', 'def')
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_conversion_array_tuple();
 
 CREATE FUNCTION test_type_conversion_array_error() RETURNS int[] AS $$
 return 5
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_conversion_array_error();
 
@@ -376,14 +376,14 @@ CREATE DOMAIN ordered_pair_domain AS integer[] CHECK (array_length(VALUE,1)=2 AN
 CREATE FUNCTION test_type_conversion_array_domain(x ordered_pair_domain) RETURNS ordered_pair_domain AS $$
 plpy.info(x, type(x))
 return x
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT * FROM test_type_conversion_array_domain(ARRAY[0, 100]::ordered_pair_domain);
 SELECT * FROM test_type_conversion_array_domain(NULL::ordered_pair_domain);
 
 CREATE FUNCTION test_type_conversion_array_domain_check_violation() RETURNS ordered_pair_domain AS $$
 return [2,1]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 SELECT * FROM test_type_conversion_array_domain_check_violation();
 
 
@@ -394,13 +394,13 @@ SELECT * FROM test_type_conversion_array_domain_check_violation();
 CREATE FUNCTION test_read_uint2_array(x uint2[]) RETURNS uint2 AS $$
 plpy.info(x, type(x))
 return x[0]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 select test_read_uint2_array(array[1::uint2]);
 
 CREATE FUNCTION test_build_uint2_array(x int2) RETURNS uint2[] AS $$
 return [x, x]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 select test_build_uint2_array(1::int2);
 select test_build_uint2_array(-1::int2);  -- fail
@@ -413,7 +413,7 @@ select test_build_uint2_array(-1::int2);  -- fail
 CREATE FUNCTION test_type_conversion_domain_array(x integer[])
   RETURNS ordered_pair_domain[] AS $$
 return [x, x]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 select test_type_conversion_domain_array(array[2,4]);
 select test_type_conversion_domain_array(array[4,2]);  -- fail
@@ -422,7 +422,7 @@ CREATE FUNCTION test_type_conversion_domain_array2(x ordered_pair_domain)
   RETURNS integer AS $$
 plpy.info(x, type(x))
 return x[1]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 select test_type_conversion_domain_array2(array[2,4]);
 select test_type_conversion_domain_array2(array[4,2]);  -- fail
@@ -431,7 +431,7 @@ CREATE FUNCTION test_type_conversion_array_domain_array(x ordered_pair_domain[])
   RETURNS ordered_pair_domain AS $$
 plpy.info(x, type(x))
 return x[0]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 select test_type_conversion_array_domain_array(array[array[2,4]::ordered_pair_domain]);
 
@@ -450,7 +450,7 @@ INSERT INTO employee VALUES ('John', 100, 10), ('Mary', 200, 10);
 
 CREATE OR REPLACE FUNCTION test_composite_table_input(e employee) RETURNS integer AS $$
 return e['basesalary'] + e['bonus']
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT name, test_composite_table_input(employee.*) FROM employee;
 
@@ -470,7 +470,7 @@ CREATE TYPE named_pair AS (
 
 CREATE OR REPLACE FUNCTION test_composite_type_input(p named_pair) RETURNS integer AS $$
 return sum(p.values())
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT test_composite_type_input(row(1, 2));
 
@@ -487,7 +487,7 @@ CREATE TYPE nnint_container AS (f1 int, f2 nnint);
 
 CREATE FUNCTION nnint_test(x int, y int) RETURNS nnint_container AS $$
 return {'f1': x, 'f2': y}
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT nnint_test(null, 3);
 SELECT nnint_test(3, null);  -- fail
@@ -501,21 +501,21 @@ CREATE DOMAIN ordered_named_pair AS named_pair_2 CHECK((VALUE).i <= (VALUE).j);
 
 CREATE FUNCTION read_ordered_named_pair(p ordered_named_pair) RETURNS integer AS $$
 return p['i'] + p['j']
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT read_ordered_named_pair(row(1, 2));
 SELECT read_ordered_named_pair(row(2, 1));  -- fail
 
 CREATE FUNCTION build_ordered_named_pair(i int, j int) RETURNS ordered_named_pair AS $$
 return {'i': i, 'j': j}
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT build_ordered_named_pair(1,2);
 SELECT build_ordered_named_pair(2,1);  -- fail
 
 CREATE FUNCTION build_ordered_named_pairs(i int, j int) RETURNS ordered_named_pair[] AS $$
 return [{'i': i, 'j': j}, {'i': i, 'j': j+1}]
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 SELECT build_ordered_named_pairs(1,2);
 SELECT build_ordered_named_pairs(2,1);  -- fail
@@ -526,7 +526,7 @@ SELECT build_ordered_named_pairs(2,1);  -- fail
 --
 
 CREATE OR REPLACE FUNCTION test_prep_bool_input() RETURNS int
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 AS $$
 plan = plpy.prepare("SELECT CASE WHEN $1 THEN 1 ELSE 0 END AS val", ['boolean'])
 rv = plpy.execute(plan, ['fa'], 5) # 'fa' is true in Python
@@ -537,7 +537,7 @@ SELECT test_prep_bool_input(); -- 1
 
 
 CREATE OR REPLACE FUNCTION test_prep_bool_output() RETURNS bool
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 AS $$
 plan = plpy.prepare("SELECT $1 = 1 AS val", ['int'])
 rv = plpy.execute(plan, [0], 5)
@@ -549,7 +549,7 @@ SELECT test_prep_bool_output(); -- false
 
 
 CREATE OR REPLACE FUNCTION test_prep_bytea_input(bb bytea) RETURNS int
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 AS $$
 plan = plpy.prepare("SELECT octet_length($1) AS val", ['bytea'])
 rv = plpy.execute(plan, [bb], 5)
@@ -560,7 +560,7 @@ SELECT test_prep_bytea_input(E'a\\000b'); -- 3 (embedded null formerly truncated
 
 
 CREATE OR REPLACE FUNCTION test_prep_bytea_output() RETURNS bytea
-LANGUAGE plpythonu
+LANGUAGE plpython3u
 AS $$
 plan = plpy.prepare("SELECT decode('aa00bb', 'hex') AS val")
 rv = plpy.execute(plan, [], 5)
diff --git a/src/pl/plpython/sql/plpython_unicode.sql b/src/pl/plpython/sql/plpython_unicode.sql
index a11e5eeaa21..14f7b4e0053 100644
--- a/src/pl/plpython/sql/plpython_unicode.sql
+++ b/src/pl/plpython/sql/plpython_unicode.sql
@@ -14,28 +14,28 @@ CREATE TABLE unicode_test (
 );
 
 CREATE FUNCTION unicode_return() RETURNS text AS E'
-return u"\\xA0"
-' LANGUAGE plpythonu;
+return "\\xA0"
+' LANGUAGE plpython3u;
 
 CREATE FUNCTION unicode_trigger() RETURNS trigger AS E'
-TD["new"]["testvalue"] = u"\\xA0"
+TD["new"]["testvalue"] = "\\xA0"
 return "MODIFY"
-' LANGUAGE plpythonu;
+' LANGUAGE plpython3u;
 
 CREATE TRIGGER unicode_test_bi BEFORE INSERT ON unicode_test
   FOR EACH ROW EXECUTE PROCEDURE unicode_trigger();
 
 CREATE FUNCTION unicode_plan1() RETURNS text AS E'
 plan = plpy.prepare("SELECT $1 AS testvalue", ["text"])
-rv = plpy.execute(plan, [u"\\xA0"], 1)
+rv = plpy.execute(plan, ["\\xA0"], 1)
 return rv[0]["testvalue"]
-' LANGUAGE plpythonu;
+' LANGUAGE plpython3u;
 
 CREATE FUNCTION unicode_plan2() RETURNS text AS E'
-plan = plpy.prepare("SELECT $1 || $2 AS testvalue", ["text", u"text"])
+plan = plpy.prepare("SELECT $1 || $2 AS testvalue", ["text", "text"])
 rv = plpy.execute(plan, ["foo", "bar"], 1)
 return rv[0]["testvalue"]
-' LANGUAGE plpythonu;
+' LANGUAGE plpython3u;
 
 
 SELECT unicode_return();
diff --git a/src/pl/plpython/sql/plpython_void.sql b/src/pl/plpython/sql/plpython_void.sql
index 77d7f59e4c7..5a1a6711fb0 100644
--- a/src/pl/plpython/sql/plpython_void.sql
+++ b/src/pl/plpython/sql/plpython_void.sql
@@ -4,16 +4,16 @@
 
 CREATE FUNCTION test_void_func1() RETURNS void AS $$
 x = 10
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 -- illegal: can't return non-None value in void-returning func
 CREATE FUNCTION test_void_func2() RETURNS void AS $$
 return 10
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 CREATE FUNCTION test_return_none() RETURNS int AS $$
 None
-$$ LANGUAGE plpythonu;
+$$ LANGUAGE plpython3u;
 
 
 -- Tests for functions returning void
-- 
2.23.0.385.gbc12974a89

  [text/x-diff] v5-0004-meson-prereq-output-and-depencency-tracking-work.patch (8.7K, ../../20211031232448.wsma7sggfwyxppjc@alap3.anarazel.de/5-v5-0004-meson-prereq-output-and-depencency-tracking-work.patch)
  download | inline diff:
From 604a2932f353f0bd12f7ed45ed7fe7124e8aad7f Mon Sep 17 00:00:00 2001
From: Andres Freund <andres@anarazel.de>
Date: Mon, 8 Mar 2021 13:47:39 -0800
Subject: [PATCH v5 04/16] meson: prereq: output and depencency tracking work.

---
 src/backend/utils/misc/Makefile  |  5 ++++-
 src/backend/utils/misc/guc.c     |  2 +-
 src/bin/initdb/initdb.c          |  5 +++--
 src/bin/psql/Makefile            |  4 ++--
 src/bin/psql/create_help.pl      | 16 ++++++++++++----
 src/tools/msvc/MSBuildProject.pm |  9 +++++++--
 src/tools/msvc/Mkvcbuild.pm      |  3 +++
 src/tools/msvc/Solution.pm       |  2 +-
 src/tools/msvc/pgflex.pl         |  4 ++--
 9 files changed, 35 insertions(+), 15 deletions(-)

diff --git a/src/backend/utils/misc/Makefile b/src/backend/utils/misc/Makefile
index 1d5327cf644..14861fd96b2 100644
--- a/src/backend/utils/misc/Makefile
+++ b/src/backend/utils/misc/Makefile
@@ -37,8 +37,11 @@ endif
 
 include $(top_srcdir)/src/backend/common.mk
 
+guc-file.c.h: guc-file.l
+	flex -o $@ $<
+
 # guc-file is compiled as part of guc
-guc.o: guc-file.c
+guc.o: guc-file.c.h
 
 # Note: guc-file.c is not deleted by 'make clean',
 # since we want to ship it in distribution tarballs.
diff --git a/src/backend/utils/misc/guc.c b/src/backend/utils/misc/guc.c
index e91d5a3cfda..a0ac8cf0341 100644
--- a/src/backend/utils/misc/guc.c
+++ b/src/backend/utils/misc/guc.c
@@ -12572,4 +12572,4 @@ check_default_with_oids(bool *newval, void **extra, GucSource source)
 	return true;
 }
 
-#include "guc-file.c"
+#include "guc-file.c.h"
diff --git a/src/bin/initdb/initdb.c b/src/bin/initdb/initdb.c
index 1ed4808d53f..9067a06e58a 100644
--- a/src/bin/initdb/initdb.c
+++ b/src/bin/initdb/initdb.c
@@ -1368,8 +1368,9 @@ bootstrap_template1(void)
 
 	if (strcmp(headerline, *bki_lines) != 0)
 	{
-		pg_log_error("input file \"%s\" does not belong to PostgreSQL %s",
-					 bki_file, PG_VERSION);
+		pg_log_error("input file \"%s\" does not belong to PostgreSQL %s (expect %s, is %s)",
+					 bki_file, PG_VERSION,
+					 headerline, *bki_lines);
 		fprintf(stderr,
 				_("Check your installation or specify the correct path "
 				  "using the option -L.\n"));
diff --git a/src/bin/psql/Makefile b/src/bin/psql/Makefile
index d00881163c0..3851da1c8ef 100644
--- a/src/bin/psql/Makefile
+++ b/src/bin/psql/Makefile
@@ -56,7 +56,7 @@ sql_help.c: sql_help.h
 	touch $@
 
 sql_help.h: create_help.pl $(wildcard $(REFDOCDIR)/*.sgml)
-	$(PERL) $< $(REFDOCDIR) $*
+	$(PERL) $< $(REFDOCDIR) . $*
 
 psqlscanslash.c: FLEXFLAGS = -Cfe -p -p
 psqlscanslash.c: FLEX_NO_BACKUP=yes
@@ -81,7 +81,7 @@ clean distclean:
 # files removed here are supposed to be in the distribution tarball,
 # so do not clean them in the clean/distclean rules
 maintainer-clean: distclean
-	rm -f sql_help.h sql_help.c psqlscanslash.c
+	rm -f sql_help.h sql_help.c sql_help.dep psqlscanslash.c
 
 check:
 	$(prove_check)
diff --git a/src/bin/psql/create_help.pl b/src/bin/psql/create_help.pl
index 83324239740..40eb6ac2d3f 100644
--- a/src/bin/psql/create_help.pl
+++ b/src/bin/psql/create_help.pl
@@ -23,9 +23,12 @@ use strict;
 use warnings;
 
 my $docdir = $ARGV[0] or die "$0: missing required argument: docdir\n";
-my $hfile = $ARGV[1] . '.h'
+my $outdir = $ARGV[1] or die "$0: missing required argument: outdir\n";
+
+my $hfile = $ARGV[2] . '.h'
   or die "$0: missing required argument: output file\n";
-my $cfile = $ARGV[1] . '.c';
+my $cfile = $ARGV[2] . '.c';
+my $depfile = $ARGV[2] . '.dep';
 
 my $hfilebasename;
 if ($hfile =~ m!.*/([^/]+)$!)
@@ -43,10 +46,12 @@ $define =~ s/\W/_/g;
 
 opendir(DIR, $docdir)
   or die "$0: could not open documentation source dir '$docdir': $!\n";
-open(my $hfile_handle, '>', $hfile)
+open(my $hfile_handle, '>', $outdir . '/' . $hfile)
   or die "$0: could not open output file '$hfile': $!\n";
-open(my $cfile_handle, '>', $cfile)
+open(my $cfile_handle, '>', $outdir . '/' . $cfile)
   or die "$0: could not open output file '$cfile': $!\n";
+open(my $depfile_handle, '>', $outdir . '/' . $depfile)
+  or die "$0: could not open output file '$depfile': $!\n";
 
 print $hfile_handle "/*
  * *** Do not change this file by hand. It is automatically
@@ -98,6 +103,8 @@ foreach my $file (sort readdir DIR)
 	my ($cmdid, @cmdnames, $cmddesc, $cmdsynopsis);
 	$file =~ /\.sgml$/ or next;
 
+	print $depfile_handle "$cfile $hfile: $docdir/$file\n";
+
 	open(my $fh, '<', "$docdir/$file") or next;
 	my $filecontent = join('', <$fh>);
 	close $fh;
@@ -216,4 +223,5 @@ print $hfile_handle "
 
 close $cfile_handle;
 close $hfile_handle;
+close $depfile_handle;
 closedir DIR;
diff --git a/src/tools/msvc/MSBuildProject.pm b/src/tools/msvc/MSBuildProject.pm
index fdd22e89eb2..036e44fcb83 100644
--- a/src/tools/msvc/MSBuildProject.pm
+++ b/src/tools/msvc/MSBuildProject.pm
@@ -211,14 +211,19 @@ EOF
 			}
 			else    #if ($grammarFile =~ /\.l$/)
 			{
+				if ($outputFile eq 'src/backend/utils/misc/guc-file.c')
+				{
+					$outputFile = 'src/backend/utils/misc/guc-file.c.h';
+				}
+
 				print $f <<EOF;
     <CustomBuild Include="$grammarFile">
       <Message Condition="'\$(Configuration)|\$(Platform)'=='Debug|$self->{platform}'">Running flex on $grammarFile</Message>
-      <Command Condition="'\$(Configuration)|\$(Platform)'=='Debug|$self->{platform}'">perl "src\\tools\\msvc\\pgflex.pl" "$grammarFile"</Command>
+      <Command Condition="'\$(Configuration)|\$(Platform)'=='Debug|$self->{platform}'">perl "src\\tools\\msvc\\pgflex.pl" "$grammarFile" "$outputFile"</Command>
       <AdditionalInputs Condition="'\$(Configuration)|\$(Platform)'=='Debug|$self->{platform}'">%(AdditionalInputs)</AdditionalInputs>
       <Outputs Condition="'\$(Configuration)|\$(Platform)'=='Debug|$self->{platform}'">$outputFile;%(Outputs)</Outputs>
       <Message Condition="'\$(Configuration)|\$(Platform)'=='Release|$self->{platform}'">Running flex on $grammarFile</Message>
-      <Command Condition="'\$(Configuration)|\$(Platform)'=='Release|$self->{platform}'">perl "src\\tools\\msvc\\pgflex.pl" "$grammarFile"</Command>
+      <Command Condition="'\$(Configuration)|\$(Platform)'=='Release|$self->{platform}'">perl "src\\tools\\msvc\\pgflex.pl" "$grammarFile" "$outputFile"</Command>
       <AdditionalInputs Condition="'\$(Configuration)|\$(Platform)'=='Release|$self->{platform}'">%(AdditionalInputs)</AdditionalInputs>
       <Outputs Condition="'\$(Configuration)|\$(Platform)'=='Release|$self->{platform}'">$outputFile;%(Outputs)</Outputs>
     </CustomBuild>
diff --git a/src/tools/msvc/Mkvcbuild.pm b/src/tools/msvc/Mkvcbuild.pm
index 4362bd44fd1..b8e62c6d3f7 100644
--- a/src/tools/msvc/Mkvcbuild.pm
+++ b/src/tools/msvc/Mkvcbuild.pm
@@ -330,6 +330,7 @@ sub mkvcbuild
 	$pgregress_ecpg->AddFile('src/test/regress/pg_regress.c');
 	$pgregress_ecpg->AddIncludeDir('src/port');
 	$pgregress_ecpg->AddIncludeDir('src/test/regress');
+	$pgregress_ecpg->AddDefine('DLSUFFIX=".dll"');
 	$pgregress_ecpg->AddDefine('HOST_TUPLE="i686-pc-win32vc"');
 	$pgregress_ecpg->AddLibrary('ws2_32.lib');
 	$pgregress_ecpg->AddDirResourceFile('src/interfaces/ecpg/test');
@@ -345,6 +346,7 @@ sub mkvcbuild
 	$isolation_tester->AddIncludeDir('src/port');
 	$isolation_tester->AddIncludeDir('src/test/regress');
 	$isolation_tester->AddIncludeDir('src/interfaces/libpq');
+	$isolation_tester->AddDefine('DLSUFFIX=".dll"');
 	$isolation_tester->AddDefine('HOST_TUPLE="i686-pc-win32vc"');
 	$isolation_tester->AddLibrary('ws2_32.lib');
 	$isolation_tester->AddDirResourceFile('src/test/isolation');
@@ -356,6 +358,7 @@ sub mkvcbuild
 	$pgregress_isolation->AddFile('src/test/regress/pg_regress.c');
 	$pgregress_isolation->AddIncludeDir('src/port');
 	$pgregress_isolation->AddIncludeDir('src/test/regress');
+	$pgregress_isolation->AddDefine('DLSUFFIX=".dll"');
 	$pgregress_isolation->AddDefine('HOST_TUPLE="i686-pc-win32vc"');
 	$pgregress_isolation->AddLibrary('ws2_32.lib');
 	$pgregress_isolation->AddDirResourceFile('src/test/isolation');
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 43fd1be0888..dc78d3b65c3 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -689,7 +689,7 @@ sub GenerateFiles
 	{
 		print "Generating sql_help.h...\n";
 		chdir('src/bin/psql');
-		system("perl create_help.pl ../../../doc/src/sgml/ref sql_help");
+		system("perl create_help.pl ../../../doc/src/sgml/ref . sql_help");
 		chdir('../../..');
 	}
 
diff --git a/src/tools/msvc/pgflex.pl b/src/tools/msvc/pgflex.pl
index 0728b85d4de..19f26ff213f 100644
--- a/src/tools/msvc/pgflex.pl
+++ b/src/tools/msvc/pgflex.pl
@@ -29,6 +29,8 @@ unless ($verparts[0] == 2
 }
 
 my $input = shift;
+my $output = shift;
+
 if ($input !~ /\.l$/)
 {
 	print "Input must be a .l file\n";
@@ -40,8 +42,6 @@ elsif (!-e $input)
 	exit 1;
 }
 
-(my $output = $input) =~ s/\.l$/.c/;
-
 # get flex flags from make file
 my $makefile = dirname($input) . "/Makefile";
 my ($mf, $make);
-- 
2.23.0.385.gbc12974a89

  [text/x-diff] v5-0005-meson-prereq-move-snowball_create.sql-creation-in.patch (4.7K, ../../20211031232448.wsma7sggfwyxppjc@alap3.anarazel.de/6-v5-0005-meson-prereq-move-snowball_create.sql-creation-in.patch)
  download | inline diff:
From 931ff07e713d7869a16a23dcf770f5fd30c18df8 Mon Sep 17 00:00:00 2001
From: Andres Freund <andres@anarazel.de>
Date: Mon, 8 Mar 2021 14:59:22 -0800
Subject: [PATCH v5 05/16] meson: prereq: move snowball_create.sql creation
 into perl file.

FIXME: deduplicate with Install.pm
---
 src/backend/snowball/Makefile           |  27 +-----
 src/backend/snowball/snowball_create.pl | 110 ++++++++++++++++++++++++
 2 files changed, 113 insertions(+), 24 deletions(-)
 create mode 100644 src/backend/snowball/snowball_create.pl

diff --git a/src/backend/snowball/Makefile b/src/backend/snowball/Makefile
index 50b9199910c..259104f8eb3 100644
--- a/src/backend/snowball/Makefile
+++ b/src/backend/snowball/Makefile
@@ -119,29 +119,8 @@ all: all-shared-lib $(SQLSCRIPT)
 
 include $(top_srcdir)/src/Makefile.shlib
 
-$(SQLSCRIPT): Makefile snowball_func.sql.in snowball.sql.in
-	echo '-- Language-specific snowball dictionaries' > $@
-	cat $(srcdir)/snowball_func.sql.in >> $@
-	@set -e; \
-	set $(LANGUAGES) ; \
-	while [ "$$#" -gt 0 ] ; \
-	do \
-		lang=$$1; shift; \
-		nonascdictname=$$lang; \
-		ascdictname=$$1; shift; \
-		if [ -s $(srcdir)/stopwords/$${lang}.stop ] ; then \
-			stop=", StopWords=$${lang}" ; \
-		else \
-			stop=""; \
-		fi; \
-		cat $(srcdir)/snowball.sql.in | \
-			sed -e "s#_LANGNAME_#$$lang#g" | \
-			sed -e "s#_DICTNAME_#$${lang}_stem#g" | \
-			sed -e "s#_CFGNAME_#$$lang#g" | \
-			sed -e "s#_ASCDICTNAME_#$${ascdictname}_stem#g" | \
-			sed -e "s#_NONASCDICTNAME_#$${nonascdictname}_stem#g" | \
-			sed -e "s#_STOPWORDS_#$$stop#g" ; \
-	done >> $@
+$(SQLSCRIPT): snowball_create.pl Makefile snowball_func.sql.in snowball.sql.in
+	$(PERL) $< --input ${srcdir} --output .
 
 install: all installdirs install-lib
 	$(INSTALL_DATA) $(SQLSCRIPT) '$(DESTDIR)$(datadir)'
@@ -171,4 +150,4 @@ uninstall: uninstall-lib
 	done
 
 clean distclean maintainer-clean: clean-lib
-	rm -f $(OBJS) $(SQLSCRIPT)
+	rm -f $(OBJS) $(SQLSCRIPT) snowball_create.dep
diff --git a/src/backend/snowball/snowball_create.pl b/src/backend/snowball/snowball_create.pl
new file mode 100644
index 00000000000..d9d79f3668f
--- /dev/null
+++ b/src/backend/snowball/snowball_create.pl
@@ -0,0 +1,110 @@
+#!/usr/bin/perl
+
+use strict;
+use warnings;
+use Getopt::Long;
+
+my $output_path = '';
+my $makefile_path = '';
+my $input_path = '';
+
+GetOptions(
+	'output:s'   => \$output_path,
+	'input:s'    => \$input_path) || usage();
+
+# Make sure input_path ends in a slash if needed.
+if ($input_path ne '' && substr($input_path, -1) ne '/')
+{
+	$output_path .= '/';
+}
+
+# Make sure output_path ends in a slash if needed.
+if ($output_path ne '' && substr($output_path, -1) ne '/')
+{
+	$output_path .= '/';
+}
+
+GenerateTsearchFiles();
+
+sub usage
+{
+	die <<EOM;
+Usage: snowball_create.pl --input/-i <path> --input <path>
+    --output        Output directory (default '.')
+    --input         Input directory
+
+snowball_create.pl creates snowball.sql from snowball.sql.in
+EOM
+}
+
+sub GenerateTsearchFiles
+{
+	my $target = shift;
+	my $output_file = "$output_path/snowball_create.sql";
+
+	print "Generating tsearch script...";
+	my $F;
+	my $D;
+	my $tmpl = read_file("$input_path/snowball.sql.in");
+	my $mf   = read_file("$input_path/Makefile");
+
+	open($D, '>', "$output_path/snowball_create.dep")
+	  || die "Could not write snowball_create.dep";
+
+	print $D "$output_file: $input_path/Makefile\n";
+	print $D "$output_file: $input_path/snowball.sql.in\n";
+	print $D "$output_file: $input_path/snowball_func.sql.in\n";
+
+	$mf =~ s{\\\r?\n}{}g;
+	$mf =~ /^LANGUAGES\s*=\s*(.*)$/m
+	  || die "Could not find LANGUAGES line in snowball Makefile\n";
+	my @pieces = split /\s+/, $1;
+	open($F, '>', $output_file)
+	  || die "Could not write snowball_create.sql";
+
+	print $F "-- Language-specific snowball dictionaries\n";
+
+	print $F read_file("$input_path/snowball_func.sql.in");
+
+	while ($#pieces > 0)
+	{
+		my $lang    = shift @pieces || last;
+		my $asclang = shift @pieces || last;
+		my $txt     = $tmpl;
+		my $stop    = '';
+		my $stopword_path = "$input_path/stopwords/$lang.stop";
+
+		if (-s "$stopword_path")
+		{
+			$stop = ", StopWords=$lang";
+
+			print $D "$output_file: $stopword_path\n";
+		}
+
+		$txt =~ s#_LANGNAME_#${lang}#gs;
+		$txt =~ s#_DICTNAME_#${lang}_stem#gs;
+		$txt =~ s#_CFGNAME_#${lang}#gs;
+		$txt =~ s#_ASCDICTNAME_#${asclang}_stem#gs;
+		$txt =~ s#_NONASCDICTNAME_#${lang}_stem#gs;
+		$txt =~ s#_STOPWORDS_#$stop#gs;
+		print $F $txt;
+		print ".";
+	}
+	close($F);
+	close($D);
+	print "\n";
+	return;
+}
+
+
+sub read_file
+{
+	my $filename = shift;
+	my $F;
+	local $/ = undef;
+	open($F, '<', $filename) || die "Could not open file $filename\n";
+	my $txt = <$F>;
+	close($F);
+
+	return $txt;
+}
-- 
2.23.0.385.gbc12974a89

  [text/x-diff] v5-0006-meson-prereq-add-output-path-arg-in-generate-lwlo.patch (1.6K, ../../20211031232448.wsma7sggfwyxppjc@alap3.anarazel.de/7-v5-0006-meson-prereq-add-output-path-arg-in-generate-lwlo.patch)
  download | inline diff:
From 5e712fa7763cb28a4ab8f763cab6d3746c24f857 Mon Sep 17 00:00:00 2001
From: Andres Freund <andres@anarazel.de>
Date: Wed, 10 Mar 2021 01:43:07 -0800
Subject: [PATCH v5 06/16] meson: prereq: add output path arg in
 generate-lwlocknames.pl

---
 src/backend/storage/lmgr/generate-lwlocknames.pl | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/src/backend/storage/lmgr/generate-lwlocknames.pl b/src/backend/storage/lmgr/generate-lwlocknames.pl
index 8a44946594d..315156b29f1 100644
--- a/src/backend/storage/lmgr/generate-lwlocknames.pl
+++ b/src/backend/storage/lmgr/generate-lwlocknames.pl
@@ -5,15 +5,21 @@
 
 use strict;
 use warnings;
+use Getopt::Long;
+
+my $output_path = '.';
 
 my $lastlockidx = -1;
 my $continue    = "\n";
 
+GetOptions(
+	'output:s'       => \$output_path);
+
 open my $lwlocknames, '<', $ARGV[0] or die;
 
 # Include PID in suffix in case parallel make runs this multiple times.
-my $htmp = "lwlocknames.h.tmp$$";
-my $ctmp = "lwlocknames.c.tmp$$";
+my $htmp = "$output_path/lwlocknames.h.tmp$$";
+my $ctmp = "$output_path/lwlocknames.c.tmp$$";
 open my $h, '>', $htmp or die "Could not open $htmp: $!";
 open my $c, '>', $ctmp or die "Could not open $ctmp: $!";
 
@@ -65,7 +71,7 @@ printf $h "#define NUM_INDIVIDUAL_LWLOCKS		%s\n", $lastlockidx + 1;
 close $h;
 close $c;
 
-rename($htmp, 'lwlocknames.h') || die "rename: $htmp: $!";
-rename($ctmp, 'lwlocknames.c') || die "rename: $ctmp: $!";
+rename($htmp, "$output_path/lwlocknames.h") || die "rename: $htmp to $output_path/lwlocknames.h: $!";
+rename($ctmp, "$output_path/lwlocknames.c") || die "rename: $ctmp: $!";
 
 close $lwlocknames;
-- 
2.23.0.385.gbc12974a89

  [text/x-diff] v5-0007-meson-prereq-add-src-tools-gen_versioning_script..patch (1.9K, ../../20211031232448.wsma7sggfwyxppjc@alap3.anarazel.de/8-v5-0007-meson-prereq-add-src-tools-gen_versioning_script..patch)
  download | inline diff:
From 0fd47642701e4941c6a2bb3eca29b9509b999399 Mon Sep 17 00:00:00 2001
From: Andres Freund <andres@anarazel.de>
Date: Wed, 10 Mar 2021 15:11:13 -0800
Subject: [PATCH v5 07/16] meson: prereq: add
 src/tools/gen_versioning_script.pl.

Currently the logic is all in src/Makefile.shlib. This adds a sketch
of a generation script that can be used from meson.
---
 src/tools/gen_versioning_script.pl | 58 ++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 src/tools/gen_versioning_script.pl

diff --git a/src/tools/gen_versioning_script.pl b/src/tools/gen_versioning_script.pl
new file mode 100644
index 00000000000..862b5e14aad
--- /dev/null
+++ b/src/tools/gen_versioning_script.pl
@@ -0,0 +1,58 @@
+use strict;
+use warnings;
+
+my $format = $ARGV[0] or die "$0: missing required argument: format\n";
+my $input = $ARGV[1] or die "$0: missing required argument: input\n";
+my $output = $ARGV[2] or die "$0: missing required argument: output\n";
+
+#FIXME: handle format argument, so we can reuse the one script for several platforms
+if (not ($format eq 'gnu' or $format eq 'darwin'))
+{
+	die "$0: $format is not yet handled (only gnu is)\n";
+}
+
+open(my $input_handle, '<', $input)
+  or die "$0: could not open input file '$input': $!\n";
+
+open(my $output_handle, '>', $output)
+  or die "$0: could not open output file '$output': $!\n";
+
+
+if ($format eq 'gnu')
+{
+	print $output_handle "{
+  global:
+";
+}
+
+while (<$input_handle>)
+{
+	if (/^#/)
+	{
+		# don't do anything with a comment
+	}
+	elsif (/^([^\s]+)\s+([^\s]+)/)
+	{
+		if ($format eq 'gnu')
+		{
+			print $output_handle "    $1;\n";
+		}
+		elsif ($format eq 'darwin')
+		{
+			print $output_handle "    _$1\n";
+		}
+	}
+	else
+	{
+		die "$0: unexpected line $_\n";
+	}
+}
+
+if ($format eq 'gnu')
+{
+	print $output_handle "  local: *;
+};
+";
+}
+
+exit(0);
-- 
2.23.0.385.gbc12974a89

  [text/x-diff] v5-0008-meson-prereq-generate-errcodes.pl-accept-output-f.patch (2.6K, ../../20211031232448.wsma7sggfwyxppjc@alap3.anarazel.de/9-v5-0008-meson-prereq-generate-errcodes.pl-accept-output-f.patch)
  download | inline diff:
From 8e6ee0e31e25238ff8ea50938a20f1775001c88d Mon Sep 17 00:00:00 2001
From: Andres Freund <andres@anarazel.de>
Date: Mon, 27 Sep 2021 00:14:09 -0700
Subject: [PATCH v5 08/16] meson: prereq: generate-errcodes.pl: accept output
 file

---
 src/backend/utils/Makefile             |  2 +-
 src/backend/utils/generate-errcodes.pl | 13 ++++++++-----
 src/tools/msvc/Solution.pm             |  2 +-
 3 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/src/backend/utils/Makefile b/src/backend/utils/Makefile
index ef8df254826..469caf0d704 100644
--- a/src/backend/utils/Makefile
+++ b/src/backend/utils/Makefile
@@ -52,7 +52,7 @@ fmgr-stamp: Gen_fmgrtab.pl $(catalogdir)/Catalog.pm $(top_srcdir)/src/include/ca
 	touch $@
 
 errcodes.h: $(top_srcdir)/src/backend/utils/errcodes.txt generate-errcodes.pl
-	$(PERL) $(srcdir)/generate-errcodes.pl $< > $@
+	$(PERL) $(srcdir)/generate-errcodes.pl $< $@
 
 ifneq ($(enable_dtrace), yes)
 probes.h: Gen_dummy_probes.sed
diff --git a/src/backend/utils/generate-errcodes.pl b/src/backend/utils/generate-errcodes.pl
index c5cdd388138..57ec2a5ca21 100644
--- a/src/backend/utils/generate-errcodes.pl
+++ b/src/backend/utils/generate-errcodes.pl
@@ -6,11 +6,13 @@
 use strict;
 use warnings;
 
-print
+open my $errcodes, '<', $ARGV[0] or die;
+open my $out, '>', $ARGV[1] or die;
+
+print $out
   "/* autogenerated from src/backend/utils/errcodes.txt, do not edit */\n";
-print "/* there is deliberately not an #ifndef ERRCODES_H here */\n";
+print $out "/* there is deliberately not an #ifndef ERRCODES_H here */\n";
 
-open my $errcodes, '<', $ARGV[0] or die;
 
 while (<$errcodes>)
 {
@@ -25,7 +27,7 @@ while (<$errcodes>)
 	{
 		my $header = $1;
 		$header =~ s/^\s+//;
-		print "\n/* $header */\n";
+		print $out "\n/* $header */\n";
 		next;
 	}
 
@@ -40,7 +42,8 @@ while (<$errcodes>)
 	# And quote them
 	$sqlstate =~ s/([^,])/'$1'/g;
 
-	print "#define $errcode_macro MAKE_SQLSTATE($sqlstate)\n";
+	print $out "#define $errcode_macro MAKE_SQLSTATE($sqlstate)\n";
 }
 
 close $errcodes;
+close $out;
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index dc78d3b65c3..40cd6020421 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -659,7 +659,7 @@ sub GenerateFiles
 	{
 		print "Generating errcodes.h...\n";
 		system(
-			'perl src/backend/utils/generate-errcodes.pl src/backend/utils/errcodes.txt > src/backend/utils/errcodes.h'
+			'perl src/backend/utils/generate-errcodes.pl src/backend/utils/errcodes.txt src/backend/utils/errcodes.h'
 		);
 		copyFile('src/backend/utils/errcodes.h',
 			'src/include/utils/errcodes.h');
-- 
2.23.0.385.gbc12974a89

  [text/x-diff] v5-0009-meson-prereq-remove-unhelpful-chattiness-in-snowb.patch (1.0K, ../../20211031232448.wsma7sggfwyxppjc@alap3.anarazel.de/10-v5-0009-meson-prereq-remove-unhelpful-chattiness-in-snowb.patch)
  download | inline diff:
From b47c7af10cea83c78e8f3c75bf083c42d6adfd55 Mon Sep 17 00:00:00 2001
From: Andres Freund <andres@anarazel.de>
Date: Mon, 27 Sep 2021 15:41:24 -0700
Subject: [PATCH v5 09/16] meson: prereq: remove unhelpful chattiness in
 snowball_create.pl.

---
 src/backend/snowball/snowball_create.pl | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/src/backend/snowball/snowball_create.pl b/src/backend/snowball/snowball_create.pl
index d9d79f3668f..285cf4f5d90 100644
--- a/src/backend/snowball/snowball_create.pl
+++ b/src/backend/snowball/snowball_create.pl
@@ -42,7 +42,6 @@ sub GenerateTsearchFiles
 	my $target = shift;
 	my $output_file = "$output_path/snowball_create.sql";
 
-	print "Generating tsearch script...";
 	my $F;
 	my $D;
 	my $tmpl = read_file("$input_path/snowball.sql.in");
@@ -88,11 +87,9 @@ sub GenerateTsearchFiles
 		$txt =~ s#_NONASCDICTNAME_#${lang}_stem#gs;
 		$txt =~ s#_STOPWORDS_#$stop#gs;
 		print $F $txt;
-		print ".";
 	}
 	close($F);
 	close($D);
-	print "\n";
 	return;
 }
 
-- 
2.23.0.385.gbc12974a89

  [text/x-diff] v5-0010-meson-prereq-Can-we-get-away-with-not-export-all-.patch (18.3K, ../../20211031232448.wsma7sggfwyxppjc@alap3.anarazel.de/11-v5-0010-meson-prereq-Can-we-get-away-with-not-export-all-.patch)
  download | inline diff:
From bfcc214e472040810bb59110280e734b2c5f1f2b Mon Sep 17 00:00:00 2001
From: Andres Freund <andres@anarazel.de>
Date: Wed, 29 Sep 2021 00:29:10 -0700
Subject: [PATCH v5 10/16] meson: prereq: Can we get away with not
 export-all'ing libraries?

---
 configure                                  | 49 ++++++++++++++++++++++
 configure.ac                               | 10 +++++
 contrib/hstore/hstore.h                    | 16 +++----
 contrib/ltree/ltree.h                      | 40 +++++++++---------
 src/Makefile.global.in                     |  1 +
 src/Makefile.shlib                         | 12 ++++++
 src/include/c.h                            | 15 +++++--
 src/include/fmgr.h                         |  6 ++-
 src/include/jit/jit.h                      |  2 +-
 src/include/pg_config.h.in                 |  3 ++
 src/include/replication/output_plugin.h    |  2 +
 src/pl/plpython/plpy_elog.h                |  8 ++--
 src/pl/plpython/plpy_typeio.h              | 18 ++++----
 src/pl/plpython/plpy_util.h                |  8 ++--
 src/test/modules/test_shm_mq/test_shm_mq.h |  2 +-
 src/test/modules/worker_spi/worker_spi.c   |  2 +-
 src/tools/msvc/Solution.pm                 |  1 +
 17 files changed, 142 insertions(+), 53 deletions(-)

diff --git a/configure b/configure
index 1b5fd12a432..fd15801b34c 100755
--- a/configure
+++ b/configure
@@ -735,6 +735,7 @@ CPP
 CFLAGS_SL
 BITCODE_CXXFLAGS
 BITCODE_CFLAGS
+CFLAGS_SL_MOD
 CFLAGS_VECTORIZE
 CFLAGS_UNROLL_LOOPS
 PERMIT_DECLARATION_AFTER_STATEMENT
@@ -6421,6 +6422,54 @@ fi
   if test -n "$NOT_THE_CFLAGS"; then
     CFLAGS="$CFLAGS -Wno-stringop-truncation"
   fi
+
+  # If the compiler knows how to hide symbols, use that. But only for shared libraries,
+  # for postgres itself that'd be too verbose for now.
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ${CC} supports -fvisibility=hidden, for CFLAGS_SL_MOD" >&5
+$as_echo_n "checking whether ${CC} supports -fvisibility=hidden, for CFLAGS_SL_MOD... " >&6; }
+if ${pgac_cv_prog_CC_cflags__fvisibility_hidden+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  pgac_save_CFLAGS=$CFLAGS
+pgac_save_CC=$CC
+CC=${CC}
+CFLAGS="${CFLAGS_SL_MOD} -fvisibility=hidden"
+ac_save_c_werror_flag=$ac_c_werror_flag
+ac_c_werror_flag=yes
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+int
+main ()
+{
+
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+  pgac_cv_prog_CC_cflags__fvisibility_hidden=yes
+else
+  pgac_cv_prog_CC_cflags__fvisibility_hidden=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_c_werror_flag=$ac_save_c_werror_flag
+CFLAGS="$pgac_save_CFLAGS"
+CC="$pgac_save_CC"
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $pgac_cv_prog_CC_cflags__fvisibility_hidden" >&5
+$as_echo "$pgac_cv_prog_CC_cflags__fvisibility_hidden" >&6; }
+if test x"$pgac_cv_prog_CC_cflags__fvisibility_hidden" = x"yes"; then
+  CFLAGS_SL_MOD="${CFLAGS_SL_MOD} -fvisibility=hidden"
+fi
+
+
+  if test "$pgac_cv_prog_CC_cflags__fvisibility_hidden" = yes; then
+
+$as_echo "#define HAVE_VISIBILITY_ATTRIBUTE 1" >>confdefs.h
+
+  fi
+
 elif test "$ICC" = yes; then
   # Intel's compiler has a bug/misoptimization in checking for
   # division by NAN (NaN == 0), -mp1 fixes it, so add it to the CFLAGS.
diff --git a/configure.ac b/configure.ac
index 44ee3ebe2f1..973f83db52c 100644
--- a/configure.ac
+++ b/configure.ac
@@ -541,6 +541,15 @@ if test "$GCC" = yes -a "$ICC" = no; then
   if test -n "$NOT_THE_CFLAGS"; then
     CFLAGS="$CFLAGS -Wno-stringop-truncation"
   fi
+
+  # If the compiler knows how to hide symbols, use that. But only for shared libraries,
+  # for postgres itself that'd be too verbose for now.
+  PGAC_PROG_CC_VAR_OPT(CFLAGS_SL_MOD, [-fvisibility=hidden])
+  if test "$pgac_cv_prog_CC_cflags__fvisibility_hidden" = yes; then
+     AC_DEFINE(HAVE_VISIBILITY_ATTRIBUTE, 1,
+               [Define to 1 if your compiler knows the visibility("hidden") attribute.])
+  fi
+
 elif test "$ICC" = yes; then
   # Intel's compiler has a bug/misoptimization in checking for
   # division by NAN (NaN == 0), -mp1 fixes it, so add it to the CFLAGS.
@@ -564,6 +573,7 @@ fi
 
 AC_SUBST(CFLAGS_UNROLL_LOOPS)
 AC_SUBST(CFLAGS_VECTORIZE)
+AC_SUBST(CFLAGS_SL_MOD)
 
 # Determine flags used to emit bitcode for JIT inlining. Need to test
 # for behaviour changing compiler flags, to keep compatibility with
diff --git a/contrib/hstore/hstore.h b/contrib/hstore/hstore.h
index bf4a565ed9b..625134c9f69 100644
--- a/contrib/hstore/hstore.h
+++ b/contrib/hstore/hstore.h
@@ -147,7 +147,7 @@ typedef struct
 	} while (0)
 
 /* DatumGetHStoreP includes support for reading old-format hstore values */
-extern HStore *hstoreUpgrade(Datum orig);
+extern PGDLLEXPORT HStore *hstoreUpgrade(Datum orig);
 
 #define DatumGetHStoreP(d) hstoreUpgrade(d)
 
@@ -168,14 +168,14 @@ typedef struct
 	bool		needfree;		/* need to pfree the value? */
 } Pairs;
 
-extern int	hstoreUniquePairs(Pairs *a, int32 l, int32 *buflen);
-extern HStore *hstorePairs(Pairs *pairs, int32 pcount, int32 buflen);
+extern PGDLLEXPORT int	hstoreUniquePairs(Pairs *a, int32 l, int32 *buflen);
+extern PGDLLEXPORT HStore *hstorePairs(Pairs *pairs, int32 pcount, int32 buflen);
 
-extern size_t hstoreCheckKeyLen(size_t len);
-extern size_t hstoreCheckValLen(size_t len);
+extern PGDLLEXPORT size_t hstoreCheckKeyLen(size_t len);
+extern PGDLLEXPORT size_t hstoreCheckValLen(size_t len);
 
-extern int	hstoreFindKey(HStore *hs, int *lowbound, char *key, int keylen);
-extern Pairs *hstoreArrayToPairs(ArrayType *a, int *npairs);
+extern PGDLLEXPORT int	hstoreFindKey(HStore *hs, int *lowbound, char *key, int keylen);
+extern PGDLLEXPORT Pairs *hstoreArrayToPairs(ArrayType *a, int *npairs);
 
 #define HStoreContainsStrategyNumber	7
 #define HStoreExistsStrategyNumber		9
@@ -194,7 +194,7 @@ extern Pairs *hstoreArrayToPairs(ArrayType *a, int *npairs);
 #if HSTORE_POLLUTE_NAMESPACE
 #define HSTORE_POLLUTE(newname_,oldname_) \
 	PG_FUNCTION_INFO_V1(oldname_);		  \
-	Datum newname_(PG_FUNCTION_ARGS);	  \
+	extern PGDLLEXPORT Datum newname_(PG_FUNCTION_ARGS);	  \
 	Datum oldname_(PG_FUNCTION_ARGS) { return newname_(fcinfo); } \
 	extern int no_such_variable
 #else
diff --git a/contrib/ltree/ltree.h b/contrib/ltree/ltree.h
index 5b4be5e680a..d8bcdedbdbe 100644
--- a/contrib/ltree/ltree.h
+++ b/contrib/ltree/ltree.h
@@ -176,30 +176,30 @@ typedef struct
 
 
 /* use in array iterator */
-Datum		ltree_isparent(PG_FUNCTION_ARGS);
-Datum		ltree_risparent(PG_FUNCTION_ARGS);
-Datum		ltq_regex(PG_FUNCTION_ARGS);
-Datum		ltq_rregex(PG_FUNCTION_ARGS);
-Datum		lt_q_regex(PG_FUNCTION_ARGS);
-Datum		lt_q_rregex(PG_FUNCTION_ARGS);
-Datum		ltxtq_exec(PG_FUNCTION_ARGS);
-Datum		ltxtq_rexec(PG_FUNCTION_ARGS);
-Datum		_ltq_regex(PG_FUNCTION_ARGS);
-Datum		_ltq_rregex(PG_FUNCTION_ARGS);
-Datum		_lt_q_regex(PG_FUNCTION_ARGS);
-Datum		_lt_q_rregex(PG_FUNCTION_ARGS);
-Datum		_ltxtq_exec(PG_FUNCTION_ARGS);
-Datum		_ltxtq_rexec(PG_FUNCTION_ARGS);
-Datum		_ltree_isparent(PG_FUNCTION_ARGS);
-Datum		_ltree_risparent(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum		ltree_isparent(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum		ltree_risparent(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum		ltq_regex(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum		ltq_rregex(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum		lt_q_regex(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum		lt_q_rregex(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum		ltxtq_exec(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum		ltxtq_rexec(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum		_ltq_regex(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum		_ltq_rregex(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum		_lt_q_regex(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum		_lt_q_rregex(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum		_ltxtq_exec(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum		_ltxtq_rexec(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum		_ltree_isparent(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum		_ltree_risparent(PG_FUNCTION_ARGS);
 
 /* Concatenation functions */
-Datum		ltree_addltree(PG_FUNCTION_ARGS);
-Datum		ltree_addtext(PG_FUNCTION_ARGS);
-Datum		ltree_textadd(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum		ltree_addltree(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum		ltree_addtext(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum		ltree_textadd(PG_FUNCTION_ARGS);
 
 /* Util function */
-Datum		ltree_in(PG_FUNCTION_ARGS);
+PGDLLEXPORT Datum		ltree_in(PG_FUNCTION_ARGS);
 
 bool		ltree_execute(ITEM *curitem, void *checkval,
 						  bool calcnot, bool (*chkcond) (void *checkval, ITEM *val));
diff --git a/src/Makefile.global.in b/src/Makefile.global.in
index 533c12fef95..c7c701dcb93 100644
--- a/src/Makefile.global.in
+++ b/src/Makefile.global.in
@@ -259,6 +259,7 @@ SUN_STUDIO_CC = @SUN_STUDIO_CC@
 CXX = @CXX@
 CFLAGS = @CFLAGS@
 CFLAGS_SL = @CFLAGS_SL@
+CFLAGS_SL_MOD = @CFLAGS_SL_MOD@
 CFLAGS_UNROLL_LOOPS = @CFLAGS_UNROLL_LOOPS@
 CFLAGS_VECTORIZE = @CFLAGS_VECTORIZE@
 CFLAGS_SSE42 = @CFLAGS_SSE42@
diff --git a/src/Makefile.shlib b/src/Makefile.shlib
index 551023c6fb0..d36782aa942 100644
--- a/src/Makefile.shlib
+++ b/src/Makefile.shlib
@@ -253,6 +253,18 @@ ifeq ($(PORTNAME), win32)
 endif
 
 
+# If the shared library doesn't have an export file, mark all symbols not
+# explicitly exported using PGDLLEXPORT as hidden. We can't pass these flags
+# when building a library with explicit exports, as the symbols would be
+# hidden before the linker script / exported symbol list takes effect.
+#
+# XXX: This probably isn't the best location, but not clear instead?
+ifeq ($(SHLIB_EXPORTS),)
+  LDFLAGS += $(CFLAGS_SL_MOD)
+  override CFLAGS += $(CFLAGS_SL_MOD)
+  override CXXFLAGS += $(CFLAGS_SL_MOD)
+endif
+
 
 ##
 ## BUILD
diff --git a/src/include/c.h b/src/include/c.h
index c8ede082739..9b539a2657b 100644
--- a/src/include/c.h
+++ b/src/include/c.h
@@ -1312,11 +1312,18 @@ extern long long strtoll(const char *str, char **endptr, int base);
 extern unsigned long long strtoull(const char *str, char **endptr, int base);
 #endif
 
-/* no special DLL markers on most ports */
-#ifndef PGDLLIMPORT
-#define PGDLLIMPORT
+/*
+ * If the platform knows __attribute__((visibility("*"))), i.e. gcc like
+ * compilers, we use that.
+ */
+#if !defined(PGDLLIMPORT) && defined(HAVE_VISIBILITY_ATTRIBUTE)
+#define PGDLLIMPORT __attribute__((visibility("default")))
+#define PGDLLEXPORT __attribute__((visibility("default")))
 #endif
-#ifndef PGDLLEXPORT
+
+/* No special DLL markers on the remaining ports. */
+#if !defined(PGDLLIMPORT)
+#define PGDLLIMPORT
 #define PGDLLEXPORT
 #endif
 
diff --git a/src/include/fmgr.h b/src/include/fmgr.h
index ab7b85c86e1..679443cca19 100644
--- a/src/include/fmgr.h
+++ b/src/include/fmgr.h
@@ -413,7 +413,7 @@ typedef const Pg_finfo_record *(*PGFInfoFunction) (void);
  *	info function, since authors shouldn't need to be explicitly aware of it.
  */
 #define PG_FUNCTION_INFO_V1(funcname) \
-extern Datum funcname(PG_FUNCTION_ARGS); \
+extern PGDLLEXPORT Datum funcname(PG_FUNCTION_ARGS); \
 extern PGDLLEXPORT const Pg_finfo_record * CppConcat(pg_finfo_,funcname)(void); \
 const Pg_finfo_record * \
 CppConcat(pg_finfo_,funcname) (void) \
@@ -424,6 +424,10 @@ CppConcat(pg_finfo_,funcname) (void) \
 extern int no_such_variable
 
 
+extern PGDLLEXPORT void _PG_init(void);
+extern PGDLLEXPORT void _PG_fini(void);
+
+
 /*-------------------------------------------------------------------------
  *		Support for verifying backend compatibility of loaded modules
  *
diff --git a/src/include/jit/jit.h b/src/include/jit/jit.h
index b634df30b98..74617ad1b64 100644
--- a/src/include/jit/jit.h
+++ b/src/include/jit/jit.h
@@ -63,7 +63,7 @@ typedef struct JitContext
 
 typedef struct JitProviderCallbacks JitProviderCallbacks;
 
-extern void _PG_jit_provider_init(JitProviderCallbacks *cb);
+extern PGDLLEXPORT void _PG_jit_provider_init(JitProviderCallbacks *cb);
 typedef void (*JitProviderInit) (JitProviderCallbacks *cb);
 typedef void (*JitProviderResetAfterErrorCB) (void);
 typedef void (*JitProviderReleaseContextCB) (JitContext *context);
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 15ffdd895aa..e3ab1c7752f 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -710,6 +710,9 @@
 /* Define to 1 if you have the <uuid/uuid.h> header file. */
 #undef HAVE_UUID_UUID_H
 
+/* Define to 1 if your compiler knows the visibility("hidden") attribute. */
+#undef HAVE_VISIBILITY_ATTRIBUTE
+
 /* Define to 1 if you have the `wcstombs_l' function. */
 #undef HAVE_WCSTOMBS_L
 
diff --git a/src/include/replication/output_plugin.h b/src/include/replication/output_plugin.h
index 810495ed0e4..a087f14dadd 100644
--- a/src/include/replication/output_plugin.h
+++ b/src/include/replication/output_plugin.h
@@ -35,6 +35,8 @@ typedef struct OutputPluginOptions
  */
 typedef void (*LogicalOutputPluginInit) (struct OutputPluginCallbacks *cb);
 
+extern PGDLLEXPORT void _PG_output_plugin_init(struct OutputPluginCallbacks *cb);
+
 /*
  * Callback that gets called in a user-defined plugin. ctx->private_data can
  * be set to some private data.
diff --git a/src/pl/plpython/plpy_elog.h b/src/pl/plpython/plpy_elog.h
index e02ef4ffe9f..aeade82ce10 100644
--- a/src/pl/plpython/plpy_elog.h
+++ b/src/pl/plpython/plpy_elog.h
@@ -34,13 +34,13 @@ extern PyObject *PLy_exc_spi_error;
 	} while(0)
 #endif							/* HAVE__BUILTIN_CONSTANT_P */
 
-extern void PLy_elog_impl(int elevel, const char *fmt,...) pg_attribute_printf(2, 3);
+extern PGDLLEXPORT void PLy_elog_impl(int elevel, const char *fmt,...) pg_attribute_printf(2, 3);
 
-extern void PLy_exception_set(PyObject *exc, const char *fmt,...) pg_attribute_printf(2, 3);
+extern PGDLLEXPORT void PLy_exception_set(PyObject *exc, const char *fmt,...) pg_attribute_printf(2, 3);
 
-extern void PLy_exception_set_plural(PyObject *exc, const char *fmt_singular, const char *fmt_plural,
+extern PGDLLEXPORT void PLy_exception_set_plural(PyObject *exc, const char *fmt_singular, const char *fmt_plural,
 									 unsigned long n,...) pg_attribute_printf(2, 5) pg_attribute_printf(3, 5);
 
-extern void PLy_exception_set_with_details(PyObject *excclass, ErrorData *edata);
+extern PGDLLEXPORT void PLy_exception_set_with_details(PyObject *excclass, ErrorData *edata);
 
 #endif							/* PLPY_ELOG_H */
diff --git a/src/pl/plpython/plpy_typeio.h b/src/pl/plpython/plpy_typeio.h
index d11e6ae1b89..87e3b2c464e 100644
--- a/src/pl/plpython/plpy_typeio.h
+++ b/src/pl/plpython/plpy_typeio.h
@@ -147,29 +147,29 @@ struct PLyObToDatum
 };
 
 
-extern PyObject *PLy_input_convert(PLyDatumToOb *arg, Datum val);
-extern Datum PLy_output_convert(PLyObToDatum *arg, PyObject *val,
+extern PGDLLEXPORT PyObject *PLy_input_convert(PLyDatumToOb *arg, Datum val);
+extern PGDLLEXPORT Datum PLy_output_convert(PLyObToDatum *arg, PyObject *val,
 								bool *isnull);
 
-extern PyObject *PLy_input_from_tuple(PLyDatumToOb *arg, HeapTuple tuple,
+extern PGDLLEXPORT PyObject *PLy_input_from_tuple(PLyDatumToOb *arg, HeapTuple tuple,
 									  TupleDesc desc, bool include_generated);
 
-extern void PLy_input_setup_func(PLyDatumToOb *arg, MemoryContext arg_mcxt,
+extern PGDLLEXPORT void PLy_input_setup_func(PLyDatumToOb *arg, MemoryContext arg_mcxt,
 								 Oid typeOid, int32 typmod,
 								 struct PLyProcedure *proc);
-extern void PLy_output_setup_func(PLyObToDatum *arg, MemoryContext arg_mcxt,
+extern PGDLLEXPORT void PLy_output_setup_func(PLyObToDatum *arg, MemoryContext arg_mcxt,
 								  Oid typeOid, int32 typmod,
 								  struct PLyProcedure *proc);
 
-extern void PLy_input_setup_tuple(PLyDatumToOb *arg, TupleDesc desc,
+extern PGDLLEXPORT void PLy_input_setup_tuple(PLyDatumToOb *arg, TupleDesc desc,
 								  struct PLyProcedure *proc);
-extern void PLy_output_setup_tuple(PLyObToDatum *arg, TupleDesc desc,
+extern PGDLLEXPORT void PLy_output_setup_tuple(PLyObToDatum *arg, TupleDesc desc,
 								   struct PLyProcedure *proc);
 
-extern void PLy_output_setup_record(PLyObToDatum *arg, TupleDesc desc,
+extern PGDLLEXPORT void PLy_output_setup_record(PLyObToDatum *arg, TupleDesc desc,
 									struct PLyProcedure *proc);
 
 /* conversion from Python objects to C strings --- exported for transforms */
-extern char *PLyObject_AsString(PyObject *plrv);
+extern PGDLLEXPORT char *PLyObject_AsString(PyObject *plrv);
 
 #endif							/* PLPY_TYPEIO_H */
diff --git a/src/pl/plpython/plpy_util.h b/src/pl/plpython/plpy_util.h
index 7c6577925ea..6f491b0f95b 100644
--- a/src/pl/plpython/plpy_util.h
+++ b/src/pl/plpython/plpy_util.h
@@ -8,10 +8,10 @@
 
 #include "plpython.h"
 
-extern PyObject *PLyUnicode_Bytes(PyObject *unicode);
-extern char *PLyUnicode_AsString(PyObject *unicode);
+extern PGDLLEXPORT PyObject *PLyUnicode_Bytes(PyObject *unicode);
+extern PGDLLEXPORT char *PLyUnicode_AsString(PyObject *unicode);
 
-extern PyObject *PLyUnicode_FromString(const char *s);
-extern PyObject *PLyUnicode_FromStringAndSize(const char *s, Py_ssize_t size);
+extern PGDLLEXPORT PyObject *PLyUnicode_FromString(const char *s);
+extern PGDLLEXPORT PyObject *PLyUnicode_FromStringAndSize(const char *s, Py_ssize_t size);
 
 #endif							/* PLPY_UTIL_H */
diff --git a/src/test/modules/test_shm_mq/test_shm_mq.h b/src/test/modules/test_shm_mq/test_shm_mq.h
index a6661218347..a7a36714a48 100644
--- a/src/test/modules/test_shm_mq/test_shm_mq.h
+++ b/src/test/modules/test_shm_mq/test_shm_mq.h
@@ -40,6 +40,6 @@ extern void test_shm_mq_setup(int64 queue_size, int32 nworkers,
 							  shm_mq_handle **input);
 
 /* Main entrypoint for a worker. */
-extern void test_shm_mq_main(Datum) pg_attribute_noreturn();
+extern PGDLLEXPORT void test_shm_mq_main(Datum) pg_attribute_noreturn();
 
 #endif
diff --git a/src/test/modules/worker_spi/worker_spi.c b/src/test/modules/worker_spi/worker_spi.c
index 0b6246676b6..e267bc3cffa 100644
--- a/src/test/modules/worker_spi/worker_spi.c
+++ b/src/test/modules/worker_spi/worker_spi.c
@@ -47,7 +47,7 @@ PG_MODULE_MAGIC;
 PG_FUNCTION_INFO_V1(worker_spi_launch);
 
 void		_PG_init(void);
-void		worker_spi_main(Datum) pg_attribute_noreturn();
+PGDLLEXPORT void worker_spi_main(Datum) pg_attribute_noreturn();
 
 /* GUC variables */
 static int	worker_spi_naptime = 10;
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 40cd6020421..85b877b80b2 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -432,6 +432,7 @@ sub GenerateFiles
 		HAVE_WINLDAP_H                           => undef,
 		HAVE_WCSTOMBS_L                          => 1,
 		HAVE_WCTYPE_H                            => 1,
+		HAVE_VISIBILITY_ATTRIBUTE                => undef,
 		HAVE_WRITEV                              => undef,
 		HAVE_X509_GET_SIGNATURE_NID              => 1,
 		HAVE_X86_64_POPCNTQ                      => undef,
-- 
2.23.0.385.gbc12974a89

  [text/x-diff] v5-0011-meson-prereq-Handle-DLSUFFIX-in-msvc-builds-simil.patch (2.0K, ../../20211031232448.wsma7sggfwyxppjc@alap3.anarazel.de/12-v5-0011-meson-prereq-Handle-DLSUFFIX-in-msvc-builds-simil.patch)
  download | inline diff:
From c1571bfd8f3eb811ad0f8916d189f94d3f98ec80 Mon Sep 17 00:00:00 2001
From: Andres Freund <andres@anarazel.de>
Date: Thu, 30 Sep 2021 10:20:24 -0700
Subject: [PATCH v5 11/16] meson: prereq: Handle DLSUFFIX in msvc builds
 similar to other build envs.

---
 src/include/port/win32_port.h | 3 ---
 src/tools/msvc/Mkvcbuild.pm   | 3 +++
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/include/port/win32_port.h b/src/include/port/win32_port.h
index c1c4831595a..72b2d2b5a01 100644
--- a/src/include/port/win32_port.h
+++ b/src/include/port/win32_port.h
@@ -529,9 +529,6 @@ typedef unsigned short mode_t;
 #define W_OK 2
 #define R_OK 4
 
-/* Pulled from Makefile.port in MinGW */
-#define DLSUFFIX ".dll"
-
 #endif							/* _MSC_VER */
 
 #if (defined(_MSC_VER) && (_MSC_VER < 1900)) || \
diff --git a/src/tools/msvc/Mkvcbuild.pm b/src/tools/msvc/Mkvcbuild.pm
index b8e62c6d3f7..47b5c43357a 100644
--- a/src/tools/msvc/Mkvcbuild.pm
+++ b/src/tools/msvc/Mkvcbuild.pm
@@ -195,6 +195,7 @@ sub mkvcbuild
 		'syncrep_gram.y');
 	$postgres->AddFiles('src/backend/utils/adt', 'jsonpath_scan.l',
 		'jsonpath_gram.y');
+	$postgres->AddDefine('DLSUFFIX=".dll"');
 	$postgres->AddDefine('BUILDING_DLL');
 	$postgres->AddLibrary('secur32.lib');
 	$postgres->AddLibrary('ws2_32.lib');
@@ -298,6 +299,7 @@ sub mkvcbuild
 	my $libecpg = $solution->AddProject('libecpg', 'dll', 'interfaces',
 		'src/interfaces/ecpg/ecpglib');
 	$libecpg->AddDefine('FRONTEND');
+	$libecpg->AddDefine('DLSUFFIX=".dll"');
 	$libecpg->AddIncludeDir('src/interfaces/ecpg/include');
 	$libecpg->AddIncludeDir('src/interfaces/libpq');
 	$libecpg->AddIncludeDir('src/port');
@@ -845,6 +847,7 @@ sub mkvcbuild
 	$pgregress->AddFile('src/test/regress/pg_regress.c');
 	$pgregress->AddFile('src/test/regress/pg_regress_main.c');
 	$pgregress->AddIncludeDir('src/port');
+	$pgregress->AddDefine('DLSUFFIX=".dll"');
 	$pgregress->AddDefine('HOST_TUPLE="i686-pc-win32vc"');
 	$pgregress->AddLibrary('ws2_32.lib');
 	$pgregress->AddDirResourceFile('src/test/regress');
-- 
2.23.0.385.gbc12974a89

  [text/x-diff] v5-0012-prereq-make-unicode-targets-work-in-vpath-builds.patch (4.0K, ../../20211031232448.wsma7sggfwyxppjc@alap3.anarazel.de/13-v5-0012-prereq-make-unicode-targets-work-in-vpath-builds.patch)
  download | inline diff:
From 386bab39b951a71336c57611f8ff10977995ec9f Mon Sep 17 00:00:00 2001
From: Andres Freund <andres@anarazel.de>
Date: Wed, 27 Oct 2021 09:59:33 -0700
Subject: [PATCH v5 12/16] prereq: make unicode targets work in vpath builds.

---
 contrib/unaccent/Makefile                         |  4 ++--
 src/common/unicode/Makefile                       |  8 ++++----
 src/common/unicode/generate-unicode_norm_table.pl | 11 ++++++-----
 3 files changed, 12 insertions(+), 11 deletions(-)

diff --git a/contrib/unaccent/Makefile b/contrib/unaccent/Makefile
index b8307d1601e..d6c466e07ad 100644
--- a/contrib/unaccent/Makefile
+++ b/contrib/unaccent/Makefile
@@ -27,12 +27,12 @@ include $(top_builddir)/src/Makefile.global
 include $(top_srcdir)/contrib/contrib-global.mk
 endif
 
-update-unicode: unaccent.rules
+update-unicode: $(srcdir)/unaccent.rules
 
 # Allow running this even without --with-python
 PYTHON ?= python
 
-unaccent.rules: generate_unaccent_rules.py ../../src/common/unicode/UnicodeData.txt Latin-ASCII.xml
+$(srcdir)/unaccent.rules: generate_unaccent_rules.py ../../src/common/unicode/UnicodeData.txt Latin-ASCII.xml
 	$(PYTHON) $< --unicode-data-file $(word 2,$^) --latin-ascii-file $(word 3,$^) >$@
 
 # Only download it once; dependencies must match src/common/unicode/
diff --git a/src/common/unicode/Makefile b/src/common/unicode/Makefile
index a3683dd86b9..40a5f7bc0fe 100644
--- a/src/common/unicode/Makefile
+++ b/src/common/unicode/Makefile
@@ -12,14 +12,14 @@ subdir = src/common/unicode
 top_builddir = ../../..
 include $(top_builddir)/src/Makefile.global
 
-override CPPFLAGS := -DFRONTEND $(CPPFLAGS)
+override CPPFLAGS := -DFRONTEND -I$(abs_top_builddir)/src/common/unicode $(CPPFLAGS)
 LIBS += $(PTHREAD_LIBS)
 
 # By default, do nothing.
 all:
 
 update-unicode: unicode_norm_table.h unicode_combining_table.h unicode_east_asian_fw_table.h unicode_normprops_table.h unicode_norm_hashfunc.h
-	mv $^ ../../../src/include/common/
+	mv $^ $(top_srcdir)/src/include/common/
 	$(MAKE) normalization-check
 
 # These files are part of the Unicode Character Database. Download
@@ -33,7 +33,7 @@ UnicodeData.txt EastAsianWidth.txt DerivedNormalizationProps.txt CompositionExcl
 unicode_norm_hashfunc.h: unicode_norm_table.h
 
 unicode_norm_table.h: generate-unicode_norm_table.pl UnicodeData.txt CompositionExclusions.txt
-	$(PERL) generate-unicode_norm_table.pl
+	$(PERL) $< $(CURDIR)
 
 unicode_combining_table.h: generate-unicode_combining_table.pl UnicodeData.txt
 	$(PERL) $^ >$@
@@ -58,7 +58,7 @@ submake-common:
 	$(MAKE) -C .. all
 
 norm_test_table.h: generate-norm_test_table.pl NormalizationTest.txt
-	perl generate-norm_test_table.pl NormalizationTest.txt $@
+	perl $^ $@
 
 .PHONY: normalization-check
 
diff --git a/src/common/unicode/generate-unicode_norm_table.pl b/src/common/unicode/generate-unicode_norm_table.pl
index 114ab30d3f1..4d2c603ff27 100644
--- a/src/common/unicode/generate-unicode_norm_table.pl
+++ b/src/common/unicode/generate-unicode_norm_table.pl
@@ -15,15 +15,16 @@ use FindBin;
 use lib "$FindBin::RealBin/../../tools/";
 use PerfectHash;
 
-my $output_table_file = "unicode_norm_table.h";
-my $output_func_file  = "unicode_norm_hashfunc.h";
+my $directory = $ARGV[0];
+my $output_table_file = "$directory/unicode_norm_table.h";
+my $output_func_file  = "$directory/unicode_norm_hashfunc.h";
 
 my $FH;
 
 # Read list of codes that should be excluded from re-composition.
 my @composition_exclusion_codes = ();
-open($FH, '<', "CompositionExclusions.txt")
-  or die "Could not open CompositionExclusions.txt: $!.";
+open($FH, '<', "$directory/CompositionExclusions.txt")
+  or die "Could not open $directory/CompositionExclusions.txt: $!.";
 while (my $line = <$FH>)
 {
 	if ($line =~ /^([[:xdigit:]]+)/)
@@ -38,7 +39,7 @@ close $FH;
 # and character decomposition mapping
 my @characters     = ();
 my %character_hash = ();
-open($FH, '<', "UnicodeData.txt")
+open($FH, '<', "$directory/UnicodeData.txt")
   or die "Could not open UnicodeData.txt: $!.";
 while (my $line = <$FH>)
 {
-- 
2.23.0.385.gbc12974a89

  [text/x-diff] v5-0013-wip-don-t-run-ldap-tests-on-windows.patch (741B, ../../20211031232448.wsma7sggfwyxppjc@alap3.anarazel.de/14-v5-0013-wip-don-t-run-ldap-tests-on-windows.patch)
  download | inline diff:
From 418ac644ce3c51c73c50166f126392610c5c2d0e Mon Sep 17 00:00:00 2001
From: Andres Freund <andres@anarazel.de>
Date: Sun, 10 Oct 2021 13:49:12 -0700
Subject: [PATCH v5 13/16] wip: don't run ldap tests on windows.

---
 src/test/ldap/t/001_auth.pl | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/test/ldap/t/001_auth.pl b/src/test/ldap/t/001_auth.pl
index 5a9a0098327..8850fc1cb1b 100644
--- a/src/test/ldap/t/001_auth.pl
+++ b/src/test/ldap/t/001_auth.pl
@@ -6,6 +6,13 @@ use warnings;
 use PostgreSQL::Test::Utils;
 use PostgreSQL::Test::Cluster;
 use Test::More;
+use Config;
+
+if ($Config{osname} eq 'MSWin32')
+{
+	plan skip_all => 'ldap tests ';
+	exit;
+}
 
 if ($ENV{with_ldap} eq 'yes')
 {
-- 
2.23.0.385.gbc12974a89

  [text/x-diff] v5-0014-wip-split-TESTDIR-into-two.patch (5.7K, ../../20211031232448.wsma7sggfwyxppjc@alap3.anarazel.de/15-v5-0014-wip-split-TESTDIR-into-two.patch)
  download | inline diff:
From fb2933a9bba05d79ce920f9f161a732c615c4897 Mon Sep 17 00:00:00 2001
From: Andres Freund <andres@anarazel.de>
Date: Wed, 27 Oct 2021 10:10:37 -0700
Subject: [PATCH v5 14/16] wip: split TESTDIR into two.

---
 src/Makefile.global.in                 |  9 ++++---
 src/bin/psql/t/010_tab_completion.pl   | 34 +++++++++++++-------------
 src/test/perl/PostgreSQL/Test/Utils.pm |  2 +-
 src/tools/msvc/vcregress.pl            |  2 ++
 4 files changed, 26 insertions(+), 21 deletions(-)

diff --git a/src/Makefile.global.in b/src/Makefile.global.in
index c7c701dcb93..014029c9a9c 100644
--- a/src/Makefile.global.in
+++ b/src/Makefile.global.in
@@ -450,7 +450,8 @@ define prove_installcheck
 rm -rf '$(CURDIR)'/tmp_check
 $(MKDIR_P) '$(CURDIR)'/tmp_check
 cd $(srcdir) && \
-   TESTDIR='$(CURDIR)' PATH="$(bindir):$(CURDIR):$$PATH" \
+   TESTOUTDIR='$(CURDIR)/tmp_check' TESTDIR='$(CURDIR)' \
+   PATH="$(bindir):$(CURDIR):$$PATH" \
    PGPORT='6$(DEF_PGPORT)' top_builddir='$(CURDIR)/$(top_builddir)' \
    PG_REGRESS='$(CURDIR)/$(top_builddir)/src/test/regress/pg_regress' \
    $(PROVE) $(PG_PROVE_FLAGS) $(PROVE_FLAGS) $(if $(PROVE_TESTS),$(PROVE_TESTS),t/*.pl)
@@ -460,8 +461,9 @@ define prove_installcheck
 rm -rf '$(CURDIR)'/tmp_check
 $(MKDIR_P) '$(CURDIR)'/tmp_check
 cd $(srcdir) && \
-   TESTDIR='$(CURDIR)' PATH="$(bindir):$(CURDIR):$$PATH" \
-   PGPORT='6$(DEF_PGPORT)' top_builddir='$(top_builddir)' \
+   TESTOUTDIR='$(CURDIR)/tmp_check' TESTDIR='$(CURDIR)' \
+   PATH="$(bindir):$(CURDIR):$$PATH" PGPORT='6$(DEF_PGPORT)' \
+   top_builddir='$(top_builddir)' \
    PG_REGRESS='$(top_builddir)/src/test/regress/pg_regress' \
    $(PROVE) $(PG_PROVE_FLAGS) $(PROVE_FLAGS) $(if $(PROVE_TESTS),$(PROVE_TESTS),t/*.pl)
 endef
@@ -471,6 +473,7 @@ define prove_check
 rm -rf '$(CURDIR)'/tmp_check
 $(MKDIR_P) '$(CURDIR)'/tmp_check
 cd $(srcdir) && \
+   TESTOUTDIR='$(CURDIR)/tmp_check' \
    TESTDIR='$(CURDIR)' $(with_temp_install) PGPORT='6$(DEF_PGPORT)' \
    PG_REGRESS='$(CURDIR)/$(top_builddir)/src/test/regress/pg_regress' \
    $(PROVE) $(PG_PROVE_FLAGS) $(PROVE_FLAGS) $(if $(PROVE_TESTS),$(PROVE_TESTS),t/*.pl)
diff --git a/src/bin/psql/t/010_tab_completion.pl b/src/bin/psql/t/010_tab_completion.pl
index 55b318517ea..33f6a6c12fd 100644
--- a/src/bin/psql/t/010_tab_completion.pl
+++ b/src/bin/psql/t/010_tab_completion.pl
@@ -67,23 +67,23 @@ delete $ENV{LS_COLORS};
 # to run in the build directory so that we can use relative paths to
 # access the tmp_check subdirectory; otherwise the output from filename
 # completion tests is too variable.
-if ($ENV{TESTDIR})
+if ($ENV{TESTOUTDIR})
 {
-	chdir $ENV{TESTDIR} or die "could not chdir to \"$ENV{TESTDIR}\": $!";
+	chdir "$ENV{TESTOUTDIR}" or die "could not chdir to \"$ENV{TESTOUTDIR}\": $!";
 }
 
 # Create some junk files for filename completion testing.
 my $FH;
-open $FH, ">", "tmp_check/somefile"
-  or die("could not create file \"tmp_check/somefile\": $!");
+open $FH, ">", "somefile"
+  or die("could not create file \"somefile\": $!");
 print $FH "some stuff\n";
 close $FH;
-open $FH, ">", "tmp_check/afile123"
-  or die("could not create file \"tmp_check/afile123\": $!");
+open $FH, ">", "afile123"
+  or die("could not create file \"afile123\": $!");
 print $FH "more stuff\n";
 close $FH;
-open $FH, ">", "tmp_check/afile456"
-  or die("could not create file \"tmp_check/afile456\": $!");
+open $FH, ">", "afile456"
+  or die("could not create file \"afile456\": $!");
 print $FH "other stuff\n";
 close $FH;
 
@@ -184,16 +184,16 @@ clear_query();
 
 # check filename completion
 check_completion(
-	"\\lo_import tmp_check/some\t",
-	qr|tmp_check/somefile |,
+	"\\lo_import some\t",
+	qr|somefile |,
 	"filename completion with one possibility");
 
 clear_query();
 
 # note: readline might print a bell before the completion
 check_completion(
-	"\\lo_import tmp_check/af\t",
-	qr|tmp_check/af\a?ile|,
+	"\\lo_import af\t",
+	qr|af\a?ile|,
 	"filename completion with multiple possibilities");
 
 clear_query();
@@ -202,15 +202,15 @@ clear_query();
 # note: broken versions of libedit want to backslash the closing quote;
 # not much we can do about that
 check_completion(
-	"COPY foo FROM tmp_check/some\t",
-	qr|'tmp_check/somefile\\?' |,
+	"COPY foo FROM some\t",
+	qr|'somefile\\?' |,
 	"quoted filename completion with one possibility");
 
 clear_line();
 
 check_completion(
-	"COPY foo FROM tmp_check/af\t",
-	qr|'tmp_check/afile|,
+	"COPY foo FROM af\t",
+	qr|'afile|,
 	"quoted filename completion with multiple possibilities");
 
 # some versions of readline/libedit require two tabs here, some only need one
@@ -218,7 +218,7 @@ check_completion(
 # the quotes might appear, too
 check_completion(
 	"\t\t",
-	qr|afile123'? +'?(tmp_check/)?afile456|,
+	qr|afile123'? +'?afile456|,
 	"offer multiple file choices");
 
 clear_line();
diff --git a/src/test/perl/PostgreSQL/Test/Utils.pm b/src/test/perl/PostgreSQL/Test/Utils.pm
index f29d43f1f32..7878bc4ef48 100644
--- a/src/test/perl/PostgreSQL/Test/Utils.pm
+++ b/src/test/perl/PostgreSQL/Test/Utils.pm
@@ -187,7 +187,7 @@ INIT
 	# Determine output directories, and create them.  The base path is the
 	# TESTDIR environment variable, which is normally set by the invoking
 	# Makefile.
-	$tmp_check = $ENV{TESTDIR} ? "$ENV{TESTDIR}/tmp_check" : "tmp_check";
+	$tmp_check = $ENV{TESTOUTDIR} ? "$ENV{TESTOUTDIR}" : "tmp_check";
 	$log_path = "$tmp_check/log";
 
 	mkdir $tmp_check;
diff --git a/src/tools/msvc/vcregress.pl b/src/tools/msvc/vcregress.pl
index fc826da3ff2..cf099033ebd 100644
--- a/src/tools/msvc/vcregress.pl
+++ b/src/tools/msvc/vcregress.pl
@@ -252,6 +252,8 @@ sub tap_check
 	# add the module build dir as the second element in the PATH
 	$ENV{PATH} =~ s!;!;$topdir/$Config/$module;!;
 
+	$ENV{TESTOUTDIR} = "$dir/tmp_check";
+
 	rmtree('tmp_check');
 	system(@args);
 	my $status = $? >> 8;
-- 
2.23.0.385.gbc12974a89

  [text/x-diff] v5-0015-meson-Add-draft-of-a-meson-based-buildsystem.patch (275.1K, ../../20211031232448.wsma7sggfwyxppjc@alap3.anarazel.de/16-v5-0015-meson-Add-draft-of-a-meson-based-buildsystem.patch)
  download | inline diff:
From 8152a34caee2ce97112a860c01b1c6a0b4cef73f Mon Sep 17 00:00:00 2001
From: Andres Freund <andres@anarazel.de>
Date: Fri, 10 Sep 2021 09:51:51 -0700
Subject: [PATCH v5 15/16] meson: Add draft of a meson based buildsystem.

Author: Andres Freund
Author: Thomas Munro
Author: John Naylor <john.naylor@enterprisedb.com>
---
 configure                                     |    6 +
 configure.ac                                  |    6 +
 contrib/adminpack/meson.build                 |   20 +
 contrib/amcheck/meson.build                   |   37 +
 contrib/auth_delay/meson.build                |    4 +
 contrib/auto_explain/meson.build              |   13 +
 contrib/bloom/meson.build                     |   38 +
 contrib/bool_plperl/meson.build               |   37 +
 contrib/btree_gin/meson.build                 |   51 +
 contrib/btree_gist/meson.build                |   79 +
 contrib/citext/meson.build                    |   29 +
 contrib/cube/meson.build                      |   42 +
 contrib/dblink/meson.build                    |   29 +
 contrib/dict_int/meson.build                  |   19 +
 contrib/dict_xsyn/meson.build                 |   26 +
 contrib/earthdistance/meson.build             |   20 +
 contrib/file_fdw/meson.build                  |   19 +
 contrib/fuzzystrmatch/meson.build             |   23 +
 contrib/hstore/meson.build                    |   36 +
 contrib/hstore_plperl/meson.build             |   38 +
 contrib/hstore_plpython/meson.build           |   34 +
 contrib/intagg/meson.build                    |    6 +
 contrib/intarray/meson.build                  |   34 +
 contrib/isn/meson.build                       |   25 +
 contrib/jsonb_plperl/meson.build              |   37 +
 contrib/jsonb_plpython/meson.build            |   33 +
 contrib/lo/meson.build                        |   24 +
 contrib/ltree/meson.build                     |   36 +
 contrib/ltree_plpython/meson.build            |   34 +
 contrib/meson.build                           |   63 +
 contrib/oid2name/meson.build                  |   14 +
 contrib/old_snapshot/meson.build              |   14 +
 contrib/pageinspect/meson.build               |   45 +
 contrib/passwordcheck/meson.build             |   27 +
 contrib/pg_buffercache/meson.build            |   16 +
 contrib/pg_freespacemap/meson.build           |   15 +
 contrib/pg_prewarm/meson.build                |   16 +
 contrib/pg_stat_statements/meson.build        |   31 +
 contrib/pg_surgery/meson.build                |   23 +
 contrib/pg_trgm/meson.build                   |   33 +
 contrib/pg_visibility/meson.build             |   25 +
 contrib/pgcrypto/meson.build                  |  117 +
 contrib/pgrowlocks/meson.build                |   15 +
 contrib/pgstattuple/meson.build               |   30 +
 contrib/postgres_fdw/meson.build              |   31 +
 contrib/seg/meson.build                       |   40 +
 contrib/sepgsql/meson.build                   |   34 +
 contrib/spi/meson.build                       |   43 +
 contrib/sslinfo/meson.build                   |   21 +
 contrib/tablefunc/meson.build                 |   23 +
 contrib/tcn/meson.build                       |   13 +
 contrib/test_decoding/meson.build             |   69 +
 contrib/tsm_system_rows/meson.build           |   22 +
 contrib/tsm_system_time/meson.build           |   22 +
 contrib/unaccent/meson.build                  |   30 +
 contrib/uuid-ossp/meson.build                 |   31 +
 contrib/vacuumlo/meson.build                  |   14 +
 contrib/xml2/meson.build                      |   30 +
 conversion_helpers.txt                        |    6 +
 doc/src/sgml/meson.build                      |  241 ++
 doc/src/sgml/resolv.xsl                       |    7 +
 doc/src/sgml/version.sgml.in                  |    2 +
 meson.build                                   | 2130 +++++++++++++++++
 meson_options.txt                             |   90 +
 src/backend/access/brin/meson.build           |   12 +
 src/backend/access/common/meson.build         |   18 +
 src/backend/access/gin/meson.build            |   17 +
 src/backend/access/gist/meson.build           |   13 +
 src/backend/access/hash/meson.build           |   12 +
 src/backend/access/heap/meson.build           |   11 +
 src/backend/access/index/meson.build          |    6 +
 src/backend/access/meson.build                |   13 +
 src/backend/access/nbtree/meson.build         |   13 +
 src/backend/access/rmgrdesc/meson.build       |   26 +
 src/backend/access/spgist/meson.build         |   13 +
 src/backend/access/table/meson.build          |    6 +
 src/backend/access/tablesample/meson.build    |    5 +
 src/backend/access/transam/meson.build        |   28 +
 src/backend/bootstrap/meson.build             |   12 +
 src/backend/catalog/meson.build               |   41 +
 src/backend/commands/meson.build              |   50 +
 src/backend/executor/meson.build              |   67 +
 src/backend/foreign/meson.build               |    3 +
 src/backend/jit/llvm/meson.build              |   41 +
 src/backend/jit/meson.build                   |    3 +
 src/backend/lib/meson.build                   |   12 +
 src/backend/libpq/meson.build                 |   28 +
 src/backend/main/meson.build                  |    2 +
 src/backend/meson.build                       |  197 ++
 src/backend/nodes/meson.build                 |   17 +
 src/backend/optimizer/geqo/meson.build        |   17 +
 src/backend/optimizer/meson.build             |    5 +
 src/backend/optimizer/path/meson.build        |   11 +
 src/backend/optimizer/plan/meson.build        |   10 +
 src/backend/optimizer/prep/meson.build        |    7 +
 src/backend/optimizer/util/meson.build        |   16 +
 src/backend/parser/meson.build                |   43 +
 src/backend/partitioning/meson.build          |    5 +
 src/backend/port/meson.build                  |   28 +
 src/backend/port/win32/meson.build            |    6 +
 src/backend/postmaster/meson.build            |   15 +
 src/backend/regex/meson.build                 |   15 +
 .../replication/libpqwalreceiver/meson.build  |   13 +
 src/backend/replication/logical/meson.build   |   14 +
 src/backend/replication/meson.build           |   42 +
 src/backend/replication/pgoutput/meson.build  |   11 +
 src/backend/rewrite/meson.build               |    9 +
 src/backend/snowball/meson.build              |   83 +
 src/backend/statistics/meson.build            |    6 +
 src/backend/storage/buffer/meson.build        |    7 +
 src/backend/storage/file/meson.build          |    8 +
 src/backend/storage/freespace/meson.build     |    5 +
 src/backend/storage/ipc/meson.build           |   20 +
 src/backend/storage/large_object/meson.build  |    3 +
 src/backend/storage/lmgr/meson.build          |   18 +
 src/backend/storage/meson.build               |    9 +
 src/backend/storage/page/meson.build          |    5 +
 src/backend/storage/smgr/meson.build          |    4 +
 src/backend/storage/sync/meson.build          |    4 +
 src/backend/tcop/meson.build                  |    8 +
 src/backend/tsearch/meson.build               |   21 +
 src/backend/utils/activity/meson.build        |    5 +
 src/backend/utils/adt/meson.build             |  118 +
 src/backend/utils/cache/meson.build           |   16 +
 src/backend/utils/error/meson.build           |    4 +
 src/backend/utils/fmgr/meson.build            |    8 +
 src/backend/utils/hash/meson.build            |    4 +
 src/backend/utils/init/meson.build            |    4 +
 .../utils/mb/conversion_procs/meson.build     |   38 +
 src/backend/utils/mb/meson.build              |    9 +
 src/backend/utils/meson.build                 |   13 +
 src/backend/utils/misc/meson.build            |   28 +
 src/backend/utils/mmgr/meson.build            |   10 +
 src/backend/utils/resowner/meson.build        |    3 +
 src/backend/utils/sort/meson.build            |    7 +
 src/backend/utils/time/meson.build            |    4 +
 src/bin/initdb/meson.build                    |   24 +
 src/bin/meson.build                           |   20 +
 src/bin/pg_amcheck/meson.build                |   22 +
 src/bin/pg_archivecleanup/meson.build         |   14 +
 src/bin/pg_basebackup/meson.build             |   44 +
 src/bin/pg_checksums/meson.build              |   16 +
 src/bin/pg_config/meson.build                 |   14 +
 src/bin/pg_controldata/meson.build            |   14 +
 src/bin/pg_ctl/meson.build                    |   17 +
 src/bin/pg_dump/meson.build                   |   69 +
 src/bin/pg_resetwal/meson.build               |   15 +
 src/bin/pg_rewind/meson.build                 |   34 +
 src/bin/pg_test_fsync/meson.build             |   14 +
 src/bin/pg_test_timing/meson.build            |   14 +
 src/bin/pg_upgrade/meson.build                |   26 +
 src/bin/pg_verifybackup/meson.build           |   25 +
 src/bin/pg_waldump/meson.build                |   23 +
 src/bin/pgbench/meson.build                   |   38 +
 src/bin/pgevent/meson.build                   |   32 +
 src/bin/psql/meson.build                      |   65 +
 src/bin/scripts/meson.build                   |   46 +
 src/common/meson.build                        |  155 ++
 src/common/unicode/meson.build                |   99 +
 src/fe_utils/meson.build                      |   27 +
 src/include/catalog/meson.build               |  129 +
 src/include/meson.build                       |   50 +
 src/include/parser/meson.build                |   10 +
 src/include/pch/c_pch.h                       |    1 +
 src/include/pch/postgres_pch.h                |    1 +
 src/include/pg_config_ext.h.meson             |    7 +
 src/include/storage/meson.build               |   16 +
 src/include/utils/meson.build                 |   22 +
 src/interfaces/libpq/meson.build              |   99 +
 src/meson.build                               |   10 +
 src/pl/meson.build                            |    4 +
 src/pl/plperl/meson.build                     |   81 +
 src/pl/plpgsql/meson.build                    |    1 +
 src/pl/plpgsql/src/meson.build                |   67 +
 src/pl/plpython/meson.build                   |   78 +
 src/port/meson.build                          |  191 ++
 src/port/win32ver.rc.in                       |   41 +
 src/test/authentication/meson.build           |    9 +
 src/test/isolation/meson.build                |   49 +
 src/test/kerberos/meson.build                 |   12 +
 src/test/ldap/meson.build                     |    9 +
 src/test/meson.build                          |   19 +
 src/test/modules/brin/meson.build             |   19 +
 src/test/modules/commit_ts/meson.build        |   20 +
 src/test/modules/delay_execution/meson.build  |   15 +
 src/test/modules/dummy_index_am/meson.build   |   20 +
 src/test/modules/dummy_seclabel/meson.build   |   20 +
 src/test/modules/libpq_pipeline/meson.build   |   21 +
 src/test/modules/meson.build                  |   25 +
 src/test/modules/plsample/meson.build         |   20 +
 src/test/modules/snapshot_too_old/meson.build |   11 +
 src/test/modules/spgist_name_ops/meson.build  |   20 +
 .../ssl_passphrase_callback/meson.build       |   45 +
 src/test/modules/test_bloomfilter/meson.build |   20 +
 src/test/modules/test_ddl_deparse/meson.build |   40 +
 src/test/modules/test_extensions/meson.build  |   38 +
 .../modules/test_ginpostinglist/meson.build   |   20 +
 src/test/modules/test_integerset/meson.build  |   20 +
 src/test/modules/test_misc/meson.build        |    8 +
 src/test/modules/test_parser/meson.build      |   20 +
 src/test/modules/test_pg_dump/meson.build     |   24 +
 src/test/modules/test_predtest/meson.build    |   20 +
 src/test/modules/test_rbtree/meson.build      |   20 +
 src/test/modules/test_regex/meson.build       |   21 +
 src/test/modules/test_rls_hooks/meson.build   |   19 +
 src/test/modules/test_shm_mq/meson.build      |   24 +
 src/test/modules/unsafe_tests/meson.build     |    9 +
 src/test/modules/worker_spi/meson.build       |   23 +
 src/test/recovery/meson.build                 |   33 +
 src/test/regress/meson.build                  |   57 +
 src/test/ssl/meson.build                      |   10 +
 src/test/subscription/meson.build             |   34 +
 src/timezone/meson.build                      |   50 +
 src/timezone/tznames/meson.build              |   20 +
 src/tools/find_meson                          |   20 +
 src/tools/irlink                              |   28 +
 src/tools/msvc/export2def.pl                  |   22 +
 src/tools/msvc/gendef2.pl                     |  177 ++
 .../relativize_shared_library_references      |   84 +
 src/tools/relpath.py                          |    6 +
 src/tools/testwrap                            |   22 +
 221 files changed, 8521 insertions(+)
 create mode 100644 contrib/adminpack/meson.build
 create mode 100644 contrib/amcheck/meson.build
 create mode 100644 contrib/auth_delay/meson.build
 create mode 100644 contrib/auto_explain/meson.build
 create mode 100644 contrib/bloom/meson.build
 create mode 100644 contrib/bool_plperl/meson.build
 create mode 100644 contrib/btree_gin/meson.build
 create mode 100644 contrib/btree_gist/meson.build
 create mode 100644 contrib/citext/meson.build
 create mode 100644 contrib/cube/meson.build
 create mode 100644 contrib/dblink/meson.build
 create mode 100644 contrib/dict_int/meson.build
 create mode 100644 contrib/dict_xsyn/meson.build
 create mode 100644 contrib/earthdistance/meson.build
 create mode 100644 contrib/file_fdw/meson.build
 create mode 100644 contrib/fuzzystrmatch/meson.build
 create mode 100644 contrib/hstore/meson.build
 create mode 100644 contrib/hstore_plperl/meson.build
 create mode 100644 contrib/hstore_plpython/meson.build
 create mode 100644 contrib/intagg/meson.build
 create mode 100644 contrib/intarray/meson.build
 create mode 100644 contrib/isn/meson.build
 create mode 100644 contrib/jsonb_plperl/meson.build
 create mode 100644 contrib/jsonb_plpython/meson.build
 create mode 100644 contrib/lo/meson.build
 create mode 100644 contrib/ltree/meson.build
 create mode 100644 contrib/ltree_plpython/meson.build
 create mode 100644 contrib/meson.build
 create mode 100644 contrib/oid2name/meson.build
 create mode 100644 contrib/old_snapshot/meson.build
 create mode 100644 contrib/pageinspect/meson.build
 create mode 100644 contrib/passwordcheck/meson.build
 create mode 100644 contrib/pg_buffercache/meson.build
 create mode 100644 contrib/pg_freespacemap/meson.build
 create mode 100644 contrib/pg_prewarm/meson.build
 create mode 100644 contrib/pg_stat_statements/meson.build
 create mode 100644 contrib/pg_surgery/meson.build
 create mode 100644 contrib/pg_trgm/meson.build
 create mode 100644 contrib/pg_visibility/meson.build
 create mode 100644 contrib/pgcrypto/meson.build
 create mode 100644 contrib/pgrowlocks/meson.build
 create mode 100644 contrib/pgstattuple/meson.build
 create mode 100644 contrib/postgres_fdw/meson.build
 create mode 100644 contrib/seg/meson.build
 create mode 100644 contrib/sepgsql/meson.build
 create mode 100644 contrib/spi/meson.build
 create mode 100644 contrib/sslinfo/meson.build
 create mode 100644 contrib/tablefunc/meson.build
 create mode 100644 contrib/tcn/meson.build
 create mode 100644 contrib/test_decoding/meson.build
 create mode 100644 contrib/tsm_system_rows/meson.build
 create mode 100644 contrib/tsm_system_time/meson.build
 create mode 100644 contrib/unaccent/meson.build
 create mode 100644 contrib/uuid-ossp/meson.build
 create mode 100644 contrib/vacuumlo/meson.build
 create mode 100644 contrib/xml2/meson.build
 create mode 100644 conversion_helpers.txt
 create mode 100644 doc/src/sgml/meson.build
 create mode 100644 doc/src/sgml/resolv.xsl
 create mode 100644 doc/src/sgml/version.sgml.in
 create mode 100644 meson.build
 create mode 100644 meson_options.txt
 create mode 100644 src/backend/access/brin/meson.build
 create mode 100644 src/backend/access/common/meson.build
 create mode 100644 src/backend/access/gin/meson.build
 create mode 100644 src/backend/access/gist/meson.build
 create mode 100644 src/backend/access/hash/meson.build
 create mode 100644 src/backend/access/heap/meson.build
 create mode 100644 src/backend/access/index/meson.build
 create mode 100644 src/backend/access/meson.build
 create mode 100644 src/backend/access/nbtree/meson.build
 create mode 100644 src/backend/access/rmgrdesc/meson.build
 create mode 100644 src/backend/access/spgist/meson.build
 create mode 100644 src/backend/access/table/meson.build
 create mode 100644 src/backend/access/tablesample/meson.build
 create mode 100644 src/backend/access/transam/meson.build
 create mode 100644 src/backend/bootstrap/meson.build
 create mode 100644 src/backend/catalog/meson.build
 create mode 100644 src/backend/commands/meson.build
 create mode 100644 src/backend/executor/meson.build
 create mode 100644 src/backend/foreign/meson.build
 create mode 100644 src/backend/jit/llvm/meson.build
 create mode 100644 src/backend/jit/meson.build
 create mode 100644 src/backend/lib/meson.build
 create mode 100644 src/backend/libpq/meson.build
 create mode 100644 src/backend/main/meson.build
 create mode 100644 src/backend/meson.build
 create mode 100644 src/backend/nodes/meson.build
 create mode 100644 src/backend/optimizer/geqo/meson.build
 create mode 100644 src/backend/optimizer/meson.build
 create mode 100644 src/backend/optimizer/path/meson.build
 create mode 100644 src/backend/optimizer/plan/meson.build
 create mode 100644 src/backend/optimizer/prep/meson.build
 create mode 100644 src/backend/optimizer/util/meson.build
 create mode 100644 src/backend/parser/meson.build
 create mode 100644 src/backend/partitioning/meson.build
 create mode 100644 src/backend/port/meson.build
 create mode 100644 src/backend/port/win32/meson.build
 create mode 100644 src/backend/postmaster/meson.build
 create mode 100644 src/backend/regex/meson.build
 create mode 100644 src/backend/replication/libpqwalreceiver/meson.build
 create mode 100644 src/backend/replication/logical/meson.build
 create mode 100644 src/backend/replication/meson.build
 create mode 100644 src/backend/replication/pgoutput/meson.build
 create mode 100644 src/backend/rewrite/meson.build
 create mode 100644 src/backend/snowball/meson.build
 create mode 100644 src/backend/statistics/meson.build
 create mode 100644 src/backend/storage/buffer/meson.build
 create mode 100644 src/backend/storage/file/meson.build
 create mode 100644 src/backend/storage/freespace/meson.build
 create mode 100644 src/backend/storage/ipc/meson.build
 create mode 100644 src/backend/storage/large_object/meson.build
 create mode 100644 src/backend/storage/lmgr/meson.build
 create mode 100644 src/backend/storage/meson.build
 create mode 100644 src/backend/storage/page/meson.build
 create mode 100644 src/backend/storage/smgr/meson.build
 create mode 100644 src/backend/storage/sync/meson.build
 create mode 100644 src/backend/tcop/meson.build
 create mode 100644 src/backend/tsearch/meson.build
 create mode 100644 src/backend/utils/activity/meson.build
 create mode 100644 src/backend/utils/adt/meson.build
 create mode 100644 src/backend/utils/cache/meson.build
 create mode 100644 src/backend/utils/error/meson.build
 create mode 100644 src/backend/utils/fmgr/meson.build
 create mode 100644 src/backend/utils/hash/meson.build
 create mode 100644 src/backend/utils/init/meson.build
 create mode 100644 src/backend/utils/mb/conversion_procs/meson.build
 create mode 100644 src/backend/utils/mb/meson.build
 create mode 100644 src/backend/utils/meson.build
 create mode 100644 src/backend/utils/misc/meson.build
 create mode 100644 src/backend/utils/mmgr/meson.build
 create mode 100644 src/backend/utils/resowner/meson.build
 create mode 100644 src/backend/utils/sort/meson.build
 create mode 100644 src/backend/utils/time/meson.build
 create mode 100644 src/bin/initdb/meson.build
 create mode 100644 src/bin/meson.build
 create mode 100644 src/bin/pg_amcheck/meson.build
 create mode 100644 src/bin/pg_archivecleanup/meson.build
 create mode 100644 src/bin/pg_basebackup/meson.build
 create mode 100644 src/bin/pg_checksums/meson.build
 create mode 100644 src/bin/pg_config/meson.build
 create mode 100644 src/bin/pg_controldata/meson.build
 create mode 100644 src/bin/pg_ctl/meson.build
 create mode 100644 src/bin/pg_dump/meson.build
 create mode 100644 src/bin/pg_resetwal/meson.build
 create mode 100644 src/bin/pg_rewind/meson.build
 create mode 100644 src/bin/pg_test_fsync/meson.build
 create mode 100644 src/bin/pg_test_timing/meson.build
 create mode 100644 src/bin/pg_upgrade/meson.build
 create mode 100644 src/bin/pg_verifybackup/meson.build
 create mode 100644 src/bin/pg_waldump/meson.build
 create mode 100644 src/bin/pgbench/meson.build
 create mode 100644 src/bin/pgevent/meson.build
 create mode 100644 src/bin/psql/meson.build
 create mode 100644 src/bin/scripts/meson.build
 create mode 100644 src/common/meson.build
 create mode 100644 src/common/unicode/meson.build
 create mode 100644 src/fe_utils/meson.build
 create mode 100644 src/include/catalog/meson.build
 create mode 100644 src/include/meson.build
 create mode 100644 src/include/parser/meson.build
 create mode 100644 src/include/pch/c_pch.h
 create mode 100644 src/include/pch/postgres_pch.h
 create mode 100644 src/include/pg_config_ext.h.meson
 create mode 100644 src/include/storage/meson.build
 create mode 100644 src/include/utils/meson.build
 create mode 100644 src/interfaces/libpq/meson.build
 create mode 100644 src/meson.build
 create mode 100644 src/pl/meson.build
 create mode 100644 src/pl/plperl/meson.build
 create mode 100644 src/pl/plpgsql/meson.build
 create mode 100644 src/pl/plpgsql/src/meson.build
 create mode 100644 src/pl/plpython/meson.build
 create mode 100644 src/port/meson.build
 create mode 100644 src/port/win32ver.rc.in
 create mode 100644 src/test/authentication/meson.build
 create mode 100644 src/test/isolation/meson.build
 create mode 100644 src/test/kerberos/meson.build
 create mode 100644 src/test/ldap/meson.build
 create mode 100644 src/test/meson.build
 create mode 100644 src/test/modules/brin/meson.build
 create mode 100644 src/test/modules/commit_ts/meson.build
 create mode 100644 src/test/modules/delay_execution/meson.build
 create mode 100644 src/test/modules/dummy_index_am/meson.build
 create mode 100644 src/test/modules/dummy_seclabel/meson.build
 create mode 100644 src/test/modules/libpq_pipeline/meson.build
 create mode 100644 src/test/modules/meson.build
 create mode 100644 src/test/modules/plsample/meson.build
 create mode 100644 src/test/modules/snapshot_too_old/meson.build
 create mode 100644 src/test/modules/spgist_name_ops/meson.build
 create mode 100644 src/test/modules/ssl_passphrase_callback/meson.build
 create mode 100644 src/test/modules/test_bloomfilter/meson.build
 create mode 100644 src/test/modules/test_ddl_deparse/meson.build
 create mode 100644 src/test/modules/test_extensions/meson.build
 create mode 100644 src/test/modules/test_ginpostinglist/meson.build
 create mode 100644 src/test/modules/test_integerset/meson.build
 create mode 100644 src/test/modules/test_misc/meson.build
 create mode 100644 src/test/modules/test_parser/meson.build
 create mode 100644 src/test/modules/test_pg_dump/meson.build
 create mode 100644 src/test/modules/test_predtest/meson.build
 create mode 100644 src/test/modules/test_rbtree/meson.build
 create mode 100644 src/test/modules/test_regex/meson.build
 create mode 100644 src/test/modules/test_rls_hooks/meson.build
 create mode 100644 src/test/modules/test_shm_mq/meson.build
 create mode 100644 src/test/modules/unsafe_tests/meson.build
 create mode 100644 src/test/modules/worker_spi/meson.build
 create mode 100644 src/test/recovery/meson.build
 create mode 100644 src/test/regress/meson.build
 create mode 100644 src/test/ssl/meson.build
 create mode 100644 src/test/subscription/meson.build
 create mode 100644 src/timezone/meson.build
 create mode 100644 src/timezone/tznames/meson.build
 create mode 100755 src/tools/find_meson
 create mode 100644 src/tools/irlink
 create mode 100644 src/tools/msvc/export2def.pl
 create mode 100644 src/tools/msvc/gendef2.pl
 create mode 100755 src/tools/relativize_shared_library_references
 create mode 100755 src/tools/relpath.py
 create mode 100755 src/tools/testwrap

diff --git a/configure b/configure
index fd15801b34c..c91295fcab5 100755
--- a/configure
+++ b/configure
@@ -21045,3 +21045,9 @@ if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
 $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
 fi
 
+
+# Ensure that any meson build directories would reconfigure and see that
+# there's a conflicting in-tree build and can error out.
+if test "$vpath_build"="no"; then
+  touch meson.build
+fi
diff --git a/configure.ac b/configure.ac
index 973f83db52c..95c1f7ac6c9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2494,3 +2494,9 @@ AC_CONFIG_HEADERS([src/interfaces/ecpg/include/ecpg_config.h],
                   [echo >src/interfaces/ecpg/include/stamp-h])
 
 AC_OUTPUT
+
+# Ensure that any meson build directories would reconfigure and see that
+# there's a conflicting in-tree build and can error out.
+if test "$vpath_build"="no"; then
+  touch meson.build
+fi
diff --git a/contrib/adminpack/meson.build b/contrib/adminpack/meson.build
new file mode 100644
index 00000000000..457a6089445
--- /dev/null
+++ b/contrib/adminpack/meson.build
@@ -0,0 +1,20 @@
+autoinc = shared_module('adminpack',
+  ['adminpack.c'],
+  kwargs: contrib_mod_args,
+)
+
+install_data(
+  'adminpack.control',
+  'adminpack--1.0.sql',
+  'adminpack--1.0--1.1.sql',
+  'adminpack--1.1--2.0.sql',
+  'adminpack--2.0--2.1.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'adminpack',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': ['adminpack'],
+}
diff --git a/contrib/amcheck/meson.build b/contrib/amcheck/meson.build
new file mode 100644
index 00000000000..e656d35f41f
--- /dev/null
+++ b/contrib/amcheck/meson.build
@@ -0,0 +1,37 @@
+amcheck = shared_module('amcheck', [
+    'verify_heapam.c',
+    'verify_nbtree.c',
+  ],
+  kwargs: contrib_mod_args,
+)
+
+install_data(
+  'amcheck.control',
+  'amcheck--1.0.sql',
+  'amcheck--1.0--1.1.sql',
+  'amcheck--1.1--1.2.sql',
+  'amcheck--1.2--1.3.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'amcheck',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'check',
+    'check_btree',
+    'check_heap'
+  ],
+}
+
+tap_tests += {
+  'name': 'amcheck',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'tests': [
+    't/001_verify_heapam.pl',
+    't/002_cic.pl',
+    't/003_cic_2pc.pl',
+  ],
+}
diff --git a/contrib/auth_delay/meson.build b/contrib/auth_delay/meson.build
new file mode 100644
index 00000000000..941bb6f39a4
--- /dev/null
+++ b/contrib/auth_delay/meson.build
@@ -0,0 +1,4 @@
+autoinc = shared_module('auth_delay',
+  ['auth_delay.c'],
+  kwargs: contrib_mod_args,
+)
diff --git a/contrib/auto_explain/meson.build b/contrib/auto_explain/meson.build
new file mode 100644
index 00000000000..321896efa2c
--- /dev/null
+++ b/contrib/auto_explain/meson.build
@@ -0,0 +1,13 @@
+auto_explain = shared_module('auto_explain',
+  files('auto_explain.c'),
+  kwargs: contrib_mod_args,
+)
+
+tap_tests += {
+  'name': 'auto_explain',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'tests': [
+    't/001_auto_explain.pl',
+  ]
+}
diff --git a/contrib/bloom/meson.build b/contrib/bloom/meson.build
new file mode 100644
index 00000000000..5c5d33c7f7a
--- /dev/null
+++ b/contrib/bloom/meson.build
@@ -0,0 +1,38 @@
+bloom_sources = files(
+  'blcost.c',
+  'blinsert.c',
+  'blscan.c',
+  'blutils.c',
+  'blvacuum.c',
+  'blvalidate.c',
+)
+
+bloom = shared_module('bloom',
+  bloom_sources,
+  c_pch: '../../src/include/pch/c_pch.h',
+  kwargs: contrib_mod_args,
+)
+
+install_data(
+  'bloom.control',
+  'bloom--1.0.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'bloom',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'bloom'
+  ],
+}
+
+tap_tests += {
+  'name': 'bloom',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'tests': [
+    't/001_wal.pl',
+  ],
+}
diff --git a/contrib/bool_plperl/meson.build b/contrib/bool_plperl/meson.build
new file mode 100644
index 00000000000..e15dc5285eb
--- /dev/null
+++ b/contrib/bool_plperl/meson.build
@@ -0,0 +1,37 @@
+if not perl_dep.found()
+  subdir_done()
+endif
+
+bool_plperl_sources = files(
+  'bool_plperl.c',
+)
+
+bool_plperl = shared_module('bool_plperl',
+  bool_plperl_sources,
+  include_directories: [plperl_inc, include_directories('.')],
+  kwargs: pg_mod_args + {
+    'dependencies': [perl_dep, contrib_mod_args['dependencies']],
+  },
+)
+
+install_data(
+  'bool_plperl.control',
+  'bool_plperl--1.0.sql',
+  kwargs: contrib_data_args,
+)
+
+install_data(
+  'bool_plperlu.control',
+  'bool_plperlu--1.0.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'bool_plperl',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'bool_plperl',
+    'bool_plperlu',
+  ],
+}
diff --git a/contrib/btree_gin/meson.build b/contrib/btree_gin/meson.build
new file mode 100644
index 00000000000..d25ece7500e
--- /dev/null
+++ b/contrib/btree_gin/meson.build
@@ -0,0 +1,51 @@
+btree_gin = shared_module('btree_gin',
+  files('btree_gin.c'),
+  kwargs: contrib_mod_args,
+)
+
+install_data(
+  'btree_gin.control',
+  'btree_gin--1.0.sql',
+  'btree_gin--1.0--1.1.sql',
+  'btree_gin--1.1--1.2.sql',
+  'btree_gin--1.2--1.3.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'btree_gin',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'install_btree_gin',
+    'int2',
+    'int4',
+    'int8',
+    'float4',
+    'float8',
+    'money',
+    'oid',
+    'timestamp',
+    'timestamptz',
+    'time',
+    'timetz',
+    'date',
+    'interval',
+    'macaddr',
+    'macaddr8',
+    'inet',
+    'cidr',
+    'text',
+    'varchar',
+    'char',
+    'bytea',
+    'bit',
+    'varbit',
+    'numeric',
+    'enum',
+    'uuid',
+    'name',
+    'bool',
+    'bpchar',
+  ],
+}
diff --git a/contrib/btree_gist/meson.build b/contrib/btree_gist/meson.build
new file mode 100644
index 00000000000..8ee0faea401
--- /dev/null
+++ b/contrib/btree_gist/meson.build
@@ -0,0 +1,79 @@
+btree_gist_sources = files(
+  'btree_bit.c',
+  'btree_bytea.c',
+  'btree_cash.c',
+  'btree_date.c',
+  'btree_enum.c',
+  'btree_float4.c',
+  'btree_float8.c',
+  'btree_gist.c',
+  'btree_inet.c',
+  'btree_int2.c',
+  'btree_int4.c',
+  'btree_int8.c',
+  'btree_interval.c',
+  'btree_macaddr.c',
+  'btree_macaddr8.c',
+  'btree_numeric.c',
+  'btree_oid.c',
+  'btree_text.c',
+  'btree_time.c',
+  'btree_ts.c',
+  'btree_utils_num.c',
+  'btree_utils_var.c',
+  'btree_uuid.c',
+)
+
+btree_gist = shared_module('btree_gist',
+  btree_gist_sources,
+  c_pch: '../../src/include/pch/c_pch.h',
+  kwargs: contrib_mod_args,
+)
+
+install_data(
+  'btree_gist.control',
+  'btree_gist--1.0--1.1.sql',
+  'btree_gist--1.1--1.2.sql',
+  'btree_gist--1.2.sql',
+  'btree_gist--1.2--1.3.sql',
+  'btree_gist--1.3--1.4.sql',
+  'btree_gist--1.4--1.5.sql',
+  'btree_gist--1.5--1.6.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'btree_gist',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'init',
+    'int2',
+    'int4',
+    'int8',
+    'float4',
+    'float8',
+    'cash',
+    'oid',
+    'timestamp',
+    'timestamptz',
+    'time',
+    'timetz',
+    'date',
+    'interval',
+    'macaddr',
+    'macaddr8',
+    'inet',
+    'cidr',
+    'text',
+    'varchar',
+    'char',
+    'bytea',
+    'bit',
+    'varbit',
+    'numeric',
+    'uuid',
+    'not_equal',
+    'enum',
+  ],
+}
diff --git a/contrib/citext/meson.build b/contrib/citext/meson.build
new file mode 100644
index 00000000000..f2e9ff2117d
--- /dev/null
+++ b/contrib/citext/meson.build
@@ -0,0 +1,29 @@
+citext_sources = files(
+  'citext.c',
+)
+
+citext = shared_module('citext',
+  citext_sources,
+  kwargs: contrib_mod_args,
+)
+
+install_data(
+  'citext.control',
+  'citext--1.0--1.1.sql',
+  'citext--1.1--1.2.sql',
+  'citext--1.2--1.3.sql',
+  'citext--1.3--1.4.sql',
+  'citext--1.4.sql',
+  'citext--1.4--1.5.sql',
+  'citext--1.5--1.6.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'citext',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'citext'
+  ],
+}
diff --git a/contrib/cube/meson.build b/contrib/cube/meson.build
new file mode 100644
index 00000000000..3cf7ebdd8ea
--- /dev/null
+++ b/contrib/cube/meson.build
@@ -0,0 +1,42 @@
+cube_sources = files(
+  'cube.c',
+)
+
+# cubescan is compiled as part of cubeparse
+cubescan = custom_target('cubescan',
+  input: ['cubescan.l'],
+  output: ['cubescan.c'],
+  command: [flex, '-o', '@OUTPUT@', '@INPUT@'])
+
+cube_sources += custom_target('cubeparse',
+  input: 'cubeparse.y',
+  output: 'cubeparse.c',
+  depends: cubescan,
+  command: [bison, bisonflags, '-o', '@OUTPUT@', '@INPUT0@'])
+
+cube = shared_module('cube',
+  cube_sources,
+  include_directories: include_directories('.'),
+  kwargs: contrib_mod_args,
+)
+
+install_data(
+  'cube.control',
+  'cube--1.0--1.1.sql',
+  'cube--1.1--1.2.sql',
+  'cube--1.2.sql',
+  'cube--1.2--1.3.sql',
+  'cube--1.3--1.4.sql',
+  'cube--1.4--1.5.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'cube',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'cube',
+    'cube_sci',
+  ],
+}
diff --git a/contrib/dblink/meson.build b/contrib/dblink/meson.build
new file mode 100644
index 00000000000..7ac253700c9
--- /dev/null
+++ b/contrib/dblink/meson.build
@@ -0,0 +1,29 @@
+dblink_sources = files(
+  'dblink.c',
+)
+
+dblink = shared_module('dblink',
+  dblink_sources,
+  kwargs: contrib_mod_args + {
+      'dependencies': pg_mod_args['dependencies'] + [libpq],
+  },
+)
+
+install_data(
+  'dblink.control',
+  'dblink--1.0--1.1.sql',
+  'dblink--1.1--1.2.sql',
+  'dblink--1.2.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'dblink',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'paths',
+    'dblink'
+  ],
+  'regress_args': ['--dlpath', meson.build_root() / 'src/test/regress'],
+}
diff --git a/contrib/dict_int/meson.build b/contrib/dict_int/meson.build
new file mode 100644
index 00000000000..7c23b275c5a
--- /dev/null
+++ b/contrib/dict_int/meson.build
@@ -0,0 +1,19 @@
+dict_int = shared_module('dict_int',
+  files('dict_int.c'),
+  kwargs: contrib_mod_args,
+)
+
+install_data(
+  'dict_int.control',
+  'dict_int--1.0.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'dict_int',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'dict_int'
+  ],
+}
diff --git a/contrib/dict_xsyn/meson.build b/contrib/dict_xsyn/meson.build
new file mode 100644
index 00000000000..7cbabba02f1
--- /dev/null
+++ b/contrib/dict_xsyn/meson.build
@@ -0,0 +1,26 @@
+dict_xsyn = shared_module('dict_xsyn',
+  files('dict_xsyn.c'),
+  kwargs: contrib_mod_args,
+)
+
+install_data(
+  'dict_xsyn.control',
+  'dict_xsyn--1.0.sql',
+  kwargs: contrib_data_args,
+)
+
+install_data(
+  'xsyn_sample.rules',
+  kwargs: contrib_data_args + {
+    'install_dir': get_option('datadir') / 'tsearch_data'
+  }
+)
+
+regress_tests += {
+  'name': 'dict_xsyn',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'dict_xsyn'
+  ],
+}
diff --git a/contrib/earthdistance/meson.build b/contrib/earthdistance/meson.build
new file mode 100644
index 00000000000..d56abf4f260
--- /dev/null
+++ b/contrib/earthdistance/meson.build
@@ -0,0 +1,20 @@
+earthdistance = shared_module('earthdistance',
+  files('earthdistance.c'),
+  kwargs: contrib_mod_args,
+)
+
+install_data(
+  'earthdistance.control',
+  'earthdistance--1.0--1.1.sql',
+  'earthdistance--1.1.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'earthdistance',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'earthdistance'
+  ],
+}
diff --git a/contrib/file_fdw/meson.build b/contrib/file_fdw/meson.build
new file mode 100644
index 00000000000..0cd3348dfd0
--- /dev/null
+++ b/contrib/file_fdw/meson.build
@@ -0,0 +1,19 @@
+file_fdw = shared_module('file_fdw',
+  files('file_fdw.c'),
+  kwargs: contrib_mod_args,
+)
+
+install_data(
+  'file_fdw.control',
+  'file_fdw--1.0.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'file_fdw',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'file_fdw'
+  ],
+}
diff --git a/contrib/fuzzystrmatch/meson.build b/contrib/fuzzystrmatch/meson.build
new file mode 100644
index 00000000000..d1e75479668
--- /dev/null
+++ b/contrib/fuzzystrmatch/meson.build
@@ -0,0 +1,23 @@
+fuzzystrmatch = shared_module('fuzzystrmatch',
+  files(
+    'fuzzystrmatch.c',
+    'dmetaphone.c'
+  ),
+  kwargs: contrib_mod_args,
+)
+
+install_data(
+  'fuzzystrmatch.control',
+  'fuzzystrmatch--1.0--1.1.sql',
+  'fuzzystrmatch--1.1.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'fuzzystrmatch',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'fuzzystrmatch'
+  ],
+}
diff --git a/contrib/hstore/meson.build b/contrib/hstore/meson.build
new file mode 100644
index 00000000000..661e61f9692
--- /dev/null
+++ b/contrib/hstore/meson.build
@@ -0,0 +1,36 @@
+# .. so that includes of hstore/hstore.h work
+hstore_inc = include_directories('.', '../')
+
+hstore = shared_module('hstore',
+  files(
+    'hstore_compat.c',
+    'hstore_gin.c',
+    'hstore_gist.c',
+    'hstore_io.c',
+    'hstore_op.c',
+    'hstore_subs.c',
+  ),
+  c_pch: '../../src/include/pch/c_pch.h',
+  kwargs: contrib_mod_args,
+)
+
+install_data(
+  'hstore.control',
+  'hstore--1.1--1.2.sql',
+  'hstore--1.3--1.4.sql',
+  'hstore--1.4.sql',
+  'hstore--1.4--1.5.sql',
+  'hstore--1.5--1.6.sql',
+  'hstore--1.6--1.7.sql',
+  'hstore--1.7--1.8.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'hstore',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'hstore'
+  ],
+}
diff --git a/contrib/hstore_plperl/meson.build b/contrib/hstore_plperl/meson.build
new file mode 100644
index 00000000000..48231cb1c9e
--- /dev/null
+++ b/contrib/hstore_plperl/meson.build
@@ -0,0 +1,38 @@
+if not perl_dep.found()
+  subdir_done()
+endif
+
+hstore_plperl_sources = files(
+  'hstore_plperl.c',
+)
+
+hstore_plperl = shared_module('hstore_plperl',
+  hstore_plperl_sources,
+  include_directories: [plperl_inc, hstore_inc],
+  kwargs: pg_mod_args + {
+    'dependencies': [perl_dep, contrib_mod_args['dependencies']],
+  },
+)
+
+install_data(
+  'hstore_plperl.control',
+  'hstore_plperl--1.0.sql',
+  kwargs: contrib_data_args,
+)
+
+install_data(
+  'hstore_plperlu.control',
+  'hstore_plperlu--1.0.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'hstore_plperl',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'hstore_plperl',
+    'hstore_plperlu',
+    'create_transform',
+  ],
+}
diff --git a/contrib/hstore_plpython/meson.build b/contrib/hstore_plpython/meson.build
new file mode 100644
index 00000000000..98114e46f5e
--- /dev/null
+++ b/contrib/hstore_plpython/meson.build
@@ -0,0 +1,34 @@
+if not python3.found()
+  subdir_done()
+endif
+
+hstore_plpython_sources = files(
+  'hstore_plpython.c',
+)
+
+hstore_plpython = shared_module('hstore_plpython3',
+  hstore_plpython_sources,
+  include_directories: [plpython_inc, hstore_inc, ],
+  kwargs: pg_mod_args + {
+    'c_args': ['-DPLPYTHON_LIBNAME="plpython3"'] + contrib_mod_args['c_args'],
+    'dependencies': [python3, contrib_mod_args['dependencies']],
+  },
+)
+
+install_data(
+  'hstore_plpython3u--1.0.sql',
+  'hstore_plpython3u.control',
+  kwargs: contrib_data_args,
+)
+
+hstore_plpython_regress = [
+  'hstore_plpython'
+]
+
+regress_tests += {
+  'name': 'hstore_plpython',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': hstore_plpython_regress,
+  'regress_args': ['--load-extension=hstore'],
+}
diff --git a/contrib/intagg/meson.build b/contrib/intagg/meson.build
new file mode 100644
index 00000000000..a0f39366f47
--- /dev/null
+++ b/contrib/intagg/meson.build
@@ -0,0 +1,6 @@
+install_data(
+  'intagg.control',
+  'intagg--1.0--1.1.sql',
+  'intagg--1.1.sql',
+  kwargs: contrib_data_args,
+)
diff --git a/contrib/intarray/meson.build b/contrib/intarray/meson.build
new file mode 100644
index 00000000000..d4fe99ca275
--- /dev/null
+++ b/contrib/intarray/meson.build
@@ -0,0 +1,34 @@
+intarray_sources = files(
+  '_int_bool.c',
+  '_int_gin.c',
+  '_int_gist.c',
+  '_int_op.c',
+  '_int_selfuncs.c',
+  '_int_tool.c',
+  '_intbig_gist.c',
+)
+
+intarray = shared_module('_int',
+  intarray_sources,
+  kwargs: contrib_mod_args,
+)
+
+install_data(
+  'intarray.control',
+  'intarray--1.0--1.1.sql',
+  'intarray--1.1--1.2.sql',
+  'intarray--1.2.sql',
+  'intarray--1.2--1.3.sql',
+  'intarray--1.3--1.4.sql',
+  'intarray--1.4--1.5.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'intarray',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    '_int'
+  ],
+}
diff --git a/contrib/isn/meson.build b/contrib/isn/meson.build
new file mode 100644
index 00000000000..ca919800b9f
--- /dev/null
+++ b/contrib/isn/meson.build
@@ -0,0 +1,25 @@
+isn_sources = files(
+  'isn.c',
+)
+
+isn = shared_module('isn',
+  isn_sources,
+  kwargs: contrib_mod_args,
+)
+
+install_data(
+  'isn.control',
+  'isn--1.0--1.1.sql',
+  'isn--1.1--1.2.sql',
+  'isn--1.1.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'isn',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'isn'
+  ],
+}
diff --git a/contrib/jsonb_plperl/meson.build b/contrib/jsonb_plperl/meson.build
new file mode 100644
index 00000000000..c34090e5f5c
--- /dev/null
+++ b/contrib/jsonb_plperl/meson.build
@@ -0,0 +1,37 @@
+if not perl_dep.found()
+  subdir_done()
+endif
+
+jsonb_plperl_sources = files(
+  'jsonb_plperl.c',
+)
+
+jsonb_plperl = shared_module('jsonb_plperl',
+  jsonb_plperl_sources,
+  include_directories: [plperl_inc],
+  kwargs: pg_mod_args + {
+    'dependencies': [perl_dep, contrib_mod_args['dependencies']],
+  },
+)
+
+install_data(
+  'jsonb_plperl.control',
+  'jsonb_plperl--1.0.sql',
+  kwargs: contrib_data_args,
+)
+
+install_data(
+  'jsonb_plperlu.control',
+  'jsonb_plperlu--1.0.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'jsonb_plperl',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'jsonb_plperl',
+    'jsonb_plperlu',
+  ],
+}
diff --git a/contrib/jsonb_plpython/meson.build b/contrib/jsonb_plpython/meson.build
new file mode 100644
index 00000000000..aa372d52e26
--- /dev/null
+++ b/contrib/jsonb_plpython/meson.build
@@ -0,0 +1,33 @@
+if not python3.found()
+  subdir_done()
+endif
+
+jsonb_plpython_sources = files(
+  'jsonb_plpython.c',
+)
+
+jsonb_plpython = shared_module('jsonb_plpython3',
+  jsonb_plpython_sources,
+  include_directories: [plpython_inc],
+  kwargs: pg_mod_args + {
+    'c_args': ['-DPLPYTHON_LIBNAME="plpython3"'] + contrib_mod_args['c_args'],
+    'dependencies': [python3, contrib_mod_args['dependencies']],
+  },
+)
+
+install_data(
+  'jsonb_plpython3u.control',
+  'jsonb_plpython3u--1.0.sql',
+  kwargs: contrib_data_args,
+)
+
+jsonb_plpython_regress = [
+  'jsonb_plpython'
+]
+
+regress_tests += {
+  'name': 'jsonb_plpython',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': jsonb_plpython_regress,
+}
diff --git a/contrib/lo/meson.build b/contrib/lo/meson.build
new file mode 100644
index 00000000000..ca9bbc42015
--- /dev/null
+++ b/contrib/lo/meson.build
@@ -0,0 +1,24 @@
+lo_sources = files(
+  'lo.c',
+)
+
+lo = shared_module('lo',
+  lo_sources,
+  kwargs: contrib_mod_args,
+)
+
+install_data(
+  'lo.control',
+  'lo--1.0--1.1.sql',
+  'lo--1.1.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'lo',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'lo'
+  ],
+}
diff --git a/contrib/ltree/meson.build b/contrib/ltree/meson.build
new file mode 100644
index 00000000000..12909945350
--- /dev/null
+++ b/contrib/ltree/meson.build
@@ -0,0 +1,36 @@
+ltree_sources = files(
+  '_ltree_gist.c',
+  '_ltree_op.c',
+  'crc32.c',
+  'lquery_op.c',
+  'ltree_gist.c',
+  'ltree_io.c',
+  'ltree_op.c',
+  'ltxtquery_io.c',
+  'ltxtquery_op.c',
+)
+
+# .. so that includes of ltree/ltree.h work
+ltree_inc = include_directories('.', '../')
+
+ltree = shared_module('ltree',
+  ltree_sources,
+  kwargs: contrib_mod_args,
+)
+
+install_data(
+  'ltree.control',
+  'ltree--1.0--1.1.sql',
+  'ltree--1.1--1.2.sql',
+  'ltree--1.1.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'ltree',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'ltree'
+  ],
+}
diff --git a/contrib/ltree_plpython/meson.build b/contrib/ltree_plpython/meson.build
new file mode 100644
index 00000000000..df30c84c6a9
--- /dev/null
+++ b/contrib/ltree_plpython/meson.build
@@ -0,0 +1,34 @@
+if not python3.found()
+  subdir_done()
+endif
+
+ltree_plpython_sources = files(
+  'ltree_plpython.c',
+)
+
+ltree_plpython = shared_module('ltree_plpython3',
+  ltree_plpython_sources,
+  include_directories: [plpython_inc, ltree_inc],
+  kwargs: pg_mod_args + {
+    'c_args': ['-DPLPYTHON_LIBNAME="plpython3"'] + contrib_mod_args['c_args'],
+    'dependencies': [python3, contrib_mod_args['dependencies']],
+  },
+)
+
+install_data(
+  'ltree_plpython3u--1.0.sql',
+  'ltree_plpython3u.control',
+  kwargs: contrib_data_args,
+)
+
+ltree_plpython_regress = [
+  'ltree_plpython'
+]
+
+regress_tests += {
+  'name': 'ltree_plpython',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': ltree_plpython_regress,
+  'regress_args': ['--load-extension=ltree'],
+}
diff --git a/contrib/meson.build b/contrib/meson.build
new file mode 100644
index 00000000000..720181023c8
--- /dev/null
+++ b/contrib/meson.build
@@ -0,0 +1,63 @@
+contrib_mod_args = pg_mod_args
+
+contrib_data_dir = get_option('datadir') / 'extension'
+contrib_data_args = {
+  'install_dir': contrib_data_dir
+}
+
+subdir('adminpack')
+subdir('amcheck')
+subdir('auth_delay')
+subdir('auto_explain')
+subdir('bloom')
+subdir('bool_plperl')
+subdir('btree_gin')
+subdir('btree_gist')
+subdir('citext')
+subdir('cube')
+subdir('dblink')
+subdir('dict_int')
+subdir('dict_xsyn')
+subdir('earthdistance')
+subdir('file_fdw')
+subdir('fuzzystrmatch')
+subdir('hstore')
+subdir('hstore_plperl')
+subdir('hstore_plpython')
+subdir('intagg')
+subdir('intarray')
+subdir('isn')
+subdir('jsonb_plperl')
+subdir('jsonb_plpython')
+subdir('lo')
+subdir('ltree')
+subdir('ltree_plpython')
+subdir('oid2name')
+subdir('old_snapshot')
+subdir('pageinspect')
+subdir('passwordcheck')
+subdir('pg_buffercache')
+subdir('pgcrypto')
+subdir('pg_freespacemap')
+subdir('pg_prewarm')
+subdir('pgrowlocks')
+subdir('pg_stat_statements')
+subdir('pgstattuple')
+subdir('pg_surgery')
+subdir('pg_trgm')
+subdir('pg_visibility')
+subdir('postgres_fdw')
+subdir('seg')
+subdir('sepgsql')
+subdir('spi')
+subdir('sslinfo')
+# start-scripts doesn't contain build products
+subdir('tablefunc')
+subdir('tcn')
+subdir('test_decoding')
+subdir('tsm_system_rows')
+subdir('tsm_system_time')
+subdir('unaccent')
+subdir('uuid-ossp')
+subdir('vacuumlo')
+subdir('xml2')
diff --git a/contrib/oid2name/meson.build b/contrib/oid2name/meson.build
new file mode 100644
index 00000000000..bee34d2137c
--- /dev/null
+++ b/contrib/oid2name/meson.build
@@ -0,0 +1,14 @@
+executable('oid2name',
+  ['oid2name.c'],
+  dependencies: [frontend_code, libpq],
+  kwargs: default_bin_args,
+)
+
+tap_tests += {
+  'name' : 'oid2name',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'tests' :[
+    't/001_basic.pl',
+  ]
+}
diff --git a/contrib/old_snapshot/meson.build b/contrib/old_snapshot/meson.build
new file mode 100644
index 00000000000..5785c29e9f8
--- /dev/null
+++ b/contrib/old_snapshot/meson.build
@@ -0,0 +1,14 @@
+old_snapshot_sources = files(
+  'time_mapping.c',
+)
+
+old_snapshot = shared_module('old_snapshot',
+  old_snapshot_sources,
+  kwargs: contrib_mod_args,
+)
+
+install_data(
+  'old_snapshot.control',
+  'old_snapshot--1.0.sql',
+  kwargs: contrib_data_args,
+)
diff --git a/contrib/pageinspect/meson.build b/contrib/pageinspect/meson.build
new file mode 100644
index 00000000000..4bd5b1784e0
--- /dev/null
+++ b/contrib/pageinspect/meson.build
@@ -0,0 +1,45 @@
+pageinspect = shared_module('pageinspect',
+  files(
+    'brinfuncs.c',
+    'btreefuncs.c',
+    'fsmfuncs.c',
+    'ginfuncs.c',
+    'gistfuncs.c',
+    'hashfuncs.c',
+    'heapfuncs.c',
+    'rawpage.c',
+  ),
+  kwargs: contrib_mod_args,
+)
+
+install_data(
+  'pageinspect--1.0--1.1.sql',
+  'pageinspect--1.1--1.2.sql',
+  'pageinspect--1.2--1.3.sql',
+  'pageinspect--1.3--1.4.sql',
+  'pageinspect--1.4--1.5.sql',
+  'pageinspect--1.5--1.6.sql',
+  'pageinspect--1.5.sql',
+  'pageinspect--1.6--1.7.sql',
+  'pageinspect--1.7--1.8.sql',
+  'pageinspect--1.8--1.9.sql',
+  'pageinspect--1.9--1.10.sql',
+  'pageinspect.control',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'pageinspect',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'page',
+    'btree',
+    'brin',
+    'gin',
+    'gist',
+    'hash',
+    'checksum',
+    'oldextversions',
+  ],
+}
diff --git a/contrib/passwordcheck/meson.build b/contrib/passwordcheck/meson.build
new file mode 100644
index 00000000000..ae5db94d0e1
--- /dev/null
+++ b/contrib/passwordcheck/meson.build
@@ -0,0 +1,27 @@
+passwordcheck_sources = files(
+  'passwordcheck.c',
+)
+
+passwordcheck_c_args = []
+passwordcheck_deps = []
+
+# uncomment the following two lines to enable cracklib support
+# passwordcheck_c_args += ['-DUSE_CRACKLIB', '-DCRACKLIB_DICTPATH="/usr/lib/cracklib_dict"']
+# passwordcheck_deps += [cc.find_library('crack')]
+
+passwordcheck = shared_module('passwordcheck',
+  passwordcheck_sources,
+  kwargs: contrib_mod_args + {
+    'c_args': contrib_mod_args.get('c_args') + passwordcheck_c_args,
+    'dependencies': contrib_mod_args.get('dependencies') + passwordcheck_deps,
+  }
+)
+
+regress_tests += {
+  'name': 'passwordcheck',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'passwordcheck'
+  ],
+}
diff --git a/contrib/pg_buffercache/meson.build b/contrib/pg_buffercache/meson.build
new file mode 100644
index 00000000000..f4f540218b6
--- /dev/null
+++ b/contrib/pg_buffercache/meson.build
@@ -0,0 +1,16 @@
+pg_buffercache = shared_module('pg_buffercache',
+  files(
+    'pg_buffercache_pages.c',
+  ),
+  c_pch: '../../src/include/pch/postgres_pch.h',
+  kwargs: contrib_mod_args,
+)
+
+install_data(
+  'pg_buffercache--1.0--1.1.sql',
+  'pg_buffercache--1.1--1.2.sql',
+  'pg_buffercache--1.2--1.3.sql',
+  'pg_buffercache--1.2.sql',
+  'pg_buffercache.control',
+  kwargs: contrib_data_args,
+)
diff --git a/contrib/pg_freespacemap/meson.build b/contrib/pg_freespacemap/meson.build
new file mode 100644
index 00000000000..feb1e225f48
--- /dev/null
+++ b/contrib/pg_freespacemap/meson.build
@@ -0,0 +1,15 @@
+pg_freespacemap = shared_module('pg_freespacemap',
+  files(
+    'pg_freespacemap.c',
+  ),
+  c_pch: '../../src/include/pch/postgres_pch.h',
+  kwargs: contrib_mod_args,
+)
+
+install_data(
+  'pg_freespacemap--1.0--1.1.sql',
+  'pg_freespacemap--1.1--1.2.sql',
+  'pg_freespacemap--1.1.sql',
+  'pg_freespacemap.control',
+  kwargs: contrib_data_args,
+)
diff --git a/contrib/pg_prewarm/meson.build b/contrib/pg_prewarm/meson.build
new file mode 100644
index 00000000000..c93ccc2db6d
--- /dev/null
+++ b/contrib/pg_prewarm/meson.build
@@ -0,0 +1,16 @@
+pg_prewarm = shared_module('pg_prewarm',
+  files(
+    'autoprewarm.c',
+    'pg_prewarm.c',
+  ),
+  c_pch: '../../src/include/pch/postgres_pch.h',
+  kwargs: contrib_mod_args,
+)
+
+install_data(
+  'pg_prewarm--1.0--1.1.sql',
+  'pg_prewarm--1.1--1.2.sql',
+  'pg_prewarm--1.1.sql',
+  'pg_prewarm.control',
+  kwargs: contrib_data_args,
+)
diff --git a/contrib/pg_stat_statements/meson.build b/contrib/pg_stat_statements/meson.build
new file mode 100644
index 00000000000..6ed70ac0f18
--- /dev/null
+++ b/contrib/pg_stat_statements/meson.build
@@ -0,0 +1,31 @@
+pg_stat_statements = shared_module('pg_stat_statements',
+  files('pg_stat_statements.c'),
+  kwargs: contrib_mod_args + {
+      'dependencies': contrib_mod_args['dependencies'],
+  },
+)
+
+install_data(
+  'pg_stat_statements.control',
+  'pg_stat_statements--1.4.sql',
+  'pg_stat_statements--1.8--1.9.sql',
+  'pg_stat_statements--1.7--1.8.sql',
+  'pg_stat_statements--1.6--1.7.sql',
+  'pg_stat_statements--1.5--1.6.sql',
+  'pg_stat_statements--1.4--1.5.sql',
+  'pg_stat_statements--1.3--1.4.sql',
+  'pg_stat_statements--1.2--1.3.sql',
+  'pg_stat_statements--1.1--1.2.sql',
+  'pg_stat_statements--1.0--1.1.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'pg_stat_statements',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'pg_stat_statements'
+  ],
+  'regress_args': ['--temp-config', files('pg_stat_statements.conf')],
+}
diff --git a/contrib/pg_surgery/meson.build b/contrib/pg_surgery/meson.build
new file mode 100644
index 00000000000..58de871b041
--- /dev/null
+++ b/contrib/pg_surgery/meson.build
@@ -0,0 +1,23 @@
+pg_surgery = shared_module('pg_surgery',
+  files(
+    'heap_surgery.c',
+  ),
+  c_pch: '../../src/include/pch/postgres_pch.h',
+  kwargs: contrib_mod_args,
+)
+
+install_data(
+  'pg_surgery--1.0.sql',
+  'pg_surgery.control',
+  kwargs: contrib_data_args,
+)
+
+
+regress_tests += {
+  'name': 'pg_surgery',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'heap_surgery'
+  ],
+}
diff --git a/contrib/pg_trgm/meson.build b/contrib/pg_trgm/meson.build
new file mode 100644
index 00000000000..0a56926ad6b
--- /dev/null
+++ b/contrib/pg_trgm/meson.build
@@ -0,0 +1,33 @@
+pg_trgm = shared_module('pg_trgm',
+  files(
+    'trgm_gin.c',
+    'trgm_gist.c',
+    'trgm_op.c',
+    'trgm_regexp.c',
+  ),
+  c_pch: '../../src/include/pch/postgres_pch.h',
+  kwargs: contrib_mod_args,
+)
+
+install_data(
+  'pg_trgm--1.0--1.1.sql',
+  'pg_trgm--1.1--1.2.sql',
+  'pg_trgm--1.2--1.3.sql',
+  'pg_trgm--1.3--1.4.sql',
+  'pg_trgm--1.3.sql',
+  'pg_trgm--1.4--1.5.sql',
+  'pg_trgm--1.5--1.6.sql',
+  'pg_trgm.control',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'pg_trgm',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'pg_trgm',
+    'pg_word_trgm',
+    'pg_strict_word_trgm',
+  ],
+}
diff --git a/contrib/pg_visibility/meson.build b/contrib/pg_visibility/meson.build
new file mode 100644
index 00000000000..5fd0e8cd986
--- /dev/null
+++ b/contrib/pg_visibility/meson.build
@@ -0,0 +1,25 @@
+pg_visibility = shared_module('pg_visibility',
+  files(
+    'pg_visibility.c',
+  ),
+  c_pch: '../../src/include/pch/postgres_pch.h',
+  kwargs: contrib_mod_args,
+)
+
+install_data(
+  'pg_visibility--1.0--1.1.sql',
+  'pg_visibility--1.1--1.2.sql',
+  'pg_visibility--1.1.sql',
+  'pg_visibility.control',
+  kwargs: contrib_data_args,
+)
+
+
+regress_tests += {
+  'name': 'pg_visibility',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'pg_visibility'
+  ],
+}
diff --git a/contrib/pgcrypto/meson.build b/contrib/pgcrypto/meson.build
new file mode 100644
index 00000000000..f20076b84a0
--- /dev/null
+++ b/contrib/pgcrypto/meson.build
@@ -0,0 +1,117 @@
+pgcrypto_sources = files(
+  'crypt-blowfish.c',
+  'crypt-des.c',
+  'crypt-gensalt.c',
+  'crypt-md5.c',
+  'mbuf.c',
+  'pgcrypto.c',
+  'pgp-armor.c',
+  'pgp-cfb.c',
+  'pgp-compress.c',
+  'pgp-decrypt.c',
+  'pgp-encrypt.c',
+  'pgp-info.c',
+  'pgp-mpi.c',
+  'pgp-pgsql.c',
+  'pgp-pubdec.c',
+  'pgp-pubenc.c',
+  'pgp-pubkey.c',
+  'pgp-s2k.c',
+  'pgp.c',
+  'px-crypt.c',
+  'px-hmac.c',
+  'px.c',
+)
+
+pgcrypto_regress = [
+  'init',
+  'md5',
+  'sha1',
+  'hmac-md5',
+  'hmac-sha1',
+  'blowfish',
+  'rijndael',
+  'crypt-des',
+  'crypt-md5',
+  'crypt-blowfish',
+  'crypt-xdes',
+  'pgp-armor',
+  'pgp-decrypt',
+  'pgp-encrypt',
+  'pgp-pubkey-decrypt',
+  'pgp-pubkey-encrypt',
+  'pgp-info',
+]
+
+
+pgcrypto_internal_sources = files(
+  'internal.c',
+  'internal-sha2.c',
+  'blf.c',
+  'rijndael.c',
+  'pgp-mpi-internal.c',
+  'imath.c',
+)
+
+pgcrypto_internal_regress = [
+  'sha2',
+]
+
+
+pgcrypto_openssl_sources = files(
+  'openssl.c',
+  'pgp-mpi-openssl.c',
+)
+pgcrypto_openssl_regress = [
+  'sha2',
+  'des',
+  '3des',
+  'cast5',
+]
+
+# TODO: implement rijndael.c generation
+
+pgcrypto_deps = []
+if ssl.found()
+  pgcrypto_deps += ssl
+  pgcrypto_sources += pgcrypto_openssl_sources
+  pgcrypto_regress += pgcrypto_openssl_regress
+else
+  pgcrypto_sources += pgcrypto_internal_sources
+  pgcrypto_regress += pgcrypto_internal_regress
+endif
+
+if zlib.found()
+  pgcrypto_deps += zlib
+  pgcrypto_regress += 'pgp-compression'
+else
+  pgcrypto_regress += 'pgp-zlib-DISABLED'
+endif
+
+pgcrypto = shared_module('pgcrypto',
+  pgcrypto_sources,
+  c_pch: '../../src/include/pch/postgres_pch.h',
+  kwargs: contrib_mod_args + {
+    'dependencies': [pgcrypto_deps, contrib_mod_args['dependencies']]
+  },
+)
+
+install_data(
+  'pgcrypto--1.0--1.1.sql',
+  'pgcrypto--1.1--1.2.sql',
+  'pgcrypto--1.2--1.3.sql',
+  'pgcrypto--1.3.sql',
+  'pgcrypto.control',
+  kwargs: contrib_data_args,
+)
+
+
+regress_tests += {
+  'name': 'pgcrypto',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    pgcrypto_regress
+  ],
+}
+
diff --git a/contrib/pgrowlocks/meson.build b/contrib/pgrowlocks/meson.build
new file mode 100644
index 00000000000..26c68248fce
--- /dev/null
+++ b/contrib/pgrowlocks/meson.build
@@ -0,0 +1,15 @@
+pgrowlocks = shared_module('pgrowlocks',
+  files(
+    'pgrowlocks.c',
+  ),
+  c_pch: '../../src/include/pch/postgres_pch.h',
+  kwargs: contrib_mod_args,
+)
+
+install_data(
+  'pgrowlocks--1.0--1.1.sql',
+  'pgrowlocks--1.1--1.2.sql',
+  'pgrowlocks--1.2.sql',
+  'pgrowlocks.control',
+  kwargs: contrib_data_args,
+)
diff --git a/contrib/pgstattuple/meson.build b/contrib/pgstattuple/meson.build
new file mode 100644
index 00000000000..4ed41b3743c
--- /dev/null
+++ b/contrib/pgstattuple/meson.build
@@ -0,0 +1,30 @@
+pgstattuple = shared_module('pgstattuple',
+  files(
+    'pgstatapprox.c',
+    'pgstatindex.c',
+    'pgstattuple.c',
+  ),
+  c_pch: '../../src/include/pch/postgres_pch.h',
+  kwargs: contrib_mod_args,
+)
+
+install_data(
+  'pgstattuple--1.0--1.1.sql',
+  'pgstattuple--1.1--1.2.sql',
+  'pgstattuple--1.2--1.3.sql',
+  'pgstattuple--1.3--1.4.sql',
+  'pgstattuple--1.4--1.5.sql',
+  'pgstattuple--1.4.sql',
+  'pgstattuple.control',
+  kwargs: contrib_data_args,
+)
+
+
+regress_tests += {
+  'name': 'pgstattuple',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'pgstattuple'
+  ],
+}
diff --git a/contrib/postgres_fdw/meson.build b/contrib/postgres_fdw/meson.build
new file mode 100644
index 00000000000..507d01448b1
--- /dev/null
+++ b/contrib/postgres_fdw/meson.build
@@ -0,0 +1,31 @@
+postgres_fdw_sources = files(
+  'connection.c',
+  'deparse.c',
+  'option.c',
+  'postgres_fdw.c',
+  'shippable.c',
+)
+
+postgres_fdw = shared_module('postgres_fdw',
+  postgres_fdw_sources,
+  kwargs: contrib_mod_args + {
+      'dependencies': pg_mod_args['dependencies'] + [libpq],
+  },
+)
+
+install_data(
+  'postgres_fdw.control',
+  'postgres_fdw--1.0.sql',
+  'postgres_fdw--1.0--1.1.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'postgres_fdw',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'postgres_fdw'
+  ],
+  'regress_args': ['--dlpath', meson.build_root() / 'src/test/regress'],
+}
diff --git a/contrib/seg/meson.build b/contrib/seg/meson.build
new file mode 100644
index 00000000000..a66a4b4c218
--- /dev/null
+++ b/contrib/seg/meson.build
@@ -0,0 +1,40 @@
+seg_sources = files(
+  'seg.c',
+)
+
+# segscan is compiled as part of segparse
+segscan = custom_target('segscan',
+  input: ['segscan.l'],
+  output: ['segscan.c'],
+  command: [flex, '-o', '@OUTPUT@', '@INPUT@'])
+
+seg_sources += custom_target('segparse',
+  input: 'segparse.y',
+  output: 'segparse.c',
+  depends: segscan,
+  command: [bison, bisonflags, '-o', '@OUTPUT@', '@INPUT0@'])
+
+seg = shared_module('seg',
+  seg_sources,
+  include_directories: include_directories('.'),
+  kwargs: contrib_mod_args,
+)
+
+install_data(
+  'seg.control',
+  'seg--1.0--1.1.sql',
+  'seg--1.1--1.2.sql',
+  'seg--1.1.sql',
+  'seg--1.2--1.3.sql',
+  'seg--1.3--1.4.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'seg',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'seg',
+  ],
+}
diff --git a/contrib/sepgsql/meson.build b/contrib/sepgsql/meson.build
new file mode 100644
index 00000000000..852c6740569
--- /dev/null
+++ b/contrib/sepgsql/meson.build
@@ -0,0 +1,34 @@
+if not selinux.found()
+  subdir_done()
+endif
+
+sepgsql_sources = files(
+  'database.c',
+  'dml.c',
+  'hooks.c',
+  'label.c',
+  'proc.c',
+  'relation.c',
+  'schema.c',
+  'selinux.c',
+  'uavc.c',
+)
+
+sepgsql = shared_module('sepgsql',
+  sepgsql_sources,
+  c_pch: '../../src/include/pch/postgres_pch.h',
+  kwargs: contrib_mod_args + {
+    'dependencies': [selinux, pg_mod_args['dependencies']],
+  }
+)
+
+custom_target('sepgsql.sql',
+  input: 'sepgsql.sql.in',
+  output: 'sepgsql.sql',
+  command: [sed, '-e', 's,MODULE_PATHNAME,$libdir/sepgsql,g', '@INPUT@'],
+  capture: true,
+  install: true,
+  install_dir: contrib_data_args['install_dir'],
+)
+
+# TODO: implement sepgsql tests
diff --git a/contrib/spi/meson.build b/contrib/spi/meson.build
new file mode 100644
index 00000000000..51bc96ea657
--- /dev/null
+++ b/contrib/spi/meson.build
@@ -0,0 +1,43 @@
+autoinc = shared_module('autoinc',
+  ['autoinc.c'],
+  kwargs: contrib_mod_args,
+)
+
+install_data('autoinc.control', 'autoinc--1.0.sql',
+  kwargs: contrib_data_args,
+)
+
+
+insert_username = shared_module('insert_username',
+  ['insert_username.c'],
+  kwargs: contrib_mod_args,
+)
+
+install_data('insert_username.control', 'insert_username--1.0.sql',
+  install_dir: get_option('datadir') / 'extension'
+)
+
+
+moddatetime = shared_module('moddatetime',
+  ['moddatetime.c'],
+  kwargs: contrib_mod_args,
+)
+
+install_data('moddatetime.control', 'moddatetime--1.0.sql',
+  install_dir: get_option('datadir') / 'extension'
+)
+
+# this is needed for the regression tests;
+# comment out if you want a quieter refint package for other uses
+refint_cflags = ['-DREFINT_VERBOSE']
+
+refint = shared_module('refint',
+  ['refint.c'],
+  kwargs: contrib_mod_args + {
+    'c_args': refint_cflags + contrib_mod_args['c_args'],
+  },
+)
+
+install_data('refint.control', 'refint--1.0.sql',
+  kwargs: contrib_data_args,
+)
diff --git a/contrib/sslinfo/meson.build b/contrib/sslinfo/meson.build
new file mode 100644
index 00000000000..27ee59d62d5
--- /dev/null
+++ b/contrib/sslinfo/meson.build
@@ -0,0 +1,21 @@
+if not ssl.found()
+  subdir_done()
+endif
+
+sslinfo = shared_module('sslinfo',
+  files(
+    'sslinfo.c',
+  ),
+  c_pch: '../../src/include/pch/postgres_pch.h',
+  kwargs: contrib_mod_args + {
+    'dependencies': [ssl, pg_mod_args['dependencies']],
+  }
+)
+
+install_data(
+  'sslinfo--1.0--1.1.sql',
+  'sslinfo--1.1--1.2.sql',
+  'sslinfo--1.2.sql',
+  'sslinfo.control',
+  kwargs: contrib_data_args,
+)
diff --git a/contrib/tablefunc/meson.build b/contrib/tablefunc/meson.build
new file mode 100644
index 00000000000..955b1ae6795
--- /dev/null
+++ b/contrib/tablefunc/meson.build
@@ -0,0 +1,23 @@
+tablefunc = shared_module('tablefunc',
+  files(
+    'tablefunc.c',
+  ),
+  c_pch: '../../src/include/pch/postgres_pch.h',
+  kwargs: contrib_mod_args,
+)
+
+install_data(
+  'tablefunc--1.0.sql',
+  'tablefunc.control',
+  kwargs: contrib_data_args,
+)
+
+
+regress_tests += {
+  'name': 'tablefunc',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'tablefunc'
+  ],
+}
diff --git a/contrib/tcn/meson.build b/contrib/tcn/meson.build
new file mode 100644
index 00000000000..b3a663f64bc
--- /dev/null
+++ b/contrib/tcn/meson.build
@@ -0,0 +1,13 @@
+tcn = shared_module('tcn',
+  files(
+    'tcn.c',
+  ),
+  c_pch: '../../src/include/pch/postgres_pch.h',
+  kwargs: contrib_mod_args,
+)
+
+install_data(
+  'tcn--1.0.sql',
+  'tcn.control',
+  kwargs: contrib_data_args,
+)
diff --git a/contrib/test_decoding/meson.build b/contrib/test_decoding/meson.build
new file mode 100644
index 00000000000..d26b43cbe79
--- /dev/null
+++ b/contrib/test_decoding/meson.build
@@ -0,0 +1,69 @@
+test_decoding_sources = files(
+  'test_decoding.c',
+)
+
+test_decoding = shared_module('test_decoding',
+  test_decoding_sources,
+  kwargs: contrib_mod_args,
+)
+
+
+regress_tests += {
+  'name': 'test_decoding',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'ddl',
+    'xact',
+    'rewrite',
+    'toast',
+    'permissions',
+    'decoding_in_xact',
+    'decoding_into_rel',
+    'binary',
+    'prepared',
+    'replorigin',
+    'time',
+    'messages',
+    'spill',
+    'slot',
+    'truncate',
+    'stream',
+    'stats',
+    'twophase',
+    'twophase_stream',
+  ],
+  'regress_args': [
+    '--temp-config', files('logical.conf')
+  ]
+}
+
+isolation_tests += {
+  'name': 'test_decoding',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'specs': [
+    'mxact',
+    'delayed_startup',
+    'ondisk_startup',
+    'concurrent_ddl_dml',
+    'oldest_xmin',
+    'snapshot_transfer',
+    'subxact_without_top',
+    'concurrent_stream',
+    'twophase_snapshot',
+  ],
+  'regress_args': [
+    '--temp-config', files('logical.conf')
+  ]
+}
+
+
+tap_tests += {
+  'name': 'test_decoding',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'tests': [
+    't/001_repl_stats.pl',
+  ],
+}
diff --git a/contrib/tsm_system_rows/meson.build b/contrib/tsm_system_rows/meson.build
new file mode 100644
index 00000000000..2c8f4487f8d
--- /dev/null
+++ b/contrib/tsm_system_rows/meson.build
@@ -0,0 +1,22 @@
+tsm_system_rows = shared_module('tsm_system_rows',
+  files(
+    'tsm_system_rows.c',
+  ),
+  c_pch: '../../src/include/pch/postgres_pch.h',
+  kwargs: contrib_mod_args,
+)
+
+install_data(
+  'tsm_system_rows--1.0.sql',
+  'tsm_system_rows.control',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'tsm_system_rows',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'tsm_system_rows',
+  ],
+}
diff --git a/contrib/tsm_system_time/meson.build b/contrib/tsm_system_time/meson.build
new file mode 100644
index 00000000000..df9c4aa4b51
--- /dev/null
+++ b/contrib/tsm_system_time/meson.build
@@ -0,0 +1,22 @@
+tsm_system_time = shared_module('tsm_system_time',
+  files(
+    'tsm_system_time.c',
+  ),
+  c_pch: '../../src/include/pch/postgres_pch.h',
+  kwargs: contrib_mod_args,
+)
+
+install_data(
+  'tsm_system_time--1.0.sql',
+  'tsm_system_time.control',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'tsm_system_time',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'tsm_system_time',
+  ],
+}
diff --git a/contrib/unaccent/meson.build b/contrib/unaccent/meson.build
new file mode 100644
index 00000000000..e77bf790d8c
--- /dev/null
+++ b/contrib/unaccent/meson.build
@@ -0,0 +1,30 @@
+unaccent = shared_module('unaccent',
+  files(
+    'unaccent.c',
+  ),
+  c_pch: '../../src/include/pch/postgres_pch.h',
+  kwargs: contrib_mod_args,
+)
+
+install_data(
+  'unaccent--1.0--1.1.sql',
+  'unaccent--1.1.sql',
+  'unaccent.control',
+  kwargs: contrib_data_args,
+)
+
+install_data(
+  'unaccent.rules',
+   install_dir: get_option('datadir') / 'tsearch_data'
+)
+
+# XXX: Implement downlo
+regress_tests += {
+  'name': 'unaccent',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'unaccent',
+  ],
+  'regress_args': ['--encoding=UTF8'],
+}
diff --git a/contrib/uuid-ossp/meson.build b/contrib/uuid-ossp/meson.build
new file mode 100644
index 00000000000..dad1ec228bd
--- /dev/null
+++ b/contrib/uuid-ossp/meson.build
@@ -0,0 +1,31 @@
+if not uuid.found()
+  subdir_done()
+endif
+
+uuid_ossp = shared_module('uuid-ossp',
+  files(
+    'uuid-ossp.c',
+  ),
+  c_pch: '../../src/include/pch/postgres_pch.h',
+  kwargs: contrib_mod_args + {
+    'dependencies': [uuid, pg_mod_args['dependencies']],
+  },
+
+)
+
+install_data(
+  'uuid-ossp--1.0--1.1.sql',
+  'uuid-ossp--1.1.sql',
+  'uuid-ossp.control',
+  kwargs: contrib_data_args,
+)
+
+
+regress_tests += {
+  'name': 'uuid-ossp',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'uuid_ossp'
+  ],
+}
diff --git a/contrib/vacuumlo/meson.build b/contrib/vacuumlo/meson.build
new file mode 100644
index 00000000000..99e76daacf9
--- /dev/null
+++ b/contrib/vacuumlo/meson.build
@@ -0,0 +1,14 @@
+executable('vacuumlo',
+  ['vacuumlo.c'],
+  dependencies: [frontend_code, libpq],
+  kwargs: default_bin_args,
+)
+
+tap_tests += {
+  'name' : 'vacuumlo',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'tests' :[
+    't/001_basic.pl',
+  ]
+}
diff --git a/contrib/xml2/meson.build b/contrib/xml2/meson.build
new file mode 100644
index 00000000000..6f8a26e4f0a
--- /dev/null
+++ b/contrib/xml2/meson.build
@@ -0,0 +1,30 @@
+if not libxml.found()
+  subdir_done()
+endif
+
+xml2 = shared_module('pgxml',
+  files(
+    'xpath.c',
+    'xslt_proc.c',
+  ),
+  c_pch: '../../src/include/pch/postgres_pch.h',
+  kwargs: contrib_mod_args + {
+    'dependencies': [libxml, libxslt, contrib_mod_args['dependencies']],
+  },
+)
+
+install_data(
+  'xml2--1.0--1.1.sql',
+  'xml2--1.1.sql',
+  'xml2.control',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'xml2',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'xml2',
+  ],
+}
diff --git a/conversion_helpers.txt b/conversion_helpers.txt
new file mode 100644
index 00000000000..e5879b4fe77
--- /dev/null
+++ b/conversion_helpers.txt
@@ -0,0 +1,6 @@
+convert list of files to quoted-one-per-line:
+
+	?\b\(\(?:\w\|\d\|_\|-\)+\)\.o ?\(?:\\
+\)? →   '\1.c',
+
+
diff --git a/doc/src/sgml/meson.build b/doc/src/sgml/meson.build
new file mode 100644
index 00000000000..4576e20a189
--- /dev/null
+++ b/doc/src/sgml/meson.build
@@ -0,0 +1,241 @@
+alldocs = []
+doc_generated = []
+
+xmllint = find_program('xmllint', native: true, required: false)
+pandoc = find_program('pandoc', native: true, required: false)
+xsltproc = find_program('xsltproc', native: true, required: false)
+fop = find_program('fop', native: true, required: false)
+
+
+configure_file(
+  input: 'version.sgml.in',
+  output: 'version.sgml',
+  configuration: cdata,
+)
+
+doc_generated += custom_target('features-supported.sgml',
+  input: files(
+    '../../../src/backend/catalog/sql_feature_packages.txt',
+    '../../../src/backend/catalog/sql_features.txt'),
+  output: 'features-supported.sgml',
+  command: [perl, files('mk_feature_tables.pl'), 'YES', '@INPUT@'],
+  build_by_default: false,
+  install: false,
+  capture: true)
+
+doc_generated += custom_target('features-unsupported.sgml',
+  input: files(
+    '../../../src/backend/catalog/sql_feature_packages.txt',
+    '../../../src/backend/catalog/sql_features.txt'),
+  output: 'features-unsupported.sgml',
+  command: [perl, files('mk_feature_tables.pl'), 'NO', '@INPUT@'],
+  build_by_default: false,
+  install: false,
+  capture: true)
+
+doc_generated += custom_target('errcodes-table.sgml',
+  input: files(
+    '../../../src/backend/utils/errcodes.txt'),
+  output: 'errcodes-table.sgml',
+  command: [perl, files('generate-errcodes-table.pl'), '@INPUT@'],
+  build_by_default: false,
+  install: false,
+  capture: true)
+
+# FIXME: this actually has further inputs, adding depfile support to
+# generate-keywords-table.pl is probably the best way to address that
+# robustly.
+doc_generated += custom_target('keywords-table.sgml',
+  input: files(
+    '../../../src/include/parser/kwlist.h'),
+  output: 'keywords-table.sgml',
+  command: [perl, files('generate-keywords-table.pl'), '@CURRENT_SOURCE_DIR@'],
+  build_by_default: false,
+  install: false,
+  capture: true)
+
+# For everything else we need at least xmllint
+if not xmllint.found()
+  subdir_done()
+endif
+
+# Compute validity just once
+postgres_sgml_valid = custom_target('postgres.sgml.valid',
+  input: 'postgres.sgml',
+  output: 'postgres.sgml.valid',
+  command: [xmllint, '--noout', '--valid', '--path', '@OUTDIR@'],
+  build_by_default: true,
+  capture: true,
+)
+alldocs += postgres_sgml_valid
+
+
+#
+# Full documentation as html, text
+#
+if xsltproc.found()
+  xsltproc_flags = [
+    '--stringparam', 'pg.version', pg_version,
+    '--param', 'website.stylesheet', '1'
+  ]
+
+
+  # FIXME: Should use a wrapper around xsltproc --load-trace to compute a
+  # depfile
+  html = custom_target('html',
+    input: ['stylesheet.xsl', 'postgres.sgml'],
+    output: 'html',
+    depends: doc_generated + [postgres_sgml_valid],
+    command: [xsltproc, '--path', '@OUTDIR@', '-o', '@OUTDIR@/', xsltproc_flags, '@INPUT@'],
+    build_by_default: false,
+  )
+  alldocs += html
+
+
+  html_help = custom_target('html_help',
+    input: ['stylesheet-hh.xsl', 'postgres.sgml'],
+    output: 'htmlhelp',
+    depends: doc_generated + [postgres_sgml_valid],
+    command: [xsltproc, '--path', '@OUTDIR@', '-o', '@OUTDIR@/', xsltproc_flags, '@INPUT@'],
+    build_by_default: false,
+  )
+  alldocs += html_help
+
+
+  # single-page HTML
+  postgres_html = custom_target('postgres.html',
+    input: ['stylesheet-html-nochunk.xsl', 'postgres.sgml'],
+    output: 'postgres.html',
+    depends: doc_generated + [postgres_sgml_valid],
+    command: [xsltproc, '--path', '@OUTDIR@', '-o', '@OUTPUT@', xsltproc_flags, '@INPUT@'],
+    build_by_default: false,
+  )
+  alldocs += postgres_html
+
+  # single-page text
+  if pandoc.found()
+    postgres_txt = custom_target('postgres.txt',
+      input: [postgres_html],
+      output: 'postgres.txt',
+      depends: doc_generated + [postgres_sgml_valid],
+      command: [pandoc, '-t', 'plain', '-o', '@OUTPUT@', '@INPUT@'],
+      build_by_default: false,
+    )
+    alldocs += postgres_txt
+  endif
+endif
+
+
+#
+# INSTALL in html, text
+#
+if xsltproc.found()
+  install_xml = custom_target('INSTALL.xml',
+    input: ['standalone-profile.xsl', 'standalone-install.xml'],
+    output: 'INSTALL.xml',
+    depends: doc_generated + [postgres_sgml_valid],
+    command: [xsltproc, '--path', '@OUTDIR@', '-o', '@OUTPUT@', xsltproc_flags, '--xinclude', '@INPUT@'],
+    build_by_default: false,
+  )
+  install_html = custom_target('INSTALL.html',
+    input: ['stylesheet-text.xsl', install_xml],
+    output: 'INSTALL.html',
+    depends: doc_generated + [postgres_sgml_valid],
+    command: [xsltproc, '--path', '@OUTDIR@', '-o', '@OUTPUT@', xsltproc_flags, '@INPUT@'],
+    build_by_default: false,
+  )
+  alldocs += install_html
+
+  if pandoc.found()
+    # XXX: Makefile does an iconv translit here, but unclear why?
+    install = custom_target('INSTALL',
+      input: [install_html],
+      output: 'INSTALL',
+      depends: doc_generated + [postgres_sgml_valid],
+      command: [pandoc, '-t', 'plain', '-o', '@OUTPUT@', '@INPUT@'],
+      build_by_default: false,
+    )
+    alldocs += postgres_txt
+  endif
+
+endif
+
+
+#
+# Man pages
+#
+if xsltproc.found()
+  # FIXME: implement / consider sqlmansectnum logic
+  man = custom_target('man',
+    input: ['stylesheet-man.xsl', 'postgres.sgml'],
+    output: ['man1', 'man3', 'man7'],
+    depends: doc_generated + [postgres_sgml_valid],
+    command: [xsltproc, '--path', '@OUTDIR@', '-o', '@OUTDIR@', xsltproc_flags, '@INPUT@'],
+    build_by_default: false,
+  )
+endif
+
+
+#
+# Full documentation as PDF
+#
+if fop.found() and xsltproc.found()
+  xsltproc_fo_flags = xsltproc_flags + ['--stringparam', 'img.src.path', meson.current_source_dir() + '/']
+
+  foreach format, detail: {'A4': 'A4', 'US': 'USletter'}
+    postgres_x_fo_f = 'postgres-@0@.fo'.format(format)
+    postgres_x_pdf_f = 'postgres-@0@.pdf'.format(format)
+
+    postgres_x_fo = custom_target(postgres_x_fo_f,
+      input: ['stylesheet-fo.xsl', 'postgres.sgml'],
+      output: [postgres_x_fo_f],
+      depends: doc_generated + [postgres_sgml_valid],
+      command: [xsltproc, '--path', '@OUTDIR@/', xsltproc_fo_flags,
+                '--stringparam', 'paper.type', detail,
+                '-o', '@OUTPUT@', '@INPUT@'],
+      build_by_default: false,
+    )
+
+    postgres_x_pdf = custom_target(postgres_x_pdf_f,
+      input: [postgres_x_fo],
+      output: [postgres_x_pdf_f],
+      command: [fop, '-fo', '@INPUT@', '-pdf', '@OUTPUT@'],
+      build_by_default: false,
+    )
+    alldocs += postgres_x_pdf
+  endforeach
+endif
+
+
+#
+# epub
+#
+
+# This was previously implemented using dbtoepub - but that doesn't seem to
+# support running in build != source directory (i.e. VPATH builds already
+# weren't supported).
+if pandoc.found() and xsltproc.found()
+  # XXX: Wasn't able to make pandoc successfully resolve entities
+  # XXX: Perhaps we should just make all targets use this, to avoid repeatedly
+  # building whole thing? It's comparatively fast though.
+  postgres_full_xml = custom_target('postgres-full.xml',
+    input: ['resolv.xsl', 'postgres.sgml'],
+    output: ['postgres-full.xml'],
+    depends: doc_generated + [postgres_sgml_valid],
+    command: [xsltproc, '--path', '@OUTDIR@/', xsltproc_flags,
+              '-o', '@OUTPUT@', '@INPUT@'],
+    build_by_default: false,
+  )
+
+  postgres_epub = custom_target('postgres.epub',
+    input: [postgres_full_xml],
+    output: 'postgres.epub',
+    command: [pandoc, '-f', 'docbook', '-t', 'epub', '-o', '@OUTPUT@', '--resource-path=@CURRENT_SOURCE_DIR@',
+              '@INPUT@'],
+    build_by_default: false,
+  )
+  alldocs += postgres_epub
+endif
+
+
+alias_target('alldocs', alldocs)
diff --git a/doc/src/sgml/resolv.xsl b/doc/src/sgml/resolv.xsl
new file mode 100644
index 00000000000..c69ba714dab
--- /dev/null
+++ b/doc/src/sgml/resolv.xsl
@@ -0,0 +1,7 @@
+<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
+  <xsl:template match="@*|node()">
+    <xsl:copy>
+      <xsl:apply-templates select="@*|node()"/>
+    </xsl:copy>
+  </xsl:template>
+</xsl:stylesheet>
diff --git a/doc/src/sgml/version.sgml.in b/doc/src/sgml/version.sgml.in
new file mode 100644
index 00000000000..fa5ff343f40
--- /dev/null
+++ b/doc/src/sgml/version.sgml.in
@@ -0,0 +1,2 @@
+<!ENTITY version @PG_VERSION@>
+<!ENTITY majorversion @PG_MAJORVERSION@>
diff --git a/meson.build b/meson.build
new file mode 100644
index 00000000000..4cf621f375b
--- /dev/null
+++ b/meson.build
@@ -0,0 +1,2130 @@
+project('postgresql',
+  ['c'],
+  version: '15devel',
+  license: 'PostgreSQL',
+  meson_version: '>=0.54',
+  default_options: [
+    'warning_level=2',
+    'b_pie=true',
+    'b_pch=false',
+    'buildtype=release',
+  ]
+)
+
+
+
+###############################################################
+# Basic prep
+###############################################################
+
+fs = import('fs')
+windows = import('windows')
+
+thread_dep = dependency('threads')
+
+cpu_family = host_machine.cpu_family()
+
+
+# It's very easy to get into confusing states when the source directory
+# contains an in-place build. E.g. the wrong pg_config.h will be used. So just
+# refuse to build in that case.
+if fs.exists(meson.current_source_dir() / 'src' / 'include' / 'pg_config.h')
+  error('''
+****
+Non-clean source code directory detected.
+
+To build with meson the source tree may not have an in-place, ./configure
+style, build configured. Use a separate check out for meson based builds, or
+run make distclean in the source tree.
+
+You can have both meson and ./configure style builds for the same source tree
+by building out-of-source / VPATH with configure as well.
+****
+''')
+endif
+
+
+
+###############################################################
+# Version and other metadata
+###############################################################
+
+pg_version = meson.project_version()
+
+if pg_version.endswith('devel')
+  pg_version_arr = [pg_version.split('devel')[0], '0']
+elif pg_version.contains('beta')
+  pg_version_arr = pg_version.split('beta')
+elif pg_version.contains('rc')
+  pg_version_arr = pg_version.split('rc')
+else
+  pg_version_arr = pg_version.split('.')
+endif
+
+pg_version_major = pg_version_arr[0].to_int()
+pg_version_minor = pg_version_arr[1].to_int()
+
+cc = meson.get_compiler('c')
+
+cdata = configuration_data()
+
+
+cdata.set_quoted('PACKAGE_NAME', 'PostgreSQL')
+cdata.set_quoted('PACKAGE_BUGREPORT', 'pgsql-bugs@lists.postgresql.org')
+cdata.set_quoted('PACKAGE_URL', 'https://www.postgresql.org/')
+
+cdata.set_quoted('PG_VERSION', pg_version)
+cdata.set_quoted('PG_VERSION_STR', 'PostgreSQL @0@ on @1@, compiled by @2@-@3@'.format(
+  pg_version, target_machine.cpu_family(), cc.get_id(), cc.version()))
+cdata.set_quoted('PG_MAJORVERSION', pg_version_major.to_string())
+cdata.set('PG_MAJORVERSION_NUM', pg_version_major)
+cdata.set_quoted('PG_MINORVERSION', pg_version_minor.to_string())
+cdata.set('PG_MINORVERSION_NUM', pg_version_minor)
+cdata.set('PG_VERSION_NUM', (pg_version_major*10000)+pg_version_minor)
+cdata.set_quoted('CONFIGURE_ARGS', '')
+
+
+
+###############################################################
+# Search paths
+#
+# NB: Arguments added globally (via the below, or CFLAGS etc) are not taken
+# into account for configuration-time checks (so they are more
+# isolated). Flags that have to be taken into account for configure checks
+# have to be explicitly specified in configure tests.
+###############################################################
+
+g_inc = []
+g_c_args = []
+g_l_args = []
+
+if host_machine.system() == 'darwin'
+  # XXX, should this be required?
+  xcrun = find_program('xcrun', native: true, required: true)
+
+  sysroot = run_command(xcrun, '--show-sdk-path', check: true).stdout().strip()
+  message('sysroot is >@0@<'.format(sysroot))
+
+  g_c_args += ['-isysroot', sysroot]
+  g_l_args += ['-isysroot', sysroot]
+endif
+
+if host_machine.system() == 'linux' or host_machine.system() == 'cygwin'
+  g_c_args += '-D_GNU_SOURCE'
+endif
+
+g_c_inc = []
+
+g_c_inc += include_directories(get_option('extra_include_dirs'))
+g_c_lib = get_option('extra_lib_dirs')
+
+add_project_arguments(g_c_args, language: ['c', 'cpp'])
+add_project_link_arguments(g_l_args, language: ['c', 'cpp'])
+
+
+
+###############################################################
+# Program paths
+###############################################################
+
+# External programs
+perl = find_program(get_option('PERL'), required: true)
+flex = find_program(get_option('FLEX'), native: true)
+bison = find_program(get_option('BISON'), native: true, version: '>= 1.875')
+sed = find_program(get_option('SED'), 'sed', native: true)
+prove = find_program(get_option('PROVE'))
+tar = find_program(get_option('TAR'), native: true)
+gzip = find_program(get_option('GZIP'), native: true)
+touch = find_program('touch', native: true)
+
+# Internal programs
+find_meson = find_program('src/tools/find_meson', native: true)
+testwrap = find_program('src/tools/testwrap', native: true)
+relpath = find_program('src/tools/relpath.py', native: true)
+
+bisonflags = []
+if bison.found()
+  bison_version_c = run_command(bison, '--version', check: true)
+  # bison version string helpfully is something like
+  # >>bison (GNU bison) 3.8.1<<
+  bison_version = bison_version_c.stdout().split(' ')[3].split('\n')[0]
+  if bison_version.version_compare('>=3.0')
+    bisonflags += ['-Wno-deprecated']
+  endif
+endif
+
+
+wget = find_program('wget', required: false, native: true)
+wget_flags = ['-O', '@OUTPUT0@', '--no-use-server-timestamps']
+
+
+###############################################################
+# Path to meson (for tests etc)
+###############################################################
+
+# FIXME: this should really be part of meson, see
+# https://github.com/mesonbuild/meson/issues/8511
+meson_binpath_r = run_command(find_meson, check: true)
+
+if meson_binpath_r.returncode() != 0 or meson_binpath_r.stdout() == ''
+  error('huh, could not run find_meson.\nerrcode: @0@\nstdout: @1@\nstderr: @2@'.format(
+    meson_binpath_r.returncode(),
+    meson_binpath_r.stdout(),
+    meson_binpath_r.stderr()))
+endif
+
+meson_binpath_s = meson_binpath_r.stdout().split('\n')
+meson_binpath_len = meson_binpath_s.length()
+
+if meson_binpath_len < 1
+  error('unexpected introspect line @0@'.format(meson_binpath_r.stdout()))
+endif
+
+i = 0
+meson_binpath = ''
+meson_args = []
+foreach e : meson_binpath_s
+  if i == 0
+    meson_binpath = e
+  else
+    meson_args += e
+  endif
+  i += 1
+endforeach
+
+meson_bin = find_program(meson_binpath, native: true)
+
+
+
+###############################################################
+# Option Handling
+###############################################################
+
+cdata.set('USE_ASSERT_CHECKING', get_option('cassert'))
+
+cdata.set('BLCKSZ', 8192, description: '''
+ Size of a disk block --- this also limits the size of a tuple.  You
+ can set it bigger if you need bigger tuples (although TOAST should
+ reduce the need to have large tuples, since fields can be spread
+ across multiple tuples).
+
+ BLCKSZ must be a power of 2.  The maximum possible value of BLCKSZ
+ is currently 2^15 (32768).  This is determined by the 15-bit widths
+ of the lp_off and lp_len fields in ItemIdData (see
+ include/storage/itemid.h).
+
+ Changing BLCKSZ requires an initdb.
+''')
+
+cdata.set('XLOG_BLCKSZ', 8192)
+cdata.set('RELSEG_SIZE', 131072)
+cdata.set('DEF_PGPORT', 5432)
+cdata.set_quoted('DEF_PGPORT_STR', '5432')
+cdata.set_quoted('PG_KRB_SRVNAM', 'postgres')
+
+
+
+###############################################################
+# Library: GSSAPI
+###############################################################
+
+gssapiopt = get_option('gssapi')
+if not gssapiopt.disabled()
+  gssapi = dependency('krb5-gssapi', required: gssapiopt)
+
+  if gssapi.found() and \
+    cc.check_header('gssapi/gssapi.h', args: g_c_args, dependencies: gssapi, required: gssapiopt)
+
+    if not cc.has_function('gss_init_sec_context', args: g_c_args, dependencies: gssapi)
+      error('''could not find function 'gss_init_sec_context' required for GSSAPI''')
+    endif
+    cdata.set('ENABLE_GSS', 1)
+  endif
+
+else
+  gssapi = dependency('', required : false)
+endif
+
+
+
+###############################################################
+# Library: ldap
+###############################################################
+
+ldapopt = get_option('ldap')
+if not ldapopt.disabled()
+
+  if host_machine.system() == 'windows'
+    ldap = cc.find_library('wldap32')
+    ldap_r = ldap
+  else
+    ldap = dependency('ldap', required: false)
+
+    # Before 2.5 openldap didn't have a pkg-config file..
+    if ldap.found()
+      ldap_r = ldap
+    else
+      ldap = cc.find_library('ldap', required: ldapopt)
+      ldap_r = cc.find_library('ldap_r', required: ldapopt)
+
+      # Use ldap_r for FE if available, else assume ldap is thread-safe.
+      # On some platforms ldap_r fails to link without PTHREAD_LIBS.
+      if ldap.found() and not ldap_r.found()
+        ldap_r = ldap
+      endif
+    endif
+
+    if ldap.found() and cc.has_function('ldap_initialize', args: g_c_args, dependencies: [ldap, thread_dep])
+      cdata.set('HAVE_LDAP_INITIALIZE', 1)
+    endif
+  endif
+
+  if ldap.found()
+    cdata.set('USE_LDAP', 1)
+  endif
+
+else
+  ldap = dependency('', required : false)
+  ldap_r = ldap
+endif
+
+
+
+###############################################################
+# Library: LLVM
+###############################################################
+
+llvmopt = get_option('llvm')
+if not llvmopt.disabled()
+  add_languages('cpp', required : true, native: false)
+  llvm = dependency('llvm', version : '>=3.9', method: 'config-tool', required: llvmopt)
+
+  if llvm.found()
+
+    cdata.set('USE_LLVM', 1)
+
+    cpp = meson.get_compiler('cpp')
+
+    llvm_binpath = llvm.get_variable(configtool: 'bindir')
+
+    ccache = find_program('ccache', required: false)
+    clang = find_program(llvm_binpath / 'clang', required: true)
+    llvm_lto = find_program(llvm_binpath / 'llvm-lto', required: true)
+
+    # FIXME: the includes hardcoded here suck
+    llvm_irgen_args = [
+      '-c', '-o', '@OUTPUT@', '@INPUT@',
+      '-flto=thin', '-emit-llvm',
+      '-MD', '-MQ', '@OUTPUT@', '-MF', '@DEPFILE@',
+      '-I', '@SOURCE_ROOT@/src/include',
+      '-I', '@BUILD_ROOT@/src/include',
+      '-I', '@BUILD_ROOT@/src/backend/utils/misc',
+      '-I', '@CURRENT_SOURCE_DIR@',
+      '-O2',
+      '-Wno-ignored-attributes',
+      '-Wno-empty-body',
+    ]
+
+    if ccache.found()
+      llvm_irgen_command = ccache
+      llvm_irgen_args = [clang.path()] + llvm_irgen_args
+    else
+      llvm_irgen_command = clang
+    endif
+
+    llvm_irgen_kw = {
+      'command': [llvm_irgen_command] + llvm_irgen_args,
+      'depfile': '@BASENAME@.c.bc.d',
+    }
+
+    irlink = find_program('src/tools/irlink', native: true)
+
+    llvm_irlink_kw = {
+      'command':[
+        irlink,
+        '@SOURCE_ROOT@',
+        '@BUILD_ROOT@',
+        llvm_lto,
+        '-o', '@OUTPUT0@',
+        '@PRIVATE_DIR@',
+        '@INPUT@',
+      ],
+      'install': true,
+      'install_dir': get_option('libdir'),
+    }
+
+  endif
+else
+  llvm = dependency('', required: false)
+endif
+
+
+
+###############################################################
+# Library: icu
+###############################################################
+
+if not get_option('icu').disabled()
+  icu = dependency('icu-uc', required: get_option('icu').enabled())
+  icu_i18n = dependency('icu-i18n', required: get_option('icu').enabled())
+
+  if icu.found()
+    cdata.set('USE_ICU', 1)
+  endif
+
+else
+  icu = dependency('', required : false)
+  icu_i18n = dependency('', required : false)
+endif
+
+
+
+###############################################################
+# Library: libxml
+###############################################################
+
+libxmlopt = get_option('libxml')
+if not libxmlopt.disabled()
+  libxml = dependency('libxml-2.0', required: libxmlopt, version: '>= 2.6.23')
+
+  if libxml.found()
+    cdata.set('USE_LIBXML', 1)
+  endif
+else
+  libxml = dependency('', required : false)
+endif
+
+
+
+###############################################################
+# Library: libxslt
+###############################################################
+
+libxsltopt = get_option('libxslt')
+if not libxsltopt.disabled()
+  libxslt = dependency('libxslt', required: libxsltopt)
+
+  if libxslt.found()
+    cdata.set('USE_LIBXSLT', 1)
+  endif
+else
+  libxslt = dependency('', required : false)
+endif
+
+
+
+###############################################################
+# Library: lz4
+###############################################################
+
+lz4opt = get_option('lz4')
+if not lz4opt.disabled()
+  lz4 = dependency('liblz4', required: lz4opt)
+
+  if lz4.found()
+    cdata.set('USE_LZ4', 1)
+    cdata.set('HAVE_LIBLZ4', 1)
+  endif
+
+else
+  lz4 = dependency('', required : false)
+endif
+
+
+
+###############################################################
+# Library: Perl (for plperl)
+###############################################################
+
+perlopt = get_option('perl')
+perl_dep = dependency('', required: false)
+
+if perlopt.disabled()
+  perl_may_work = false
+else
+  perl_may_work = true
+
+  # First verify that perl has the necessary dependencies installed
+  perl_mods = run_command(
+    [perl,
+     '-MConfig', '-MOpcode', '-MExtUtils::Embed', '-MExtUtils::ParseXS',
+     '-e', ''],
+    check: false)
+  if perl_mods.returncode() != 0
+    perl_may_work = false
+    perl_msg = 'perl installation does not have the required modules'
+  endif
+
+  # Then inquire perl about its configuration
+  if perl_may_work
+    # FIXME: include copy-edited comments from perl.m4
+    perl_conf_cmd = [perl, '-MConfig', '-e', 'print $Config{$ARGV[0]}']
+    perlversion = run_command(perl_conf_cmd, 'api_versionstring', check: true).stdout()
+    archlibexp = run_command(perl_conf_cmd, 'archlibexp', check: true).stdout()
+    privlibexp = run_command(perl_conf_cmd, 'privlibexp', check: true).stdout()
+    useshrplib = run_command(perl_conf_cmd, 'useshrplib', check: true).stdout()
+    libperl = run_command(perl_conf_cmd, 'libperl', check: true).stdout()
+
+    perl_inc_dir = '@0@/CORE'.format(archlibexp)
+
+    perl_ccflags = []
+
+    if useshrplib != 'true'
+      perl_may_work = false
+      perl_msg = 'need a shared perl'
+    endif
+  endif
+
+  # XXX: should we only add directories that exist? Seems a bit annoying with
+  # macos' sysroot stuff...
+  #
+  # NB: For unknown reasons msys' python doesn't see these paths, despite gcc
+  # et al seeing them. So we can't use include_directories(), as that checks
+  # file existence.
+  if perl_may_work
+    perl_ccflags += ['-I@0@'.format(perl_inc_dir)]
+    if host_machine.system() == 'darwin'
+      perl_ccflags += ['-iwithsysroot', perl_inc_dir]
+    endif
+  endif
+
+  # check required headers are present
+  if perl_may_work and not \
+    cc.has_header('perl.h', args: g_c_args + perl_ccflags, required: false)
+    perl_may_work = false
+    perl_msg = 'missing perl.h'
+  endif
+
+  # Find perl library. This is made more complicated by the fact that the name
+  # Config.pm returns isn't directly usable (sometimes lib needs to be chopped
+  # off)
+  if perl_may_work
+    foreach p : ['perl', 'libperl', libperl, libperl.strip('lib'), fs.stem(libperl), fs.stem(libperl).strip('lib')]
+      perl_dep_int = cc.find_library(p,
+        dirs: ['@0@/CORE'.format(archlibexp)],
+        required: false)
+      if perl_dep_int.found()
+        break
+      endif
+    endforeach
+
+    if not perl_dep_int.found()
+      perl_may_work = false
+      perl_msg = 'missing libperl'
+    endif
+  endif
+
+  if perl_may_work
+    perl_ccflags_r = run_command(perl_conf_cmd, 'ccflags', check: true).stdout()
+    message('CCFLAGS recommended by Perl: @0@'.format(perl_ccflags_r))
+
+    foreach flag : perl_ccflags_r.split(' ')
+      if flag.startswith('-D') and \
+        (not flag.startswith('-D_') or flag == '_USE_32BIT_TIME_T')
+        perl_ccflags += flag
+      endif
+    endforeach
+
+    if host_machine.system() == 'windows'
+      perl_ccflags += ['-DPLPERL_HAVE_UID_GID']
+    endif
+
+    message('CCFLAGS for embedding perl: @0@'.format(' '.join(perl_ccflags)))
+
+    # perl.m4 sayeth:
+    #
+    # We are after Embed's ldopts, but without the subset mentioned in
+    # Config's ccdlflags;
+    #
+    # FIXME: andres sayeth: But why?
+
+    ldopts = run_command(perl, '-MExtUtils::Embed', '-e', 'ldopts', check: true).stdout().strip()
+    ccdlflags = run_command(perl_conf_cmd, 'ccdlflags', check: true).stdout().strip()
+
+    ccdlflags_dict = {}
+
+    foreach ccdlflag : ccdlflags.split(' ')
+      ccdlflags_dict += {ccdlflag: 1}
+    endforeach
+
+    perl_ldopts = []
+    foreach ldopt : ldopts.split(' ')
+      if ldopt == ''
+        continue
+      elif ccdlflags_dict.has_key(ldopt)
+        continue
+      # strawberry perl unhelpfully has that in ldopts
+      elif ldopt == '-s'
+        continue
+      endif
+
+      perl_ldopts += ldopt.strip('"')
+    endforeach
+
+    # FIXME: check if windows handling is necessary
+
+    message('LDFLAGS for embedding perl: "@0@" (ccdlflags: "@1@", ldopts: "@2@")'.format(
+      ' '.join(perl_ldopts), ccdlflags, ldopts))
+
+    if perl_dep_int.found()
+      perl_dep = declare_dependency(
+        compile_args: perl_ccflags,
+        link_args: perl_ldopts,
+        version: perlversion,
+      )
+    endif
+  endif # perl_may_work
+
+  if not perl_may_work
+    if perlopt.enabled()
+      error('dependency perl failed: @0@'.format(perl_msg))
+    else
+      message('disabling optional dependency perl: @0@'.format(perl_msg))
+    endif
+  endif
+endif
+
+
+
+###############################################################
+# Library: Python (for plpython)
+###############################################################
+
+pyopt = get_option('python')
+if not pyopt.disabled()
+  pm = import('python')
+  python3_inst = pm.find_installation(required: pyopt.enabled())
+  python3 = python3_inst.dependency(embed: true, required: pyopt.enabled())
+else
+  python3 = dependency('', required: false)
+endif
+
+
+
+###############################################################
+# Library: Readline
+#
+# FIXME: editline support
+###############################################################
+
+if not get_option('readline').disabled()
+  readline = dependency('readline', required: false)
+  if not readline.found()
+    readline = cc.find_library('readline',
+      required: get_option('readline').enabled())
+  endif
+
+  if readline.found()
+    cdata.set('HAVE_LIBREADLINE', 1)
+
+    if cc.has_header('readline/history.h', args: g_c_args, dependencies: [readline], required: false)
+      history_h = 'readline/history.h'
+      cdata.set('HAVE_READLINE_HISTORY_H', 1)
+      cdata.set('HAVE_READLINE_H', false)
+    elif cc.has_header('history.h', args: g_c_args, dependencies: [readline], required: false)
+      history_h = 'history.h'
+      cdata.set('HAVE_READLINE_HISTORY_H', false)
+      cdata.set('HAVE_HISTORY_H', 1)
+    else
+      error('''readline header not found
+If you have readline already installed, see see meson-log/meson-log.txt for details on the
+failure.  It is possible the compiler isn't looking in the proper directory.
+Use -Dreadline=false to disable readline support.''')
+    endif
+
+    if cc.has_header('readline/readline.h', args: g_c_args, dependencies: [readline], required: false)
+      readline_h = 'readline/readline.h'
+      cdata.set('HAVE_READLINE_READLINE_H', 1)
+    elif cc.has_header('readline.h', args: g_c_args, dependencies: [readline], required: false)
+      readline_h = 'readline.h'
+      cdata.set('HAVE_READLINE_H', 1)
+    else
+      error('''readline header not found
+If you have readline already installed, see see meson-log/meson-log.txt for details on the
+failure.  It is possible the compiler isn't looking in the proper directory.
+Use -Dreadline=false to disable readline support.''')
+    endif
+
+    check_funcs = [
+      'rl_completion_matches',
+      'rl_filename_completion_function',
+      'rl_reset_screen_size',
+      'append_history',
+      'history_truncate_file',
+    ]
+
+    foreach func : check_funcs
+      cdata.set('HAVE_'+func.to_upper(),
+        cc.has_function(func, args: g_c_args, dependencies: [readline]) ? 1 : false)
+    endforeach
+
+    check_vars = [
+      'rl_completion_append_character',
+      'rl_completion_suppress_quote',
+      'rl_filename_quote_characters',
+      'rl_filename_quoting_function',
+    ]
+
+    foreach var : check_vars
+      cdata.set('HAVE_'+var.to_upper(),
+        cc.has_header_symbol(readline_h, var, args: g_c_args, dependencies: [readline]) ? 1 : false)
+    endforeach
+  endif
+else
+  readline = dependency('', required : false)
+endif
+
+
+
+###############################################################
+# Library: selinux
+###############################################################
+
+selinux = dependency('', required : false)
+selinuxopt = get_option('selinux')
+if not selinuxopt.disabled()
+  selinux = dependency('libselinux', required: selinuxopt, version: '>= 2.1.10')
+endif
+cdata.set('HAVE_LIBSELINUX',
+  selinux.found() ? 1 : false)
+
+
+
+###############################################################
+# Library: systemd
+###############################################################
+
+systemd = dependency('', required : false)
+systemdopt = get_option('systemd')
+if meson.version().version_compare('>=0.59')
+  systemdopt = systemdopt.disable_auto_if(host_machine.system() != 'linux')
+endif
+if not systemdopt.disabled()
+  systemd = dependency('libsystemd', required: systemdopt)
+endif
+cdata.set('USE_SYSTEMD',
+  systemd.found() ? 1 : false)
+
+
+
+###############################################################
+# Library: SSL
+###############################################################
+
+if get_option('ssl') == 'openssl'
+
+  # Try to find openssl via pkg-config et al, if that doesn't work, look for
+  # the library names that we know about.
+
+  # via pkg-config et al
+  ssl = dependency('openssl', required: false)
+
+  # via library + headers
+  if not ssl.found()
+    ssl_lib = cc.find_library('ssl',
+      dirs: g_c_lib,
+      header_include_directories: g_c_inc,
+      has_headers: ['openssl/ssl.h', 'openssl/err.h'])
+    crypto_lib = cc.find_library('crypto',
+      dirs: g_c_lib,
+      header_include_directories: g_c_inc)
+    ssl_int = [ssl_lib, crypto_lib]
+
+    ssl = declare_dependency(dependencies: ssl_int,
+                             include_directories: g_c_inc)
+  else
+    cc.has_header('openssl/ssl.h', args: g_c_args, dependencies: ssl, required: true)
+    cc.has_header('openssl/err.h', args: g_c_args, dependencies: ssl, required: true)
+
+    ssl_int = [ssl]
+  endif
+
+  cdata.set_quoted('WITH_SSL', get_option('ssl'))
+
+  check_funcs = [
+    ['CRYPTO_new_ex_data', {'required': true}],
+    ['SSL_new', {'required': true}],
+
+    # Function introduced in OpenSSL 1.0.2.
+    ['X509_get_signature_nid'],
+
+    # Functions introduced in OpenSSL 1.1.0. We used to check for
+    # OPENSSL_VERSION_NUMBER, but that didn't work with 1.1.0, because LibreSSL
+    # defines OPENSSL_VERSION_NUMBER to claim version 2.0.0, even though it
+    # doesn't have these OpenSSL 1.1.0 functions. So check for individual
+    # functions.
+    ['OPENSSL_init_ssl'],
+    ['BIO_get_data'],
+    ['BIO_meth_new'],
+    ['ASN1_STRING_get0_data'],
+    ['HMAC_CTX_new'],
+    ['HMAC_CTX_free'],
+
+    # OpenSSL versions before 1.1.0 required setting callback functions, for
+    # thread-safety. In 1.1.0, it's no longer required, and CRYPTO_lock()
+    # function was removed.
+    ['CRYPTO_lock'],
+  ]
+
+  foreach c : check_funcs
+    func = c.get(0)
+    val = cc.has_function(func, args: g_c_args, dependencies: ssl_int)
+    if not val and c.get(1, {}).get('required', false)
+      error('openssl function @0@ is required'.format(func))
+    endif
+    cdata.set('HAVE_'+func.to_upper(), val ? 1 : false)
+  endforeach
+
+  cdata.set('USE_OPENSSL', 1,
+            description: 'Define to 1 to build with OpenSSL support. (-Dssl=openssl)')
+
+  cdata.set('OPENSSL_API_COMPAT', 0x10001000,
+            description: 'Define to the OpenSSL API version in use. This avoids deprecation warnings from newer OpenSSL versions.')
+else
+  ssl = dependency('', required : false)
+endif
+
+
+
+###############################################################
+# Library: uuid
+###############################################################
+
+uuidopt = get_option('uuid')
+if uuidopt != 'none'
+  uuidname = uuidopt.to_upper()
+  if uuidopt == 'e2fs'
+    uuid = dependency('uuid', required: true)
+    uuidfunc = 'uuid_generate'
+    uuidheader = 'uuid/uuid.h'
+  elif uuidopt == 'bsd'
+    # libc should have uuid function
+    uuid = declare_dependency()
+    uuidfunc = 'uuid_to_string'
+    uuidheader = 'uuid.h'
+  elif uuidopt == 'ossp'
+    uuid = dependency('ossp-uuid', required: true)
+    uuidfunc = 'uuid_export'
+    uuidheader = 'ossp/uuid.h'
+  else
+    error('huh')
+  endif
+
+  if not cc.has_header_symbol(uuidheader, uuidfunc, dependencies: uuid)
+    error('uuid library @0@ missing required function @1@'.format(uuidopt, uuidfunc))
+  endif
+  cdata.set('HAVE_@0@'.format(uuidheader.underscorify().to_upper()), 1)
+
+  cdata.set('HAVE_UUID_@0@'.format(uuidname), 1,
+           description: 'Define to 1 if you have @0@ UUID support.'.format(uuidname))
+else
+  uuid = dependency('', required : false)
+endif
+
+
+
+###############################################################
+# Library: zlib
+###############################################################
+
+zlibopt = get_option('zlib')
+zlib = dependency('', required : false)
+if not zlibopt.disabled()
+  zlib_t = dependency('zlib', required: zlibopt)
+
+  if zlib_t.type_name() == 'internal'
+    # if fallback was used, we don't need to test if headers are present (they
+    # aren't built yet, so we can't test)
+    zlib = zlib_t
+  elif not zlib_t.found()
+    warning('did not find zlib')
+  elif not cc.has_header('zlib.h', args: g_c_args, dependencies: [zlib_t], required: zlibopt.enabled())
+    warning('zlib header not found')
+  elif not cc.has_type('z_streamp', args: g_c_args, dependencies: [zlib_t], prefix: '#include <zlib.h>')
+    if zlibopt.enabled()
+      error('zlib version is too old')
+    else
+      warning('zlib version is too old')
+    endif
+  else
+    zlib = zlib_t
+  endif
+
+  if zlib.found()
+    cdata.set('HAVE_LIBZ', 1)
+  endif
+endif
+
+
+
+###############################################################
+# Compiler tests
+###############################################################
+
+sizeof_long = cc.sizeof('long', args: g_c_args)
+cdata.set('SIZEOF_LONG', sizeof_long)
+if sizeof_long == 8
+  cdata.set('HAVE_LONG_INT_64', 1)
+  cdata.set('PG_INT64_TYPE', 'long int')
+  cdata.set_quoted('INT64_MODIFIER', 'l')
+elif sizeof_long == 4 and cc.sizeof('long long', args: g_c_args) == 8
+  cdata.set('HAVE_LONG_LONG_INT_64', 1)
+  cdata.set('PG_INT64_TYPE', 'long long int')
+  cdata.set_quoted('INT64_MODIFIER', 'll')
+elif
+  error('do not know how to get a 64bit int')
+endif
+
+
+cdata.set('MAXIMUM_ALIGNOF', 8)
+cdata.set('ALIGNOF_SHORT', cc.alignment('short', args: g_c_args))
+cdata.set('ALIGNOF_INT', cc.alignment('int', args: g_c_args))
+cdata.set('ALIGNOF_LONG', cc.alignment('long', args: g_c_args))
+cdata.set('ALIGNOF_DOUBLE', cc.alignment('double', args: g_c_args))
+cdata.set('SIZEOF_VOID_P', cc.sizeof('void *', args: g_c_args))
+cdata.set('SIZEOF_SIZE_T', cc.sizeof('size_t', args: g_c_args))
+
+# Check if the C compiler knows computed gotos (gcc extension, also
+# available in at least clang).  If so, define HAVE_COMPUTED_GOTO.
+#
+# Checking whether computed gotos are supported syntax-wise ought to
+# be enough, as the syntax is otherwise illegal.
+if cc.compiles('''
+    static inline int foo(void)
+    {
+      void *labeladdrs[] = {&&my_label};
+      goto *labeladdrs[0];
+      my_label:
+      return 1;
+    }''',
+    args: g_c_args)
+  cdata.set('HAVE_COMPUTED_GOTO', 1)
+endif
+
+
+# XXX: for now just assume that compiler knows __func__ - it's C99 after all.
+cdata.set('HAVE_FUNCNAME__FUNC', 1)
+
+# Check if the C compiler understands _Static_assert(),
+# and define HAVE__STATIC_ASSERT if so.
+#
+# We actually check the syntax ({ _Static_assert(...) }), because we need
+# gcc-style compound expressions to be able to wrap the thing into macros.
+if cc.compiles('''
+    int main(int arg, char **argv)
+    {
+        ({ _Static_assert(1, "foo"); })
+    }
+    ''',
+    args: g_c_args)
+  cdata.set('HAVE__STATIC_ASSERT', 1)
+endif
+
+# We use <stdbool.h> if we have it and it declares type bool as having
+# size 1.  Otherwise, c.h will fall back to declaring bool as unsigned char.
+if cc.has_type('_Bool', args: g_c_args) \
+  and cc.has_type('bool', prefix: '#include <stdbool.h>', args: g_c_args) \
+  and cc.sizeof('bool', prefix: '#include <stdbool.h>', args: g_c_args) == 1
+  cdata.set('HAVE__BOOL', 1)
+  cdata.set('PG_USE_STDBOOL', 1)
+endif
+
+
+printf_attributes = ['gnu_printf', '__syslog__', 'printf']
+testsrc = 'extern void pgac_write(int ignore, const char *fmt,...) __attribute__((format(@0@, 2,3)));'
+foreach a : printf_attributes
+  if cc.compiles(testsrc.format(a), args: g_c_args + ['-Werror'], name: 'format ' + a)
+    cdata.set('PG_PRINTF_ATTRIBUTE', a)
+    break
+  endif
+endforeach
+
+if cc.has_function_attribute('visibility:default') and \
+  cc.has_function_attribute('visibility:hidden')
+  cdata.set('HAVE_VISIBILITY_ATTRIBUTE', 1)
+endif
+
+
+if cc.has_function('__builtin_unreachable', args: g_c_args)
+  cdata.set('HAVE__BUILTIN_UNREACHABLE', 1)
+endif
+
+if cc.has_function('__builtin_constant_p', args: g_c_args)
+  cdata.set('HAVE__BUILTIN_CONSTANT_P', 1)
+
+  if host_machine.cpu_family() == 'ppc' or host_machine.cpu_family() == 'ppc64'
+    # Check if compiler accepts "i"(x) when __builtin_constant_p(x).
+    if cc.compiles('''
+      static inline int
+      addi(int ra, int si)
+      {
+          int res = 0;
+          if (__builtin_constant_p(si))
+              __asm__ __volatile__(
+                  " addi %0,%1,%2\n" : "=r"(res) : "b"(ra), "i"(si));
+          return res;
+      }
+      int test_adds(int x) { return addi(3, x) + addi(x, 5); }
+      ''',
+      args: g_c_args)
+      cdata.set('HAVE_I_CONSTRAINT__BUILTIN_CONSTANT_P', 1)
+    endif
+  endif
+endif
+
+
+
+# XXX: The configure.ac check for __cpuid() is broken, we don't copy that
+# here. To prevent problems due to two detection methods working, stop
+# checking after one.
+if cc.links('''
+    #include <cpuid.h>
+    int main(int arg, char **argv)
+    {
+        unsigned int exx[4] = {0, 0, 0, 0};
+        __get_cpuid(1, &exx[0], &exx[1], &exx[2], &exx[3]);
+    }
+    ''', name: '__get_cpuid',
+    args: g_c_args)
+  cdata.set('HAVE__GET_CPUID', 1)
+elif cc.links('''
+    #include <intrin.h>
+    int main(int arg, char **argv)
+    {
+        unsigned int exx[4] = {0, 0, 0, 0};
+        __cpuid(exx, 1);
+    }
+    ''', name: '__cpuid',
+    args: g_c_args)
+  cdata.set('HAVE__CPUID', 1)
+endif
+
+
+
+###############################################################
+# Compiler flags
+###############################################################
+
+common_functional_flags = [
+  # Disable strict-aliasing rules; needed for gcc 3.3+
+  '-fno-strict-aliasing',
+  # Disable optimizations that assume no overflow; needed for gcc 4.3+
+  '-fwrapv',
+  '-fexcess-precision=standard'
+]
+
+add_project_arguments(cc.get_supported_arguments(common_functional_flags), language: 'c')
+
+vectorize_cflags = cc.get_supported_arguments(['-ftree-vectorize'])
+unroll_loops_cflags = cc.get_supported_arguments(['-funroll-loops'])
+
+
+common_warning_flags = [
+  '-Wmissing-prototypes',
+  '-Wpointer-arith',
+  '-Werror=vla',
+  '-Wendif-labels',
+  '-Wmissing-format-attribute',
+  '-Wimplicit-fallthrough=3',
+  '-Wcast-function-type',
+  '-Wformat-security',
+]
+
+add_project_arguments(cc.get_supported_arguments(common_warning_flags), language: 'c')
+
+if llvm.found()
+  add_project_arguments(cpp.get_supported_arguments(common_warning_flags), language: 'cpp')
+endif
+
+# A few places with imported code get a pass on -Wdeclaration-after-statement, remember
+# the result for them
+if cc.has_argument('-Wdeclaration-after-statement')
+  add_project_arguments('-Wdeclaration-after-statement', language: 'c')
+  using_declaration_after_statement_warning = true
+else
+  using_declaration_after_statement_warning = false
+endif
+
+
+# We want to suppress a few unhelpful warnings - but gcc won't
+# complain about unrecognized -Wno-foo switches, so we have to test
+# for the positive form and if that works, add the negative form
+
+negative_warning_flags = [
+  'unused-command-line-argument',
+  'format-truncation',
+  'stringop-truncation',
+
+  # FIXME: from andres's local config
+  'clobbered',
+  'missing-field-initializers',
+  'sign-compare',
+  'unused-parameter',
+]
+
+foreach w : negative_warning_flags
+  if cc.has_argument('-W'+w)
+    add_project_arguments('-Wno-'+w, language: 'c')
+  endif
+
+  if llvm.found() and cpp.has_argument('-W'+w)
+    add_project_arguments('-Wno-'+w, language: 'cpp')
+  endif
+endforeach
+
+
+# From Project.pm
+if cc.get_id() == 'msvc'
+  add_project_arguments('/wd4018', '/wd4244', '/wd4273', '/wd4102', '/wd4090', '/wd4267',
+    language: 'c')
+  add_project_arguments('/DWIN32', '/DWINDOWS', '/D__WINDOWS__', '/D__WIN32__',
+    '/DWIN32_STACK_RLIMIT=4194304', '/D_CRT_SECURE_NO_DEPRECATE', '/D_CRT_NONSTDC_NO_DEPRECATE',
+        language: 'c')
+endif
+
+
+
+###############################################################
+# Atomics
+###############################################################
+
+# FIXME
+cdata.set('HAVE_SPINLOCKS', 1)
+
+if get_option('atomics')
+  # FIXME
+  cdata.set('HAVE_ATOMICS', 1)
+
+  atomic_checks = [
+    {'name': 'HAVE_GCC__SYNC_CHAR_TAS',
+     'desc': '__sync_lock_test_and_set(char)',
+     'test': '''
+char lock = 0;
+__sync_lock_test_and_set(&lock, 1);
+__sync_lock_release(&lock);'''},
+
+    {'name': 'HAVE_GCC__SYNC_INT32_TAS',
+     'desc': '__sync_lock_test_and_set(int32)',
+     'test': '''
+int lock = 0;
+__sync_lock_test_and_set(&lock, 1);
+__sync_lock_release(&lock);'''},
+
+    {'name': 'HAVE_GCC__SYNC_INT32_CAS',
+     'desc': '__sync_val_compare_and_swap(int32)',
+     'test': '''
+int val = 0;
+__sync_val_compare_and_swap(&val, 0, 37);'''},
+
+# FIXME: int64 reference
+    {'name': 'HAVE_GCC__SYNC_INT64_CAS',
+     'desc': '__sync_val_compare_and_swap(int64)',
+     'test': '''
+long val = 0;
+__sync_val_compare_and_swap(&val, 0, 37);'''},
+
+    {'name': 'HAVE_GCC__ATOMIC_INT32_CAS',
+     'desc': ' __atomic_compare_exchange_n(int32)',
+     'test': '''
+int val = 0;
+int expect = 0;
+__atomic_compare_exchange_n(&val, &expect, 37, 0, __ATOMIC_SEQ_CST, __ATOMIC_RELAXED);'''},
+
+# FIXME: int64 reference
+    {'name': 'HAVE_GCC__ATOMIC_INT64_CAS',
+     'desc': ' __atomic_compare_exchange_n(int64)',
+     'test': '''
+long val = 0;
+int expect = 0;
+__atomic_compare_exchange_n(&val, &expect, 37, 0, __ATOMIC_SEQ_CST, __ATOMIC_RELAXED);'''},
+  ]
+
+  foreach check : atomic_checks
+    test = '''
+int main(void)
+{
+@0@
+}'''.format(check['test'])
+
+    cdata.set(check['name'],
+      cc.links(test, name: check['desc'], args: g_c_args))
+  endforeach
+
+endif
+
+
+
+###############################################################
+# CRC
+###############################################################
+
+have_optimized_crc = false
+cflags_crc = []
+if cpu_family == 'x86' or cpu_family == 'x86_64'
+
+  if cc.get_id() == 'msvc'
+    cdata.set('USE_SSE42_CRC32C', false)
+    cdata.set('USE_SSE42_CRC32C_WITH_RUNTIME_CHECK', 1)
+    have_optimized_crc = true
+  else
+
+    prog = '''
+#include <nmmintrin.h>
+
+int main(void)
+{
+    unsigned int crc = 0;
+    crc = _mm_crc32_u8(crc, 0);
+    crc = _mm_crc32_u32(crc, 0);
+    /* return computed value, to prevent the above being optimized away */
+    return crc == 0;
+}
+'''
+
+    if cc.links(prog, name: '_mm_crc32_u8 and _mm_crc32_u32 without -msse4.2', args: g_c_args)
+      cdata.set('USE_SSE42_CRC32C', 1)
+      have_optimized_crc = true
+    elif cc.links(prog, name: '_mm_crc32_u8 and _mm_crc32_u32 with -msse4.2', args: g_c_args + ['-msse4.2'])
+      cflags_crc += '-msse4.2'
+      cdata.set('USE_SSE42_CRC32C', false)
+      cdata.set('USE_SSE42_CRC32C_WITH_RUNTIME_CHECK', 1)
+      have_optimized_crc = true
+    endif
+
+  endif
+
+elif cpu_family == 'arm' or cpu_family == 'aarch64'
+
+  prog = '''
+#include <arm_acle.h>
+
+int main(void)
+{
+    unsigned int crc = 0;
+    crc = __crc32cb(crc, 0);
+    crc = __crc32ch(crc, 0);
+    crc = __crc32cw(crc, 0);
+    crc = __crc32cd(crc, 0);
+
+    /* return computed value, to prevent the above being optimized away */
+    return crc == 0;
+}
+'''
+
+  if cc.links(prog, name: '__crc32cb, __crc32ch, __crc32cw, and __crc32cd without -march=armv8-a+crc',
+      args: g_c_args)
+    cdata.set('USE_ARMV8_CRC32C', true)
+    have_optimized_crc = true
+  elif cc.links(prog, name: '__crc32cb, __crc32ch, __crc32cw, and __crc32cd with -march=armv8-a+crc',
+      args: g_c_args + ['-march=armv8-a+crc'])
+    cflags_crc += '-march=armv8-a+crc'
+    cdata.set('USE_ARMV8_CRC32C', false)
+    cdata.set('USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK', 1)
+    have_optimized_crc = true
+  endif
+endif
+
+if not have_optimized_crc
+  cdata.set('USE_SLICING_BY_8_CRC32C', 1)
+endif
+
+
+
+###############################################################
+# Library / OS tests
+###############################################################
+
+header_checks = [
+  ['atomic.h'],
+  ['stdbool.h'],
+  ['copyfile.h'],
+  ['execinfo.h'],
+  ['getopt.h'],
+  ['ifaddrs.h'],
+  ['langinfo.h'],
+  ['mbarrier.h'],
+  ['poll.h'],
+  ['sys/epoll.h'],
+  ['sys/event.h'],
+  ['sys/ipc.h'],
+  ['sys/prctl.h'],
+  ['sys/procctl.h'],
+  ['sys/pstat.h'],
+  ['sys/resource.h'],
+  ['sys/select.h'],
+  ['sys/sem.h'],
+  ['sys/shm.h'],
+  ['sys/sockio.h'],
+  ['sys/tas.h'],
+  ['sys/uio.h'],
+  ['sys/un.h'],
+  ['termios.h'],
+  ['ucred.h'],
+  # FIXME: openbsd workaround
+  ['sys/ucred.h'],
+  ['wctype.h'],
+  ['netinet/tcp.h'],
+  ['net/if.h'],
+  ['crtdefs.h'],
+]
+
+foreach c : header_checks
+  varname = 'HAVE_'+c.get(0).underscorify().to_upper()
+
+  # Emulate autoconf behaviour of not-found->undef, found->1
+  found = cc.has_header(c.get(0), include_directories: g_inc, args: g_c_args)
+  cdata.set(varname, found ? 1 : false,
+            description: 'Define to 1 if you have the <@0@> header file.'.format(c))
+endforeach
+
+
+
+decl_checks = [
+  ['F_FULLFSYNC', 'fcntl.h'],
+  ['RTLD_GLOBAL', 'dlfcn.h'],
+  ['RTLD_NOW', 'dlfcn.h'],
+  ['fdatasync', 'unistd.h'],
+  ['posix_fadvise', 'fcntl.h'],
+  ['sigwait', 'signal.h'],
+  ['strlcat', 'string.h'],
+  ['strlcpy', 'string.h'],
+  ['strnlen', 'string.h'],
+  ['strsignal', 'string.h'],
+  ['strtoll', 'stdlib.h'], ['strtoull', 'stdlib.h'], # strto[u]ll may exist but not be declared
+]
+
+# Need to check for function declarations for these functions, because
+# checking for library symbols wouldn't handle deployment target
+# restrictions on macOS
+decl_checks += [
+  ['preadv', 'sys/uio.h'],
+  ['pwritev', 'sys/uio.h'],
+]
+
+foreach c : decl_checks
+  varname = 'HAVE_DECL_'+c.get(0).underscorify().to_upper()
+
+  found = cc.has_header_symbol(c.get(1), c.get(0), args: g_c_args, kwargs: c.get(2, {}))
+  cdata.set10(varname, found, description:
+'''Define to 1 if you have the declaration of `@0@\', and to 0 if you
+  don't.'''.format(c))
+endforeach
+
+
+
+# XXX: this is borked, HAVE_SYS_UCRED_H not defined
+if cc.has_type('struct cmsgcred',
+    include_directories: g_inc,
+    args: g_c_args + ['@0@'.format(cdata.get('HAVE_SYS_UCRED_H')) == 'false' ? '-DHAVE_SYS_UCRED_H' : ''],
+    prefix: '''
+#include <sys/socket.h>
+#include <sys/param.h>
+#ifdef HAVE_SYS_UCRED_H
+#include <sys/ucred.h>
+#endif''')
+  cdata.set('HAVE_STRUCT_CMSGCRED', 1)
+else
+  cdata.set('HAVE_STRUCT_CMSGCRED', false)
+endif
+
+if cc.has_function('getopt', args: g_c_args) and \
+   cc.has_function('getopt_long', args: g_c_args) and \
+   cc.has_type('struct option', args: g_c_args, prefix: '#include <getopt.h>')
+  cdata.set('HAVE_GETOPT', 1)
+  cdata.set('HAVE_GETOPT_LONG', 1)
+  cdata.set('HAVE_STRUCT_OPTION', 1)
+else
+  warning('not yet implemented')
+endif
+
+
+foreach c : ['opterr', 'optreset']
+  varname = 'HAVE_INT_'+c.underscorify().to_upper()
+
+  if cc.links('''
+#include <unistd.h>
+int main(void)
+{
+    extern int @0@;
+    @0@ = 1;
+}
+'''.format(c), name: c, args: g_c_args)
+    cdata.set(varname, 1)
+  else
+    cdata.set(varname, false)
+  endif
+endforeach
+
+
+if cc.has_type('struct sockaddr_storage', args: g_c_args, prefix: '''
+#include <sys/types.h>
+#include <sys/socket.h>''')
+  cdata.set('HAVE_STRUCT_SOCKADDR_STORAGE', 1)
+endif
+
+if cc.has_member('struct sockaddr_storage', 'ss_family', args: g_c_args,
+  prefix: '''#include <sys/types.h>
+#include <sys/socket.h>''')
+  cdata.set('HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY', 1)
+endif
+
+if cc.has_member('struct sockaddr_storage', '__ss_family', args: g_c_args,
+  prefix: '''
+#include <sys/types.h>
+#include <sys/socket.h>''')
+  cdata.set('HAVE_STRUCT_SOCKADDR_STORAGE___SS_FAMILY', 1)
+endif
+
+if cc.has_type('struct sockaddr_un', args: g_c_args, prefix: '''
+#include <sys/types.h>
+#include <sys/un.h>''')
+  cdata.set('HAVE_STRUCT_SOCKADDR_UN', 1)
+endif
+
+if cc.has_type('struct addrinfo', args: g_c_args, prefix: '''
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+''')
+  cdata.set('HAVE_STRUCT_ADDRINFO', 1)
+endif
+
+if host_machine.system() == 'windows'
+  cdata.set('HAVE_STRUCT_SOCKADDR_STORAGE', 1)
+  cdata.set('HAVE_STRUCT_SOCKADDR_STORAGE_SS_FAMILY', 1)
+endif
+
+if cc.has_type('struct sockaddr_in6', args: g_c_args, prefix: '''
+#include <netinet/in.h>''')
+  cdata.set('HAVE_IPV6', 1)
+endif
+
+
+if cc.has_member('struct tm', 'tm_zone', args: g_c_args, prefix: '''
+#include <sys/types.h>
+#include <time.h>
+''')
+  cdata.set('HAVE_STRUCT_TM_TM_ZONE', 1)
+endif
+
+if cc.compiles('''
+#include <time.h>
+extern int foo(void);
+int foo(void)
+{
+    return timezone / 60;
+}
+''', name: 'Check if the global variable `timezone\' exists', args: g_c_args,)
+  cdata.set('HAVE_INT_TIMEZONE', 1)
+else
+  cdata.set('HAVE_INT_TIMEZONE', false)
+endif
+
+# FIXME: sys/ipc.h, sys/sem.h includes were conditional
+if cc.has_type('union semun', args: g_c_args, prefix: '''
+#include <sys/types.h>
+#include <sys/ipc.h>
+#include <sys/sem.h>
+''')
+  cdata.set('HAVE_UNION_SEMUN', 1)
+endif
+
+if cc.compiles('''
+#include <string.h>
+int main(void)
+{
+  char buf[100];
+  switch (strerror_r(1, buf, sizeof(buf)))
+  { case 0: break; default: break; }
+}''', args: g_c_args)
+  cdata.set('STRERROR_R_INT', 1)
+else
+  cdata.set('STRERROR_R_INT', false)
+endif
+
+# FIXME
+cdata.set('pg_restrict', '__restrict')
+
+# FIXME
+if host_machine.system() == 'windows'
+  cdata.set('ACCEPT_TYPE_ARG1', 'unsigned int')
+  cdata.set('ACCEPT_TYPE_ARG2', 'struct sockaddr *')
+  cdata.set('ACCEPT_TYPE_ARG3', 'int')
+  cdata.set('ACCEPT_TYPE_RETURN', 'unsigned int PASCAL')
+else
+  cdata.set('ACCEPT_TYPE_ARG1', 'int')
+  cdata.set('ACCEPT_TYPE_ARG2', 'struct sockaddr')
+  cdata.set('ACCEPT_TYPE_ARG3', 'socklen_t')
+  cdata.set('ACCEPT_TYPE_RETURN', 'int')
+endif
+
+cdata.set('HAVE_STRUCT_ADDRINFO', 1)
+
+
+cdata.set('MEMSET_LOOP_LIMIT', 1024)
+
+
+if cc.links('''
+#include <machine/vmparam.h>
+#include <sys/exec.h>
+
+int main(void)
+{
+    PS_STRINGS->ps_nargvstr = 1;
+    PS_STRINGS->ps_argvstr = "foo";
+}
+''',
+  name: 'PS_STRINGS', args: g_c_args)
+  cdata.set('HAVE_PS_STRINGS', 1)
+else
+  cdata.set('HAVE_PS_STRINGS', false)
+endif
+
+
+m_dep = cc.find_library('m', required : false)
+
+# Most libraries are included only if they demonstrably provide a function we
+# need, but libm is an exception: always include it, because there are too
+# many compilers that play cute optimization games that will break probes for
+# standard functions such as pow().
+os_deps = [m_dep]
+
+rt_dep = cc.find_library('rt', required : false)
+
+dl_dep = cc.find_library('dl', required : false)
+
+util_dep = cc.find_library('util', required : false)
+posix4_dep = cc.find_library('posix4', required : false)
+
+getopt_dep = cc.find_library('getopt', required : false)
+gnugetopt_dep = cc.find_library('gnugetopt', required : false)
+
+execinfo_dep = cc.find_library('execinfo', required : false)
+
+func_checks = [
+  ['_configthreadlocale'],
+  ['backtrace_symbols', {'dependencies': [execinfo_dep]}],
+  ['clock_gettime', {'dependencies': [rt_dep, posix4_dep]}],
+  ['copyfile'],
+  ['dlopen', {'dependencies': [dl_dep]}],
+  ['explicit_bzero'],
+  ['fdatasync', {'dependencies': [rt_dep, posix4_dep]}],
+  ['fls'],
+  ['getaddrinfo'],
+  ['gethostbyname_r', {'dependencies': [thread_dep]}],
+  ['getifaddrs'],
+  ['getopt', {'dependencies': [getopt_dep, gnugetopt_dep]}],
+  ['getopt_long',{'dependencies': [getopt_dep, gnugetopt_dep]}],
+  ['getpeereid'],
+  ['getpeerucred'],
+  ['getpwuid_r', {'dependencies': [thread_dep]}],
+  ['getrlimit'],
+  ['getrusage'],
+  ['gettimeofday'], # XXX: This seems to be in the autoconf case
+  ['inet_aton'],
+  ['kqueue'],
+  ['link'],
+  ['mbstowcs_l'],
+  ['memset_s'],
+  ['mkdtemp'],
+  ['poll'],
+  ['posix_fadvise'],
+  ['posix_fallocate'],
+  ['ppoll'],
+  ['pread'],
+  ['pstat'],
+  ['pthread_is_threaded_np'],
+  ['pwrite'],
+  ['random'],
+  ['readlink'],
+  ['readv'],
+  ['setenv'], # FIXME: windows handling
+  ['setproctitle', {'dependencies': [util_dep]}],
+  ['setproctitle_fast'],
+  ['setsid'],
+  ['shm_open', {'dependencies': [rt_dep]}],
+  ['shm_unlink', {'dependencies': [rt_dep]}],
+  ['srandom'],
+  ['strchrnul'],
+  ['strerror_r', {'dependencies': [thread_dep]}],
+  ['strlcat'],
+  ['strlcpy'],
+  ['strnlen'],
+  ['strsignal'],
+  ['strtof'], # strsignal is checked separately
+  ['strtoll'], ['__strtoll'], ['strtoq'],
+  ['strtoull'], ['__strtoull'], ['strtouq'],
+  ['symlink'],
+  ['sync_file_range'],
+  ['syncfs'],
+  ['unsetenv'],
+  ['uselocale'],
+  ['wcstombs_l'],
+  ['writev'],
+]
+
+foreach c : func_checks
+  func = c.get(0)
+  kwargs = c.get(1, {})
+  deps = kwargs.get('dependencies', [])
+
+  varname = 'HAVE_'+func.underscorify().to_upper()
+
+  found = cc.has_function(func, args: g_c_args,
+                          kwargs: kwargs + {'dependencies': []})
+
+  if not found
+    foreach dep : deps
+      if not dep.found()
+        continue
+      endif
+      found = cc.has_function(func, args: g_c_args,
+                              kwargs: kwargs + {'dependencies': [dep]})
+      if found
+        os_deps += dep
+        break
+      endif
+    endforeach
+  endif
+
+  # Emulate autoconf behaviour of not-found->undef, found->1
+  cdata.set(varname, found  ? 1 : false,
+            description: 'Define to 1 if you have the `@0@\' function.'.format(c))
+endforeach
+
+
+
+
+
+if host_machine.system() == 'linux' or host_machine.system() == 'freebsd'
+  dlsuffix = '.so'
+elif host_machine.system() == 'darwin'
+  dlsuffix = '.dylib'
+elif host_machine.system() == 'windows'
+  dlsuffix = '.dll'
+else
+  error('not yet')
+endif
+
+cdata.set_quoted('DLSUFFIX', dlsuffix)
+
+if host_machine.system() == 'windows'
+   cdata.set('USE_WIN32_SEMAPHORES', 1)
+   cdata.set('USE_WIN32_SHARED_MEMORY', 1)
+elif host_machine.system() == 'darwin'
+   cdata.set('USE_SYSV_SEMAPHORES', 1)
+   cdata.set('USE_SYSV_SHARED_MEMORY', 1)
+else
+   cdata.set('USE_UNNAMED_POSIX_SEMAPHORES', 1)
+   cdata.set('USE_SYSV_SHARED_MEMORY', 1)
+endif
+
+
+if host_machine.system() == 'windows'
+  cdata.set('HAVE_IPV6', 1)
+  cdata.set('HAVE_SYMLINK', 1)
+  cdata.set('WIN32_STACK_RLIMIT', 4194304)
+  cdata.set('HAVE__CONFIGTHREADLOCALE', 1)
+endif
+
+if cc.get_id() == 'msvc'
+  add_project_link_arguments(
+    '/fixed:no',
+    '/dynamicbase',
+    '/nxcompat',
+    language : ['c', 'cpp'],
+  )
+endif
+
+if host_machine.system() == 'windows'
+  os_deps += cc.find_library('ws2_32', required: true)
+endif
+
+
+
+###############################################################
+# Threading
+###############################################################
+
+# Probably not worth implementing other cases anymore
+cdata.set('ENABLE_THREAD_SAFETY', 1)
+
+if thread_dep.found()
+  if cc.has_function('pthread_is_threaded_np', args: g_c_args, dependencies: [thread_dep])
+    cdata.set('HAVE_PTHREAD_IS_THREADED_NP', 1)
+  endif
+  if cc.has_function('pthread_barrier_wait', args: g_c_args, dependencies: [thread_dep])
+    cdata.set('HAVE_PTHREAD_BARRIER_WAIT', 1)
+  endif
+endif
+
+
+
+###############################################################
+# Build
+###############################################################
+
+# Collect a number of lists of things while recursing through the source
+# tree. Later steps then can use those.
+
+test_deps = []
+backend_targets = []
+
+
+# List of tap tests we later generate test() invocations for. The main
+# reason for doing it that way instead of having test() invocations
+# everywhere is that they end up being too large. A second benefit is
+# that it'd make it easier to generate data for another runner.
+tap_tests = []
+isolation_tests = []
+regress_tests = []
+
+
+# Default options for targets
+
+default_target_args = {
+  'implicit_include_directories': false,
+  'install': true,
+}
+
+default_lib_args = default_target_args + {
+  'name_prefix': 'lib',
+}
+
+internal_lib_args = default_lib_args + {
+  'build_by_default': false,
+  'install': false,
+}
+
+default_mod_args = default_lib_args + {
+  'name_prefix': '',
+}
+
+default_bin_args = default_target_args + {
+}
+
+if host_machine.system() == 'windows'
+  # nothing to do
+else
+  if host_machine.system() == 'darwin'
+    rpath_var = '@loader_path'
+  else
+    rpath_var = '$ORIGIN'
+  endif
+
+  # PG binaries might need to link to libpq, use relative path to reference
+  bin_to_lib = run_command(relpath,
+    get_option('bindir'), get_option('libdir'), check: true).stdout().strip()
+  default_bin_args += {'install_rpath':  rpath_var / bin_to_lib}
+
+  # PG extensions might need to link to libpq, use relative path to reference
+  # (often just .)
+  mod_to_lib = run_command(relpath,
+    get_option('libdir'), get_option('libdir'), check: true).stdout().strip()
+  default_mod_args += {'install_rpath': rpath_var}
+endif
+
+
+###
+### windows resources related stuff
+###
+
+rc_cdata = configuration_data()
+rc_cdata.set_quoted('ICO', meson.source_root() / 'src' / 'port' / 'win32.ico')
+
+rc_lib_cdata = rc_cdata
+rc_lib_cdata.set('VFT_TYPE', 'VFT_DLL')
+
+rc_bin_cdata = rc_cdata
+rc_bin_cdata.set('VFT_TYPE', 'VFT_APP')
+
+win32ver_rc_in = files('src/port/win32ver.rc.in')
+
+
+# First visit src/include - all targets creating headers are defined
+# within. That makes it easy to add the necessary dependencies for the
+# subsequent build steps.
+
+generated_headers = []
+generated_backend_headers = []
+
+postgres_inc = [include_directories('src/include')]
+
+if host_machine.system() == 'windows'
+  postgres_inc += include_directories('src/include/port/win32')
+
+  if cc.get_id() == 'msvc'
+    postgres_inc += include_directories('src/include/port/win32_msvc')
+  endif
+endif
+
+subdir('src/include')
+
+
+# Then through src/port and src/common, as most other things depend on them
+
+frontend_port_code = declare_dependency(
+  compile_args: ['-DFRONTEND'],
+  include_directories: [postgres_inc],
+  sources: [errcodes],
+  dependencies: os_deps,
+)
+
+backend_port_code = declare_dependency(
+  compile_args: ['-DBUILDING_DLL'],
+  include_directories: [postgres_inc],
+  sources: [errcodes],
+  dependencies: os_deps,
+)
+
+subdir('src/port')
+
+frontend_common_code = declare_dependency(
+  compile_args: ['-DFRONTEND'],
+  include_directories: [postgres_inc],
+  sources: generated_headers,
+  dependencies: os_deps,
+)
+
+backend_common_code = declare_dependency(
+  compile_args: ['-DBUILDING_DLL'],
+  include_directories: [postgres_inc],
+  sources: generated_headers,
+)
+
+subdir('src/common')
+
+frontend_shlib_code = declare_dependency(
+  compile_args: ['-DFRONTEND'],
+  include_directories: [postgres_inc],
+  link_with: [pgport_shlib, common_shlib],
+  sources: generated_headers,
+  dependencies: os_deps,
+)
+
+subdir('src/interfaces/libpq')
+subdir('src/fe_utils')
+
+frontend_code = declare_dependency(
+  compile_args: ['-DFRONTEND'],
+  include_directories: [postgres_inc],
+  link_with: [pgport_static, common_static, fe_utils],
+  sources: generated_headers,
+  dependencies: os_deps,
+)
+
+backend_code = declare_dependency(
+  compile_args: ['-DBUILDING_DLL'],
+  include_directories: [postgres_inc],
+  link_with: [],
+  sources: generated_headers + generated_backend_headers,
+  dependencies: [os_deps, ssl, lz4, icu, icu_i18n, ldap, gssapi, libxml, systemd],
+)
+
+# Note there's intentionally no dependency on pgport/common here - we want the
+# symbols from the main binary for extension modules, rather than the
+# extension linking separately to pgport/common.
+backend_mod_code = declare_dependency(
+  compile_args: [],
+  include_directories: [postgres_inc],
+  link_with: [],
+  sources: generated_headers + generated_backend_headers,
+  dependencies: [os_deps, ssl, lz4, icu, icu_i18n, ldap, gssapi, libxml, systemd],
+)
+
+# Then through the main sources. That way contrib can have dependencies on
+# main sources. Note that this explicitly doesn't enter src/test, right now a
+# few regression tests depend on contrib files.
+
+subdir('src')
+
+subdir('contrib')
+
+subdir('src/test')
+
+subdir('doc/src/sgml')
+
+
+if host_machine.system() == 'darwin'
+  meson.add_install_script('src/tools/relativize_shared_library_references')
+endif
+
+
+
+###############################################################
+# Test prep
+###############################################################
+
+# The determination of where a DESTDIR install points to is ugly, it's somewhat hard
+# to combine two absolute paths portably...
+
+prefix = get_option('prefix')
+
+test_prefix = prefix
+
+if fs.is_absolute(get_option('prefix'))
+  if host_machine.system() == 'windows'
+    if prefix.split(':\\').length() == 1
+        # just a drive
+        test_prefix = ''
+    else
+        test_prefix = prefix.split(':\\')[1]
+    endif
+  else
+    test_prefix = prefix.substring(1)
+  endif
+endif
+
+# DESTDIR for the installation used to run tests in
+test_install_destdir = meson.build_root() / 'tmp_install/'
+# DESTDIR + prefix appropriately munged
+test_install_location = test_install_destdir / test_prefix
+
+
+test('tmp_install',
+    meson_bin, args: meson_args + ['install', '--quiet', '--only-changed', '--no-rebuild'],
+    env: {'DESTDIR':test_install_destdir},
+    priority: 100,
+    is_parallel: false,
+    suite: ['setup'])
+
+test_result_dir = meson.build_root() / 'testrun'
+
+
+# XXX: pg_regress doesn't assign unique ports on windows. To avoid the
+# inevitable conflicts from running tests in parallel, hackishly assign
+# different ports for different tests.
+
+testport=40000
+
+test_env = environment()
+
+test_env.prepend('PATH', test_install_location / get_option('bindir'))
+test_env.set('PG_REGRESS', meson.build_root() / 'src/test/regress/pg_regress')
+test_env.set('REGRESS_SHLIB', regress_module.full_path())
+
+
+
+###############################################################
+# Test Generation
+###############################################################
+
+# Define all 'pg_regress' style tests
+foreach t : regress_tests
+  test_command = [
+    pg_regress,
+    '--temp-instance', test_result_dir / t['name'] / 'pg_regress' / 'tmp_check',
+    '--inputdir', t['sd'],
+    '--outputdir', test_result_dir / t['name'] / 'pg_regress',
+    '--bindir', '',
+    '--dlpath', t['bd'],
+    '--max-concurrent-tests=20',
+    '--port=@0@'.format(testport),
+  ]
+
+  if t.has_key('regress_args')
+     test_command += t['regress_args']
+  endif
+
+  if t.has_key('schedule')
+     test_command += ['--schedule', t['schedule'],]
+  else
+     test_command += t['sql']
+  endif
+
+  test_kwargs = {
+    'suite': ['pg_regress', t['name']],
+    'priority': 10,
+    'timeout': 300,
+    'depends': test_deps + t.get('deps', []),
+    'env': test_env,
+    'workdir': t['sd'],
+    'args': [
+      meson.build_root(),
+      t['bd'],
+      t['name'],
+      'pg_regress',
+      test_command,
+    ]
+  }
+
+  # Allow test definition to override arguments
+  if t.has_key('test_kwargs')
+     test_kwargs += t['test_kwargs']
+  endif
+
+  test(t['name'] / 'pg_regress',
+    testwrap,
+    kwargs: test_kwargs,
+  )
+
+  testport = testport + 1
+endforeach
+
+
+# Define all 'isolationtester' style tests
+foreach t : isolation_tests
+  test_command = [
+    pg_isolation_regress,
+    '--temp-instance', test_result_dir / t['name'] / 'isolation' / 'tmp_check',
+    '--inputdir', t['sd'],
+    '--outputdir', test_result_dir / t['name'] / 'isolation',
+    '--bindir', '',
+    '--dlpath', t['bd'],
+    '--max-concurrent-tests=20',
+    '--port=@0@'.format(testport),
+  ]
+
+  if t.has_key('regress_args')
+     test_command += t['regress_args']
+  endif
+
+  if t.has_key('schedule')
+     test_command += ['--schedule', t['schedule'],]
+  else
+     test_command += t['specs']
+  endif
+
+  test_kwargs = {
+    'suite': ['isolation', t['name']],
+    'priority': 20,
+    'timeout': 300,
+    'depends': test_deps + t.get('deps', []),
+    'workdir': t['sd'],
+    'env': test_env,
+    'args': [
+      meson.build_root(),
+      t['bd'],
+      t['name'],
+      'isolation',
+      test_command,
+    ]
+  }
+
+  # Allow test definition to override arguments
+  if t.has_key('test_kwargs')
+     test_kwargs += t['test_kwargs']
+  endif
+
+  test(t['name'] / 'isolation',
+    testwrap,
+    kwargs: test_kwargs,
+  )
+
+  testport = testport + 1
+endforeach
+
+
+# Define all 'tap' style tests
+# FIXME: dependencies for each test
+foreach t : tap_tests
+  env = test_env
+
+  foreach name, value : t.get('env', {})
+    if name == 'PATH'
+      # FIXME: manually setting PATH again, because repeated prepend didn't work
+      # before meson 0.58.
+      env.prepend('PATH', value, test_install_location / get_option('bindir'))
+    else
+      env.set(name, value)
+    endif
+  endforeach
+
+  foreach onetap : t['tests']
+    test(t['name'] / onetap,
+      testwrap,
+      workdir: t['sd'],
+      args: [
+        meson.build_root(),
+        t['bd'],
+        t['name'],
+        onetap,
+        'perl',
+        '-I', meson.source_root() / 'src/test/perl',
+        '-I', t['sd'],
+        t['sd'] / onetap
+      ],
+      protocol: 'tap',
+      suite: ['tap', t['name']],
+      env: env,
+      depends: test_deps + t.get('deps', []),
+      timeout: 300,
+      )
+  endforeach
+endforeach
+
+
+
+###############################################################
+# Pseudo targets
+###############################################################
+
+alias_target('backend', backend_targets)
+
+
+
+###############################################################
+# The End, The End, My Friend
+###############################################################
+
+if meson.version().version_compare('>=0.57')
+
+  summary({
+    'Data Block Size' : cdata.get('BLCKSZ'),
+    'WAL Block Size' : cdata.get('XLOG_BLCKSZ')
+    }, section: 'Data Layout'
+  )
+
+  summary(
+    {
+      'host system' : '@0@ @1@'.format(host_machine.system(), host_machine.cpu_family()),
+      'build system' : '@0@ @1@'.format(build_machine.system(), build_machine.cpu_family()),
+    },
+    section: 'System'
+  )
+
+  summary(
+    {
+      'linker': '@0@'.format(cc.get_linker_id()),
+      'C compiler': '@0@ @1@'.format(cc.get_id(), cc.version()),
+    },
+    section: 'Compiler'
+  )
+
+  if llvm.found()
+    summary(
+      {
+        'C++ compiler': '@0@ @1@'.format(cpp.get_id(), cpp.version())
+      },
+      section: 'Compiler')
+  endif
+
+  summary(
+    {
+      'bison' : '@0@ @1@'.format(bison.full_path(), bison_version),
+    },
+    section: 'Programs'
+  )
+
+  summary(
+    {
+      'GSS': gssapi,
+      'LDAP': ldap,
+      'LLVM': llvm,
+      'icu': icu,
+      'libxml': libxml,
+      'libxslt': libxslt,
+      'lz4': lz4,
+      'perl': perl_dep,
+      'python3': python3,
+      'readline': readline,
+      'selinux': selinux,
+      'ssl': ssl,
+      'systemd': systemd,
+      'uuid': uuid,
+      'zlib': zlib,
+    },
+    section: 'External Libraries'
+  )
+
+endif
diff --git a/meson_options.txt b/meson_options.txt
new file mode 100644
index 00000000000..d80d8fa5820
--- /dev/null
+++ b/meson_options.txt
@@ -0,0 +1,90 @@
+# Data layout influencing options
+option('BLCKSZ', type : 'combo', choices : ['1', '2', '4', '8', '16', '32'], value : '8',
+  description: 'set table block size in kB')
+
+
+# You get it
+option('cassert', type : 'boolean', value: false,
+  description: 'enable assertion checks (for debugging)')
+
+option('atomics', type : 'boolean', value: true,
+  description: 'whether to use atomic operations')
+
+
+# Compilation options
+
+option('extra_include_dirs', type : 'array',
+  description: 'non-default directories to be searched for headers')
+option('extra_lib_dirs', type : 'array',
+  description: 'non-default directories to be searched for libs')
+
+
+# External dependencies
+
+option('gssapi', type : 'feature', value: 'auto',
+  description: 'GSSAPI support')
+
+option('ldap', type : 'feature', value: 'auto',
+  description: 'LDAP support')
+
+option('llvm', type : 'feature', value: 'disabled',
+  description: 'whether to use llvm')
+
+option('icu', type : 'feature', value: 'auto',
+  description: 'ICU support')
+
+option('libxml', type : 'feature', value: 'auto',
+  description: 'XML support')
+
+option('libxslt', type : 'feature', value: 'auto',
+  description: 'XSLT support in contrib/xml2')
+
+option('lz4', type : 'feature', value: 'auto',
+  description: 'LZ4 support')
+
+option('perl', type : 'feature', value: 'auto',
+  description: 'build Perl modules (PL/Perl)')
+
+option('python', type : 'feature', value: 'auto',
+  description: 'build Python modules (PL/Python)')
+
+option('readline', type : 'feature', value : 'auto',
+  description: 'use GNU Readline or BSD Libedit for editing')
+
+option('selinux', type : 'feature', value : 'disabled',
+  description: 'build with SELinux support')
+
+option('ssl', type : 'combo', choices : ['none', 'openssl'], value : 'none',
+  description: 'use LIB for SSL/TLS support (openssl)')
+
+option('systemd', type : 'feature', value: 'auto',
+  description: 'build with systemd support')
+
+option('uuid', type : 'combo', choices : ['none', 'bsd', 'e2fs', 'ossp'], value : 'none',
+  description: 'build contrib/uuid-ossp using LIB')
+
+option('zlib', type : 'feature', value: 'auto',
+  description: 'whether to use zlib')
+
+
+# Programs
+option('BISON', type : 'string', value: 'bison',
+  description: 'path to bison binary')
+
+option('FLEX', type : 'string', value: 'flex',
+  description: 'path to flex binary')
+
+option('GZIP', type : 'string', value: 'gzip',
+  description: 'path to gzip binary')
+
+option('PERL', type : 'string', value: 'perl',
+  description: 'path to perl binary')
+
+option('PROVE', type : 'string', value: 'prove',
+  description: 'path to prove binary')
+
+option('SED', type : 'string', value: 'gsed',
+  description: 'path to sed binary')
+
+option('TAR', type : 'string', value: 'tar',
+  description: 'path to tar binary')
diff --git a/src/backend/access/brin/meson.build b/src/backend/access/brin/meson.build
new file mode 100644
index 00000000000..a54c7532927
--- /dev/null
+++ b/src/backend/access/brin/meson.build
@@ -0,0 +1,12 @@
+backend_sources += files(
+  'brin.c',
+  'brin_bloom.c',
+  'brin_inclusion.c',
+  'brin_minmax.c',
+  'brin_minmax_multi.c',
+  'brin_pageops.c',
+  'brin_revmap.c',
+  'brin_tuple.c',
+  'brin_validate.c',
+  'brin_xlog.c',
+)
diff --git a/src/backend/access/common/meson.build b/src/backend/access/common/meson.build
new file mode 100644
index 00000000000..857beaa32d3
--- /dev/null
+++ b/src/backend/access/common/meson.build
@@ -0,0 +1,18 @@
+backend_sources += files(
+  'attmap.c',
+  'bufmask.c',
+  'detoast.c',
+  'heaptuple.c',
+  'indextuple.c',
+  'printsimple.c',
+  'printtup.c',
+  'relation.c',
+  'reloptions.c',
+  'scankey.c',
+  'session.c',
+  'syncscan.c',
+  'toast_compression.c',
+  'toast_internals.c',
+  'tupconvert.c',
+  'tupdesc.c',
+)
diff --git a/src/backend/access/gin/meson.build b/src/backend/access/gin/meson.build
new file mode 100644
index 00000000000..56d6f343d54
--- /dev/null
+++ b/src/backend/access/gin/meson.build
@@ -0,0 +1,17 @@
+backend_sources += files(
+  'ginarrayproc.c',
+  'ginbtree.c',
+  'ginbulk.c',
+  'gindatapage.c',
+  'ginentrypage.c',
+  'ginfast.c',
+  'ginget.c',
+  'gininsert.c',
+  'ginlogic.c',
+  'ginpostinglist.c',
+  'ginscan.c',
+  'ginutil.c',
+  'ginvacuum.c',
+  'ginvalidate.c',
+  'ginxlog.c',
+)
diff --git a/src/backend/access/gist/meson.build b/src/backend/access/gist/meson.build
new file mode 100644
index 00000000000..1a996b5e25d
--- /dev/null
+++ b/src/backend/access/gist/meson.build
@@ -0,0 +1,13 @@
+backend_sources += files(
+  'gist.c',
+  'gistbuild.c',
+  'gistbuildbuffers.c',
+  'gistget.c',
+  'gistproc.c',
+  'gistscan.c',
+  'gistsplit.c',
+  'gistutil.c',
+  'gistvacuum.c',
+  'gistvalidate.c',
+  'gistxlog.c',
+)
diff --git a/src/backend/access/hash/meson.build b/src/backend/access/hash/meson.build
new file mode 100644
index 00000000000..22f2c691c34
--- /dev/null
+++ b/src/backend/access/hash/meson.build
@@ -0,0 +1,12 @@
+backend_sources += files(
+  'hash.c',
+  'hash_xlog.c',
+  'hashfunc.c',
+  'hashinsert.c',
+  'hashovfl.c',
+  'hashpage.c',
+  'hashsearch.c',
+  'hashsort.c',
+  'hashutil.c',
+  'hashvalidate.c',
+)
diff --git a/src/backend/access/heap/meson.build b/src/backend/access/heap/meson.build
new file mode 100644
index 00000000000..f1dca73743c
--- /dev/null
+++ b/src/backend/access/heap/meson.build
@@ -0,0 +1,11 @@
+backend_sources += files(
+  'heapam.c',
+  'heapam_handler.c',
+  'heapam_visibility.c',
+  'heaptoast.c',
+  'hio.c',
+  'pruneheap.c',
+  'rewriteheap.c',
+  'vacuumlazy.c',
+  'visibilitymap.c',
+)
diff --git a/src/backend/access/index/meson.build b/src/backend/access/index/meson.build
new file mode 100644
index 00000000000..18af5533e65
--- /dev/null
+++ b/src/backend/access/index/meson.build
@@ -0,0 +1,6 @@
+backend_sources += files(
+  'amapi.c',
+  'amvalidate.c',
+  'genam.c',
+  'indexam.c',
+)
diff --git a/src/backend/access/meson.build b/src/backend/access/meson.build
new file mode 100644
index 00000000000..9874291fc0a
--- /dev/null
+++ b/src/backend/access/meson.build
@@ -0,0 +1,13 @@
+subdir('brin')
+subdir('common')
+subdir('gin')
+subdir('gist')
+subdir('hash')
+subdir('heap')
+subdir('index')
+subdir('nbtree')
+subdir('rmgrdesc')
+subdir('spgist')
+subdir('table')
+subdir('tablesample')
+subdir('transam')
diff --git a/src/backend/access/nbtree/meson.build b/src/backend/access/nbtree/meson.build
new file mode 100644
index 00000000000..07dc29e8190
--- /dev/null
+++ b/src/backend/access/nbtree/meson.build
@@ -0,0 +1,13 @@
+backend_sources += files(
+  'nbtcompare.c',
+  'nbtdedup.c',
+  'nbtinsert.c',
+  'nbtpage.c',
+  'nbtree.c',
+  'nbtsearch.c',
+  'nbtsort.c',
+  'nbtsplitloc.c',
+  'nbtutils.c',
+  'nbtvalidate.c',
+  'nbtxlog.c',
+)
diff --git a/src/backend/access/rmgrdesc/meson.build b/src/backend/access/rmgrdesc/meson.build
new file mode 100644
index 00000000000..f3a6e0a571b
--- /dev/null
+++ b/src/backend/access/rmgrdesc/meson.build
@@ -0,0 +1,26 @@
+# used by frontend programs like pg_waldump
+rmgr_desc_sources = files(
+  'brindesc.c',
+  'clogdesc.c',
+  'committsdesc.c',
+  'dbasedesc.c',
+  'genericdesc.c',
+  'gindesc.c',
+  'gistdesc.c',
+  'hashdesc.c',
+  'heapdesc.c',
+  'logicalmsgdesc.c',
+  'mxactdesc.c',
+  'nbtdesc.c',
+  'relmapdesc.c',
+  'replorigindesc.c',
+  'seqdesc.c',
+  'smgrdesc.c',
+  'spgdesc.c',
+  'standbydesc.c',
+  'tblspcdesc.c',
+  'xactdesc.c',
+  'xlogdesc.c',
+)
+
+backend_sources += rmgr_desc_sources
diff --git a/src/backend/access/spgist/meson.build b/src/backend/access/spgist/meson.build
new file mode 100644
index 00000000000..f18d0d2e53f
--- /dev/null
+++ b/src/backend/access/spgist/meson.build
@@ -0,0 +1,13 @@
+backend_sources += files(
+  'spgdoinsert.c',
+  'spginsert.c',
+  'spgkdtreeproc.c',
+  'spgproc.c',
+  'spgquadtreeproc.c',
+  'spgscan.c',
+  'spgtextproc.c',
+  'spgutils.c',
+  'spgvacuum.c',
+  'spgvalidate.c',
+  'spgxlog.c',
+)
diff --git a/src/backend/access/table/meson.build b/src/backend/access/table/meson.build
new file mode 100644
index 00000000000..66c706d640e
--- /dev/null
+++ b/src/backend/access/table/meson.build
@@ -0,0 +1,6 @@
+backend_sources += files(
+  'table.c',
+  'tableam.c',
+  'tableamapi.c',
+  'toast_helper.c',
+)
diff --git a/src/backend/access/tablesample/meson.build b/src/backend/access/tablesample/meson.build
new file mode 100644
index 00000000000..63ee8203226
--- /dev/null
+++ b/src/backend/access/tablesample/meson.build
@@ -0,0 +1,5 @@
+backend_sources += files(
+  'bernoulli.c',
+  'system.c',
+  'tablesample.c',
+)
diff --git a/src/backend/access/transam/meson.build b/src/backend/access/transam/meson.build
new file mode 100644
index 00000000000..fe3703e0f21
--- /dev/null
+++ b/src/backend/access/transam/meson.build
@@ -0,0 +1,28 @@
+backend_sources += files(
+  'clog.c',
+  'commit_ts.c',
+  'generic_xlog.c',
+  'multixact.c',
+  'parallel.c',
+  'rmgr.c',
+  'slru.c',
+  'subtrans.c',
+  'timeline.c',
+  'transam.c',
+  'twophase.c',
+  'twophase_rmgr.c',
+  'varsup.c',
+  'xact.c',
+  'xlog.c',
+  'xlogarchive.c',
+  'xlogfuncs.c',
+  'xloginsert.c',
+  'xlogutils.c',
+)
+
+# used by frontend programs to built a frontend xlogreader
+xlogreader_sources = files(
+  'xlogreader.c',
+)
+
+backend_sources += xlogreader_sources
diff --git a/src/backend/bootstrap/meson.build b/src/backend/bootstrap/meson.build
new file mode 100644
index 00000000000..55c0be68cc4
--- /dev/null
+++ b/src/backend/bootstrap/meson.build
@@ -0,0 +1,12 @@
+backend_sources += files(
+ 'bootstrap.c')
+
+bootscanner = custom_target('bootscanner',
+  input: ['bootscanner.l'],
+  output: ['bootscanner.c'],
+  command: [flex, '-o', '@OUTPUT@', '@INPUT@'])
+
+generated_backend_sources += custom_target('bootparse',
+  input: ['bootparse.y', bootscanner[0]],
+  output: ['bootparse.c'],
+  command: [bison, bisonflags, '-o', '@OUTPUT@', '@INPUT0@'])
diff --git a/src/backend/catalog/meson.build b/src/backend/catalog/meson.build
new file mode 100644
index 00000000000..2cc23582e35
--- /dev/null
+++ b/src/backend/catalog/meson.build
@@ -0,0 +1,41 @@
+backend_sources += files(
+  'aclchk.c',
+  'catalog.c',
+  'dependency.c',
+  'heap.c',
+  'index.c',
+  'indexing.c',
+  'namespace.c',
+  'objectaccess.c',
+  'objectaddress.c',
+  'partition.c',
+  'pg_aggregate.c',
+  'pg_cast.c',
+  'pg_class.c',
+  'pg_collation.c',
+  'pg_constraint.c',
+  'pg_conversion.c',
+  'pg_db_role_setting.c',
+  'pg_depend.c',
+  'pg_enum.c',
+  'pg_inherits.c',
+  'pg_largeobject.c',
+  'pg_namespace.c',
+  'pg_operator.c',
+  'pg_proc.c',
+  'pg_publication.c',
+  'pg_range.c',
+  'pg_shdepend.c',
+  'pg_subscription.c',
+  'pg_type.c',
+  'storage.c',
+  'toasting.c',
+)
+
+
+install_data(
+  'information_schema.sql',
+  'sql_features.txt',
+  'system_functions.sql',
+  'system_views.sql',
+  install_dir: 'share/')
diff --git a/src/backend/commands/meson.build b/src/backend/commands/meson.build
new file mode 100644
index 00000000000..8e73b29a263
--- /dev/null
+++ b/src/backend/commands/meson.build
@@ -0,0 +1,50 @@
+backend_sources += files(
+  'aggregatecmds.c',
+  'alter.c',
+  'amcmds.c',
+  'analyze.c',
+  'async.c',
+  'cluster.c',
+  'collationcmds.c',
+  'comment.c',
+  'constraint.c',
+  'conversioncmds.c',
+  'copy.c',
+  'copyfrom.c',
+  'copyfromparse.c',
+  'copyto.c',
+  'createas.c',
+  'dbcommands.c',
+  'define.c',
+  'discard.c',
+  'dropcmds.c',
+  'event_trigger.c',
+  'explain.c',
+  'extension.c',
+  'foreigncmds.c',
+  'functioncmds.c',
+  'indexcmds.c',
+  'lockcmds.c',
+  'matview.c',
+  'opclasscmds.c',
+  'operatorcmds.c',
+  'policy.c',
+  'portalcmds.c',
+  'prepare.c',
+  'proclang.c',
+  'publicationcmds.c',
+  'schemacmds.c',
+  'seclabel.c',
+  'sequence.c',
+  'statscmds.c',
+  'subscriptioncmds.c',
+  'tablecmds.c',
+  'tablespace.c',
+  'trigger.c',
+  'tsearchcmds.c',
+  'typecmds.c',
+  'user.c',
+  'vacuum.c',
+  'variable.c',
+  'view.c',
+)
diff --git a/src/backend/executor/meson.build b/src/backend/executor/meson.build
new file mode 100644
index 00000000000..518674cfa28
--- /dev/null
+++ b/src/backend/executor/meson.build
@@ -0,0 +1,67 @@
+backend_sources += files(
+  'execAmi.c',
+  'execAsync.c',
+  'execCurrent.c',
+  'execExpr.c',
+  'execExprInterp.c',
+  'execGrouping.c',
+  'execIndexing.c',
+  'execJunk.c',
+  'execMain.c',
+  'execParallel.c',
+  'execPartition.c',
+  'execProcnode.c',
+  'execReplication.c',
+  'execSRF.c',
+  'execScan.c',
+  'execTuples.c',
+  'execUtils.c',
+  'functions.c',
+  'instrument.c',
+  'nodeAgg.c',
+  'nodeAppend.c',
+  'nodeBitmapAnd.c',
+  'nodeBitmapHeapscan.c',
+  'nodeBitmapIndexscan.c',
+  'nodeBitmapOr.c',
+  'nodeCtescan.c',
+  'nodeCustom.c',
+  'nodeForeignscan.c',
+  'nodeFunctionscan.c',
+  'nodeGather.c',
+  'nodeGatherMerge.c',
+  'nodeGroup.c',
+  'nodeHash.c',
+  'nodeHashjoin.c',
+  'nodeIncrementalSort.c',
+  'nodeIndexonlyscan.c',
+  'nodeIndexscan.c',
+  'nodeLimit.c',
+  'nodeLockRows.c',
+  'nodeMaterial.c',
+  'nodeMemoize.c',
+  'nodeMergeAppend.c',
+  'nodeMergejoin.c',
+  'nodeModifyTable.c',
+  'nodeNamedtuplestorescan.c',
+  'nodeNestloop.c',
+  'nodeProjectSet.c',
+  'nodeRecursiveunion.c',
+  'nodeResult.c',
+  'nodeSamplescan.c',
+  'nodeSeqscan.c',
+  'nodeSetOp.c',
+  'nodeSort.c',
+  'nodeSubplan.c',
+  'nodeSubqueryscan.c',
+  'nodeTableFuncscan.c',
+  'nodeTidrangescan.c',
+  'nodeTidscan.c',
+  'nodeUnique.c',
+  'nodeValuesscan.c',
+  'nodeWindowAgg.c',
+  'nodeWorktablescan.c',
+  'spi.c',
+  'tqueue.c',
+  'tstoreReceiver.c',
+)
diff --git a/src/backend/foreign/meson.build b/src/backend/foreign/meson.build
new file mode 100644
index 00000000000..57463db92c1
--- /dev/null
+++ b/src/backend/foreign/meson.build
@@ -0,0 +1,3 @@
+backend_sources += files(
+  'foreign.c'
+)
diff --git a/src/backend/jit/llvm/meson.build b/src/backend/jit/llvm/meson.build
new file mode 100644
index 00000000000..83a90770bca
--- /dev/null
+++ b/src/backend/jit/llvm/meson.build
@@ -0,0 +1,41 @@
+if llvm.found()
+
+  llvmjit_sources = []
+
+  # Infrastructure
+  llvmjit_sources += files(
+    'llvmjit.c',
+    'llvmjit_error.cpp',
+    'llvmjit_inline.cpp',
+    'llvmjit_wrap.cpp',
+  )
+
+  # Code generation
+  llvmjit_sources += files(
+    'llvmjit_deform.c',
+    'llvmjit_expr.c',
+  )
+
+  llvmjit = shared_module('llvmjit',
+    llvmjit_sources,
+    kwargs: pg_mod_args + {
+      'dependencies': pg_mod_args['dependencies'] + [llvm],
+    }
+  )
+
+  backend_targets += llvmjit
+
+  # Note this is intentionally is not installed to bitcodedir, as it's not
+  # for inlining
+  llvmjit_types = custom_target('llvmjit_types.bc',
+    kwargs: llvm_irgen_kw + {
+      'input': 'llvmjit_types.c',
+      'output': 'llvmjit_types.bc',
+      'depends': [postgres],
+      'install': true,
+      'install_dir': get_option('libdir')
+    }
+  )
+  backend_targets += llvmjit_types
+
+endif
diff --git a/src/backend/jit/meson.build b/src/backend/jit/meson.build
new file mode 100644
index 00000000000..63cd33a4bed
--- /dev/null
+++ b/src/backend/jit/meson.build
@@ -0,0 +1,3 @@
+backend_sources += files(
+  'jit.c'
+)
diff --git a/src/backend/lib/meson.build b/src/backend/lib/meson.build
new file mode 100644
index 00000000000..53292563d34
--- /dev/null
+++ b/src/backend/lib/meson.build
@@ -0,0 +1,12 @@
+backend_sources += files(
+  'binaryheap.c',
+  'bipartite_match.c',
+  'bloomfilter.c',
+  'dshash.c',
+  'hyperloglog.c',
+  'ilist.c',
+  'integerset.c',
+  'knapsack.c',
+  'pairingheap.c',
+  'rbtree.c'
+)
diff --git a/src/backend/libpq/meson.build b/src/backend/libpq/meson.build
new file mode 100644
index 00000000000..49867647155
--- /dev/null
+++ b/src/backend/libpq/meson.build
@@ -0,0 +1,28 @@
+backend_sources += files(
+  'auth-sasl.c',
+  'auth-scram.c',
+  'auth.c',
+  'be-fsstubs.c',
+  'be-secure-common.c',
+  'be-secure.c',
+  'crypt.c',
+  'hba.c',
+  'ifaddr.c',
+  'pqcomm.c',
+  'pqformat.c',
+  'pqmq.c',
+  'pqsignal.c',
+)
+
+if ssl.found()
+  backend_sources += files('be-secure-openssl.c')
+endif
+
+if gssapi.found()
+  backend_sources += files(
+    'be-secure-gssapi.c',
+    'be-gssapi-common.c'
+  )
+endif
+
+install_data('pg_hba.conf.sample', 'pg_ident.conf.sample', install_dir: 'share/')
diff --git a/src/backend/main/meson.build b/src/backend/main/meson.build
new file mode 100644
index 00000000000..241e125f089
--- /dev/null
+++ b/src/backend/main/meson.build
@@ -0,0 +1,2 @@
+main_file = files('main.c')
+backend_sources += main_file
diff --git a/src/backend/meson.build b/src/backend/meson.build
new file mode 100644
index 00000000000..0098411c6b2
--- /dev/null
+++ b/src/backend/meson.build
@@ -0,0 +1,197 @@
+backend_build_deps = [backend_code]
+backend_deps = [dl_dep, thread_dep]
+backend_sources = []
+backend_link_with = [pgport_srv, common_srv]
+backend_c_args = []
+
+generated_backend_sources = []
+
+subdir('access')
+subdir('bootstrap')
+subdir('catalog')
+subdir('commands')
+subdir('executor')
+subdir('foreign')
+subdir('jit')
+subdir('lib')
+subdir('libpq')
+subdir('main')
+subdir('nodes')
+subdir('optimizer')
+subdir('parser')
+subdir('partitioning')
+subdir('port')
+subdir('postmaster')
+subdir('regex')
+subdir('replication')
+subdir('rewrite')
+subdir('statistics')
+subdir('storage')
+subdir('tcop')
+subdir('tsearch')
+subdir('utils')
+
+
+postgres_link_args = []
+postgres_link_depends = []
+
+if host_machine.system() == 'windows'
+  backend_deps += cc.find_library('secur32', required: true)
+
+  if cc.get_id() == 'msvc'
+    postgres_link_args += '/STACK:@0@'.format(cdata.get('WIN32_STACK_RLIMIT'))
+  else
+    postgres_link_args += '-Wl,--stack,@0@'.format(cdata.get('WIN32_STACK_RLIMIT'))
+  endif
+endif
+
+
+# On windows when compiling with msvc we need to make postgres export all its
+# symbols so that extension libraries can use them. For that we need to scan
+# the constituting objects and generate a file specifying all the functions as
+# exported (variables need an "import" declaration in the header, hence
+# PGDLLEXPORT, but functions work without that, due to import libraries
+# basically being trampolines).
+#
+#
+# On meson there's currently no easy way to do this that I found. So we build
+# a static library with all the input objects, run our script to generate
+# exports, and build the final executable using that static library
+#
+#
+# XXX: This needs to be improved.
+#
+
+# NB: There's an outer and inner layer of == windows checks, to allow to
+# exercise most of this on !windows, by widening the outer "layer".
+
+if cc.get_id() == 'msvc' # or true
+
+  postgres_lib = static_library('postgres_lib',
+    backend_sources + timezone_sources + generated_backend_sources,
+    link_whole: backend_link_with,
+    c_pch: '../include/pch/postgres_pch.h',
+    c_args: backend_c_args,
+    implicit_include_directories: false,
+    dependencies: backend_build_deps,
+    build_by_default: false,
+    install: false,
+  )
+
+  postgres_def = custom_target('postgres.def',
+    command: [perl, files('../tools/msvc/gendef2.pl'), 'x64', '@OUTPUT@', '@PRIVATE_DIR@', '@INPUT@'],
+    input: [postgres_lib, common_srv, pgport_srv],
+    output: 'postgres.def',
+    depends: [postgres_lib, common_srv, pgport_srv],
+    install: false,
+  )
+
+  if cc.get_id() == 'msvc'
+    postgres_link_args += '/DEF:@0@'.format(postgres_def.full_path())
+    postgres_link_depends += postgres_def
+  endif
+
+  # Unfortunately the msvc linker whines when building an executable with just
+  # libraries, hence the reuse of the 'main' object directly.
+
+  postgres = executable('postgres',
+    objects: [postgres_lib.extract_objects(main_file)],
+    link_with: [postgres_lib],
+    link_args: postgres_link_args,
+    link_depends: postgres_link_depends,
+    dependencies: backend_deps,
+    export_dynamic: true,
+    implib: true,
+    kwargs: default_bin_args,
+  )
+
+else
+
+  postgres = executable('postgres',
+    backend_sources + generated_backend_sources + timezone_sources,
+    c_pch: '../include/pch/postgres_pch.h',
+    c_args: backend_c_args,
+    link_args: postgres_link_args,
+    link_with: backend_link_with,
+    export_dynamic: true,
+    dependencies: [backend_build_deps, backend_deps],
+    kwargs: default_bin_args,
+  )
+
+endif
+
+backend_targets += postgres
+
+pg_mod_args = default_mod_args + {
+  'dependencies': [backend_mod_code],
+  'c_args': [],
+  'cpp_args': [],
+ }
+
+if cdata.has('HAVE_VISIBILITY_ATTRIBUTE')
+  pg_mod_args = pg_mod_args + {
+    'c_args': pg_mod_args['c_args'] + ['-fvisibility=hidden'],
+    'cpp_args': pg_mod_args['c_args'] + ['-fvisibility=hidden', '-fvisibility-inlines-hidden'],
+  }
+endif
+
+# Windows / MacOs link shared modules against postgres. To avoid unnecessary
+# build-time dependencies on other operating systems, only add it when
+# necessary.
+if host_machine.system() == 'windows' or host_machine.system() == 'darwin'
+   pg_mod_args = pg_mod_args + {'link_with': [postgres]}
+endif
+if host_machine.system() == 'darwin'
+   pg_mod_args = pg_mod_args + {'link_args': ['-bundle_loader', '@0@'.format(postgres.full_path())]}
+endif
+
+
+# Shared modules that, on some OSs, link against the server binary. Only enter
+# these after we defined the server build.
+
+subdir('jit/llvm')
+subdir('replication/libpqwalreceiver')
+subdir('replication/pgoutput')
+subdir('snowball')
+subdir('utils/mb/conversion_procs')
+
+
+if llvm.found()
+
+  # custom_target() insists on targetting files into the current
+  # directory. But we have files with the same name in different
+  # subdirectories.  generators() don't have that problem, but their results
+  # are not installable. The irlink command copies the files for us.
+  #
+  # FIXME: this needs to be in a central place
+  #
+  # generator and custom_'t accept CustomTargetIndex as 'depends', nor do they
+  # like targets with more than one output. However, a custom target accepts
+  # them as input without a problem. So we have the below transitive target :(
+
+  transitive_depend_target = custom_target('stamp',
+    input: generated_headers + generated_backend_headers + generated_backend_sources,
+    output: 'stamp',
+    command: [touch, '@OUTPUT@'],
+    install: false)
+
+  llvm_gen = generator(llvm_irgen_command,
+    arguments: llvm_irgen_args + g_c_args,
+    depends: transitive_depend_target,
+    depfile: '@BASENAME@.c.bc.d',
+    output: ['@PLAINNAME@.bc']
+  )
+
+  bc_backend_sources = llvm_gen.process(backend_sources,
+    preserve_path_from: meson.current_source_dir())
+
+  postgres_llvm = custom_target('postgres.index.bc',
+    kwargs: llvm_irlink_kw + {
+      'input': bc_backend_sources,
+      'output': ['bitcode'],
+      },
+  )
+
+  backend_targets += postgres_llvm
+
+endif
diff --git a/src/backend/nodes/meson.build b/src/backend/nodes/meson.build
new file mode 100644
index 00000000000..9fca83fba44
--- /dev/null
+++ b/src/backend/nodes/meson.build
@@ -0,0 +1,17 @@
+backend_sources += files(
+  'bitmapset.c',
+  'copyfuncs.c',
+  'equalfuncs.c',
+  'extensible.c',
+  'list.c',
+  'makefuncs.c',
+  'nodeFuncs.c',
+  'nodes.c',
+  'outfuncs.c',
+  'params.c',
+  'print.c',
+  'read.c',
+  'readfuncs.c',
+  'tidbitmap.c',
+  'value.c',
+)
diff --git a/src/backend/optimizer/geqo/meson.build b/src/backend/optimizer/geqo/meson.build
new file mode 100644
index 00000000000..c04f1dc2dfd
--- /dev/null
+++ b/src/backend/optimizer/geqo/meson.build
@@ -0,0 +1,17 @@
+backend_sources += files(
+  'geqo_copy.c',
+  'geqo_cx.c',
+  'geqo_erx.c',
+  'geqo_eval.c',
+  'geqo_main.c',
+  'geqo_misc.c',
+  'geqo_mutation.c',
+  'geqo_ox1.c',
+  'geqo_ox2.c',
+  'geqo_pmx.c',
+  'geqo_pool.c',
+  'geqo_px.c',
+  'geqo_random.c',
+  'geqo_recombination.c',
+  'geqo_selection.c',
+)
diff --git a/src/backend/optimizer/meson.build b/src/backend/optimizer/meson.build
new file mode 100644
index 00000000000..1ab1d9934ae
--- /dev/null
+++ b/src/backend/optimizer/meson.build
@@ -0,0 +1,5 @@
+subdir('geqo')
+subdir('path')
+subdir('plan')
+subdir('prep')
+subdir('util')
diff --git a/src/backend/optimizer/path/meson.build b/src/backend/optimizer/path/meson.build
new file mode 100644
index 00000000000..310042e7aee
--- /dev/null
+++ b/src/backend/optimizer/path/meson.build
@@ -0,0 +1,11 @@
+backend_sources += files(
+  'allpaths.c',
+  'clausesel.c',
+  'costsize.c',
+  'equivclass.c',
+  'indxpath.c',
+  'joinpath.c',
+  'joinrels.c',
+  'pathkeys.c',
+  'tidpath.c',
+)
diff --git a/src/backend/optimizer/plan/meson.build b/src/backend/optimizer/plan/meson.build
new file mode 100644
index 00000000000..22ec65a3845
--- /dev/null
+++ b/src/backend/optimizer/plan/meson.build
@@ -0,0 +1,10 @@
+backend_sources += files(
+  'analyzejoins.c',
+  'createplan.c',
+  'initsplan.c',
+  'planagg.c',
+  'planmain.c',
+  'planner.c',
+  'setrefs.c',
+  'subselect.c',
+)
diff --git a/src/backend/optimizer/prep/meson.build b/src/backend/optimizer/prep/meson.build
new file mode 100644
index 00000000000..4549a5b0e79
--- /dev/null
+++ b/src/backend/optimizer/prep/meson.build
@@ -0,0 +1,7 @@
+backend_sources += files(
+  'prepagg.c',
+  'prepjointree.c',
+  'prepqual.c',
+  'preptlist.c',
+  'prepunion.c',
+)
diff --git a/src/backend/optimizer/util/meson.build b/src/backend/optimizer/util/meson.build
new file mode 100644
index 00000000000..e7ceaf566b5
--- /dev/null
+++ b/src/backend/optimizer/util/meson.build
@@ -0,0 +1,16 @@
+backend_sources += files(
+  'appendinfo.c',
+  'clauses.c',
+  'inherit.c',
+  'joininfo.c',
+  'orclauses.c',
+  'paramassign.c',
+  'pathnode.c',
+  'placeholder.c',
+  'plancat.c',
+  'predtest.c',
+  'relnode.c',
+  'restrictinfo.c',
+  'tlist.c',
+  'var.c',
+)
diff --git a/src/backend/parser/meson.build b/src/backend/parser/meson.build
new file mode 100644
index 00000000000..5ce4d09f31b
--- /dev/null
+++ b/src/backend/parser/meson.build
@@ -0,0 +1,43 @@
+backend_sources += files(
+  'analyze.c',
+  'parse_agg.c',
+  'parse_clause.c',
+  'parse_coerce.c',
+  'parse_collate.c',
+  'parse_cte.c',
+  'parse_enr.c',
+  'parse_expr.c',
+  'parse_func.c',
+  'parse_node.c',
+  'parse_oper.c',
+  'parse_param.c',
+  'parse_relation.c',
+  'parse_target.c',
+  'parse_type.c',
+  'parse_utilcmd.c',
+  'scansup.c',
+)
+
+# Build a small utility static lib for the parser. This makes it easier to not
+# depend on gram.h already having been generated for most of the other code
+# (which depends on generated headers having been generated). The generation
+# of the parser is slow...
+
+parser_sources = [files('parser.c')]
+
+backend_scanner = custom_target('scan',
+  input: ['scan.l'],
+  output: ['scan.c'],
+  command: [flex, '-b', '-CF', '-p', '-p', '-o', '@OUTPUT@', '@INPUT0@'])
+parser_sources += backend_scanner[0]
+
+parser_sources += backend_parser_header[0]
+parser_sources += backend_parser_header[1]
+
+parser = static_library('parser',
+  parser_sources + generated_headers,
+  c_pch: '../../include/pch/c_pch.h',
+  dependencies: [backend_code],
+  kwargs: default_lib_args + {'install': false},
+)
+backend_link_with += parser
diff --git a/src/backend/partitioning/meson.build b/src/backend/partitioning/meson.build
new file mode 100644
index 00000000000..e5e3806a0cc
--- /dev/null
+++ b/src/backend/partitioning/meson.build
@@ -0,0 +1,5 @@
+backend_sources += files(
+  'partbounds.c',
+  'partdesc.c',
+  'partprune.c',
+)
diff --git a/src/backend/port/meson.build b/src/backend/port/meson.build
new file mode 100644
index 00000000000..f1bf7f6d929
--- /dev/null
+++ b/src/backend/port/meson.build
@@ -0,0 +1,28 @@
+backend_sources += files(
+  'atomics.c',
+)
+
+
+if cdata.has('USE_UNNAMED_POSIX_SEMAPHORES') or cdata.has('USE_NAMED_POSIX_SEMAPHORES')
+   backend_sources += files('posix_sema.c')
+endif
+
+if cdata.has('USE_SYSV_SEMAPHORES')
+   backend_sources += files('sysv_sema.c')
+endif
+
+if cdata.has('USE_WIN32_SEMAPHORES')
+   backend_sources += files('win32_sema.c')
+endif
+
+if cdata.has('USE_SYSV_SHARED_MEMORY')
+   backend_sources += files('sysv_shmem.c')
+endif
+
+if cdata.has('USE_WIN32_SHARED_MEMORY')
+   backend_sources += files('win32_shmem.c')
+endif
+
+if host_machine.system() == 'windows'
+  subdir('win32')
+endif
diff --git a/src/backend/port/win32/meson.build b/src/backend/port/win32/meson.build
new file mode 100644
index 00000000000..68fe4cc3cd0
--- /dev/null
+++ b/src/backend/port/win32/meson.build
@@ -0,0 +1,6 @@
+backend_sources += files(
+  'crashdump.c',
+  'signal.c',
+  'socket.c',
+  'timer.c',
+)
diff --git a/src/backend/postmaster/meson.build b/src/backend/postmaster/meson.build
new file mode 100644
index 00000000000..803405683e2
--- /dev/null
+++ b/src/backend/postmaster/meson.build
@@ -0,0 +1,15 @@
+backend_sources += files(
+  'autovacuum.c',
+  'auxprocess.c',
+  'bgworker.c',
+  'bgwriter.c',
+  'checkpointer.c',
+  'fork_process.c',
+  'interrupt.c',
+  'pgarch.c',
+  'pgstat.c',
+  'postmaster.c',
+  'startup.c',
+  'syslogger.c',
+  'walwriter.c',
+)
diff --git a/src/backend/regex/meson.build b/src/backend/regex/meson.build
new file mode 100644
index 00000000000..d08e21cd6d6
--- /dev/null
+++ b/src/backend/regex/meson.build
@@ -0,0 +1,15 @@
+backend_sources += files(
+  'regcomp.c',
+  'regerror.c',
+  'regexec.c',
+  'regexport.c',
+  'regfree.c',
+  'regprefix.c'
+)
+
+#FIXME
+# mark inclusion dependencies between .c files explicitly
+#regcomp.o: regcomp.c regc_lex.c regc_color.c regc_nfa.c regc_cvec.c \
+#        regc_locale.c regc_pg_locale.c
+#
+#regexec.o: regexec.c rege_dfa.c
diff --git a/src/backend/replication/libpqwalreceiver/meson.build b/src/backend/replication/libpqwalreceiver/meson.build
new file mode 100644
index 00000000000..3fc786c80a0
--- /dev/null
+++ b/src/backend/replication/libpqwalreceiver/meson.build
@@ -0,0 +1,13 @@
+libpqwalreceiver_sources = files(
+  'libpqwalreceiver.c',
+)
+
+libpqwalreceiver = shared_module('pqwalreceiver',
+  libpqwalreceiver_sources,
+  kwargs: pg_mod_args + {
+    'name_prefix': 'lib',
+    'dependencies': pg_mod_args['dependencies'] + [libpq],
+  }
+)
+
+backend_targets += libpqwalreceiver
diff --git a/src/backend/replication/logical/meson.build b/src/backend/replication/logical/meson.build
new file mode 100644
index 00000000000..773583a12ba
--- /dev/null
+++ b/src/backend/replication/logical/meson.build
@@ -0,0 +1,14 @@
+backend_sources += files(
+  'decode.c',
+  'launcher.c',
+  'logical.c',
+  'logicalfuncs.c',
+  'message.c',
+  'origin.c',
+  'proto.c',
+  'relation.c',
+  'reorderbuffer.c',
+  'snapbuild.c',
+  'tablesync.c',
+  'worker.c',
+)
diff --git a/src/backend/replication/meson.build b/src/backend/replication/meson.build
new file mode 100644
index 00000000000..ee12c6d49da
--- /dev/null
+++ b/src/backend/replication/meson.build
@@ -0,0 +1,42 @@
+backend_sources += files(
+  'backup_manifest.c',
+  'basebackup.c',
+  'slot.c',
+  'slotfuncs.c',
+  'syncrep.c',
+  'walreceiver.c',
+  'walreceiverfuncs.c',
+  'walsender.c',
+)
+
+# [sync]repl_scanner is compiled as part of [sync]repl_gram. The
+# ordering is enforced by making the generation of grammar depend on
+# the scanner generation. That's unnecessarily strict, but overall
+# harmless.
+
+repl_scanner = custom_target('repl_scanner',
+  input : files('repl_scanner.l'),
+  output : ['repl_scanner.c'],
+  command: [flex, '-o', '@OUTPUT@', '@INPUT@']
+)
+
+generated_backend_sources += custom_target('repl_gram',
+  input: 'repl_gram.y',
+  output: 'repl_gram.c',
+  depends: repl_scanner,
+  command: [bison, bisonflags, '-o', '@OUTPUT@', '@INPUT0@'])
+
+
+syncrep_scanner = custom_target('syncrep_scanner',
+  input: 'syncrep_scanner.l',
+  output: 'syncrep_scanner.c',
+  command: [flex, '-o', '@OUTPUT@', '@INPUT@'])
+
+generated_backend_sources += custom_target('syncrep_gram',
+  input: 'syncrep_gram.y',
+  output: 'syncrep_gram.c',
+  depends: syncrep_scanner,
+  command: [bison, bisonflags, '-o', '@OUTPUT@', '@INPUT0@'])
+
+
+subdir('logical')
diff --git a/src/backend/replication/pgoutput/meson.build b/src/backend/replication/pgoutput/meson.build
new file mode 100644
index 00000000000..8ff0a0c6133
--- /dev/null
+++ b/src/backend/replication/pgoutput/meson.build
@@ -0,0 +1,11 @@
+pgoutput_sources = files(
+  'pgoutput.c',
+)
+
+pgoutput = shared_module('pgoutput',
+  pgoutput_sources,
+  kwargs: pg_mod_args + {
+  }
+)
+
+backend_targets += pgoutput
diff --git a/src/backend/rewrite/meson.build b/src/backend/rewrite/meson.build
new file mode 100644
index 00000000000..032e2e409b5
--- /dev/null
+++ b/src/backend/rewrite/meson.build
@@ -0,0 +1,9 @@
+backend_sources += files(
+  'rewriteDefine.c',
+  'rewriteHandler.c',
+  'rewriteManip.c',
+  'rewriteRemove.c',
+  'rewriteSearchCycle.c',
+  'rewriteSupport.c',
+  'rowsecurity.c'
+)
diff --git a/src/backend/snowball/meson.build b/src/backend/snowball/meson.build
new file mode 100644
index 00000000000..b1e52e9a0c3
--- /dev/null
+++ b/src/backend/snowball/meson.build
@@ -0,0 +1,83 @@
+dict_snowball_sources = files(
+  'dict_snowball.c',
+  'libstemmer/api.c',
+  'libstemmer/utilities.c',
+)
+
+dict_snowball_sources += files(
+  'libstemmer/stem_ISO_8859_1_basque.c',
+  'libstemmer/stem_ISO_8859_1_catalan.c',
+  'libstemmer/stem_ISO_8859_1_danish.c',
+  'libstemmer/stem_ISO_8859_1_dutch.c',
+  'libstemmer/stem_ISO_8859_1_english.c',
+  'libstemmer/stem_ISO_8859_1_finnish.c',
+  'libstemmer/stem_ISO_8859_1_french.c',
+  'libstemmer/stem_ISO_8859_1_german.c',
+  'libstemmer/stem_ISO_8859_1_indonesian.c',
+  'libstemmer/stem_ISO_8859_1_irish.c',
+  'libstemmer/stem_ISO_8859_1_italian.c',
+  'libstemmer/stem_ISO_8859_1_norwegian.c',
+  'libstemmer/stem_ISO_8859_1_porter.c',
+  'libstemmer/stem_ISO_8859_1_portuguese.c',
+  'libstemmer/stem_ISO_8859_1_spanish.c',
+  'libstemmer/stem_ISO_8859_1_swedish.c',
+  'libstemmer/stem_ISO_8859_2_hungarian.c',
+  'libstemmer/stem_ISO_8859_2_romanian.c',
+  'libstemmer/stem_KOI8_R_russian.c',
+  'libstemmer/stem_UTF_8_arabic.c',
+  'libstemmer/stem_UTF_8_armenian.c',
+  'libstemmer/stem_UTF_8_basque.c',
+  'libstemmer/stem_UTF_8_catalan.c',
+  'libstemmer/stem_UTF_8_danish.c',
+  'libstemmer/stem_UTF_8_dutch.c',
+  'libstemmer/stem_UTF_8_english.c',
+  'libstemmer/stem_UTF_8_finnish.c',
+  'libstemmer/stem_UTF_8_french.c',
+  'libstemmer/stem_UTF_8_german.c',
+  'libstemmer/stem_UTF_8_greek.c',
+  'libstemmer/stem_UTF_8_hindi.c',
+  'libstemmer/stem_UTF_8_hungarian.c',
+  'libstemmer/stem_UTF_8_indonesian.c',
+  'libstemmer/stem_UTF_8_irish.c',
+  'libstemmer/stem_UTF_8_italian.c',
+  'libstemmer/stem_UTF_8_lithuanian.c',
+  'libstemmer/stem_UTF_8_nepali.c',
+  'libstemmer/stem_UTF_8_norwegian.c',
+  'libstemmer/stem_UTF_8_porter.c',
+  'libstemmer/stem_UTF_8_portuguese.c',
+  'libstemmer/stem_UTF_8_romanian.c',
+  'libstemmer/stem_UTF_8_russian.c',
+  'libstemmer/stem_UTF_8_serbian.c',
+  'libstemmer/stem_UTF_8_spanish.c',
+  'libstemmer/stem_UTF_8_swedish.c',
+  'libstemmer/stem_UTF_8_tamil.c',
+  'libstemmer/stem_UTF_8_turkish.c',
+  'libstemmer/stem_UTF_8_yiddish.c',
+)
+
+# see comment in src/include/snowball/header.h
+stemmer_inc = include_directories('../../include/snowball')
+
+dict_snowball = shared_module('dict_snowball',
+  dict_snowball_sources,
+  c_pch: '../../include/pch/postgres_pch.h',
+  kwargs: pg_mod_args + {
+    'include_directories': [stemmer_inc],
+  }
+)
+
+snowball_create = custom_target('snowball_create',
+  input: ['snowball_create.pl'],
+  output: ['snowball_create.sql'],
+  depfile: 'snowball_create.dep',
+  command: [perl, '@INPUT0@', '--input', '@CURRENT_SOURCE_DIR@', '--output', '@OUTDIR@'],
+  install: true,
+  install_dir: get_option('datadir'))
+
+# FIXME: check whether the logic to select languages currently in Makefile is needed
+install_subdir('stopwords',
+  install_dir: get_option('datadir') / 'tsearch_data',
+  strip_directory: true)
+
+backend_targets += dict_snowball
+backend_targets += snowball_create
diff --git a/src/backend/statistics/meson.build b/src/backend/statistics/meson.build
new file mode 100644
index 00000000000..8530c55f73c
--- /dev/null
+++ b/src/backend/statistics/meson.build
@@ -0,0 +1,6 @@
+backend_sources += files(
+  'dependencies.c',
+  'extended_stats.c',
+  'mcv.c',
+  'mvdistinct.c',
+)
diff --git a/src/backend/storage/buffer/meson.build b/src/backend/storage/buffer/meson.build
new file mode 100644
index 00000000000..56a59b52484
--- /dev/null
+++ b/src/backend/storage/buffer/meson.build
@@ -0,0 +1,7 @@
+backend_sources += files(
+  'buf_init.c',
+  'buf_table.c',
+  'bufmgr.c',
+  'freelist.c',
+  'localbuf.c',
+)
diff --git a/src/backend/storage/file/meson.build b/src/backend/storage/file/meson.build
new file mode 100644
index 00000000000..e1d5047d4aa
--- /dev/null
+++ b/src/backend/storage/file/meson.build
@@ -0,0 +1,8 @@
+backend_sources += files(
+  'buffile.c',
+  'copydir.c',
+  'fd.c',
+  'fileset.c',
+  'reinit.c',
+  'sharedfileset.c',
+)
diff --git a/src/backend/storage/freespace/meson.build b/src/backend/storage/freespace/meson.build
new file mode 100644
index 00000000000..e4200ea6527
--- /dev/null
+++ b/src/backend/storage/freespace/meson.build
@@ -0,0 +1,5 @@
+backend_sources += files(
+  'freespace.c',
+  'fsmpage.c',
+  'indexfsm.c',
+)
diff --git a/src/backend/storage/ipc/meson.build b/src/backend/storage/ipc/meson.build
new file mode 100644
index 00000000000..516bc1d0193
--- /dev/null
+++ b/src/backend/storage/ipc/meson.build
@@ -0,0 +1,20 @@
+backend_sources += files(
+  'barrier.c',
+  'dsm.c',
+  'dsm_impl.c',
+  'ipc.c',
+  'ipci.c',
+  'latch.c',
+  'pmsignal.c',
+  'procarray.c',
+  'procsignal.c',
+  'shm_mq.c',
+  'shm_toc.c',
+  'shmem.c',
+  'shmqueue.c',
+  'signalfuncs.c',
+  'sinval.c',
+  'sinvaladt.c',
+  'standby.c',
+
+)
diff --git a/src/backend/storage/large_object/meson.build b/src/backend/storage/large_object/meson.build
new file mode 100644
index 00000000000..8a181ab9b34
--- /dev/null
+++ b/src/backend/storage/large_object/meson.build
@@ -0,0 +1,3 @@
+backend_sources += files(
+  'inv_api.c',
+)
diff --git a/src/backend/storage/lmgr/meson.build b/src/backend/storage/lmgr/meson.build
new file mode 100644
index 00000000000..938e7f89894
--- /dev/null
+++ b/src/backend/storage/lmgr/meson.build
@@ -0,0 +1,18 @@
+backend_sources += files(
+  'condition_variable.c',
+  'deadlock.c',
+  'lmgr.c',
+  'lock.c',
+  'lwlock.c',
+  'predicate.c',
+  'proc.c',
+  's_lock.c',
+  'spin.c',
+)
+
+lwlocknames_backend = custom_target('lwlocknames',
+  input : files('lwlocknames.txt'),
+  output : ['lwlocknames.c', 'lwlocknames.h'],
+  command : [perl, files('generate-lwlocknames.pl'), '-o', '@OUTDIR@', '@INPUT@']
+)
+generated_backend_sources += lwlocknames_backend[0]
diff --git a/src/backend/storage/meson.build b/src/backend/storage/meson.build
new file mode 100644
index 00000000000..daad628d74c
--- /dev/null
+++ b/src/backend/storage/meson.build
@@ -0,0 +1,9 @@
+subdir('buffer')
+subdir('file')
+subdir('freespace')
+subdir('ipc')
+subdir('large_object')
+subdir('lmgr')
+subdir('page')
+subdir('smgr')
+subdir('sync')
diff --git a/src/backend/storage/page/meson.build b/src/backend/storage/page/meson.build
new file mode 100644
index 00000000000..2ecd16c952c
--- /dev/null
+++ b/src/backend/storage/page/meson.build
@@ -0,0 +1,5 @@
+backend_sources += files(
+  'bufpage.c',
+  'checksum.c',
+  'itemptr.c',
+)
diff --git a/src/backend/storage/smgr/meson.build b/src/backend/storage/smgr/meson.build
new file mode 100644
index 00000000000..fdeb1223b32
--- /dev/null
+++ b/src/backend/storage/smgr/meson.build
@@ -0,0 +1,4 @@
+backend_sources += files(
+  'md.c',
+  'smgr.c',
+)
diff --git a/src/backend/storage/sync/meson.build b/src/backend/storage/sync/meson.build
new file mode 100644
index 00000000000..05148b91a8e
--- /dev/null
+++ b/src/backend/storage/sync/meson.build
@@ -0,0 +1,4 @@
+backend_sources += files(
+  'sync.c',
+
+)
diff --git a/src/backend/tcop/meson.build b/src/backend/tcop/meson.build
new file mode 100644
index 00000000000..fb54aae8122
--- /dev/null
+++ b/src/backend/tcop/meson.build
@@ -0,0 +1,8 @@
+backend_sources += files(
+  'cmdtag.c',
+  'dest.c',
+  'fastpath.c',
+  'postgres.c',
+  'pquery.c',
+  'utility.c',
+)
diff --git a/src/backend/tsearch/meson.build b/src/backend/tsearch/meson.build
new file mode 100644
index 00000000000..460036b6d4c
--- /dev/null
+++ b/src/backend/tsearch/meson.build
@@ -0,0 +1,21 @@
+backend_sources += files(
+  'dict.c',
+  'dict_ispell.c',
+  'dict_simple.c',
+  'dict_synonym.c',
+  'dict_thesaurus.c',
+  'regis.c',
+  'spell.c',
+  'to_tsany.c',
+  'ts_locale.c',
+  'ts_parse.c',
+  'ts_selfuncs.c',
+  'ts_typanalyze.c',
+  'ts_utils.c',
+  'wparser.c',
+  'wparser_def.c',
+)
+
+install_subdir('dicts',
+  install_dir: get_option('datadir') / 'tsearch_data',
+  strip_directory: true)
diff --git a/src/backend/utils/activity/meson.build b/src/backend/utils/activity/meson.build
new file mode 100644
index 00000000000..cef26eb564b
--- /dev/null
+++ b/src/backend/utils/activity/meson.build
@@ -0,0 +1,5 @@
+backend_sources += files(
+  'backend_progress.c',
+  'backend_status.c',
+  'wait_event.c',
+)
diff --git a/src/backend/utils/adt/meson.build b/src/backend/utils/adt/meson.build
new file mode 100644
index 00000000000..e1cea1eb4e4
--- /dev/null
+++ b/src/backend/utils/adt/meson.build
@@ -0,0 +1,118 @@
+backend_sources += files(
+  'acl.c',
+  'amutils.c',
+  'array_expanded.c',
+  'array_selfuncs.c',
+  'array_typanalyze.c',
+  'array_userfuncs.c',
+  'arrayfuncs.c',
+  'arraysubs.c',
+  'arrayutils.c',
+  'ascii.c',
+  'bool.c',
+  'cash.c',
+  'char.c',
+  'cryptohashfuncs.c',
+  'date.c',
+  'datetime.c',
+  'datum.c',
+  'dbsize.c',
+  'domains.c',
+  'encode.c',
+  'enum.c',
+  'expandeddatum.c',
+  'expandedrecord.c',
+  'float.c',
+  'format_type.c',
+  'formatting.c',
+  'genfile.c',
+  'geo_ops.c',
+  'geo_selfuncs.c',
+  'geo_spgist.c',
+  'inet_cidr_ntop.c',
+  'inet_net_pton.c',
+  'int.c',
+  'int8.c',
+  'json.c',
+  'jsonb.c',
+  'jsonb_gin.c',
+  'jsonb_op.c',
+  'jsonb_util.c',
+  'jsonfuncs.c',
+  'jsonbsubs.c',
+  'jsonpath.c',
+  'jsonpath_exec.c',
+  'like.c',
+  'like_support.c',
+  'lockfuncs.c',
+  'mac.c',
+  'mac8.c',
+  'mcxtfuncs.c',
+  'misc.c',
+  'multirangetypes.c',
+  'multirangetypes_selfuncs.c',
+  'name.c',
+  'network.c',
+  'network_gist.c',
+  'network_selfuncs.c',
+  'network_spgist.c',
+  'numeric.c',
+  'numutils.c',
+  'oid.c',
+  'oracle_compat.c',
+  'orderedsetaggs.c',
+  'partitionfuncs.c',
+  'pg_locale.c',
+  'pg_lsn.c',
+  'pg_upgrade_support.c',
+  'pgstatfuncs.c',
+  'pseudotypes.c',
+  'quote.c',
+  'rangetypes.c',
+  'rangetypes_gist.c',
+  'rangetypes_selfuncs.c',
+  'rangetypes_spgist.c',
+  'rangetypes_typanalyze.c',
+  'regexp.c',
+  'regproc.c',
+  'ri_triggers.c',
+  'rowtypes.c',
+  'ruleutils.c',
+  'selfuncs.c',
+  'tid.c',
+  'timestamp.c',
+  'trigfuncs.c',
+  'tsginidx.c',
+  'tsgistidx.c',
+  'tsquery.c',
+  'tsquery_cleanup.c',
+  'tsquery_gist.c',
+  'tsquery_op.c',
+  'tsquery_rewrite.c',
+  'tsquery_util.c',
+  'tsrank.c',
+  'tsvector.c',
+  'tsvector_op.c',
+  'tsvector_parser.c',
+  'uuid.c',
+  'varbit.c',
+  'varchar.c',
+  'varlena.c',
+  'version.c',
+  'windowfuncs.c',
+  'xid.c',
+  'xid8funcs.c',
+  'xml.c',
+)
+
+
+jsonpath_scan = custom_target('jsonpath_scan',
+  input: ['jsonpath_scan.l'],
+  output: ['jsonpath_scan.c'],
+  command: [flex, '-b', '-CF', '-p', '-p', '-o', '@OUTPUT@', '@INPUT@'])
+
+# jsonpath_scan is compiled as part of jsonpath_gram
+generated_backend_sources += custom_target('jsonpath_parse',
+  input: ['jsonpath_gram.y', jsonpath_scan[0]],
+  output: ['jsonpath_gram.c'],
+  command: [bison, bisonflags, '-o', '@OUTPUT@', '@INPUT0@'])
diff --git a/src/backend/utils/cache/meson.build b/src/backend/utils/cache/meson.build
new file mode 100644
index 00000000000..92972db52ad
--- /dev/null
+++ b/src/backend/utils/cache/meson.build
@@ -0,0 +1,16 @@
+backend_sources += files(
+  'attoptcache.c',
+  'catcache.c',
+  'evtcache.c',
+  'inval.c',
+  'lsyscache.c',
+  'partcache.c',
+  'plancache.c',
+  'relcache.c',
+  'relfilenodemap.c',
+  'relmapper.c',
+  'spccache.c',
+  'syscache.c',
+  'ts_cache.c',
+  'typcache.c',
+)
diff --git a/src/backend/utils/error/meson.build b/src/backend/utils/error/meson.build
new file mode 100644
index 00000000000..ff0ae388263
--- /dev/null
+++ b/src/backend/utils/error/meson.build
@@ -0,0 +1,4 @@
+backend_sources += files(
+  'assert.c',
+  'elog.c',
+  )
diff --git a/src/backend/utils/fmgr/meson.build b/src/backend/utils/fmgr/meson.build
new file mode 100644
index 00000000000..e545b424fd2
--- /dev/null
+++ b/src/backend/utils/fmgr/meson.build
@@ -0,0 +1,8 @@
+backend_sources += files(
+  'dfmgr.c',
+  'fmgr.c',
+  'funcapi.c',
+)
+
+# fmgrtab.c
+generated_backend_sources += fmgrtab_target[2]
diff --git a/src/backend/utils/hash/meson.build b/src/backend/utils/hash/meson.build
new file mode 100644
index 00000000000..242e2f0ecdf
--- /dev/null
+++ b/src/backend/utils/hash/meson.build
@@ -0,0 +1,4 @@
+backend_sources += files(
+  'dynahash.c',
+  'pg_crc.c'
+)
diff --git a/src/backend/utils/init/meson.build b/src/backend/utils/init/meson.build
new file mode 100644
index 00000000000..ec9d72c3df1
--- /dev/null
+++ b/src/backend/utils/init/meson.build
@@ -0,0 +1,4 @@
+backend_sources += files(
+  'globals.c',
+  'miscinit.c',
+  'postinit.c')
diff --git a/src/backend/utils/mb/conversion_procs/meson.build b/src/backend/utils/mb/conversion_procs/meson.build
new file mode 100644
index 00000000000..b84a78b6318
--- /dev/null
+++ b/src/backend/utils/mb/conversion_procs/meson.build
@@ -0,0 +1,38 @@
+encodings = {
+  'cyrillic_and_mic': ['cyrillic_and_mic/cyrillic_and_mic.c'],
+  'euc2004_sjis2004': ['euc2004_sjis2004/euc2004_sjis2004.c'],
+  'euc_cn_and_mic': ['euc_cn_and_mic/euc_cn_and_mic.c'],
+  'euc_jp_and_sjis': ['euc_jp_and_sjis/euc_jp_and_sjis.c'],
+  'euc_kr_and_mic': ['euc_kr_and_mic/euc_kr_and_mic.c'],
+  'euc_tw_and_big5': [
+    'euc_tw_and_big5/euc_tw_and_big5.c',
+    'euc_tw_and_big5/big5.c',
+  ],
+  'latin2_and_win1250': ['latin2_and_win1250/latin2_and_win1250.c'],
+  'latin_and_mic': ['latin_and_mic/latin_and_mic.c'],
+  'utf8_and_big5': ['utf8_and_big5/utf8_and_big5.c'],
+  'utf8_and_cyrillic': ['utf8_and_cyrillic/utf8_and_cyrillic.c'],
+  'utf8_and_euc2004': ['utf8_and_euc2004/utf8_and_euc2004.c'],
+  'utf8_and_euc_cn': ['utf8_and_euc_cn/utf8_and_euc_cn.c'],
+  'utf8_and_euc_jp': ['utf8_and_euc_jp/utf8_and_euc_jp.c'],
+  'utf8_and_euc_kr': ['utf8_and_euc_kr/utf8_and_euc_kr.c'],
+  'utf8_and_euc_tw': ['utf8_and_euc_tw/utf8_and_euc_tw.c'],
+  'utf8_and_gb18030': ['utf8_and_gb18030/utf8_and_gb18030.c'],
+  'utf8_and_gbk': ['utf8_and_gbk/utf8_and_gbk.c'],
+  'utf8_and_iso8859': ['utf8_and_iso8859/utf8_and_iso8859.c'],
+  'utf8_and_iso8859_1': ['utf8_and_iso8859_1/utf8_and_iso8859_1.c'],
+  'utf8_and_johab': ['utf8_and_johab/utf8_and_johab.c'],
+  'utf8_and_sjis': ['utf8_and_sjis/utf8_and_sjis.c'],
+  'utf8_and_sjis2004': ['utf8_and_sjis2004/utf8_and_sjis2004.c'],
+  'utf8_and_uhc': ['utf8_and_uhc/utf8_and_uhc.c'],
+  'utf8_and_win': ['utf8_and_win/utf8_and_win.c'],
+}
+
+foreach encoding, sources : encodings
+  backend_targets += shared_module(encoding,
+    sources,
+    kwargs: pg_mod_args + {
+    }
+  )
+
+endforeach
diff --git a/src/backend/utils/mb/meson.build b/src/backend/utils/mb/meson.build
new file mode 100644
index 00000000000..39e45638db0
--- /dev/null
+++ b/src/backend/utils/mb/meson.build
@@ -0,0 +1,9 @@
+backend_sources += files(
+  'conv.c',
+  'mbutils.c',
+  'stringinfo_mb.c',
+  'wstrcmp.c',
+  'wstrncmp.c',
+)
+
+# Note we only enter conversion_procs once the backend build is defined
diff --git a/src/backend/utils/meson.build b/src/backend/utils/meson.build
new file mode 100644
index 00000000000..afb1c0346ba
--- /dev/null
+++ b/src/backend/utils/meson.build
@@ -0,0 +1,13 @@
+subdir('activity')
+subdir('adt')
+subdir('cache')
+subdir('error')
+subdir('fmgr')
+subdir('hash')
+subdir('init')
+subdir('mb')
+subdir('misc')
+subdir('mmgr')
+subdir('resowner')
+subdir('sort')
+subdir('time')
diff --git a/src/backend/utils/misc/meson.build b/src/backend/utils/misc/meson.build
new file mode 100644
index 00000000000..2c0090ad337
--- /dev/null
+++ b/src/backend/utils/misc/meson.build
@@ -0,0 +1,28 @@
+backend_sources += files(
+  'help_config.c',
+  'pg_config.c',
+  'pg_controldata.c',
+  'pg_rusage.c',
+  'ps_status.c',
+  'queryenvironment.c',
+  'queryjumble.c',
+  'rls.c',
+  'sampling.c',
+  'superuser.c',
+  'timeout.c',
+  'tzparser.c',
+  'guc.c',
+)
+
+# guc-file.c.h is compiled as part of guc.c
+guc_scan = custom_target('guc_scan',
+  input: ['guc-file.l'],
+  output: ['guc-file.c.h'],
+  command: [flex, '-o', '@OUTPUT@', '@INPUT@'])
+
+generated_backend_sources += guc_scan
+
+backend_build_deps += declare_dependency(sources: [guc_scan],
+  include_directories: include_directories('.'))
+
+install_data('postgresql.conf.sample', install_dir: 'share/')
diff --git a/src/backend/utils/mmgr/meson.build b/src/backend/utils/mmgr/meson.build
new file mode 100644
index 00000000000..641bb181ba1
--- /dev/null
+++ b/src/backend/utils/mmgr/meson.build
@@ -0,0 +1,10 @@
+backend_sources += files(
+  'aset.c',
+  'dsa.c',
+  'freepage.c',
+  'generation.c',
+  'mcxt.c',
+  'memdebug.c',
+  'portalmem.c',
+  'slab.c',
+)
diff --git a/src/backend/utils/resowner/meson.build b/src/backend/utils/resowner/meson.build
new file mode 100644
index 00000000000..d30891ca027
--- /dev/null
+++ b/src/backend/utils/resowner/meson.build
@@ -0,0 +1,3 @@
+backend_sources += files(
+  'resowner.c'
+)
diff --git a/src/backend/utils/sort/meson.build b/src/backend/utils/sort/meson.build
new file mode 100644
index 00000000000..b626bdc9d96
--- /dev/null
+++ b/src/backend/utils/sort/meson.build
@@ -0,0 +1,7 @@
+backend_sources += files(
+  'logtape.c',
+  'sharedtuplestore.c',
+  'sortsupport.c',
+  'tuplesort.c',
+  'tuplestore.c',
+)
diff --git a/src/backend/utils/time/meson.build b/src/backend/utils/time/meson.build
new file mode 100644
index 00000000000..6fff8792bb0
--- /dev/null
+++ b/src/backend/utils/time/meson.build
@@ -0,0 +1,4 @@
+backend_sources += files(
+  'combocid.c',
+  'snapmgr.c',
+)
diff --git a/src/bin/initdb/meson.build b/src/bin/initdb/meson.build
new file mode 100644
index 00000000000..52f679e3116
--- /dev/null
+++ b/src/bin/initdb/meson.build
@@ -0,0 +1,24 @@
+initdb_sources = files(
+  'findtimezone.c',
+  'initdb.c'
+)
+
+initdb_sources += timezone_localtime_source
+
+#fixme: reimplement libpq_pgport logic
+
+executable('initdb',
+  initdb_sources,
+  include_directories: [timezone_inc],
+  dependencies: [frontend_code, libpq],
+  kwargs: default_bin_args,
+)
+
+tap_tests += {
+  'name': 'initdb',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'tests': [
+    't/001_initdb.pl'
+  ]
+}
diff --git a/src/bin/meson.build b/src/bin/meson.build
new file mode 100644
index 00000000000..5fd5a9d2f98
--- /dev/null
+++ b/src/bin/meson.build
@@ -0,0 +1,20 @@
+subdir('initdb')
+subdir('pg_amcheck')
+subdir('pg_archivecleanup')
+subdir('pg_basebackup')
+subdir('pg_checksums')
+subdir('pg_config')
+subdir('pg_controldata')
+subdir('pg_ctl')
+subdir('pg_dump')
+subdir('pg_resetwal')
+subdir('pg_rewind')
+subdir('pg_test_fsync')
+subdir('pg_test_timing')
+subdir('pg_upgrade')
+subdir('pg_verifybackup')
+subdir('pg_waldump')
+subdir('pgbench')
+subdir('pgevent')
+subdir('psql')
+subdir('scripts')
diff --git a/src/bin/pg_amcheck/meson.build b/src/bin/pg_amcheck/meson.build
new file mode 100644
index 00000000000..69eaef8f141
--- /dev/null
+++ b/src/bin/pg_amcheck/meson.build
@@ -0,0 +1,22 @@
+pg_amcheck_sources = files(
+  'pg_amcheck.c'
+)
+
+pg_amcheck = executable('pg_amcheck',
+  pg_amcheck_sources,
+  dependencies: [frontend_code, libpq],
+  kwargs: default_bin_args,
+)
+
+tap_tests += {
+  'name': 'pg_amcheck',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'tests': [
+    't/001_basic.pl',
+    't/002_nonesuch.pl',
+    't/003_check.pl',
+    't/004_verify_heapam.pl',
+    't/005_opclass_damage.pl',
+  ]
+}
diff --git a/src/bin/pg_archivecleanup/meson.build b/src/bin/pg_archivecleanup/meson.build
new file mode 100644
index 00000000000..27742fafab7
--- /dev/null
+++ b/src/bin/pg_archivecleanup/meson.build
@@ -0,0 +1,14 @@
+pg_archivecleanup = executable('pg_archivecleanup',
+  ['pg_archivecleanup.c'],
+  dependencies: [frontend_code],
+  kwargs: default_bin_args,
+)
+
+tap_tests += {
+  'name': 'pg_archivecleanup',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'tests': [
+    't/010_pg_archivecleanup.pl'
+  ]
+}
diff --git a/src/bin/pg_basebackup/meson.build b/src/bin/pg_basebackup/meson.build
new file mode 100644
index 00000000000..a629b8b02f5
--- /dev/null
+++ b/src/bin/pg_basebackup/meson.build
@@ -0,0 +1,44 @@
+common_sources = files(
+  'receivelog.c',
+  'streamutil.c',
+  'walmethods.c',
+)
+
+pg_basebackup_common = static_library('pg_basebackup_common',
+  common_sources,
+  dependencies: [frontend_code, libpq, zlib],
+  kwargs: internal_lib_args,
+)
+
+executable('pg_basebackup',
+  'pg_basebackup.c',
+  link_with: [pg_basebackup_common],
+  dependencies: [frontend_code, libpq, zlib],
+  kwargs: default_bin_args,
+)
+
+executable('pg_receivewal',
+  'pg_receivewal.c',
+  link_with: [pg_basebackup_common],
+  dependencies: [frontend_code, libpq],
+  kwargs: default_bin_args,
+)
+
+executable('pg_recvlogical',
+  'pg_recvlogical.c',
+  link_with: [pg_basebackup_common],
+  dependencies: [frontend_code, libpq],
+  kwargs: default_bin_args,
+)
+
+tap_tests += {
+  'name' : 'pg_basebackup',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'env': {'GZIP_PROGRAM': gzip.path(), 'TAR': tar.path()},
+  'tests': [
+    't/010_pg_basebackup.pl',
+    't/020_pg_receivewal.pl',
+    't/030_pg_recvlogical.pl',
+  ]
+}
diff --git a/src/bin/pg_checksums/meson.build b/src/bin/pg_checksums/meson.build
new file mode 100644
index 00000000000..bbf9582b904
--- /dev/null
+++ b/src/bin/pg_checksums/meson.build
@@ -0,0 +1,16 @@
+executable('pg_checksums',
+  ['pg_checksums.c'],
+  include_directories: [timezone_inc],
+  dependencies: [frontend_code],
+  kwargs: default_bin_args,
+)
+
+tap_tests += {
+  'name': 'pg_checksums',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'tests': [
+    't/001_basic.pl',
+    't/002_actions.pl'
+  ]
+}
diff --git a/src/bin/pg_config/meson.build b/src/bin/pg_config/meson.build
new file mode 100644
index 00000000000..df0eb13f636
--- /dev/null
+++ b/src/bin/pg_config/meson.build
@@ -0,0 +1,14 @@
+executable('pg_config',
+  ['pg_config.c'],
+  dependencies: [frontend_code],
+  kwargs: default_bin_args,
+)
+
+tap_tests += {
+  'name': 'pg_config',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'tests': [
+    't/001_pg_config.pl',
+  ]
+}
diff --git a/src/bin/pg_controldata/meson.build b/src/bin/pg_controldata/meson.build
new file mode 100644
index 00000000000..fa6057afa54
--- /dev/null
+++ b/src/bin/pg_controldata/meson.build
@@ -0,0 +1,14 @@
+executable('pg_controldata',
+  ['pg_controldata.c'],
+  dependencies: [frontend_code],
+  kwargs: default_bin_args,
+)
+
+tap_tests += {
+  'name': 'pg_controldata',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'tests': [
+    't/001_pg_controldata.pl'
+  ]
+}
diff --git a/src/bin/pg_ctl/meson.build b/src/bin/pg_ctl/meson.build
new file mode 100644
index 00000000000..ac0d4f18192
--- /dev/null
+++ b/src/bin/pg_ctl/meson.build
@@ -0,0 +1,17 @@
+executable('pg_ctl',
+  ['pg_ctl.c'],
+  dependencies: [frontend_code, libpq],
+  kwargs: default_bin_args,
+)
+
+tap_tests += {
+  'name': 'pg_ctl',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'tests': [
+    't/001_start_stop.pl',
+    't/002_status.pl',
+    't/003_promote.pl',
+    't/004_logrotate.pl'
+  ]
+}
diff --git a/src/bin/pg_dump/meson.build b/src/bin/pg_dump/meson.build
new file mode 100644
index 00000000000..ce5ef11eaeb
--- /dev/null
+++ b/src/bin/pg_dump/meson.build
@@ -0,0 +1,69 @@
+pg_dump_common_sources = files(
+  'compress_io.c',
+  'dumputils.c',
+  'parallel.c',
+  'pg_backup_archiver.c',
+  'pg_backup_custom.c',
+  'pg_backup_db.c',
+  'pg_backup_directory.c',
+  'pg_backup_null.c',
+  'pg_backup_tar.c',
+  'pg_backup_utils.c',
+)
+
+pg_dump_common = static_library('pg_dump_common',
+  pg_dump_common_sources,
+  c_pch: '../../include/pch/c_pch.h',
+  dependencies: [frontend_code, libpq, zlib],
+  kwargs: internal_lib_args,
+)
+
+pg_dump_sources = files(
+  'pg_dump.c',
+  'common.c',
+  'pg_dump_sort.c',
+)
+
+executable('pg_dump',
+  pg_dump_sources,
+  link_with: [pg_dump_common],
+  dependencies: [frontend_code, libpq, zlib],
+  kwargs: default_bin_args,
+)
+
+
+pg_dumpall_sources = files(
+  'pg_dumpall.c',
+)
+
+executable('pg_dumpall',
+  pg_dumpall_sources,
+  link_with: [pg_dump_common],
+  dependencies: [frontend_code, libpq, zlib],
+  kwargs: default_bin_args,
+)
+
+
+pg_restore_sources = files(
+  'pg_restore.c',
+)
+
+executable('pg_restore',
+  pg_restore_sources,
+  link_with: [pg_dump_common],
+  dependencies: [frontend_code, libpq, zlib],
+  kwargs: default_bin_args,
+)
+
+
+tap_tests += {
+  'name': 'pg_dump',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'tests': [
+    't/001_basic.pl',
+    't/002_pg_dump.pl',
+    't/003_pg_dump_with_server.pl',
+    't/010_dump_connstr.pl',
+  ]
+}
diff --git a/src/bin/pg_resetwal/meson.build b/src/bin/pg_resetwal/meson.build
new file mode 100644
index 00000000000..7450c0f6432
--- /dev/null
+++ b/src/bin/pg_resetwal/meson.build
@@ -0,0 +1,15 @@
+executable('pg_resetwal',
+  files('pg_resetwal.c'),
+  dependencies: [frontend_code],
+  kwargs: default_bin_args,
+)
+
+tap_tests += {
+  'name': 'pg_resetwal',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'tests': [
+    't/001_basic.pl',
+    't/002_corrupted.pl'
+  ]
+}
diff --git a/src/bin/pg_rewind/meson.build b/src/bin/pg_rewind/meson.build
new file mode 100644
index 00000000000..c7c59e9e523
--- /dev/null
+++ b/src/bin/pg_rewind/meson.build
@@ -0,0 +1,34 @@
+pg_rewind_sources = files(
+  'datapagemap.c',
+  'file_ops.c',
+  'filemap.c',
+  'libpq_source.c',
+  'local_source.c',
+  'parsexlog.c',
+  'pg_rewind.c',
+  'timeline.c',
+  '../../backend/access/transam/xlogreader.c',
+)
+
+pg_rewind = executable('pg_rewind',
+  pg_rewind_sources,
+  dependencies: [frontend_code, libpq, lz4],
+  kwargs: default_bin_args,
+)
+
+
+tap_tests += {
+  'name': 'pg_rewind',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'tests': [
+    't/001_basic.pl',
+    't/002_databases.pl',
+    't/003_extrafiles.pl',
+    't/004_pg_xlog_symlink.pl',
+    't/005_same_timeline.pl',
+    't/006_options.pl',
+    't/007_standby_source.pl',
+    't/008_min_recovery_point.pl',
+  ]
+}
diff --git a/src/bin/pg_test_fsync/meson.build b/src/bin/pg_test_fsync/meson.build
new file mode 100644
index 00000000000..527be88d125
--- /dev/null
+++ b/src/bin/pg_test_fsync/meson.build
@@ -0,0 +1,14 @@
+executable('pg_test_fsync',
+  ['pg_test_fsync.c'],
+  dependencies: [frontend_code],
+  kwargs: default_bin_args,
+)
+
+tap_tests += {
+  'name' : 'pg_test_fsync',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'tests' :[
+    't/001_basic.pl',
+  ]
+}
diff --git a/src/bin/pg_test_timing/meson.build b/src/bin/pg_test_timing/meson.build
new file mode 100644
index 00000000000..c74577df493
--- /dev/null
+++ b/src/bin/pg_test_timing/meson.build
@@ -0,0 +1,14 @@
+pg_test_timing = executable('pg_test_timing',
+  ['pg_test_timing.c'],
+  dependencies: [frontend_code],
+  kwargs: default_bin_args,
+)
+
+tap_tests += {
+  'name': 'pg_test_timing',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'tests': [
+    't/001_basic.pl'
+  ]
+}
diff --git a/src/bin/pg_upgrade/meson.build b/src/bin/pg_upgrade/meson.build
new file mode 100644
index 00000000000..88d0e03446b
--- /dev/null
+++ b/src/bin/pg_upgrade/meson.build
@@ -0,0 +1,26 @@
+pg_upgrade_sources = files(
+  'check.c',
+  'controldata.c',
+  'dump.c',
+  'exec.c',
+  'file.c',
+  'function.c',
+  'info.c',
+  'option.c',
+  'parallel.c',
+  'pg_upgrade.c',
+  'relfilenode.c',
+  'server.c',
+  'tablespace.c',
+  'util.c',
+  'version.c',
+)
+
+pg_upgrade = executable('pg_upgrade',
+  pg_upgrade_sources,
+  c_pch: '../../include/pch/c_pch.h',
+  dependencies: [frontend_code, libpq],
+  kwargs: default_bin_args,
+)
+
+# FIXME: add test
diff --git a/src/bin/pg_verifybackup/meson.build b/src/bin/pg_verifybackup/meson.build
new file mode 100644
index 00000000000..c7039ddcc49
--- /dev/null
+++ b/src/bin/pg_verifybackup/meson.build
@@ -0,0 +1,25 @@
+pg_verifybackup_sources = files(
+  'parse_manifest.c',
+  'pg_verifybackup.c'
+)
+
+pg_verifybackup = executable('pg_verifybackup',
+  pg_verifybackup_sources,
+  dependencies: [frontend_code, libpq],
+  kwargs: default_bin_args,
+)
+
+tap_tests += {
+  'name': 'pg_verifybackup',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'tests': [
+    't/001_basic.pl',
+    't/002_algorithm.pl',
+    't/003_corruption.pl',
+    't/004_options.pl',
+    't/005_bad_manifest.pl',
+    't/006_encoding.pl',
+    't/007_wal.pl',
+  ]
+}
diff --git a/src/bin/pg_waldump/meson.build b/src/bin/pg_waldump/meson.build
new file mode 100644
index 00000000000..f89139f89f5
--- /dev/null
+++ b/src/bin/pg_waldump/meson.build
@@ -0,0 +1,23 @@
+pg_waldump_sources = files(
+  'compat.c',
+  'pg_waldump.c',
+  'rmgrdesc.c',
+)
+
+pg_waldump_sources += rmgr_desc_sources
+pg_waldump_sources += xlogreader_sources
+
+pg_waldump = executable('pg_waldump',
+  pg_waldump_sources,
+  dependencies: [frontend_code, lz4],
+  kwargs: default_bin_args,
+)
+
+tap_tests += {
+  'name': 'pg_waldump',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'tests': [
+    't/001_basic.pl',
+  ]
+}
diff --git a/src/bin/pgbench/meson.build b/src/bin/pgbench/meson.build
new file mode 100644
index 00000000000..bc135abebfc
--- /dev/null
+++ b/src/bin/pgbench/meson.build
@@ -0,0 +1,38 @@
+pgbench_sources = files(
+  'pgbench.c',
+)
+
+# exprscan is compiled as part ofexprparse. The ordering is enforced by making
+# the generation of grammar depend on the scanner generation. That's
+# unnecessarily strict, but overall harmless.
+
+exprscan = custom_target('exprscan',
+  input : files('exprscan.l'),
+  output : ['exprscan.c'],
+  command : [flex, '-o', '@OUTPUT0@', '@INPUT@']
+)
+
+exprparse = custom_target('exprparse',
+  input: 'exprparse.y',
+  output: 'exprparse.c',
+  depends: exprscan,
+  command: [bison, bisonflags, '-o', '@OUTPUT@', '@INPUT0@'])
+pgbench_sources += exprparse
+
+executable('pgbench',
+  pgbench_sources,
+  dependencies: [frontend_code, libpq, thread_dep],
+  include_directories: include_directories('.'),
+  kwargs: default_bin_args,
+)
+
+
+tap_tests += {
+  'name' : 'pgbench',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'tests' :[
+    't/001_pgbench_with_server.pl',
+    't/002_pgbench_no_server.pl'
+  ]
+}
diff --git a/src/bin/pgevent/meson.build b/src/bin/pgevent/meson.build
new file mode 100644
index 00000000000..b35287d074b
--- /dev/null
+++ b/src/bin/pgevent/meson.build
@@ -0,0 +1,32 @@
+if host_machine.system() != 'windows'
+  subdir_done()
+endif
+
+pgevent_sources = files(
+    'pgevent.c',
+)
+
+pgevent_cdata = rc_lib_cdata
+pgevent_cdata.set_quoted('FILEDESC', 'Eventlog message formatter')
+pgevent_cdata.set_quoted('INTERNAL_NAME', 'pgevent')
+pgevent_cdata.set_quoted('ORIGINAL_NAME', 'pgevent.dll')
+
+configure_file(
+  output: 'win32ver.rc',
+  input: win32ver_rc_in,
+  configuration: pgevent_cdata
+)
+
+pgevent_sources += windows.compile_resources(
+  'pgmsgevent.rc',
+  include_directories: [include_directories('.'), postgres_inc],
+)
+
+shared_library('pgevent',
+  pgevent_sources,
+  dependencies: [frontend_code],
+  vs_module_defs: 'pgevent.def',
+  kwargs: default_lib_args + {
+    'name_prefix': '',
+  },
+)
diff --git a/src/bin/psql/meson.build b/src/bin/psql/meson.build
new file mode 100644
index 00000000000..75905a52c13
--- /dev/null
+++ b/src/bin/psql/meson.build
@@ -0,0 +1,65 @@
+psql_sources = files(
+  'command.c',
+  'common.c',
+  'copy.c',
+  'crosstabview.c',
+  'describe.c',
+  'help.c',
+  'input.c',
+  'large_obj.c',
+  'mainloop.c',
+  'prompt.c',
+  'startup.c',
+  'stringutils.c',
+  'tab-complete.c',
+  'variables.c',
+)
+
+psql_sources += custom_target('psqlscanslash',
+  input: ['psqlscanslash.l'],
+  output: ['psqlscanslash.c'],
+  command: [flex, '-b', '-Cfe', '-p', '-p', '-o', '@OUTPUT@', '@INPUT@'])
+
+psql_sources += custom_target('psql_help',
+  input: ['create_help.pl'],
+  output: ['sql_help.c', 'sql_help.h'],
+  depfile: 'sql_help.dep',
+  command: [perl, '@INPUT0@', '@SOURCE_ROOT@/doc/src/sgml/ref', '@OUTDIR@', 'sql_help'])
+
+if host_machine.system() == 'windows'
+  psql_cdata = rc_bin_cdata
+  psql_cdata.set_quoted('FILEDESC', 'psql - the PostgreSQL interactive terminal')
+  psql_cdata.set_quoted('INTERNAL_NAME', 'psql')
+  psql_cdata.set_quoted('ORIGINAL_NAME', 'psql.exe')
+
+  win32_ver_rc = configure_file(
+    output: 'win32ver.rc',
+    input: win32ver_rc_in,
+    configuration: psql_cdata
+  )
+
+  psql_sources += windows.compile_resources(
+    win32_ver_rc,
+    include_directories: postgres_inc,
+  )
+endif
+
+executable('psql',
+  psql_sources,
+  c_pch: '../../include/pch/c_pch.h',
+  include_directories: include_directories('.'),
+  dependencies : [frontend_code, libpq, readline],
+  kwargs: default_bin_args,
+)
+
+tap_tests += {
+  'name': 'psql',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'env': {'with_readline': readline.found() ? 'yes' : 'no'},
+  'tests': [
+    't/001_basic.pl',
+    't/010_tab_completion.pl',
+    't/020_cancel.pl',
+  ],
+}
diff --git a/src/bin/scripts/meson.build b/src/bin/scripts/meson.build
new file mode 100644
index 00000000000..547a53500a4
--- /dev/null
+++ b/src/bin/scripts/meson.build
@@ -0,0 +1,46 @@
+scripts_common = static_library('scripts_common',
+  files('common.c'),
+  dependencies: [frontend_code, libpq],
+  kwargs: internal_lib_args,
+)
+
+binaries = [
+  'createdb',
+  'dropdb',
+  'createuser',
+  'dropuser',
+  'clusterdb',
+  'vacuumdb',
+  'reindexdb',
+  'pg_isready',
+]
+
+foreach binary : binaries
+  executable(binary,
+    files(binary + '.c'),
+    link_with: [scripts_common],
+    dependencies: [frontend_code, libpq],
+    kwargs: default_bin_args,
+  )
+endforeach
+
+tap_tests += {
+  'name': 'scripts',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'tests': [
+    't/010_clusterdb.pl',
+    't/011_clusterdb_all.pl',
+    't/020_createdb.pl',
+    't/040_createuser.pl',
+    't/050_dropdb.pl',
+    't/070_dropuser.pl',
+    't/080_pg_isready.pl',
+    't/090_reindexdb.pl',
+    't/091_reindexdb_all.pl',
+    't/100_vacuumdb.pl',
+    't/101_vacuumdb_all.pl',
+    't/102_vacuumdb_stages.pl',
+    't/200_connstr.pl',
+  ]
+}
diff --git a/src/common/meson.build b/src/common/meson.build
new file mode 100644
index 00000000000..bb48a3c50a0
--- /dev/null
+++ b/src/common/meson.build
@@ -0,0 +1,155 @@
+common_sources = files(
+  'archive.c',
+  'base64.c',
+  'checksum_helper.c',
+  'config_info.c',
+  'controldata_utils.c',
+  'encnames.c',
+  'exec.c',
+  'file_perm.c',
+  'file_utils.c',
+  'hashfn.c',
+  'ip.c',
+  'jsonapi.c',
+  'keywords.c',
+  'kwlookup.c',
+  'link-canary.c',
+  'md5_common.c',
+  'pg_get_line.c',
+  'pg_lzcompress.c',
+  'pgfnames.c',
+  'psprintf.c',
+  'relpath.c',
+  'rmtree.c',
+  'saslprep.c',
+  'scram-common.c',
+  'string.c',
+  'stringinfo.c',
+  'unicode_norm.c',
+  'username.c',
+  'wait_error.c',
+  'wchar.c',
+)
+
+# FIXME: implement openssl
+if ssl.found()
+  common_sources += files(
+    'cryptohash_openssl.c',
+    'hmac_openssl.c',
+    'protocol_openssl.c',
+  )
+else
+  common_sources += files(
+    'cryptohash.c',
+    'hmac.c',
+    'md5.c',
+    'sha1.c',
+    'sha2.c',
+  )
+endif
+
+common_sources += custom_target('kwlist',
+  input: files('../include/parser/kwlist.h'),
+  output: 'kwlist_d.h',
+  command: [perl, '-I', '@SOURCE_ROOT@/src/tools', files('../tools/gen_keywordlist.pl'),
+      '--extern', '--output', '@OUTDIR@', '@INPUT@'])
+
+
+# The code imported from Ryu gets a pass on declaration-after-statement,
+# in order to keep it more closely aligned with its upstream.
+ryu_sources = files(
+  'd2s.c',
+  'f2s.c',
+)
+ryu_cflags = []
+
+if using_declaration_after_statement_warning
+  ryu_cflags += ['-Wno-declaration-after-statement']
+endif
+
+common_cflags = {'ryu': ryu_cflags}
+common_sources_cflags = {'ryu': ryu_sources}
+
+
+# A few files are currently only built for frontend, not server
+# (Mkvcbuild.pm has a copy of this list, too).  logging.c is excluded
+# from OBJS_FRONTEND_SHLIB (shared library) as a matter of policy,
+# because it is not appropriate for general purpose libraries such
+# as libpq to report errors directly.
+
+common_sources_frontend_shlib = common_sources
+common_sources_frontend_shlib += files(
+  'fe_memutils.c',
+  'restricted_token.c',
+  'sprompt.c',
+)
+
+common_sources_frontend_static = common_sources_frontend_shlib
+common_sources_frontend_static += files(
+  'logging.c',
+)
+
+# Build pgport once for backend, once for use in frontend binaries, and once
+# for use in shared libraries
+#
+# XXX: in most environments we could probably link_whole pgcommon_shlib
+# against pgcommon_static, instead of compiling twice.
+#
+# For the server build of pgcommon, depend on lwlocknames_h, because at least
+# cryptohash_openssl.c, hmac_openssl.c depend on it. That's arguably a
+# layering violation, but ...
+pgcommon = {}
+pgcommon_variants = {
+  'srv' : internal_lib_args + {
+    'sources': common_sources + [lwlocknames_h],
+    'dependencies': [backend_common_code],
+   },
+  'static' : default_lib_args + {
+    'sources': common_sources_frontend_static,
+    'dependencies': [frontend_common_code],
+   },
+  'shlib' : default_lib_args + {
+    'pic': true,
+    'sources': common_sources_frontend_shlib,
+    'dependencies': [frontend_common_code],
+   },
+}
+
+foreach name, opts : pgcommon_variants
+
+  # Build internal static libraries for sets of files that need to be built
+  # with different cflags
+  cflag_libs = []
+  foreach cflagname, sources: common_sources_cflags
+    if sources.length() == 0
+      continue
+    endif
+    c_args = opts.get('c_args', []) + common_cflags[cflagname]
+    cflag_libs += static_library('pgcommon_@0@_@1@'.format(cflagname, name),
+      c_pch: '../include/pch/c_pch.h',
+      include_directories: include_directories('.'),
+      kwargs: opts + {
+        'sources': sources,
+        'c_args': c_args,
+        'build_by_default': false,
+        'install': false,
+      },
+    )
+  endforeach
+
+  lib = static_library('pgcommon_@0@'.format(name),
+      link_with: cflag_libs,
+      c_pch: '../include/pch/c_pch.h',
+      include_directories: include_directories('.'),
+      kwargs: opts + {
+        'dependencies': opts['dependencies'] + [ssl],
+      }
+    )
+  pgcommon += {name: lib}
+endforeach
+
+common_srv = pgcommon['srv']
+common_shlib = pgcommon['shlib']
+common_static = pgcommon['static']
+
+subdir('unicode')
diff --git a/src/common/unicode/meson.build b/src/common/unicode/meson.build
new file mode 100644
index 00000000000..e8145e138c0
--- /dev/null
+++ b/src/common/unicode/meson.build
@@ -0,0 +1,99 @@
+# These files are part of the Unicode Character Database. Download
+# them on demand.
+
+UNICODE_VERSION = '14.0.0'
+
+unicode_data = {}
+unicode_baseurl = 'https://www.unicode.org/Public/@0@/ucd/@1@'
+
+if not wget.found()
+  subdir_done()
+endif
+
+foreach f : ['UnicodeData.txt', 'EastAsianWidth.txt', 'DerivedNormalizationProps.txt', 'CompositionExclusions.txt', 'NormalizationTest.txt']
+  url = unicode_baseurl.format(UNICODE_VERSION, f)
+  target = custom_target(f,
+    output: f,
+    command: [wget, wget_flags, url],
+    build_by_default: false,
+  )
+  unicode_data += {f: target}
+endforeach
+
+
+update_unicode_targets = []
+
+update_unicode_targets += \
+  custom_target('unicode_norm_table.h',
+    input: [unicode_data['UnicodeData.txt'], unicode_data['CompositionExclusions.txt']],
+    output: ['unicode_norm_table.h', 'unicode_norm_hashfunc.h'],
+    command: [perl, files('generate-unicode_norm_table.pl'), '@OUTDIR@', '@INPUT@'],
+    build_by_default: false,
+  )
+
+update_unicode_targets += \
+  custom_target('unicode_combining_table.h',
+    input: [unicode_data['UnicodeData.txt']],
+    output: ['unicode_combining_table.h'],
+    command: [perl, files('generate-unicode_combining_table.pl'), '@INPUT@'],
+    build_by_default: false,
+    capture: true,
+  )
+
+update_unicode_targets += \
+  custom_target('unicode_east_asian_fw_table.h',
+    input: [unicode_data['EastAsianWidth.txt']],
+    output: ['unicode_east_asian_fw_table.h'],
+    command: [perl, files('generate-unicode_east_asian_fw_table.pl'), '@INPUT@'],
+    build_by_default: false,
+    capture: true,
+  )
+
+update_unicode_targets += \
+  custom_target('unicode_normprops_table.h',
+    input: [unicode_data['DerivedNormalizationProps.txt']],
+    output: ['unicode_normprops_table.h'],
+    command: [perl, files('generate-unicode_normprops_table.pl'), '@INPUT@'],
+    build_by_default: false,
+    capture: true,
+  )
+
+norm_test_table = custom_target('norm_test_table.h',
+    input: [unicode_data['NormalizationTest.txt']],
+    output: ['norm_test_table.h'],
+    command: [perl, files('generate-norm_test_table.pl'), '@INPUT@', '@OUTPUT@'],
+    build_by_default: false,
+  )
+
+inc = include_directories('.')
+
+norm_test = executable('norm_test',
+  ['norm_test.c', norm_test_table],
+  dependencies: [frontend_port_code],
+  include_directories: inc,
+  link_with: [pgport_static, common_static],
+  build_by_default: false,
+  kwargs: default_bin_args + {
+    'install': false,
+  }
+)
+
+if not meson.is_cross_build()
+  norm_test_valid = custom_target('norm_test.valid',
+    output: 'norm_test.valid',
+    depends: update_unicode_targets,
+    command: [norm_test],
+    build_by_default: false,
+    capture: true,
+  )
+
+  run_target('update-unicode',
+    depends: norm_test_valid,
+    command: ['cp', update_unicode_targets, '@SOURCE_ROOT@/src/include/common/']
+  )
+else
+  run_target('update-unicode',
+    depends: update_unicode_targets,
+    command: ['cp', update_unicode_targets, '@SOURCE_ROOT@/src/include/common/']
+  )
+endif
diff --git a/src/fe_utils/meson.build b/src/fe_utils/meson.build
new file mode 100644
index 00000000000..e3f0b34cf13
--- /dev/null
+++ b/src/fe_utils/meson.build
@@ -0,0 +1,27 @@
+fe_utils_sources = files(
+  'archive.c',
+  'cancel.c',
+  'conditional.c',
+  'connect_utils.c',
+  'mbprint.c',
+  'option_utils.c',
+  'parallel_slot.c',
+  'print.c',
+  'query_utils.c',
+  'recovery_gen.c',
+  'simple_list.c',
+  'string_utils.c',
+)
+
+fe_utils_sources += custom_target('psqlscan',
+  input: ['psqlscan.l'],
+  output: ['psqlscan.c'],
+  command: [flex, '-b', '-Cfe', '-p', '-p', '-o', '@OUTPUT@', '@INPUT@'])
+
+fe_utils = static_library('fe_utils',
+  fe_utils_sources + generated_headers,
+  c_pch: '../include/pch/c_pch.h',
+  include_directories :  [postgres_inc, libpq_inc],
+  c_args: ['-DFRONTEND'],
+  kwargs: default_lib_args,
+)
diff --git a/src/include/catalog/meson.build b/src/include/catalog/meson.build
new file mode 100644
index 00000000000..f5bc294c814
--- /dev/null
+++ b/src/include/catalog/meson.build
@@ -0,0 +1,129 @@
+catalog_headers = [
+  'pg_proc.h',
+  'pg_type.h',
+  'pg_attribute.h',
+  'pg_class.h',
+  'pg_attrdef.h',
+  'pg_constraint.h',
+  'pg_inherits.h',
+  'pg_index.h',
+  'pg_operator.h',
+  'pg_opfamily.h',
+  'pg_opclass.h',
+  'pg_am.h',
+  'pg_amop.h',
+  'pg_amproc.h',
+  'pg_language.h',
+  'pg_largeobject_metadata.h',
+  'pg_largeobject.h',
+  'pg_aggregate.h',
+  'pg_statistic.h',
+  'pg_statistic_ext.h',
+  'pg_statistic_ext_data.h',
+  'pg_rewrite.h',
+  'pg_trigger.h',
+  'pg_event_trigger.h',
+  'pg_description.h',
+  'pg_cast.h',
+  'pg_enum.h',
+  'pg_namespace.h',
+  'pg_conversion.h',
+  'pg_depend.h',
+  'pg_database.h',
+  'pg_db_role_setting.h',
+  'pg_tablespace.h',
+  'pg_authid.h',
+  'pg_auth_members.h',
+  'pg_shdepend.h',
+  'pg_shdescription.h',
+  'pg_ts_config.h',
+  'pg_ts_config_map.h',
+  'pg_ts_dict.h',
+  'pg_ts_parser.h',
+  'pg_ts_template.h',
+  'pg_extension.h',
+  'pg_foreign_data_wrapper.h',
+  'pg_foreign_server.h',
+  'pg_user_mapping.h',
+  'pg_foreign_table.h',
+  'pg_policy.h',
+  'pg_replication_origin.h',
+  'pg_default_acl.h',
+  'pg_init_privs.h',
+  'pg_seclabel.h',
+  'pg_shseclabel.h',
+  'pg_collation.h',
+  'pg_partitioned_table.h',
+  'pg_range.h',
+  'pg_transform.h',
+  'pg_sequence.h',
+  'pg_publication.h',
+  'pg_publication_namespace.h',
+  'pg_publication_rel.h',
+  'pg_subscription.h',
+  'pg_subscription_rel.h',
+]
+
+bki_data = files(
+  'pg_aggregate.dat',
+  'pg_am.dat',
+  'pg_amop.dat',
+  'pg_amproc.dat',
+  'pg_authid.dat',
+  'pg_cast.dat',
+  'pg_class.dat',
+  'pg_collation.dat',
+  'pg_conversion.dat',
+  'pg_database.dat',
+  'pg_language.dat',
+  'pg_namespace.dat',
+  'pg_opclass.dat',
+  'pg_operator.dat',
+  'pg_opfamily.dat',
+  'pg_proc.dat',
+  'pg_range.dat',
+  'pg_tablespace.dat',
+  'pg_ts_config.dat',
+  'pg_ts_config_map.dat',
+  'pg_ts_dict.dat',
+  'pg_ts_parser.dat',
+  'pg_ts_template.dat',
+  'pg_type.dat',
+  )
+
+
+input = []
+output_files = ['postgres.bki', 'schemapg.h', 'system_fk_info.h', 'system_constraints.sql']
+output_install = [get_option('datadir'), get_option('includedir'), get_option('includedir'), get_option('datadir')]
+
+foreach h : catalog_headers
+  fname = h.split('.h')[0]+'_d.h'
+  input += files(h)
+  output_files += fname
+  output_install += get_option('includedir')
+endforeach
+
+generated_headers += custom_target('generated_catalog_headers',
+    input: input,
+    depend_files: bki_data,
+    build_by_default: true,
+    install: true,
+    output: output_files,
+    install_dir: output_install,
+    command: [perl, files('../../backend/catalog/genbki.pl'), '--include-path=@SOURCE_ROOT@/src/include', '--set-version='+pg_version_major.to_string(), '--output=@OUTDIR@', '@INPUT@']
+    )
+
+
+# 'reformat-dat-files' is a convenience target for rewriting the
+# catalog data files in our standard format.  This includes collapsing
+# out any entries that are redundant with a BKI_DEFAULT annotation.
+run_target('reformat-dat-files',
+  command: [perl, files('reformat_dat_file.pl'), '--output', '@CURRENT_SOURCE_DIR@', bki_data],
+)
+
+# 'expand-dat-files' is a convenience target for expanding out all
+# default values in the catalog data files.  This should be run before
+# altering or removing any BKI_DEFAULT annotation.
+run_target('expand-dat-files',
+  command: [perl, files('reformat_dat_file.pl'), '--output', '@CURRENT_SOURCE_DIR@', bki_data, '--full-tuples'],
+)
diff --git a/src/include/meson.build b/src/include/meson.build
new file mode 100644
index 00000000000..c3af4a2574f
--- /dev/null
+++ b/src/include/meson.build
@@ -0,0 +1,50 @@
+configure_file(input : 'pg_config_ext.h.meson',
+  output : 'pg_config_ext.h',
+  configuration : cdata)
+
+system = host_machine.system()
+if system == 'windows'
+  system = 'win32'
+endif
+
+configure_file(
+  output : 'pg_config_os.h',
+  input: files('port/@0@.h'.format(system)),
+  install: true,
+  install_dir : get_option('includedir'),
+  copy : true)
+
+configure_file(
+  output : 'pg_config.h',
+  install : true,
+  install_dir : get_option('includedir'),
+  configuration : cdata)
+
+
+config_paths_data = configuration_data()
+config_paths_data.set_quoted('PGBINDIR', get_option('prefix') / get_option('bindir'))
+config_paths_data.set_quoted('PGSHAREDIR', get_option('prefix') / get_option('datadir'))
+config_paths_data.set_quoted('SYSCONFDIR', get_option('prefix') / get_option('sysconfdir'))
+config_paths_data.set_quoted('INCLUDEDIR', get_option('prefix') / get_option('includedir'))
+# FIXME: shouldn't be the same
+config_paths_data.set_quoted('PKGINCLUDEDIR', get_option('prefix') / get_option('includedir'))
+config_paths_data.set_quoted('INCLUDEDIRSERVER', get_option('prefix') / get_option('includedir'))
+config_paths_data.set_quoted('LIBDIR', get_option('prefix') / get_option('libdir'))
+# FIXME: figure out logic for pkglibdir
+config_paths_data.set_quoted('PKGLIBDIR', get_option('prefix') / get_option('libdir'))
+config_paths_data.set_quoted('LOCALEDIR', get_option('prefix') / get_option('localedir'))
+config_paths_data.set_quoted('DOCDIR', get_option('prefix') / get_option('datadir') / 'doc/postgresql')
+config_paths_data.set_quoted('HTMLDIR', get_option('prefix') / get_option('datadir') / 'doc/postgresql')
+config_paths_data.set_quoted('MANDIR', get_option('prefix') / get_option('datadir') / 'doc/postgresql')
+
+configure_file(
+  output: 'pg_config_paths.h',
+  configuration: config_paths_data,
+  install: false
+)
+
+
+subdir('utils')
+subdir('storage')
+subdir('catalog')
+subdir('parser')
diff --git a/src/include/parser/meson.build b/src/include/parser/meson.build
new file mode 100644
index 00000000000..caf4c092909
--- /dev/null
+++ b/src/include/parser/meson.build
@@ -0,0 +1,10 @@
+backend_parser_header = custom_target('gram',
+  input: [files('../../backend/parser/gram.y')],
+  output: ['gram.c', 'gram.h'],
+  command: [bison, bisonflags, '-d', '-o', '@OUTPUT0@', '@INPUT0@'],
+  install: true,
+  # Only install gram.h, not gram.c
+  install_dir: [false, get_option('includedir')]
+)
+
+#generated_backend_headers += backend_parser[1]
diff --git a/src/include/pch/c_pch.h b/src/include/pch/c_pch.h
new file mode 100644
index 00000000000..f40c757ca62
--- /dev/null
+++ b/src/include/pch/c_pch.h
@@ -0,0 +1 @@
+#include "c.h"
diff --git a/src/include/pch/postgres_pch.h b/src/include/pch/postgres_pch.h
new file mode 100644
index 00000000000..71b2f35f76b
--- /dev/null
+++ b/src/include/pch/postgres_pch.h
@@ -0,0 +1 @@
+#include "postgres.h"
diff --git a/src/include/pg_config_ext.h.meson b/src/include/pg_config_ext.h.meson
new file mode 100644
index 00000000000..57cdfca0cfd
--- /dev/null
+++ b/src/include/pg_config_ext.h.meson
@@ -0,0 +1,7 @@
+/*
+ * src/include/pg_config_ext.h.in.  This is generated manually, not by
+ * autoheader, since we want to limit which symbols get defined here.
+ */
+
+/* Define to the name of a signed 64-bit integer type. */
+#mesondefine PG_INT64_TYPE
diff --git a/src/include/storage/meson.build b/src/include/storage/meson.build
new file mode 100644
index 00000000000..ef2bbb7c6f7
--- /dev/null
+++ b/src/include/storage/meson.build
@@ -0,0 +1,16 @@
+# FIXME: this creates an unnecessary lwlocknames.c - but it's not
+# obvious how to avoid that: meson insist on output files being in the
+# current dir.
+
+lwlocknames = custom_target('lwlocknames',
+  input : files('../../backend/storage/lmgr/lwlocknames.txt'),
+  output : ['lwlocknames.h', 'lwlocknames.c'],
+  command : [perl, files('../../backend/storage/lmgr/generate-lwlocknames.pl'), '-o', '@OUTDIR@', '@INPUT@'],
+  build_by_default: true,
+  install: true,
+  install_dir: [get_option('includedir'), false],
+)
+
+lwlocknames_h = lwlocknames[0]
+
+generated_backend_headers += lwlocknames_h
diff --git a/src/include/utils/meson.build b/src/include/utils/meson.build
new file mode 100644
index 00000000000..b9c959b474d
--- /dev/null
+++ b/src/include/utils/meson.build
@@ -0,0 +1,22 @@
+errcodes = custom_target('errcodes',
+  input : files('../../backend/utils/errcodes.txt'),
+  output : ['errcodes.h'],
+  command : [perl, files('../../backend/utils/generate-errcodes.pl'), '@INPUT@', '@OUTPUT@']
+)
+generated_headers += errcodes
+
+generated_backend_headers += custom_target('probes.d',
+  input: files('../../backend/utils/probes.d'),
+  output : 'probes.h',
+  capture: true,
+  command : [sed, '-f', files('../../backend/utils/Gen_dummy_probes.sed'), '@INPUT@']
+)
+
+fmgrtab_target = custom_target('fmgrtab',
+  input: '../catalog/pg_proc.dat',
+  output : ['fmgroids.h', 'fmgrprotos.h', 'fmgrtab.c'],
+  command: [perl, '-I', '@SOURCE_ROOT@/src/backend/catalog/', files('../../backend/utils/Gen_fmgrtab.pl'), '--include-path=@SOURCE_ROOT@/src/include', '--output=@OUTDIR@', '@INPUT@']
+)
+
+generated_backend_headers += fmgrtab_target[0]
+generated_backend_headers += fmgrtab_target[1]
diff --git a/src/interfaces/libpq/meson.build b/src/interfaces/libpq/meson.build
new file mode 100644
index 00000000000..4b716f0e89d
--- /dev/null
+++ b/src/interfaces/libpq/meson.build
@@ -0,0 +1,99 @@
+libpq_sources = files(
+  'fe-auth-scram.c',
+  'fe-connect.c',
+  'fe-exec.c',
+  'fe-lobj.c',
+  'fe-misc.c',
+  'fe-print.c',
+  'fe-protocol3.c',
+  'fe-secure.c',
+  'fe-trace.c',
+  'legacy-pqsignal.c',
+  'libpq-events.c',
+  'pqexpbuffer.c',
+  'fe-auth.c',
+)
+
+if host_machine.system() == 'windows'
+  libpq_sources += files('win32.c', 'pthread-win32.c')
+endif
+
+if ssl.found()
+  libpq_sources += files('fe-secure-common.c')
+  libpq_sources += files('fe-secure-openssl.c')
+endif
+
+if gssapi.found()
+  libpq_sources += files(
+    'fe-secure-gssapi.c',
+    'fe-gssapi-common.c'
+  )
+endif
+
+export_file = custom_target('libpq_exports.list',
+  input: [files('exports.txt')],
+  output: ['@BASENAME@.list'],
+  command: [perl, files('../../tools/gen_versioning_script.pl'),
+    host_machine.system() == 'darwin' ? 'darwin' : 'gnu',
+    '@INPUT0@', '@OUTPUT0@'],
+  build_by_default: false,
+  install: false,
+)
+
+libpq_def = custom_target('libpq.def',
+  command: [perl, files('../../tools/msvc/export2def.pl'), '@OUTPUT@', '@INPUT0@', 'libpq'],
+  input: files('exports.txt'),
+  output: 'libpq.def',
+  build_by_default: false,
+  install: false,
+)
+
+# port needs to be in include path due to pthread-win32.h
+libpq_inc = include_directories('.', '../../port')
+libpq_deps = [frontend_shlib_code, thread_dep, ssl, ldap, gssapi]
+libpq_link_depends = []
+
+libpq_kwargs = default_lib_args + {
+  'version': '5.'+pg_version_major.to_string(),
+}
+
+
+if host_machine.system() == 'darwin'
+  libpq_kwargs = libpq_kwargs + {
+    'link_args': ['-exported_symbols_list', export_file.full_path()],
+    'link_depends': export_file,
+    'soversion': '5',
+  }
+elif host_machine.system() == 'windows'
+  libpq_deps += cc.find_library('secur32', required: true)
+
+  libpq_kwargs = libpq_kwargs + {
+    'vs_module_defs': libpq_def,
+    'soversion': '',
+  }
+else
+  libpq_kwargs = libpq_kwargs + {
+    'link_args': '-Wl,--version-script=' + export_file.full_path(),
+    'link_depends': export_file,
+    'soversion': '5',
+  }
+endif
+
+libpq_so = shared_library('pq',
+  libpq_sources,
+  include_directories : [libpq_inc, postgres_inc],
+  c_args: ['-DFRONTEND'],
+  c_pch: '../../include/pch/c_pch.h',
+  dependencies: libpq_deps,
+  kwargs: libpq_kwargs,
+)
+
+libpq = declare_dependency(
+  link_with: [libpq_so],
+  include_directories: [include_directories('.')]
+)
+
+install_headers('libpq-fe.h', 'libpq-events.h')
+# FIXME: adjust path
+install_headers('libpq-int.h', 'pqexpbuffer.h')
+install_data('pg_service.conf.sample', install_dir: get_option('datadir'))
diff --git a/src/meson.build b/src/meson.build
new file mode 100644
index 00000000000..414be1db419
--- /dev/null
+++ b/src/meson.build
@@ -0,0 +1,10 @@
+# libraries that other subsystems might depend uppon first, in their
+# respective dependency order
+
+subdir('timezone')
+
+subdir('backend')
+
+subdir('bin')
+
+subdir('pl')
diff --git a/src/pl/meson.build b/src/pl/meson.build
new file mode 100644
index 00000000000..b720e922093
--- /dev/null
+++ b/src/pl/meson.build
@@ -0,0 +1,4 @@
+subdir('plpgsql')
+
+subdir('plperl')
+subdir('plpython')
diff --git a/src/pl/plperl/meson.build b/src/pl/plperl/meson.build
new file mode 100644
index 00000000000..a5a994e845f
--- /dev/null
+++ b/src/pl/plperl/meson.build
@@ -0,0 +1,81 @@
+if not perl_dep.found()
+  subdir_done()
+endif
+
+plperl_sources = files(
+  'plperl.c',
+)
+
+subppdir = run_command(perl, '-e', 'use List::Util qw(first); print first { -r "$_/ExtUtils/xsubpp" } @INC',
+  check: true).stdout()
+xsubpp = '@0@/ExtUtils/xsubpp'.format(subppdir)
+typemap = '@0@/ExtUtils/typemap'.format(subppdir)
+
+plperl_sources += custom_target('perlchunks.h',
+  input: files('plc_perlboot.pl', 'plc_trusted.pl'),
+  output: 'perlchunks.h',
+  capture: true,
+  command: [perl, files('text2macro.pl'), '--strip=^(\#.*|\s*)$', '@INPUT@']
+)
+
+plperl_sources += custom_target('plperl_opmask.h',
+  input: files('plperl_opmask.pl'),
+  output: 'plperl_opmask.h',
+  command: [perl, '@INPUT@', '@OUTPUT@']
+)
+
+foreach n : ['SPI', 'Util']
+  xs = files(n+'.xs')
+  xs_c_name = n+'.c'
+
+  # FIXME: -output option is only available in perl 5.9.3 - but that's
+  # probably a fine minimum requirement?
+  xs_c = custom_target(xs_c_name,
+    input: xs,
+    output: xs_c_name,
+    command: [perl, xsubpp, '-typemap', typemap, '-output', '@OUTPUT@', '@INPUT@']
+  )
+  plperl_sources += xs_c
+endforeach
+
+plperl_inc = include_directories('.')
+shared_module('plperl',
+  plperl_sources,
+  c_pch: '../../include/pch/postgres_pch.h',
+  include_directories: [plperl_inc, postgres_inc],
+  kwargs: pg_mod_args + {
+    'dependencies': [perl_dep, pg_mod_args['dependencies']],
+  },
+)
+
+install_data(
+  'plperl.control',
+  'plperl--1.0.sql',
+  install_dir: get_option('datadir') / 'extension'
+)
+
+install_data(
+  'plperlu.control',
+  'plperlu--1.0.sql',
+  install_dir: get_option('datadir') / 'extension'
+)
+
+regress_tests += {
+  'name': 'plperl',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'plperl_setup',
+    'plperl',
+    'plperl_lc',
+    'plperl_trigger',
+    'plperl_shared',
+    'plperl_elog',
+    'plperl_util',
+    'plperl_init',
+    'plperlu',
+    'plperl_array',
+    'plperl_call',
+    'plperl_transaction',
+   ],
+}
diff --git a/src/pl/plpgsql/meson.build b/src/pl/plpgsql/meson.build
new file mode 100644
index 00000000000..9537275d67c
--- /dev/null
+++ b/src/pl/plpgsql/meson.build
@@ -0,0 +1 @@
+subdir('src')
diff --git a/src/pl/plpgsql/src/meson.build b/src/pl/plpgsql/src/meson.build
new file mode 100644
index 00000000000..b040e5e8507
--- /dev/null
+++ b/src/pl/plpgsql/src/meson.build
@@ -0,0 +1,67 @@
+plpgsql_sources = files(
+  'pl_comp.c',
+  'pl_exec.c',
+  'pl_funcs.c',
+  'pl_handler.c',
+  'pl_scanner.c',
+)
+
+plpgsql_sources += custom_target('gram',
+  input: ['pl_gram.y'],
+  output: ['pl_gram.c', 'pl_gram.h'],
+  command: [bison, bisonflags, '-d', '-o', '@OUTPUT0@', '@INPUT0@'])
+
+gen_plerrcodes = files('generate-plerrcodes.pl')
+plpgsql_sources += custom_target('plerrcodes',
+  input: ['../../../../src/backend/utils/errcodes.txt'],
+  output: ['plerrcodes.h'],
+  command: [perl, gen_plerrcodes, '@INPUT0@'],
+  capture: true)
+
+gen_keywordlist = files('../../../../src/tools/gen_keywordlist.pl')
+plpgsql_sources += custom_target('pl_reserved_kwlist',
+  input: ['pl_reserved_kwlist.h'],
+  output: ['pl_reserved_kwlist_d.h'],
+  command: [perl, '-I', '@SOURCE_ROOT@/src/tools', gen_keywordlist, '--output', '@OUTDIR@', '--varname', 'ReservedPLKeywords', '@INPUT@']
+)
+
+plpgsql_sources += custom_target('pl_unreserved_kwlist',
+  input: ['pl_unreserved_kwlist.h'],
+  output: ['pl_unreserved_kwlist_d.h'],
+  command: [perl, '-I', '@SOURCE_ROOT@/src/tools', gen_keywordlist, '--output', '@OUTDIR@', '--varname', 'UnreservedPLKeywords', '@INPUT@']
+)
+
+shared_module('plpgsql',
+  plpgsql_sources,
+  c_pch: '../../../include/pch/postgres_pch.h',
+  include_directories: include_directories('.'),
+  kwargs: pg_mod_args,
+)
+
+install_data('plpgsql.control', 'plpgsql--1.0.sql',
+  install_dir: get_option('datadir') / 'extension'
+)
+
+install_headers('plpgsql.h',
+  install_dir: get_option('includedir') / 'server')
+
+
+regress_tests += {
+  'name': 'plpgsql',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+     'plpgsql_array',
+     'plpgsql_call',
+     'plpgsql_control',
+     'plpgsql_copy',
+     'plpgsql_domain',
+     'plpgsql_record',
+     'plpgsql_cache',
+     'plpgsql_simple',
+     'plpgsql_transaction',
+     'plpgsql_trap',
+     'plpgsql_trigger',
+     'plpgsql_varprops',
+  ],
+}
diff --git a/src/pl/plpython/meson.build b/src/pl/plpython/meson.build
new file mode 100644
index 00000000000..48a02b532aa
--- /dev/null
+++ b/src/pl/plpython/meson.build
@@ -0,0 +1,78 @@
+if not python3.found()
+  subdir_done()
+endif
+
+plpython_sources = files(
+  'plpy_cursorobject.c',
+  'plpy_elog.c',
+  'plpy_exec.c',
+  'plpy_main.c',
+  'plpy_planobject.c',
+  'plpy_plpymodule.c',
+  'plpy_procedure.c',
+  'plpy_resultobject.c',
+  'plpy_spi.c',
+  'plpy_subxactobject.c',
+  'plpy_typeio.c',
+  'plpy_util.c',
+)
+
+plpython_sources += custom_target('spiexceptions.h',
+    input: files('../../backend/utils/errcodes.txt'),
+    output: 'spiexceptions.h',
+    command: [perl, files('generate-spiexceptions.pl'), '@INPUT@'],
+    capture: true
+  )
+
+
+# FIXME: need to duplicate import library ugliness?
+plpython_inc = include_directories('.')
+
+shared_module('plpython3',
+  plpython_sources,
+  c_pch: '../../include/pch/postgres_pch.h',
+  include_directories: [plpython_inc, postgres_inc],
+  kwargs: pg_mod_args + {
+    'dependencies': [python3, pg_mod_args['dependencies']],
+  },
+)
+
+# FIXME: Only install the relevant versions
+install_data(
+  'plpython3u.control',
+  'plpython3u--1.0.sql',
+  install_dir: get_option('datadir') / 'extension'
+)
+
+plpython_regress = [
+  'plpython_schema',
+  'plpython_populate',
+  'plpython_test',
+  'plpython_do',
+  'plpython_global',
+  'plpython_import',
+  'plpython_spi',
+  'plpython_newline',
+  'plpython_void',
+  'plpython_call',
+  'plpython_params',
+  'plpython_setof',
+  'plpython_record',
+  'plpython_trigger',
+  'plpython_types',
+  'plpython_error',
+  'plpython_ereport',
+  'plpython_unicode',
+  'plpython_quote',
+  'plpython_composite',
+  'plpython_subtransaction',
+  'plpython_transaction',
+  'plpython_drop',
+]
+
+regress_tests += {
+  'name': 'plpython',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': plpython_regress,
+}
diff --git a/src/port/meson.build b/src/port/meson.build
new file mode 100644
index 00000000000..c2f35c02f1f
--- /dev/null
+++ b/src/port/meson.build
@@ -0,0 +1,191 @@
+pgport_sources = [
+  'bsearch_arg.c',
+  'chklocale.c',
+  'erand48.c',
+  'inet_net_ntop.c',
+  'noblock.c',
+  'path.c',
+  'pg_bitutils.c',
+  'pg_strong_random.c',
+  'pgcheckdir.c',
+  'pgmkdirp.c',
+  'pgsleep.c',
+  'pgstrcasecmp.c',
+  'pgstrsignal.c',
+  'pqsignal.c',
+  'qsort.c',
+  'qsort_arg.c',
+  'quotes.c',
+  'snprintf.c',
+  'strerror.c',
+  'tar.c',
+  'thread.c',
+]
+
+if host_machine.system() == 'windows'
+  pgport_sources += files(
+    'dirmod.c',
+    'kill.c',
+    'open.c',
+    'system.c',
+    'win32env.c',
+    'win32error.c',
+    'win32security.c',
+    'win32setlocale.c',
+    'win32stat.c',
+  )
+endif
+
+if cc.get_id() == 'msvc'
+  pgport_sources += files(
+    'dirent.c',
+  )
+endif
+
+# Replacement functionality to be built if corresponding configure symbol
+# is false
+replace_funcs_neg = [
+    ['dlopen'],
+    ['explicit_bzero'],
+    ['fls'],
+    ['getaddrinfo'],
+    ['getopt'],
+    ['getopt_long'],
+    ['getpeereid'],
+    ['getpeereid'],
+    ['getrusage'],
+    ['gettimeofday'],
+    ['inet_aton'],
+    ['link'],
+    ['mkdtemp'],
+    ['pread'],
+    ['preadv', 'HAVE_DECL_PREADV'],
+    ['pwrite'],
+    ['pwritev', 'HAVE_DECL_PWRITEV'],
+    ['random'],
+    ['srandom'],
+    ['strlcat'],
+    ['strlcpy'],
+    ['strnlen'],
+]
+
+# Replacement functionality to be built if corresponding configure symbol
+# is true
+replace_funcs_pos = [
+  # x86/x64
+  ['pg_crc32c_sse42', 'USE_SSE42_CRC32C'],
+  ['pg_crc32c_sse42', 'USE_SSE42_CRC32C_WITH_RUNTIME_CHECK', 'crc'],
+  ['pg_crc32c_sse42_choose', 'USE_SSE42_CRC32C_WITH_RUNTIME_CHECK'],
+  ['pg_crc32c_sb8', 'USE_SSE42_CRC32C_WITH_RUNTIME_CHECK'],
+
+  # arm / aarch64
+  ['pg_crc32c_armv8', 'USE_ARMV8_CRC32C'],
+  ['pg_crc32c_armv8', 'USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK', 'crc'],
+  ['pg_crc32c_armv8_choose', 'USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK'],
+  ['pg_crc32c_sb8', 'USE_ARMV8_CRC32C_WITH_RUNTIME_CHECK'],
+
+  # generic fallback
+  ['pg_crc32c_sb8', 'USE_SLICING_BY_8_CRC32C'],
+]
+
+pgport_cflags = {'crc': cflags_crc}
+pgport_sources_cflags = {'crc': []}
+
+foreach f : replace_funcs_neg
+  func = f.get(0)
+  varname = f.get(1, 'HAVE_@0@'.format(func.to_upper()))
+  filename = '@0@.c'.format(func)
+
+  val = '@0@'.format(cdata.get(varname, 'false'))
+  if val == 'false' or val == '0'
+    pgport_sources += files(filename)
+  endif
+endforeach
+
+foreach f : replace_funcs_pos
+  func = f.get(0)
+  varname = f.get(1, 'HAVE_@0@'.format(func.to_upper()))
+  filename = '@0@.c'.format(func)
+
+  val = '@0@'.format(cdata.get(varname, 'false'))
+  if val == 'true' or val == '1'
+    src = files(filename)
+    if f.length() > 2
+      pgport_sources_cflags += {f[2]: pgport_sources_cflags[f[2]] + src}
+    else
+      pgport_sources += src
+    endif
+  endif
+endforeach
+
+
+if (host_machine.system() == 'windows' or host_machine.system() == 'cygwin') and \
+  (cc.get_id() != 'msvc' or cc.version().version_compare('<14.0'))
+
+  # Cygwin and (apparently, based on test results) Mingw both
+  # have a broken strtof(), so substitute the same replacement
+  # code we use with VS2013. That's not a perfect fix, since
+  # (unlike with VS2013) it doesn't avoid double-rounding, but
+  # we have no better options. To get that, though, we have to
+  # force the file to be compiled despite HAVE_STRTOF.
+  pgport_sources += files('strtof.c')
+  message('On @0@ with compiler @1@ @2@ we will use our strtof wrapper.'.format(
+    host_machine.system(), cc.get_id(), cc.version()))
+endif
+
+if not cdata.has('HAVE_PTHREAD_BARRIER_WAIT') and host_machine.system() != 'windows'
+   pgport_sources += files('pthread_barrier_wait.c')
+endif
+
+
+# Build pgport once for backend, once for use in frontend binaries, and once
+# for use in shared libraries
+pgport = {}
+pgport_variants = {
+  'srv' : internal_lib_args + {
+    'dependencies': [backend_port_code],
+   },
+  'static' : default_lib_args + {
+    'dependencies': [frontend_port_code],
+   },
+  'shlib' : default_lib_args + {
+    'pic': true,
+    'dependencies': [frontend_port_code],
+   },
+}
+
+foreach name, opts : pgport_variants
+
+  # Build internal static libraries for sets of files that need to be built
+  # with different cflags
+  cflag_libs = []
+  foreach cflagname, sources: pgport_sources_cflags
+    if sources.length() == 0
+      continue
+    endif
+    c_args = opts.get('c_args', []) + pgport_cflags[cflagname]
+    cflag_libs += static_library('pgport_@0@_@1@'.format(cflagname, name),
+      sources,
+      c_pch: '../include/pch/c_pch.h',
+      kwargs: opts + {
+        'c_args': c_args,
+        'build_by_default': false,
+        'install': false,
+      },
+    )
+  endforeach
+
+  lib = static_library('pgport_@0@'.format(name),
+      pgport_sources,
+      link_with: cflag_libs,
+      c_pch: '../include/pch/c_pch.h',
+      kwargs: opts + {
+        'dependencies': opts['dependencies'] + [ssl],
+      }
+    )
+  pgport += {name: lib}
+endforeach
+
+pgport_srv = pgport['srv']
+pgport_static = pgport['static']
+pgport_shlib = pgport['shlib']
diff --git a/src/port/win32ver.rc.in b/src/port/win32ver.rc.in
new file mode 100644
index 00000000000..d5c98e2e8fb
--- /dev/null
+++ b/src/port/win32ver.rc.in
@@ -0,0 +1,41 @@
+#include <winver.h>
+#include "pg_config.h"
+
+// https://docs.microsoft.com/en-us/windows/win32/menurc/versioninfo-resource
+
+VS_VERSION_INFO VERSIONINFO
+ FILEVERSION    PG_MAJORVERSION_NUM,0,PG_MINORVERSION_NUM,0
+ PRODUCTVERSION PG_MAJORVERSION_NUM,0,PG_MINORVERSION_NUM,0
+ FILEFLAGSMASK  VS_FFI_FILEFLAGSMASK
+ FILEFLAGS      0x0L
+ FILEOS         VOS_NT_WINDOWS32
+ FILETYPE	@VFT_TYPE@
+ FILESUBTYPE    0x0L
+BEGIN
+ BLOCK "StringFileInfo"
+ BEGIN
+  BLOCK "040904B0"			// U.S. English, Unicode
+  BEGIN
+   VALUE "CompanyName",      "PostgreSQL Global Development Group"
+   VALUE "FileDescription",  @FILEDESC@
+   /*
+    * XXX: In the autoconf / src/tools/msvc build this was set differently than
+    * ProductVersion below, using the current date. But that doesn't seem like a
+    * good idea, because it makes the build not reproducible and causes
+    * unnecessary rebuilds?
+    */
+   VALUE "FileVersion",      PG_VERSION
+   VALUE "InternalName",     @INTERNAL_NAME@
+   VALUE "LegalCopyright", "Portions Copyright (c) 1996-2021, PostgreSQL Global Development Group. Portions Copyright (c) 1994, Regents of the University of California."
+   VALUE "OriginalFileName", @ORIGINAL_NAME@
+   VALUE "ProductName",      "PostgreSQL"
+   VALUE "ProductVersion",   PG_VERSION
+  END
+ END
+ BLOCK "VarFileInfo"
+ BEGIN
+  VALUE "Translation", 0x0409, 1200	// U.S. English, Unicode
+ END
+END
+
+IDI_ICON ICON @ICO@
diff --git a/src/test/authentication/meson.build b/src/test/authentication/meson.build
new file mode 100644
index 00000000000..be41fb314a5
--- /dev/null
+++ b/src/test/authentication/meson.build
@@ -0,0 +1,9 @@
+tap_tests += {
+  'name': 'authentication',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'tests': [
+    't/001_password.pl',
+    't/002_saslprep.pl',
+  ],
+}
diff --git a/src/test/isolation/meson.build b/src/test/isolation/meson.build
new file mode 100644
index 00000000000..ea8baa20634
--- /dev/null
+++ b/src/test/isolation/meson.build
@@ -0,0 +1,49 @@
+# pg_regress_c helpfully provided by regress/meson.build
+
+isolation_sources = pg_regress_c + files(
+  'isolation_main.c',
+)
+
+# see src/backend/replication/meson.build for depend logic
+spec_scanner = custom_target('specscanner',
+  input : files('specscanner.l'),
+  output : ['specscanner.c'],
+  command : [flex, '-o', '@OUTPUT0@', '@INPUT@']
+)
+
+isolationtester_sources = files('isolationtester.c')
+isolationtester_sources += custom_target('specparse',
+  input: 'specparse.y',
+  output: 'specparse.c',
+  depends: spec_scanner,
+  command: [bison, bisonflags, '-o', '@OUTPUT@', '@INPUT0@'])
+
+pg_isolation_regress = executable('pg_isolation_regress',
+  isolation_sources,
+  c_args: pg_regress_cflags,
+  include_directories: [pg_regress_inc],
+  dependencies: [frontend_code],
+  kwargs: default_bin_args + {
+    'install': false
+  },
+)
+
+isolationtester = executable('isolationtester',
+  isolationtester_sources,
+  include_directories: include_directories('.'),
+  dependencies: [frontend_code, libpq],
+  kwargs: default_bin_args + {
+    'install': false
+  },
+)
+
+isolation_tests += {
+  'name': 'main',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'schedule': files('isolation_schedule'),
+  'test_kwargs': {
+    'priority': 40,
+    'timeout': 1000,
+  },
+}
diff --git a/src/test/kerberos/meson.build b/src/test/kerberos/meson.build
new file mode 100644
index 00000000000..9f9957a3b4c
--- /dev/null
+++ b/src/test/kerberos/meson.build
@@ -0,0 +1,12 @@
+tap_tests += {
+  'name': 'kerberos',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'tests': [
+    't/001_auth.pl',
+  ],
+  'env' : {
+    'with_gssapi': gssapi.found() ? 'yes' : 'no',
+    'with_krb_srvnam': 'postgres',
+  },
+}
diff --git a/src/test/ldap/meson.build b/src/test/ldap/meson.build
new file mode 100644
index 00000000000..58eb9adc6f5
--- /dev/null
+++ b/src/test/ldap/meson.build
@@ -0,0 +1,9 @@
+tap_tests += {
+  'name': 'ldap',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'tests': [
+    't/001_auth.pl',
+  ],
+  'env' : {'with_ldap': ldap.found() ? 'yes' : 'no'},
+}
diff --git a/src/test/meson.build b/src/test/meson.build
new file mode 100644
index 00000000000..f0b0d3d3b5e
--- /dev/null
+++ b/src/test/meson.build
@@ -0,0 +1,19 @@
+subdir('regress')
+subdir('isolation')
+
+subdir('authentication')
+subdir('recovery')
+subdir('subscription')
+subdir('modules')
+
+if ssl.found()
+   subdir('ssl')
+endif
+
+if ldap.found()
+   subdir('ldap')
+endif
+
+if gssapi.found()
+   subdir('kerberos')
+endif
diff --git a/src/test/modules/brin/meson.build b/src/test/modules/brin/meson.build
new file mode 100644
index 00000000000..99ccaac5b38
--- /dev/null
+++ b/src/test/modules/brin/meson.build
@@ -0,0 +1,19 @@
+isolation_tests += {
+  'name': 'brin',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'specs': [
+    'summarization-and-inprogress-insertion',
+  ]
+}
+
+
+tap_tests += {
+  'name': 'brin',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'tests': [
+    't/01_workitems.pl',
+  ],
+}
+
diff --git a/src/test/modules/commit_ts/meson.build b/src/test/modules/commit_ts/meson.build
new file mode 100644
index 00000000000..2794d837c35
--- /dev/null
+++ b/src/test/modules/commit_ts/meson.build
@@ -0,0 +1,20 @@
+regress_tests += {
+  'name': 'commit_ts',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'commit_timestamp',
+  ]
+}
+
+tap_tests += {
+  'name': 'commit_ts',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'tests': [
+    't/001_base.pl',
+    't/002_standby.pl',
+    't/003_standby_2.pl',
+    't/004_restart.pl',
+  ],
+}
diff --git a/src/test/modules/delay_execution/meson.build b/src/test/modules/delay_execution/meson.build
new file mode 100644
index 00000000000..58fe5a1a21d
--- /dev/null
+++ b/src/test/modules/delay_execution/meson.build
@@ -0,0 +1,15 @@
+# FIXME: prevent install during main install, but not during test :/
+delay_execution = shared_module('delay_execution',
+  ['delay_execution.c'],
+  kwargs: pg_mod_args,
+)
+
+isolation_tests += {
+  'name': 'delay_execution',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'specs': [
+    'partition-addition',
+    'partition-removal-1',
+  ]
+}
diff --git a/src/test/modules/dummy_index_am/meson.build b/src/test/modules/dummy_index_am/meson.build
new file mode 100644
index 00000000000..a9c49bd9554
--- /dev/null
+++ b/src/test/modules/dummy_index_am/meson.build
@@ -0,0 +1,20 @@
+# FIXME: prevent install during main install, but not during test :/
+dummy_index_am = shared_module('dummy_index_am',
+  ['dummy_index_am.c'],
+  kwargs: pg_mod_args,
+)
+
+install_data(
+  'dummy_index_am.control',
+  'dummy_index_am--1.0.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'dummy_index_am',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'reloptions',
+  ]
+}
diff --git a/src/test/modules/dummy_seclabel/meson.build b/src/test/modules/dummy_seclabel/meson.build
new file mode 100644
index 00000000000..ed31d8f9530
--- /dev/null
+++ b/src/test/modules/dummy_seclabel/meson.build
@@ -0,0 +1,20 @@
+# FIXME: prevent install during main install, but not during test :/
+dummy_seclabel = shared_module('dummy_seclabel',
+  ['dummy_seclabel.c'],
+  kwargs: pg_mod_args,
+)
+
+install_data(
+  'dummy_seclabel.control',
+  'dummy_seclabel--1.0.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'dummy_seclabel',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'dummy_seclabel',
+  ]
+}
diff --git a/src/test/modules/libpq_pipeline/meson.build b/src/test/modules/libpq_pipeline/meson.build
new file mode 100644
index 00000000000..2f850215a6f
--- /dev/null
+++ b/src/test/modules/libpq_pipeline/meson.build
@@ -0,0 +1,21 @@
+libpq_pipeline = executable('libpq_pipeline',
+  files(
+    'libpq_pipeline.c',
+  ),
+  dependencies: [frontend_code, libpq],
+  kwargs: default_bin_args + {
+    'install': false,
+  },
+)
+
+tap_tests += {
+  'name': 'libpq_pipeline',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'env': {
+    'PATH': meson.current_build_dir(),
+  },
+  'tests': [
+    't/001_libpq_pipeline.pl',
+  ]
+}
diff --git a/src/test/modules/meson.build b/src/test/modules/meson.build
new file mode 100644
index 00000000000..c98225c6e7b
--- /dev/null
+++ b/src/test/modules/meson.build
@@ -0,0 +1,25 @@
+subdir('brin')
+subdir('commit_ts')
+subdir('delay_execution')
+subdir('dummy_index_am')
+subdir('dummy_seclabel')
+subdir('libpq_pipeline')
+subdir('plsample')
+subdir('snapshot_too_old')
+subdir('spgist_name_ops')
+subdir('ssl_passphrase_callback')
+subdir('test_bloomfilter')
+subdir('test_ddl_deparse')
+subdir('test_extensions')
+subdir('test_ginpostinglist')
+subdir('test_integerset')
+subdir('test_misc')
+subdir('test_parser')
+subdir('test_pg_dump')
+subdir('test_predtest')
+subdir('test_rbtree')
+subdir('test_regex')
+subdir('test_rls_hooks')
+subdir('test_shm_mq')
+subdir('unsafe_tests')
+subdir('worker_spi')
diff --git a/src/test/modules/plsample/meson.build b/src/test/modules/plsample/meson.build
new file mode 100644
index 00000000000..3f70688fb89
--- /dev/null
+++ b/src/test/modules/plsample/meson.build
@@ -0,0 +1,20 @@
+# FIXME: prevent install during main install, but not during test :/
+plsample = shared_module('plsample',
+  ['plsample.c'],
+  kwargs: pg_mod_args,
+)
+
+install_data(
+  'plsample.control',
+  'plsample--1.0.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'plsample',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'plsample',
+  ]
+}
diff --git a/src/test/modules/snapshot_too_old/meson.build b/src/test/modules/snapshot_too_old/meson.build
new file mode 100644
index 00000000000..cdf4afd18b8
--- /dev/null
+++ b/src/test/modules/snapshot_too_old/meson.build
@@ -0,0 +1,11 @@
+isolation_tests += {
+  'name': 'snapshot_too_old',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'specs': [
+    'sto_using_cursor',
+    'sto_using_select',
+    'sto_using_hash_index',
+  ],
+  'regress_args': ['--temp-config', files('sto.conf')],
+}
diff --git a/src/test/modules/spgist_name_ops/meson.build b/src/test/modules/spgist_name_ops/meson.build
new file mode 100644
index 00000000000..19aa00892f1
--- /dev/null
+++ b/src/test/modules/spgist_name_ops/meson.build
@@ -0,0 +1,20 @@
+# FIXME: prevent install during main install, but not during test :/
+spgist_name_ops = shared_module('spgist_name_ops',
+  ['spgist_name_ops.c'],
+  kwargs: pg_mod_args,
+)
+
+install_data(
+  'spgist_name_ops.control',
+  'spgist_name_ops--1.0.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'spgist_name_ops',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'spgist_name_ops',
+  ]
+}
diff --git a/src/test/modules/ssl_passphrase_callback/meson.build b/src/test/modules/ssl_passphrase_callback/meson.build
new file mode 100644
index 00000000000..b9fa5ee1cdc
--- /dev/null
+++ b/src/test/modules/ssl_passphrase_callback/meson.build
@@ -0,0 +1,45 @@
+if not ssl.found()
+  subdir_done()
+endif
+
+# FIXME: prevent install during main install, but not during test :/
+ssl_passphrase_callback = shared_module('ssl_passphrase_func',
+  ['ssl_passphrase_func.c'],
+  kwargs: pg_mod_args + {
+    'dependencies': [ssl, pg_mod_args['dependencies']],
+  }
+)
+
+# Targets to generate or remove the ssl certificate and key. Need to be copied
+# to the source afterwards. Normally not needed.
+
+openssl = find_program('openssl', native: true, required: false)
+
+if openssl.found()
+  cert = custom_target('server.crt',
+    output: ['server.crt', 'server.ckey'],
+    command: [openssl, 'req', '-new', '-x509', '-days', '10000', '-nodes', '-out', '@OUTPUT0@',
+      '-keyout', '@OUTPUT1@', '-subj', '/CN=localhost'],
+    build_by_default: false,
+    install: false,
+  )
+
+  # needs to agree with what's in the test script
+  pass = 'FooBaR1'
+
+  enccert = custom_target('server.key',
+    input: [cert[1]],
+    output: ['server.key'],
+    command: [openssl, 'rsa', '-aes256', '-in', '@INPUT0@', '-out', '@OUTPUT0@', '-passout', 'pass:@0@'.format(pass)]
+  )
+endif
+
+tap_tests += {
+  'name': 'ssl_passphrase_callback',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'tests': [
+    't/001_testfunc.pl',
+  ],
+  'env': {'with_ssl': 'openssl'},
+}
diff --git a/src/test/modules/test_bloomfilter/meson.build b/src/test/modules/test_bloomfilter/meson.build
new file mode 100644
index 00000000000..2e995310876
--- /dev/null
+++ b/src/test/modules/test_bloomfilter/meson.build
@@ -0,0 +1,20 @@
+# FIXME: prevent install during main install, but not during test :/
+test_bloomfilter = shared_module('test_bloomfilter',
+  ['test_bloomfilter.c'],
+  kwargs: pg_mod_args,
+)
+
+install_data(
+  'test_bloomfilter.control',
+  'test_bloomfilter--1.0.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'test_bloomfilter',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'test_bloomfilter',
+  ]
+}
diff --git a/src/test/modules/test_ddl_deparse/meson.build b/src/test/modules/test_ddl_deparse/meson.build
new file mode 100644
index 00000000000..3618229594d
--- /dev/null
+++ b/src/test/modules/test_ddl_deparse/meson.build
@@ -0,0 +1,40 @@
+# FIXME: prevent install during main install, but not during test :/
+test_ddl_deparse = shared_module('test_ddl_deparse',
+  ['test_ddl_deparse.c'],
+  kwargs: pg_mod_args,
+)
+
+install_data(
+  'test_ddl_deparse.control',
+  'test_ddl_deparse--1.0.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'test_ddl_deparse',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'test_ddl_deparse',
+    'create_extension',
+    'create_schema',
+    'create_type',
+    'create_conversion',
+    'create_domain',
+    'create_sequence_1',
+    'create_table',
+    'create_transform',
+    'alter_table',
+    'create_view',
+    'create_trigger',
+    'create_rule',
+    'comment_on',
+    'alter_function',
+    'alter_sequence',
+    'alter_ts_config',
+    'alter_type_enum',
+    'opfamily',
+    'defprivs',
+    'matviews',
+  ]
+}
diff --git a/src/test/modules/test_extensions/meson.build b/src/test/modules/test_extensions/meson.build
new file mode 100644
index 00000000000..2ca504f8588
--- /dev/null
+++ b/src/test/modules/test_extensions/meson.build
@@ -0,0 +1,38 @@
+# FIXME: prevent install during main install, but not during test :/
+install_data(
+  'test_ext1--1.0.sql',
+  'test_ext1.control',
+  'test_ext2--1.0.sql',
+  'test_ext2.control',
+  'test_ext3--1.0.sql',
+  'test_ext3.control',
+  'test_ext4--1.0.sql',
+  'test_ext4.control',
+  'test_ext5--1.0.sql',
+  'test_ext5.control',
+  'test_ext6--1.0.sql',
+  'test_ext6.control',
+  'test_ext7--1.0--2.0.sql',
+  'test_ext7--1.0.sql',
+  'test_ext7.control',
+  'test_ext8--1.0.sql',
+  'test_ext8.control',
+  'test_ext_cyclic1--1.0.sql',
+  'test_ext_cyclic1.control',
+  'test_ext_cyclic2--1.0.sql',
+  'test_ext_cyclic2.control',
+  'test_ext_evttrig--1.0--2.0.sql',
+  'test_ext_evttrig--1.0.sql',
+  'test_ext_evttrig.control',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'test_extensions',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'test_extensions',
+    'test_extdepend',
+  ]
+}
diff --git a/src/test/modules/test_ginpostinglist/meson.build b/src/test/modules/test_ginpostinglist/meson.build
new file mode 100644
index 00000000000..e177e90019f
--- /dev/null
+++ b/src/test/modules/test_ginpostinglist/meson.build
@@ -0,0 +1,20 @@
+# FIXME: prevent install during main install, but not during test :/
+test_ginpostinglist = shared_module('test_ginpostinglist',
+  ['test_ginpostinglist.c'],
+  kwargs: pg_mod_args,
+)
+
+install_data(
+  'test_ginpostinglist.control',
+  'test_ginpostinglist--1.0.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'test_ginpostinglist',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'test_ginpostinglist',
+  ]
+}
diff --git a/src/test/modules/test_integerset/meson.build b/src/test/modules/test_integerset/meson.build
new file mode 100644
index 00000000000..ccb8db725e5
--- /dev/null
+++ b/src/test/modules/test_integerset/meson.build
@@ -0,0 +1,20 @@
+# FIXME: prevent install during main install, but not during test :/
+test_integerset = shared_module('test_integerset',
+  ['test_integerset.c'],
+  kwargs: pg_mod_args,
+)
+
+install_data(
+  'test_integerset.control',
+  'test_integerset--1.0.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'test_integerset',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'test_integerset',
+  ]
+}
diff --git a/src/test/modules/test_misc/meson.build b/src/test/modules/test_misc/meson.build
new file mode 100644
index 00000000000..4ee8c562ac0
--- /dev/null
+++ b/src/test/modules/test_misc/meson.build
@@ -0,0 +1,8 @@
+tap_tests += {
+  'name': 'misc',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'tests': [
+    't/001_constraint_validation.pl',
+  ],
+}
diff --git a/src/test/modules/test_parser/meson.build b/src/test/modules/test_parser/meson.build
new file mode 100644
index 00000000000..c43ae95cf2c
--- /dev/null
+++ b/src/test/modules/test_parser/meson.build
@@ -0,0 +1,20 @@
+# FIXME: prevent install during main install, but not during test :/
+test_parser = shared_module('test_parser',
+  ['test_parser.c'],
+  kwargs: pg_mod_args,
+)
+
+install_data(
+  'test_parser.control',
+  'test_parser--1.0.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'test_parser',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'test_parser',
+  ]
+}
diff --git a/src/test/modules/test_pg_dump/meson.build b/src/test/modules/test_pg_dump/meson.build
new file mode 100644
index 00000000000..110b3876832
--- /dev/null
+++ b/src/test/modules/test_pg_dump/meson.build
@@ -0,0 +1,24 @@
+# FIXME: prevent install during main install, but not during test :/
+install_data(
+  'test_pg_dump.control',
+  'test_pg_dump--1.0.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'test_pg_dump',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'test_pg_dump',
+  ]
+}
+
+tap_tests += {
+  'name': 'test_pg_dump',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'tests': [
+    't/001_base.pl',
+  ]
+}
diff --git a/src/test/modules/test_predtest/meson.build b/src/test/modules/test_predtest/meson.build
new file mode 100644
index 00000000000..9f9a9475c8b
--- /dev/null
+++ b/src/test/modules/test_predtest/meson.build
@@ -0,0 +1,20 @@
+# FIXME: prevent install during main install, but not during test :/
+test_predtest = shared_module('test_predtest',
+  ['test_predtest.c'],
+  kwargs: pg_mod_args,
+)
+
+install_data(
+  'test_predtest.control',
+  'test_predtest--1.0.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'test_predtest',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'test_predtest',
+  ]
+}
diff --git a/src/test/modules/test_rbtree/meson.build b/src/test/modules/test_rbtree/meson.build
new file mode 100644
index 00000000000..6bbeca39ec9
--- /dev/null
+++ b/src/test/modules/test_rbtree/meson.build
@@ -0,0 +1,20 @@
+# FIXME: prevent install during main install, but not during test :/
+test_rbtree = shared_module('test_rbtree',
+  ['test_rbtree.c'],
+  kwargs: pg_mod_args,
+)
+
+install_data(
+  'test_rbtree.control',
+  'test_rbtree--1.0.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'test_rbtree',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'test_rbtree',
+  ]
+}
diff --git a/src/test/modules/test_regex/meson.build b/src/test/modules/test_regex/meson.build
new file mode 100644
index 00000000000..c5fd92ee1c6
--- /dev/null
+++ b/src/test/modules/test_regex/meson.build
@@ -0,0 +1,21 @@
+# FIXME: prevent install during main install, but not during test :/
+test_regex = shared_module('test_regex',
+  ['test_regex.c'],
+  kwargs: pg_mod_args,
+)
+
+install_data(
+  'test_regex.control',
+  'test_regex--1.0.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'test_regex',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'test_regex',
+    'test_regex_utf8',
+  ]
+}
diff --git a/src/test/modules/test_rls_hooks/meson.build b/src/test/modules/test_rls_hooks/meson.build
new file mode 100644
index 00000000000..fb8b697e160
--- /dev/null
+++ b/src/test/modules/test_rls_hooks/meson.build
@@ -0,0 +1,19 @@
+# FIXME: prevent install during main install, but not during test :/
+test_rls_hooks = shared_module('test_rls_hooks',
+  ['test_rls_hooks.c'],
+  kwargs: pg_mod_args,
+)
+
+install_data(
+  'test_rls_hooks.control',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'test_rls_hooks',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'test_rls_hooks',
+  ]
+}
diff --git a/src/test/modules/test_shm_mq/meson.build b/src/test/modules/test_shm_mq/meson.build
new file mode 100644
index 00000000000..159943f861e
--- /dev/null
+++ b/src/test/modules/test_shm_mq/meson.build
@@ -0,0 +1,24 @@
+# FIXME: prevent install during main install, but not during test :/
+test_shm_mq = shared_module('test_shm_mq',
+  files(
+    'setup.c',
+    'test.c',
+    'worker.c',
+  ),
+  kwargs: pg_mod_args,
+)
+
+install_data(
+  'test_shm_mq.control',
+  'test_shm_mq--1.0.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'test_shm_mq',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'test_shm_mq',
+  ]
+}
diff --git a/src/test/modules/unsafe_tests/meson.build b/src/test/modules/unsafe_tests/meson.build
new file mode 100644
index 00000000000..9ed4d587721
--- /dev/null
+++ b/src/test/modules/unsafe_tests/meson.build
@@ -0,0 +1,9 @@
+regress_tests += {
+  'name': 'unsafe_tests',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'rolenames',
+    'alter_system_table',
+  ],
+}
diff --git a/src/test/modules/worker_spi/meson.build b/src/test/modules/worker_spi/meson.build
new file mode 100644
index 00000000000..a80bd493ea7
--- /dev/null
+++ b/src/test/modules/worker_spi/meson.build
@@ -0,0 +1,23 @@
+# FIXME: prevent install during main install, but not during test :/
+test_worker_spi = shared_module('worker_spi',
+  files(
+    'worker_spi.c',
+  ),
+  kwargs: pg_mod_args,
+)
+
+install_data(
+  'worker_spi.control',
+  'worker_spi--1.0.sql',
+  kwargs: contrib_data_args,
+)
+
+regress_tests += {
+  'name': 'worker_spi',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'sql': [
+    'worker_spi',
+  ],
+  'regress_args': ['--temp-config', files('dynamic.conf'), '--dbname=contrib_regression'],
+}
diff --git a/src/test/recovery/meson.build b/src/test/recovery/meson.build
new file mode 100644
index 00000000000..5678e1d27ae
--- /dev/null
+++ b/src/test/recovery/meson.build
@@ -0,0 +1,33 @@
+tap_tests += {
+  'name': 'recovery',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'tests' : [
+    't/001_stream_rep.pl',
+    't/002_archiving.pl',
+    't/003_recovery_targets.pl',
+    't/004_timeline_switch.pl',
+    't/005_replay_delay.pl',
+    't/006_logical_decoding.pl',
+    't/007_sync_rep.pl',
+    't/008_fsm_truncation.pl',
+    't/009_twophase.pl',
+    't/010_logical_decoding_timelines.pl',
+    't/011_crash_recovery.pl',
+    't/012_subtransactions.pl',
+    't/013_crash_restart.pl',
+    't/014_unlogged_reinit.pl',
+    't/015_promotion_pages.pl',
+    't/016_min_consistency.pl',
+    't/017_shm.pl',
+    't/018_wal_optimize.pl',
+    't/019_replslot_limit.pl',
+    't/020_archive_status.pl',
+    't/021_row_visibility.pl',
+    't/022_crash_temp_files.pl',
+    't/023_pitr_prepared_xact.pl',
+    't/024_archive_recovery.pl',
+    't/025_stuck_on_old_timeline.pl',
+    't/026_overwrite_contrecord.pl',
+  ]
+}
diff --git a/src/test/regress/meson.build b/src/test/regress/meson.build
new file mode 100644
index 00000000000..1a2f7675e87
--- /dev/null
+++ b/src/test/regress/meson.build
@@ -0,0 +1,57 @@
+# also used by isolationtester
+pg_regress_c = files('pg_regress.c')
+pg_regress_inc = include_directories('.')
+
+regress_sources = pg_regress_c + files(
+  'pg_regress_main.c'
+)
+
+pg_regress_cflags = ['-DHOST_TUPLE="frak"', '-DSHELLPROG="/bin/sh"']
+
+pg_regress = executable('pg_regress',
+  regress_sources,
+  c_args: pg_regress_cflags,
+  dependencies: [frontend_code, libpq],
+  kwargs: default_bin_args + {
+    'install': false
+  },
+)
+
+regress_module = shared_module('regress',
+  ['regress.c'],
+  kwargs: pg_mod_args + {
+    'install': false,
+  },
+)
+
+# Get some extra C modules from contrib/spi but mark them as not to be
+# installed.
+# FIXME: avoid the duplication.
+
+shared_module('autoinc',
+  ['../../../contrib/spi/autoinc.c'],
+  kwargs: pg_mod_args + {
+    'install': false,
+  },
+)
+
+shared_module('refint',
+  ['../../../contrib/spi/refint.c'],
+  kwargs: pg_mod_args + {
+    'c_args': refint_cflags + contrib_mod_args['c_args'],
+    'install': false,
+  },
+)
+
+
+regress_tests += {
+  'name': 'main',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'schedule': files('parallel_schedule'),
+  'regress_args': ['--make-testtablespace-dir'],
+  'test_kwargs': {
+    'priority': 50,
+    'timeout': 1000,
+  },
+}
diff --git a/src/test/ssl/meson.build b/src/test/ssl/meson.build
new file mode 100644
index 00000000000..42e34c9f632
--- /dev/null
+++ b/src/test/ssl/meson.build
@@ -0,0 +1,10 @@
+tap_tests += {
+  'name': 'ssl',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'env' : {'with_ssl': get_option('ssl')},
+  'tests': [
+    't/001_ssltests.pl',
+    't/002_scram.pl'
+  ],
+}
diff --git a/src/test/subscription/meson.build b/src/test/subscription/meson.build
new file mode 100644
index 00000000000..1024952e25b
--- /dev/null
+++ b/src/test/subscription/meson.build
@@ -0,0 +1,34 @@
+tap_tests += {
+  'name': 'subscription',
+  'sd': meson.current_source_dir(),
+  'bd': meson.current_build_dir(),
+  'env' : {'with_icu': icu.found() ? 'yes' : 'no'},
+  'tests': [
+    't/001_rep_changes.pl',
+    't/002_types.pl',
+    't/003_constraints.pl',
+    't/004_sync.pl',
+    't/005_encoding.pl',
+    't/006_rewrite.pl',
+    't/007_ddl.pl',
+    't/008_diff_schema.pl',
+    't/009_matviews.pl',
+    't/010_truncate.pl',
+    't/011_generated.pl',
+    't/012_collation.pl',
+    't/013_partition.pl',
+    't/014_binary.pl',
+    't/015_stream.pl',
+    't/016_stream_subxact.pl',
+    't/017_stream_ddl.pl',
+    't/018_stream_subxact_abort.pl',
+    't/019_stream_subxact_ddl_abort.pl',
+    't/020_messages.pl',
+    't/021_twophase.pl',
+    't/022_twophase_cascade.pl',
+    't/023_twophase_stream.pl',
+    't/024_add_drop_pub.pl',
+    't/025_rep_changes_for_schema.pl',
+    't/100_bugs.pl',
+  ],
+}
diff --git a/src/timezone/meson.build b/src/timezone/meson.build
new file mode 100644
index 00000000000..c3703a5ec7d
--- /dev/null
+++ b/src/timezone/meson.build
@@ -0,0 +1,50 @@
+# files to build into backend
+timezone_sources = files(
+  'localtime.c',
+  'pgtz.c',
+  'strftime.c',
+)
+
+
+timezone_inc = include_directories('.')
+
+timezone_localtime_source = files('localtime.c')
+
+# files needed to build zic utility program
+zic_sources = files(
+   'zic.c'
+)
+
+# we now distribute the timezone data as a single file
+tzdata = files(
+  'data/tzdata.zi'
+)
+
+
+# FIXME: For cross builds, it would need a native built libpgport/pgcommon to
+# build our zic. But for that we'd need to run a good chunk of the configure
+# tests both natively and cross. Unclear if it's worth it.
+if meson.is_cross_build()
+  zic = find_program('zic', native: true, required: false)
+else
+  zic = executable('zic', zic_sources,
+    dependencies: [frontend_code],
+    kwargs: default_bin_args + {'install': false}
+  )
+endif
+
+# FIXME: this used to be sorted - but also isn't actually used
+abbrevs_txt = custom_target('abbrevs.txt',
+  input: tzdata,
+  output: ['abbrevs.txt'],
+  command: [zic, '-P', '-b', 'fat', 'junkdir', '@INPUT@'],
+  capture: true)
+
+tzdata = custom_target('tzdata',
+  input: tzdata,
+  output: ['timezone'],
+  command: [zic, '-d', '@OUTPUT@', '@INPUT@'],
+  install: true,
+  install_dir: get_option('datadir'))
+
+subdir('tznames')
diff --git a/src/timezone/tznames/meson.build b/src/timezone/tznames/meson.build
new file mode 100644
index 00000000000..effd2880ce7
--- /dev/null
+++ b/src/timezone/tznames/meson.build
@@ -0,0 +1,20 @@
+tznames = files(
+  'Africa.txt',
+  'America.txt',
+  'Antarctica.txt',
+  'Asia.txt',
+  'Atlantic.txt',
+  'Australia.txt',
+  'Etc.txt',
+  'Europe.txt',
+  'Indian.txt',
+  'Pacific.txt',
+)
+
+tznames_sets = files(
+  'Default',
+  'Australia',
+  'India')
+
+install_data(tznames, install_dir: get_option('datadir') / 'timezonesets')
+install_data(tznames_sets, install_dir: get_option('datadir') / 'timezonesets')
diff --git a/src/tools/find_meson b/src/tools/find_meson
new file mode 100755
index 00000000000..2d75537374e
--- /dev/null
+++ b/src/tools/find_meson
@@ -0,0 +1,20 @@
+#!/usr/bin/env python3
+
+import os
+import shlex
+import sys
+
+mesonintrospect = os.environ['MESONINTROSPECT']
+components = shlex.split(mesonintrospect)
+
+if len(components) < 2:
+    print(f'expected more, got: {components}')
+    sys.exit(1)
+
+if components[-1] != 'introspect':
+    print('expected introspection at the end')
+    sys.exit(1)
+
+print('\n'.join(components[:-1]), end='')
+
+sys.exit(0)
diff --git a/src/tools/irlink b/src/tools/irlink
new file mode 100644
index 00000000000..efc2c700277
--- /dev/null
+++ b/src/tools/irlink
@@ -0,0 +1,28 @@
+#!/bin/bash
+
+set -e
+
+srcdir="$1"
+builddir="$2"
+llvm_lto="$3"
+outputdir=$(realpath "$5")
+index="$outputdir/postgres.index.bc"
+priv="$6"
+shift 6
+numinput=$#
+
+if [ ! -d "$outputdir" ];then
+    mkdir -p "$outputdir/postgres"
+fi
+
+cd $priv
+
+# fixme, remove old contents"
+cp -r . "$outputdir/postgres"
+
+cd "$outputdir"
+
+filenames=$(for f in "$@";do echo "postgres/${f#$priv/}";done)
+"$llvm_lto" -thinlto -thinlto-action=thinlink -o "$index" $filenames
+
+exit 0
diff --git a/src/tools/msvc/export2def.pl b/src/tools/msvc/export2def.pl
new file mode 100644
index 00000000000..fb88e8b8ab9
--- /dev/null
+++ b/src/tools/msvc/export2def.pl
@@ -0,0 +1,22 @@
+# Copyright (c) 2021, PostgreSQL Global Development Group
+
+use strict;
+use warnings;
+use 5.8.0;
+use List::Util qw(max);
+
+my ($deffile, $txtfile, $libname) = @ARGV;
+
+print STDERR "Generating $deffile...\n";
+open(my $if, '<', $txtfile) || die("Could not open $txtfile\n");
+open(my $of, '>', $deffile) || die("Could not open $deffile for writing\n");
+print $of "LIBRARY $libname\nEXPORTS\n";
+while (<$if>)
+{
+	next if (/^#/);
+	next if (/^\s*$/);
+	my ($f, $o) = split;
+	print $of " $f @ $o\n";
+}
+close($of);
+close($if);
diff --git a/src/tools/msvc/gendef2.pl b/src/tools/msvc/gendef2.pl
new file mode 100644
index 00000000000..3b905d6f5da
--- /dev/null
+++ b/src/tools/msvc/gendef2.pl
@@ -0,0 +1,177 @@
+
+# Copyright (c) 2021, PostgreSQL Global Development Group
+
+use strict;
+use warnings;
+use 5.8.0;
+use List::Util qw(max);
+
+my @def;
+
+#
+# Script that generates a .DEF file for all objects in a directory
+#
+# src/tools/msvc/gendef.pl
+#
+
+# Given a symbol file path, loops over its contents
+# and returns a list of symbols of interest as a dictionary
+# of 'symbolname' -> symtype, where symtype is:
+#
+#     0    a CODE symbol, left undecorated in the .DEF
+#     1    A DATA symbol, i.e. global var export
+#
+sub extract_syms
+{
+	my ($symfile, $def) = @_;
+	open(my $f, '<', $symfile) || die "Could not open $symfile: $!\n";
+	while (<$f>)
+	{
+
+		# Expected symbol lines look like:
+		#
+		# 0   1        2      3            4            5 6
+		# IDX SYMBOL   SECT   SYMTYPE      SYMSTATIC      SYMNAME
+		# ------------------------------------------------------------------------
+		# 02E 00000130 SECTA  notype       External     | _standbyState
+		# 02F 00000009 SECT9  notype       Static       | _LocalRecoveryInProgress
+		# 064 00000020 SECTC  notype ()    Static       | _XLogCheckBuffer
+		# 065 00000000 UNDEF  notype ()    External     | _BufferGetTag
+		#
+		# See http://msdn.microsoft.com/en-us/library/b842y285.aspx
+		#
+		# We're not interested in the symbol index or offset.
+		#
+		# SECT[ION] is only examined to see whether the symbol is defined in a
+		# COFF section of the local object file; if UNDEF, it's a symbol to be
+		# resolved at link time from another object so we can't export it.
+		#
+		# SYMTYPE is always notype for C symbols as there's no typeinfo and no
+		# way to get the symbol type from name (de)mangling. However, we care
+		# if "notype" is suffixed by "()" or not. The presence of () means the
+		# symbol is a function, the absence means it isn't.
+		#
+		# SYMSTATIC indicates whether it's a compilation-unit local "static"
+		# symbol ("Static"), or whether it's available for use from other
+		# compilation units ("External"). We export all symbols that aren't
+		# static as part of the whole program DLL interface to produce UNIX-like
+		# default linkage.
+		#
+		# SYMNAME is, obviously, the symbol name. The leading underscore
+		# indicates that the _cdecl calling convention is used. See
+		# http://www.unixwiz.net/techtips/win32-callconv.html
+		# http://www.codeproject.com/Articles/1388/Calling-Conventions-Demystified
+		#
+		s/notype \(\)/func/g;
+		s/notype/data/g;
+
+		my @pieces = split;
+
+		# Skip file and section headers and other non-symbol entries
+		next unless defined($pieces[0]) and $pieces[0] =~ /^[A-F0-9]{3,}$/;
+
+		# Skip blank symbol names
+		next unless $pieces[6];
+
+		# Skip externs used from another compilation unit
+		next if ($pieces[2] eq "UNDEF");
+
+		# Skip static symbols
+		next unless ($pieces[4] eq "External");
+
+		# Skip some more MSVC-generated crud
+		next if $pieces[6] =~ /^@/;
+		next if $pieces[6] =~ /^\(/;
+
+		# __real and __xmm are out-of-line floating point literals and
+		# (for __xmm) their SIMD equivalents. They shouldn't be part
+		# of the DLL interface.
+		next if $pieces[6] =~ /^__real/;
+		next if $pieces[6] =~ /^__xmm/;
+
+		# __imp entries are imports from other DLLs, eg __imp__malloc .
+		# (We should never have one of these that hasn't already been skipped
+		# by the UNDEF test above, though).
+		next if $pieces[6] =~ /^__imp/;
+
+		# More under-documented internal crud
+		next if $pieces[6] =~ /NULL_THUNK_DATA$/;
+		next if $pieces[6] =~ /^__IMPORT_DESCRIPTOR/;
+		next if $pieces[6] =~ /^__NULL_IMPORT/;
+
+		# Skip string literals
+		next if $pieces[6] =~ /^\?\?_C/;
+
+		# We assume that if a symbol is defined as data, then as a function,
+		# the linker will reject the binary anyway. So it's OK to just pick
+		# whatever came last.
+		$def->{ $pieces[6] } = $pieces[3];
+	}
+	close($f);
+	return;
+}
+
+sub writedef
+{
+	my ($deffile, $platform, $def) = @_;
+	open(my $fh, '>', $deffile) || die "Could not write to $deffile\n";
+	print $fh "EXPORTS\n";
+	foreach my $f (sort keys %{$def})
+	{
+		my $isdata = $def->{$f} eq 'data';
+
+		# Strip the leading underscore for win32, but not x64
+		$f =~ s/^_//
+		  unless ($platform eq "x64");
+
+		# Emit just the name if it's a function symbol, or emit the name
+		# decorated with the DATA option for variables.
+		if ($isdata)
+		{
+			print $fh "  $f DATA\n";
+		}
+		else
+		{
+			print $fh "  $f\n";
+		}
+	}
+	close($fh);
+	return;
+}
+
+
+sub usage
+{
+	die(    "Usage: gendef.pl platform outputfile tempdir sourcelib\n"
+		  . "    modulepath: path to dir with obj files, no trailing slash"
+		  . "    platform: Win32 | x64");
+}
+
+usage()
+  unless scalar(@ARGV) >= 4;
+
+my $platform  = $ARGV[0];
+shift;
+my $deffile  = $ARGV[0];
+shift;
+my $tempdir  = $ARGV[0];
+shift;
+
+print STDERR "Generating $deffile in tmp dir $tempdir from ".join(' ', @ARGV)."\n";
+
+my %def = ();
+
+my $symfile = "$tempdir/all.sym";
+my $tmpfile = "$tempdir/tmp.sym";
+mkdir($tempdir);
+print STDERR "dumpbin /symbols /out:$tmpfile ".join(' ', @ARGV)."\n";
+system("dumpbin /symbols /out:$tmpfile ".join(' ', @ARGV))
+  && die "Could not call dumpbin";
+rename($tmpfile, $symfile);
+print "generated symfile to $symfile (via $tmpfile)\n";
+extract_syms($symfile, \%def);
+print "\n";
+
+writedef($deffile, $platform, \%def);
+
+print "Generated " . scalar(keys(%def)) . " symbols\n";
diff --git a/src/tools/relativize_shared_library_references b/src/tools/relativize_shared_library_references
new file mode 100755
index 00000000000..db6431639f1
--- /dev/null
+++ b/src/tools/relativize_shared_library_references
@@ -0,0 +1,84 @@
+#!/usr/bin/env python3
+# -*-python-*-
+
+# This script updates a macos postgres installation to reference all internal
+# shared libraries using rpaths, leaving absolute install_names in the
+# libraries themselves intact.
+
+import os
+import shlex
+import sys
+import json
+import subprocess
+import shutil
+
+
+def installed_path(destdir, path):
+    if destdir is not None:
+        return f'{destdir}{path}'
+    else:
+        return path
+
+
+def collect_information():
+    shared_libraries = []
+    executables = []
+    shared_modules = []
+
+    targets = json.load(open(os.path.join(build_root, 'meson-info', 'intro-targets.json')))
+    installed = json.load(open(os.path.join(build_root, 'meson-info', 'intro-installed.json')))
+
+    for target in targets:
+        if not target['installed']:
+            continue
+
+        filenames = target['filename']
+
+        if target['type'] == 'shared library':
+            assert(len(filenames) == 1)
+            filename = filenames[0]
+
+            shared_libraries.append(installed[filename])
+
+        if target['type'] == 'executable':
+            assert(len(filenames) == 1)
+            filename = filenames[0]
+            executables.append(installed[filename])
+
+        if target['type'] == 'shared module':
+            assert(len(filenames) == 1)
+            filename = filenames[0]
+            shared_modules.append(installed[filename])
+
+    return shared_libraries, executables, shared_modules
+
+
+def patch_references(destdir, shared_libraries, executables, shared_modules):
+    install_name_tool = [shutil.which('install_name_tool')]
+
+    for lib in shared_libraries:
+        libname = os.path.basename(lib)
+        libpath = installed_path(destdir, lib)
+        newref = f'@rpath/{libname}'
+
+        for patch in shared_modules + executables:
+            patchpath = installed_path(destdir, patch)
+
+            #print(f'in {patchpath} replace reference to {libpath} with {newref}')
+            if not os.path.exists(patchpath):
+                print(f"path {patchpath} doesn't exist", file=sys.stderr)
+                sys.exit(1)
+
+            subprocess.check_call(install_name_tool + ['-change', lib, newref, patchpath])
+
+
+if __name__ == '__main__':
+    build_root = os.environ['MESON_BUILD_ROOT']
+    destdir = os.environ.get('DESTDIR', None)
+
+    print(f'making references to shared libraries relative, destdir is {destdir}', file=sys.stderr)
+
+    shared_libraries, executables, shared_modules = collect_information()
+    patch_references(destdir, shared_libraries, executables, shared_modules)
+
+    sys.exit(0)
diff --git a/src/tools/relpath.py b/src/tools/relpath.py
new file mode 100755
index 00000000000..87bcb496ab5
--- /dev/null
+++ b/src/tools/relpath.py
@@ -0,0 +1,6 @@
+#!/usr/bin/env python3
+
+import os
+import sys
+
+print(os.path.relpath(sys.argv[2], start=sys.argv[1]))
diff --git a/src/tools/testwrap b/src/tools/testwrap
new file mode 100755
index 00000000000..aeb2019b099
--- /dev/null
+++ b/src/tools/testwrap
@@ -0,0 +1,22 @@
+#!/bin/sh
+#
+# FIXME: I should probably be a perl or python script
+#
+
+# FIXME: argument parsing
+
+basedir=$1
+builddir=$2
+testgroup=$3
+testname=$(basename -s .pl $4)
+shift 4
+
+testdir="$basedir/testrun/$testgroup/$testname"
+echo "# executing test in $testdir group $testgroup test $testname, builddir $builddir"
+rm -rf "$testdir/"
+mkdir -p "$testdir"
+
+export TESTOUTDIR="$testdir"
+export TESTDIR="$builddir"
+
+exec "$@"
-- 
2.23.0.385.gbc12974a89

  [text/x-diff] v5-0016-meson-ci-Build-both-with-meson-and-as-before.patch (17.9K, ../../20211031232448.wsma7sggfwyxppjc@alap3.anarazel.de/17-v5-0016-meson-ci-Build-both-with-meson-and-as-before.patch)
  download | inline diff:
From 0585858de3602b88b2c8f11924d3439f457b5ab2 Mon Sep 17 00:00:00 2001
From: Andres Freund <andres@anarazel.de>
Date: Fri, 8 Oct 2021 17:29:10 -0700
Subject: [PATCH v5 16/16] meson: ci: Build both with meson and as before.

---
 .cirrus.yml | 466 ++++++++++++++++++++++++++++++++++------------------
 1 file changed, 309 insertions(+), 157 deletions(-)

diff --git a/.cirrus.yml b/.cirrus.yml
index 2bb6f4a14d7..a7f955b3c63 100644
--- a/.cirrus.yml
+++ b/.cirrus.yml
@@ -13,14 +13,13 @@ env:
 
 
 task:
-  name: FreeBSD
   only_if: $CIRRUS_CHANGE_MESSAGE !=~ '.*\nci-os-only:.*' || $CIRRUS_CHANGE_MESSAGE =~ '.*\nci-os-only:[^\n]*freebsd.*'
   compute_engine_instance:
     image_project: pg-vm-images-aio
     image: family/pg-aio-freebsd-13-0
     platform: freebsd
-    cpu: 2
-    memory: 2G
+    cpu: 4
+    memory: 4G
     disk: 50
   env:
     CCACHE_DIR: "/tmp/ccache_dir"
@@ -39,33 +38,52 @@ task:
     - mkdir -p /tmp/ccache_dir
     - chown -R postgres:postgres /tmp/ccache_dir
 
-  configure_script: |
-    su postgres -c './configure \
-      --enable-cassert --enable-debug --enable-tap-tests \
-      --enable-nls \
-      \
-      --with-icu \
-      --with-ldap \
-      --with-libxml \
-      --with-libxslt \
-      \
-      --with-lz4 \
-      --with-pam \
-      --with-perl \
-      --with-python \
-      --with-ssl=openssl \
-      --with-tcl --with-tclconfig=/usr/local/lib/tcl8.6/ \
-      --with-uuid=bsd \
-      \
-      --with-includes=/usr/local/include --with-libs=/usr/local/lib \
-      CC="ccache cc"'
-  build_script:
-    - su postgres -c 'gmake -s -j3 && gmake -s -j3 -C contrib'
-  upload_caches:
-    - ccache
+  matrix:
+    - name: FreeBSD autoconf
+
+      configure_script: |
+        su postgres -c './configure \
+          --enable-cassert --enable-debug --enable-tap-tests \
+          --enable-nls \
+          \
+          --with-icu \
+          --with-ldap \
+          --with-libxml \
+          --with-libxslt \
+          \
+          --with-lz4 \
+          --with-pam \
+          --with-perl \
+          --with-python \
+          --with-ssl=openssl \
+          --with-tcl --with-tclconfig=/usr/local/lib/tcl8.6/ \
+          --with-uuid=bsd \
+          \
+          --with-includes=/usr/local/include --with-libs=/usr/local/lib \
+          CC="ccache cc"'
+      build_script:
+        - su postgres -c 'gmake -s -j4 && gmake -s -j4 -C contrib'
+      upload_caches:
+        - ccache
+
+      tests_script:
+        - su postgres -c 'time gmake -s -j4 ${CHECK} ${CHECKFLAGS}'
+
+    - name: FreeBSD meson
+
+      configure_script:
+        - su postgres -c 'meson setup --buildtype debug -Dcassert=true -Dssl=openssl -Duuid=bsd build'
+      build_script:
+        - su postgres -c 'ninja -C build'
+      upload_caches:
+        - ccache
+      run_tests_script:
+        - su postgres -c 'meson test --no-rebuild -C build'
 
-  tests_script:
-    - su postgres -c 'time gmake -s -j2 ${CHECK} ${CHECKFLAGS}'
+  always:
+    meson_log_artifacts:
+      path: "build/meson-logs/*.txt"
+      type: text/plain
 
   on_failure:
     cores_script: |
@@ -83,14 +101,16 @@ task:
     tap_artifacts:
       path: "**/regress_log_*"
       type: text/plain
+    meson_test_artifacts:
+      path: "build/meson-logs/testlog.junit.xml"
+      type: text/xml
+      format: junit
 
 
 task:
-  name: Linux
   only_if: $CIRRUS_CHANGE_MESSAGE !=~ '.*\nci-os-only:.*' || $CIRRUS_CHANGE_MESSAGE =~ '.*\nci-os-only:[^\n]*linux.*'
   compute_engine_instance:
     image_project: pg-vm-images-aio
-    image: family/pg-aio-bullseye
     platform: linux
     cpu: 4
     memory: 2G
@@ -120,37 +140,78 @@ task:
     - su postgres -c 'ulimit -l -S'
     - echo '/tmp/%e-%s-%p.core' > /proc/sys/kernel/core_pattern
 
-  configure_script: |
-    su postgres -c './configure \
-      --enable-cassert --enable-debug --enable-tap-tests \
-      --enable-nls \
-      \
-      --with-gssapi \
-      --with-icu \
-      --with-ldap \
-      --with-libxml \
-      --with-libxslt \
-      --with-llvm \
-      --with-lz4 \
-      --with-pam \
-      --with-perl \
-      --with-python \
-      --with-ssl=openssl \
-      --with-systemd \
-      --with-tcl --with-tclconfig=/usr/lib/tcl8.6/ \
-      --with-uuid=e2fs \
-      \
-      CC="ccache gcc" CXX="ccache g++" CLANG="ccache clang" CFLAGS="-O0 -ggdb"'
-  build_script:
-    - su postgres -c 'make -s -j4 && make -s -j4 -C contrib'
-  upload_caches:
-    - ccache
+  matrix:
+    - name: Linux Autoconf
+
+      compute_engine_instance:
+        image: family/pg-aio-bullseye
+
+      configure_script: |
+        su postgres -c './configure \
+          --enable-cassert --enable-debug --enable-tap-tests \
+          --enable-nls \
+          \
+          --with-gssapi \
+          --with-icu \
+          --with-ldap \
+          --with-libxml \
+          --with-libxslt \
+          --with-llvm \
+          --with-lz4 \
+          --with-pam \
+          --with-perl \
+          --with-python \
+          --with-ssl=openssl \
+          --with-systemd \
+          --with-tcl --with-tclconfig=/usr/lib/tcl8.6/ \
+          --with-uuid=e2fs \
+          \
+          CC="ccache gcc" CXX="ccache g++" CLANG="ccache clang" CFLAGS="-O0 -ggdb"'
+      build_script:
+        - su postgres -c 'make -s -j4 && make -s -j4 -C contrib'
+      upload_caches:
+        - ccache
+
+      tests_script: |
+        su postgres -c '\
+          ulimit -c unlimited; \
+          make -s ${CHECK} ${CHECKFLAGS} -j8 \
+          '
+
+    - name: Linux Meson
+
+      compute_engine_instance:
+        image: family/pg-aio-bullseye
+
+      configure_script:
+        - su postgres -c 'meson setup --buildtype debug -Dcassert=true -Dssl=openssl -Duuid=e2fs build'
+      build_script:
+        - su postgres -c 'ninja -C build'
+      upload_caches:
+        - ccache
+
+      tests_script:
+        - su postgres -c 'meson test --no-rebuild -C build'
+
+    - name: Linux Meson Sid
+
+      compute_engine_instance:
+        image: family/pg-aio-sid
+
+      configure_script:
+        - su postgres -c 'meson setup --buildtype debug -Dcassert=true -Dssl=openssl -Duuid=ossp build'
+      build_script:
+        - su postgres -c 'ninja -C build'
+      upload_caches:
+        - ccache
+
+      tests_script:
+        - su postgres -c 'meson test --no-rebuild -C build'
 
-  tests_script: |
-    su postgres -c '\
-      ulimit -c unlimited; \
-      make -s ${CHECK} ${CHECKFLAGS} -j8 \
-      '
+  always:
+    meson_log_artifacts:
+      path: "build/meson-logs/*.txt"
+      type: text/plain
 
   on_failure:
     cores_script: |
@@ -168,10 +229,13 @@ task:
     tap_artifacts:
       path: "**/regress_log_*"
       type: text/plain
+    meson_test_artifacts:
+      path: "build/meson-logs/testlog.junit.xml"
+      type: text/xml
+      format: junit
 
 
 task:
-  name: macOS
   only_if: $CIRRUS_CHANGE_MESSAGE !=~ '.*\nci-os-only:.*' || $CIRRUS_CHANGE_MESSAGE =~ '.*\nci-os-only:[^\n]*(macos|darwin|osx).*'
   osx_instance:
     image: big-sur-base
@@ -201,56 +265,87 @@ task:
     - sudo chmod 777 /cores
   homebrew_install_script:
     - brew install make coreutils ccache icu4c lz4 tcl-tk openldap
+    - brew install meson ninja python@3.9
   upload_caches:
     - homebrew
 
-  configure_script: |
-    LIBS="/usr/local/lib:$LIBS"
-    INCLUDES="/usr/local/include:$INCLUDES"
-
-    INCLUDES="/usr/local/opt/openssl/include:$INCLUDES"
-    LIBS="/usr/local/opt/openssl/lib:$LIBS"
-
-    PKG_CONFIG_PATH="/usr/local/opt/icu4c/lib/pkgconfig:$PKG_CONFIG_PATH"
-    INCLUDES="/usr/local/opt/icu4c/include:$INCLUDES"
-    LIBS="/usr/local/opt/icu4c/lib:$LIBS"
-
-    LIBS="/usr/local/opt/openldap/lib:$LIBS"
-    INCLUDES="/usr/local/opt/openldap/include:$INCLUDES"
-
-    export PKG_CONFIG_PATH
-
-    ./configure \
-      --prefix=$HOME/install \
-      --with-includes="$INCLUDES" \
-      --with-libs="$LIBS" \
-      \
-      --enable-cassert --enable-debug --enable-tap-tests \
-      --enable-nls \
-      \
-      --with-icu \
-      --with-ldap \
-      --with-libxml \
-      --with-libxslt \
-      \
-      --with-lz4 \
-      --with-perl \
-      --with-python \
-      --with-ssl=openssl \
-      --with-tcl --with-tclconfig=/usr/local/opt/tcl-tk/lib/ \
-      --with-uuid=e2fs \
-      \
-      CC="ccache gcc" CFLAGS="-O0 -ggdb" \
-      PYTHON=python3
-  build_script:
-    - gmake -s -j12 && gmake -s -j12 -C contrib
-  upload_caches:
-    - ccache
+  matrix:
+    - name: macOS autoconf
+
+      configure_script: |
+        LIBS="/usr/local/lib:$LIBS"
+        INCLUDES="/usr/local/include:$INCLUDES"
+
+        PKG_CONFIG_PATH="/usr/local/opt/openssl/lib/pkgconfig:$PKG_CONFIG_PATH"
+        INCLUDES="/usr/local/opt/openssl/include:$INCLUDES"
+        LIBS="/usr/local/opt/openssl/lib:$LIBS"
+
+        PKG_CONFIG_PATH="/usr/local/opt/icu4c/lib/pkgconfig:$PKG_CONFIG_PATH"
+        INCLUDES="/usr/local/opt/icu4c/include:$INCLUDES"
+        LIBS="/usr/local/opt/icu4c/lib:$LIBS"
+
+        PKG_CONFIG_PATH="/usr/local/opt/openldap/lib/pkgconfig:$PKG_CONFIG_PATH"
+        LIBS="/usr/local/opt/openldap/lib:$LIBS"
+        INCLUDES="/usr/local/opt/openldap/include:$INCLUDES"
+
+        export PKG_CONFIG_PATH
+
+        ./configure \
+          --prefix=$HOME/install \
+          --with-includes="$INCLUDES" \
+          --with-libs="$LIBS" \
+          \
+          --enable-cassert --enable-debug --enable-tap-tests \
+          --enable-nls \
+          \
+          --with-icu \
+          --with-ldap \
+          --with-libxml \
+          --with-libxslt \
+          \
+          --with-lz4 \
+          --with-perl \
+          --with-python \
+          --with-ssl=openssl \
+          --with-tcl --with-tclconfig=/usr/local/opt/tcl-tk/lib/ \
+          --with-uuid=e2fs \
+          \
+          CC="ccache gcc" CFLAGS="-O0 -ggdb" \
+          PYTHON=python3
+      build_script:
+        - gmake -s -j12 && gmake -s -j12 -C contrib
+      upload_caches:
+        - ccache
+
+      tests_script:
+        - ulimit -c unlimited
+        - ulimit -n 1024
+        - gmake -s -j12 ${CHECK} ${CHECKFLAGS}
+
+    - name: macOS meson
+
+      configure_script: |
+        PKG_CONFIG_PATH="/usr/local/opt/openssl/lib/pkgconfig:$PKG_CONFIG_PATH"
+        PKG_CONFIG_PATH="/usr/local/opt/icu4c/lib/pkgconfig:$PKG_CONFIG_PATH"
+        PKG_CONFIG_PATH="/usr/local/opt/openldap/lib/pkgconfig:$PKG_CONFIG_PATH"
+
+        export PKG_CONFIG_PATH
+
+        meson setup --buildtype debug -Dcassert=true -Dssl=openssl -Duuid=e2fs build
+      build_script:
+        - ninja -C build
+      upload_caches:
+        - ccache
+
+      tests_script:
+        - ulimit -c unlimited
+        - ulimit -n 1024
+        - meson test --no-rebuild -C build
 
-  tests_script:
-    - ulimit -c unlimited
-    - ulimit -n 1024
-    - gmake -s -j12 ${CHECK} ${CHECKFLAGS}
+  always:
+    meson_log_artifacts:
+      path: "build/meson-logs/*.txt"
+      type: text/plain
 
   on_failure:
     cores_script: |
@@ -266,10 +361,13 @@ task:
     tap_artifacts:
       path: "**/regress_log_*"
       type: text/plain
+    meson_test_artifacts:
+      path: "build/meson-logs/testlog.junit.xml"
+      type: text/xml
+      format: junit
 
 
 task:
-  name: Windows
   only_if: $CIRRUS_CHANGE_MESSAGE !=~ '.*\nci-os-only:.*' || $CIRRUS_CHANGE_MESSAGE =~ '.*\nci-os-only:[^\n]*windows.*'
   windows_container:
     dockerfile: ci/docker/windows_vs_2019
@@ -282,6 +380,8 @@ task:
     TEMP_CONFIG: ${CIRRUS_WORKING_DIR}/ci/pg_ci_base.conf
     # Avoid re-installing over and over
     NO_TEMP_INSTALL: 1
+    # Try to hide git's tar
+    PATH: c:\windows\system32;${PATH}
 
   sysinfo_script:
     - chcp
@@ -290,55 +390,103 @@ task:
     - ps: Get-Item -Path 'HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\AeDebug'
     - set
 
-  configure_script:
-    - copy ci\windows_build_config.pl src\tools\msvc\config.pl
-    - vcvarsall x64
-    - perl src/tools/msvc/mkvcbuild.pl
-  build_script:
-    - vcvarsall x64
-    # Disable file tracker, we're never going to rebuild...
-    - msbuild -m /p:TrackFileAccess=false 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
-
-  check_test_script:
-    - perl src/tools/msvc/vcregress.pl check parallel
-  startcreate_test_script:
-    - tmp_install\bin\pg_ctl.exe initdb -D tmp_check\db -l tmp_check\initdb.log
-    - 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
-  plcheck_test_script:
-    - perl src/tools/msvc/vcregress.pl plcheck
-  isolationcheck_test_script:
-    - perl src/tools/msvc/vcregress.pl isolationcheck
-  modulescheck_test_script:
-    - perl src/tools/msvc/vcregress.pl modulescheck
-  contribcheck_test_script:
-    - perl src/tools/msvc/vcregress.pl contribcheck
-  stop_test_script:
-    - tmp_install\bin\pg_ctl.exe stop -D tmp_check\db -l tmp_check\postmaster.log
-  ssl_test_script:
-    - set with_ssl=openssl
-    - perl src/tools/msvc/vcregress.pl taptest .\src\test\ssl\
-  subscriptioncheck_test_script:
-    - perl src/tools/msvc/vcregress.pl taptest .\src\test\subscription\
-  authentication_test_script:
-    - perl src/tools/msvc/vcregress.pl taptest .\src\test\authentication\
-  recoverycheck_test_script:
-    - perl src/tools/msvc/vcregress.pl recoverycheck
-  bincheck_test_script:
-    - perl src/tools/msvc/vcregress.pl bincheck
-  upgradecheck_test_script:
-    - perl src/tools/msvc/vcregress.pl upgradecheck
-  ecpgcheck_test_script:
-    # tries to build additional stuff
-    - vcvarsall x64
-    # References ecpg_regression.proj in the current dir
-    - cd src\tools\msvc
-    - perl vcregress.pl ecpgcheck
+  matrix:
+    - name: Windows homegrown
+
+      configure_script:
+        - copy ci\windows_build_config.pl src\tools\msvc\config.pl
+        - vcvarsall x64
+        - perl src/tools/msvc/mkvcbuild.pl
+      build_script:
+        - vcvarsall x64
+        # Disable file tracker, we're never going to rebuild...
+        - msbuild -m /p:TrackFileAccess=false 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
+
+      check_test_script:
+        - perl src/tools/msvc/vcregress.pl check parallel
+      startcreate_test_script:
+        - tmp_install\bin\pg_ctl.exe initdb -D tmp_check\db -l tmp_check\initdb.log
+        - 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
+      plcheck_test_script:
+        - perl src/tools/msvc/vcregress.pl plcheck
+      isolationcheck_test_script:
+        - perl src/tools/msvc/vcregress.pl isolationcheck
+      modulescheck_test_script:
+        - perl src/tools/msvc/vcregress.pl modulescheck
+      contribcheck_test_script:
+        - perl src/tools/msvc/vcregress.pl contribcheck
+      stop_test_script:
+        - tmp_install\bin\pg_ctl.exe stop -D tmp_check\db -l tmp_check\postmaster.log
+      ssl_test_script:
+        - set with_ssl=openssl
+        - perl src/tools/msvc/vcregress.pl taptest .\src\test\ssl\
+      subscriptioncheck_test_script:
+        - perl src/tools/msvc/vcregress.pl taptest .\src\test\subscription\
+      authentication_test_script:
+        - perl src/tools/msvc/vcregress.pl taptest .\src\test\authentication\
+      recoverycheck_test_script:
+        - perl src/tools/msvc/vcregress.pl recoverycheck
+      bincheck_test_script:
+        - perl src/tools/msvc/vcregress.pl bincheck
+      upgradecheck_test_script:
+        - perl src/tools/msvc/vcregress.pl upgradecheck
+      ecpgcheck_test_script:
+        # tries to build additional stuff
+        - vcvarsall x64
+        # References ecpg_regression.proj in the current dir
+        - cd src\tools\msvc
+        - perl vcregress.pl ecpgcheck
+
+    - name: Windows Meson+vs+Ninja
+
+      meson_script:
+        - pip install meson
+        - pip install ninja
+      configure_script:
+        - vcvarsall x64
+        - mkdir subprojects
+        - meson wrap install lz4
+        - meson wrap install zlib
+        - meson setup --buildtype debug --backend ninja  -Dcassert=true -Db_pch=true -Dssl=openssl -Dlz4=enabled -Dzlib=enabled -Dextra_lib_dirs=c:\openssl\1.1.1l\lib -Dextra_include_dirs=c:\openssl\1.1.1l\include build
+      build_script:
+        - vcvarsall x64
+        - ninja -C build
+
+      check_script:
+        - vcvarsall x64
+        - meson test --no-rebuild -C build
+
+    - name: Windows Meson+vs+msbuild
+
+      # Need a development version of meson for now
+      meson_dev_script:
+        - git clone https://github.com/mesonbuild/meson.git
+
+      configure_script:
+        - vcvarsall x64
+        - mkdir subprojects
+        - .\meson\meson.py wrap install lz4
+        - .\meson\meson.py wrap install zlib
+        - .\meson\meson.py setup --buildtype debug --backend vs -Dcassert=true -Db_pch=true -Dssl=openssl -Dlz4=enabled -Dzlib=enabled -Dextra_lib_dirs=c:\openssl\1.1.1l\lib -Dextra_include_dirs=c:\openssl\1.1.1l\include build
+
+      build_script:
+        - vcvarsall x64
+        - msbuild -m /p:UseMultiToolTask=true build\postgresql.sln
+
+      check_script:
+        - vcvarsall x64
+        - .\meson\meson.py test --no-rebuild -C build
 
   always:
+    meson_log_artifacts:
+      path: "build/meson-logs/*.txt"
+      type: text/plain
+    cat_dumps_script:
+
     cores_script:
       - cat crashlog.txt || true
     dump_artifacts:
@@ -355,12 +503,16 @@ task:
     tap_artifacts:
       path: "**/regress_log_*"
       type: text/plain
+    meson_test_artifacts:
+      path: "build/meson-logs/testlog.junit.xml"
+      type: text/xml
+      format: junit
 
 
 task:
   name: CompilerWarnings
   depends_on:
-    - Linux
+    - Linux Autoconf
   # task that did not run count as a success, so we need to recheck Linux' condition here :/
   only_if: $CIRRUS_CHANGE_MESSAGE !=~ '.*\nci-os-only:.*' || $CIRRUS_CHANGE_MESSAGE =~ '.*\nci-os-only:[^\n]*linux.*'
   container:
-- 
2.23.0.385.gbc12974a89

^ permalink  raw  reply  [nested|flat] 7+ messages in thread

* Re: [RFC] building postgres with meson -v
@ 2021-11-04 18:17  Peter Eisentraut <peter.eisentraut@enterprisedb.com>
  parent: Andres Freund <andres@anarazel.de>
  2 siblings, 1 reply; 7+ messages in thread

From: Peter Eisentraut @ 2021-11-04 18:17 UTC (permalink / raw)
  To: Andres Freund <andres@anarazel.de>; pgsql-hackers; +Cc: Thomas Munro <thomas.munro@gmail.com>; Tom Lane <tgl@sss.pgh.pa.us>; Peter Eisentraut <peter_e@gmx.net>; John Naylor <john.naylor@enterprisedb.com>; Andrew Dunstan <andrew@dunslane.net>; Josef Šimánek <josef.simanek@gmail.com>


On 01.11.21 00:24, Andres Freund wrote:
> - remaining hardcoded configure tests (e.g. ACCEPT_TYPE_ARG*)

I think we can get rid of that one.

That test originally catered to some strange edge cases where the third 
argument was size_t that was not the same size as int.  That is long 
gone, if it ever really existed.  All systems currently of interest use 
either socklen_t or int, and socklen_t is always int.  (A few build farm 
animals report size_t, but they are all 32-bit.)

I think we can change the code to use socklen_t and add a simple check 
to typedef socklen_t as int if not available.  See attached patch.
From 6229ba9973134dfb184eb21bc62822d83ba554d8 Mon Sep 17 00:00:00 2001
From: Peter Eisentraut <peter@eisentraut.org>
Date: Thu, 4 Nov 2021 13:50:25 +0100
Subject: [PATCH] Remove check for accept() argument types

---
 aclocal.m4                        |  1 -
 config/ac_func_accept_argtypes.m4 | 78 -----------------------------
 configure                         | 82 +++++--------------------------
 configure.ac                      |  2 +-
 src/backend/libpq/auth.c          |  2 +-
 src/backend/libpq/pqcomm.c        |  8 +--
 src/backend/postmaster/pgstat.c   |  4 +-
 src/include/c.h                   |  4 ++
 src/include/libpq/pqcomm.h        |  2 +-
 src/include/pg_config.h.in        | 15 ++----
 src/interfaces/libpq/fe-connect.c |  2 +-
 src/port/getpeereid.c             |  4 +-
 src/tools/msvc/Solution.pm        |  5 +-
 13 files changed, 31 insertions(+), 178 deletions(-)
 delete mode 100644 config/ac_func_accept_argtypes.m4

diff --git a/aclocal.m4 b/aclocal.m4
index 5e22482cd5..58ade65046 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -1,5 +1,4 @@
 dnl aclocal.m4
-m4_include([config/ac_func_accept_argtypes.m4])
 m4_include([config/ax_prog_perl_modules.m4])
 m4_include([config/ax_pthread.m4])
 m4_include([config/c-compiler.m4])
diff --git a/config/ac_func_accept_argtypes.m4 b/config/ac_func_accept_argtypes.m4
deleted file mode 100644
index 178ef67818..0000000000
--- a/config/ac_func_accept_argtypes.m4
+++ /dev/null
@@ -1,78 +0,0 @@
-# config/ac_func_accept_argtypes.m4
-# This comes from the official Autoconf macro archive at
-# <http://research.cys.de/autoconf-archive/;
-
-
-dnl @synopsis AC_FUNC_ACCEPT_ARGTYPES
-dnl
-dnl Checks the data types of the three arguments to accept(). Results are
-dnl placed into the symbols ACCEPT_TYPE_RETURN and ACCEPT_TYPE_ARG[123],
-dnl consistent with the following example:
-dnl
-dnl       #define ACCEPT_TYPE_RETURN int
-dnl       #define ACCEPT_TYPE_ARG1 int
-dnl       #define ACCEPT_TYPE_ARG2 struct sockaddr *
-dnl       #define ACCEPT_TYPE_ARG3 socklen_t
-dnl
-dnl NOTE: This is just a modified version of the AC_FUNC_SELECT_ARGTYPES
-dnl macro. Credit for that one goes to David MacKenzie et. al.
-dnl
-dnl @version $Id: ac_func_accept_argtypes.m4,v 1.1 1999/12/03 11:29:29 simons Exp $
-dnl @author Daniel Richard G. <skunk@mit.edu>
-dnl
-
-# PostgreSQL local changes: In the original version ACCEPT_TYPE_ARG3
-# is a pointer type. That's kind of useless because then you can't
-# use the macro to define a corresponding variable. We also make the
-# reasonable(?) assumption that you can use arg3 for getsocktype etc.
-# as well (i.e., anywhere POSIX.2 has socklen_t).
-#
-# arg2 can also be `const' (e.g., RH 4.2). Change the order of tests
-# for arg3 so that `int' is first, in case there is no prototype at all.
-#
-# Solaris 7 and 8 have arg3 as 'void *' (disguised as 'Psocklen_t'
-# which is *not* 'socklen_t *').  If we detect that, then we assume
-# 'int' as the result, because that ought to work best.
-#
-# On Win32, accept() returns 'unsigned int PASCAL'
-# Win64 uses SOCKET for return and arg1
-
-AC_DEFUN([AC_FUNC_ACCEPT_ARGTYPES],
-[AC_MSG_CHECKING([types of arguments for accept()])
- AC_CACHE_VAL(ac_cv_func_accept_return,dnl
- [AC_CACHE_VAL(ac_cv_func_accept_arg1,dnl
-  [AC_CACHE_VAL(ac_cv_func_accept_arg2,dnl
-   [AC_CACHE_VAL(ac_cv_func_accept_arg3,dnl
-    [for ac_cv_func_accept_return in 'int' 'SOCKET WSAAPI' 'unsigned int PASCAL'; do
-      for ac_cv_func_accept_arg1 in 'int' 'SOCKET' 'unsigned int'; do
-       for ac_cv_func_accept_arg2 in 'struct sockaddr *' 'const struct sockaddr *' 'void *'; do
-        for ac_cv_func_accept_arg3 in 'int' 'size_t' 'socklen_t' 'unsigned int' 'void'; do
-         AC_COMPILE_IFELSE([AC_LANG_SOURCE(
-[#include <sys/types.h>
-#include <sys/socket.h>
-extern $ac_cv_func_accept_return accept ($ac_cv_func_accept_arg1, $ac_cv_func_accept_arg2, $ac_cv_func_accept_arg3 *);])],
-         [ac_not_found=no; break 4], [ac_not_found=yes])
-       done
-      done
-     done
-    done
-    if test "$ac_not_found" = yes; then
-      AC_MSG_ERROR([could not determine argument types])
-    fi
-    if test "$ac_cv_func_accept_arg3" = "void"; then
-      ac_cv_func_accept_arg3=int
-    fi
-    ])dnl AC_CACHE_VAL
-   ])dnl AC_CACHE_VAL
-  ])dnl AC_CACHE_VAL
- ])dnl AC_CACHE_VAL
- AC_MSG_RESULT([$ac_cv_func_accept_return, $ac_cv_func_accept_arg1, $ac_cv_func_accept_arg2, $ac_cv_func_accept_arg3 *])
- AC_DEFINE_UNQUOTED(ACCEPT_TYPE_RETURN, $ac_cv_func_accept_return,
-                    [Define to the return type of 'accept'])
- AC_DEFINE_UNQUOTED(ACCEPT_TYPE_ARG1, $ac_cv_func_accept_arg1,
-                    [Define to the type of arg 1 of 'accept'])
- AC_DEFINE_UNQUOTED(ACCEPT_TYPE_ARG2, $ac_cv_func_accept_arg2,
-                    [Define to the type of arg 2 of 'accept'])
- AC_DEFINE_UNQUOTED(ACCEPT_TYPE_ARG3, $ac_cv_func_accept_arg3,
-                    [Define to the type of arg 3 of 'accept'])
-])
diff --git a/configure b/configure
index 4ffefe4655..e60e78efdf 100755
--- a/configure
+++ b/configure
@@ -14615,6 +14615,17 @@ cat >>confdefs.h <<_ACEOF
 _ACEOF
 
 
+fi
+
+ac_fn_c_check_type "$LINENO" "socklen_t" "ac_cv_type_socklen_t" "#include <sys/socket.h>
+"
+if test "x$ac_cv_type_socklen_t" = xyes; then :
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_SOCKLEN_T 1
+_ACEOF
+
+
 fi
 
 ac_fn_c_check_type "$LINENO" "struct sockaddr_un" "ac_cv_type_struct_sockaddr_un" "#include <sys/types.h>
@@ -15327,77 +15338,6 @@ if test x"$pgac_cv_var_int_timezone" = xyes ; then
 $as_echo "#define HAVE_INT_TIMEZONE 1" >>confdefs.h
 
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking types of arguments for accept()" >&5
-$as_echo_n "checking types of arguments for accept()... " >&6; }
- if ${ac_cv_func_accept_return+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-   if ${ac_cv_func_accept_arg1+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-    if ${ac_cv_func_accept_arg2+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-     if ${ac_cv_func_accept_arg3+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-      for ac_cv_func_accept_return in 'int' 'SOCKET WSAAPI' 'unsigned int PASCAL'; do
-      for ac_cv_func_accept_arg1 in 'int' 'SOCKET' 'unsigned int'; do
-       for ac_cv_func_accept_arg2 in 'struct sockaddr *' 'const struct sockaddr *' 'void *'; do
-        for ac_cv_func_accept_arg3 in 'int' 'size_t' 'socklen_t' 'unsigned int' 'void'; do
-         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <sys/types.h>
-#include <sys/socket.h>
-extern $ac_cv_func_accept_return accept ($ac_cv_func_accept_arg1, $ac_cv_func_accept_arg2, $ac_cv_func_accept_arg3 *);
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_not_found=no; break 4
-else
-  ac_not_found=yes
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-       done
-      done
-     done
-    done
-    if test "$ac_not_found" = yes; then
-      as_fn_error $? "could not determine argument types" "$LINENO" 5
-    fi
-    if test "$ac_cv_func_accept_arg3" = "void"; then
-      ac_cv_func_accept_arg3=int
-    fi
-
-fi
-
-fi
-
-fi
-
-fi
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_accept_return, $ac_cv_func_accept_arg1, $ac_cv_func_accept_arg2, $ac_cv_func_accept_arg3 *" >&5
-$as_echo "$ac_cv_func_accept_return, $ac_cv_func_accept_arg1, $ac_cv_func_accept_arg2, $ac_cv_func_accept_arg3 *" >&6; }
-
-cat >>confdefs.h <<_ACEOF
-#define ACCEPT_TYPE_RETURN $ac_cv_func_accept_return
-_ACEOF
-
-
-cat >>confdefs.h <<_ACEOF
-#define ACCEPT_TYPE_ARG1 $ac_cv_func_accept_arg1
-_ACEOF
-
-
-cat >>confdefs.h <<_ACEOF
-#define ACCEPT_TYPE_ARG2 $ac_cv_func_accept_arg2
-_ACEOF
-
-
-cat >>confdefs.h <<_ACEOF
-#define ACCEPT_TYPE_ARG3 $ac_cv_func_accept_arg3
-_ACEOF
-
-
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether gettimeofday takes only one argument" >&5
 $as_echo_n "checking whether gettimeofday takes only one argument... " >&6; }
 if ${pgac_cv_func_gettimeofday_1arg+:} false; then :
diff --git a/configure.ac b/configure.ac
index 44ee3ebe2f..22cabe1b60 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1552,6 +1552,7 @@ PGAC_C_BUILTIN_UNREACHABLE
 PGAC_C_COMPUTED_GOTO
 PGAC_STRUCT_TIMEZONE
 PGAC_UNION_SEMUN
+AC_CHECK_TYPES(socklen_t, [], [], [#include <sys/socket.h>])
 PGAC_STRUCT_SOCKADDR_UN
 PGAC_STRUCT_SOCKADDR_STORAGE
 PGAC_STRUCT_SOCKADDR_STORAGE_MEMBERS
@@ -1686,7 +1687,6 @@ fi
 ##
 
 PGAC_VAR_INT_TIMEZONE
-AC_FUNC_ACCEPT_ARGTYPES
 PGAC_FUNC_GETTIMEOFDAY_1ARG
 PGAC_FUNC_WCSTOMBS_L
 
diff --git a/src/backend/libpq/auth.c b/src/backend/libpq/auth.c
index a317aef1c9..7bcf52523b 100644
--- a/src/backend/libpq/auth.c
+++ b/src/backend/libpq/auth.c
@@ -3026,7 +3026,7 @@ PerformRadiusTransaction(const char *server, const char *secret, const char *por
 	struct addrinfo hint;
 	struct addrinfo *serveraddrs;
 	int			port;
-	ACCEPT_TYPE_ARG3 addrsize;
+	socklen_t	addrsize;
 	fd_set		fdset;
 	struct timeval endtime;
 	int			i,
diff --git a/src/backend/libpq/pqcomm.c b/src/backend/libpq/pqcomm.c
index 89a5f901aa..6f2b2bbb37 100644
--- a/src/backend/libpq/pqcomm.c
+++ b/src/backend/libpq/pqcomm.c
@@ -1620,7 +1620,7 @@ pq_getkeepalivesidle(Port *port)
 	if (port->default_keepalives_idle == 0)
 	{
 #ifndef WIN32
-		ACCEPT_TYPE_ARG3 size = sizeof(port->default_keepalives_idle);
+		socklen_t	size = sizeof(port->default_keepalives_idle);
 
 		if (getsockopt(port->sock, IPPROTO_TCP, PG_TCP_KEEPALIVE_IDLE,
 					   (char *) &port->default_keepalives_idle,
@@ -1705,7 +1705,7 @@ pq_getkeepalivesinterval(Port *port)
 	if (port->default_keepalives_interval == 0)
 	{
 #ifndef WIN32
-		ACCEPT_TYPE_ARG3 size = sizeof(port->default_keepalives_interval);
+		socklen_t	size = sizeof(port->default_keepalives_interval);
 
 		if (getsockopt(port->sock, IPPROTO_TCP, TCP_KEEPINTVL,
 					   (char *) &port->default_keepalives_interval,
@@ -1788,7 +1788,7 @@ pq_getkeepalivescount(Port *port)
 
 	if (port->default_keepalives_count == 0)
 	{
-		ACCEPT_TYPE_ARG3 size = sizeof(port->default_keepalives_count);
+		socklen_t	size = sizeof(port->default_keepalives_count);
 
 		if (getsockopt(port->sock, IPPROTO_TCP, TCP_KEEPCNT,
 					   (char *) &port->default_keepalives_count,
@@ -1863,7 +1863,7 @@ pq_gettcpusertimeout(Port *port)
 
 	if (port->default_tcp_user_timeout == 0)
 	{
-		ACCEPT_TYPE_ARG3 size = sizeof(port->default_tcp_user_timeout);
+		socklen_t	size = sizeof(port->default_tcp_user_timeout);
 
 		if (getsockopt(port->sock, IPPROTO_TCP, TCP_USER_TIMEOUT,
 					   (char *) &port->default_tcp_user_timeout,
diff --git a/src/backend/postmaster/pgstat.c b/src/backend/postmaster/pgstat.c
index b7d0fbaefd..8c166e5e16 100644
--- a/src/backend/postmaster/pgstat.c
+++ b/src/backend/postmaster/pgstat.c
@@ -391,7 +391,7 @@ static void pgstat_recv_tempfile(PgStat_MsgTempFile *msg, int len);
 void
 pgstat_init(void)
 {
-	ACCEPT_TYPE_ARG3 alen;
+	socklen_t	alen;
 	struct addrinfo *addrs = NULL,
 			   *addr,
 				hints;
@@ -624,7 +624,7 @@ pgstat_init(void)
 	{
 		int			old_rcvbuf;
 		int			new_rcvbuf;
-		ACCEPT_TYPE_ARG3 rcvbufsize = sizeof(old_rcvbuf);
+		socklen_t	rcvbufsize = sizeof(old_rcvbuf);
 
 		if (getsockopt(pgStatSock, SOL_SOCKET, SO_RCVBUF,
 					   (char *) &old_rcvbuf, &rcvbufsize) < 0)
diff --git a/src/include/c.h b/src/include/c.h
index c8ede08273..7c790f557e 100644
--- a/src/include/c.h
+++ b/src/include/c.h
@@ -408,6 +408,10 @@ typedef unsigned char bool;
  * ----------------------------------------------------------------
  */
 
+#ifndef HAVE_SOCKLEN_T
+typedef socklen_t int;
+#endif
+
 /*
  * Pointer
  *		Variable holding address of any memory resident object.
diff --git a/src/include/libpq/pqcomm.h b/src/include/libpq/pqcomm.h
index be9d970574..1bcc189dee 100644
--- a/src/include/libpq/pqcomm.h
+++ b/src/include/libpq/pqcomm.h
@@ -62,7 +62,7 @@ struct sockaddr_storage
 typedef struct
 {
 	struct sockaddr_storage addr;
-	ACCEPT_TYPE_ARG3 salen;
+	socklen_t	salen;
 } SockAddr;
 
 /* Configure the UNIX socket location for the well known port. */
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 15ffdd895a..ca3592465e 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -1,17 +1,5 @@
 /* src/include/pg_config.h.in.  Generated from configure.ac by autoheader.  */
 
-/* Define to the type of arg 1 of 'accept' */
-#undef ACCEPT_TYPE_ARG1
-
-/* Define to the type of arg 2 of 'accept' */
-#undef ACCEPT_TYPE_ARG2
-
-/* Define to the type of arg 3 of 'accept' */
-#undef ACCEPT_TYPE_ARG3
-
-/* Define to the return type of 'accept' */
-#undef ACCEPT_TYPE_RETURN
-
 /* Define if building universal (internal helper macro) */
 #undef AC_APPLE_UNIVERSAL_BUILD
 
@@ -518,6 +506,9 @@
 /* Define to 1 if you have the `shm_open' function. */
 #undef HAVE_SHM_OPEN
 
+/* Define to 1 if the system has the type `socklen_t'. */
+#undef HAVE_SOCKLEN_T
+
 /* Define to 1 if you have spinlocks. */
 #undef HAVE_SPINLOCKS
 
diff --git a/src/interfaces/libpq/fe-connect.c b/src/interfaces/libpq/fe-connect.c
index b288d346f9..0b7ee3e3c8 100644
--- a/src/interfaces/libpq/fe-connect.c
+++ b/src/interfaces/libpq/fe-connect.c
@@ -2744,7 +2744,7 @@ PQconnectPoll(PGconn *conn)
 
 		case CONNECTION_STARTED:
 			{
-				ACCEPT_TYPE_ARG3 optlen = sizeof(optval);
+				socklen_t	optlen = sizeof(optval);
 
 				/*
 				 * Write ready, since we've made it here, so the connection
diff --git a/src/port/getpeereid.c b/src/port/getpeereid.c
index d6aa755d30..4631869180 100644
--- a/src/port/getpeereid.c
+++ b/src/port/getpeereid.c
@@ -37,7 +37,7 @@ getpeereid(int sock, uid_t *uid, gid_t *gid)
 #if defined(SO_PEERCRED)
 	/* Linux: use getsockopt(SO_PEERCRED) */
 	struct ucred peercred;
-	ACCEPT_TYPE_ARG3 so_len = sizeof(peercred);
+	socklen_t	so_len = sizeof(peercred);
 
 	if (getsockopt(sock, SOL_SOCKET, SO_PEERCRED, &peercred, &so_len) != 0 ||
 		so_len != sizeof(peercred))
@@ -48,7 +48,7 @@ getpeereid(int sock, uid_t *uid, gid_t *gid)
 #elif defined(LOCAL_PEERCRED)
 	/* Debian with FreeBSD kernel: use getsockopt(LOCAL_PEERCRED) */
 	struct xucred peercred;
-	ACCEPT_TYPE_ARG3 so_len = sizeof(peercred);
+	socklen_t	so_len = sizeof(peercred);
 
 	if (getsockopt(sock, 0, LOCAL_PEERCRED, &peercred, &so_len) != 0 ||
 		so_len != sizeof(peercred) ||
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 43fd1be088..a013951e0d 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -205,10 +205,6 @@ sub GenerateFiles
 	# Every symbol in pg_config.h.in must be accounted for here.  Set
 	# to undef if the symbol should not be defined.
 	my %define = (
-		ACCEPT_TYPE_ARG1           => 'unsigned int',
-		ACCEPT_TYPE_ARG2           => 'struct sockaddr *',
-		ACCEPT_TYPE_ARG3           => 'int',
-		ACCEPT_TYPE_RETURN         => 'unsigned int PASCAL',
 		ALIGNOF_DOUBLE             => 8,
 		ALIGNOF_INT                => 4,
 		ALIGNOF_LONG               => 4,
@@ -365,6 +361,7 @@ sub GenerateFiles
 		HAVE_SETPROCTITLE_FAST                   => undef,
 		HAVE_SETSID                              => undef,
 		HAVE_SHM_OPEN                            => undef,
+		HAVE_SOCKLEN_T                           => 1,
 		HAVE_SPINLOCKS                           => 1,
 		HAVE_SRANDOM                             => undef,
 		HAVE_STDBOOL_H                           => 1,
-- 
2.33.1

Attachments:

  [text/plain] 0001-Remove-check-for-accept-argument-types.patch (15.0K, ../../3538f4c4-1886-64f2-dcff-aaad8267fb82@enterprisedb.com/2-0001-Remove-check-for-accept-argument-types.patch)
  download | inline diff:
From 6229ba9973134dfb184eb21bc62822d83ba554d8 Mon Sep 17 00:00:00 2001
From: Peter Eisentraut <peter@eisentraut.org>
Date: Thu, 4 Nov 2021 13:50:25 +0100
Subject: [PATCH] Remove check for accept() argument types

---
 aclocal.m4                        |  1 -
 config/ac_func_accept_argtypes.m4 | 78 -----------------------------
 configure                         | 82 +++++--------------------------
 configure.ac                      |  2 +-
 src/backend/libpq/auth.c          |  2 +-
 src/backend/libpq/pqcomm.c        |  8 +--
 src/backend/postmaster/pgstat.c   |  4 +-
 src/include/c.h                   |  4 ++
 src/include/libpq/pqcomm.h        |  2 +-
 src/include/pg_config.h.in        | 15 ++----
 src/interfaces/libpq/fe-connect.c |  2 +-
 src/port/getpeereid.c             |  4 +-
 src/tools/msvc/Solution.pm        |  5 +-
 13 files changed, 31 insertions(+), 178 deletions(-)
 delete mode 100644 config/ac_func_accept_argtypes.m4

diff --git a/aclocal.m4 b/aclocal.m4
index 5e22482cd5..58ade65046 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -1,5 +1,4 @@
 dnl aclocal.m4
-m4_include([config/ac_func_accept_argtypes.m4])
 m4_include([config/ax_prog_perl_modules.m4])
 m4_include([config/ax_pthread.m4])
 m4_include([config/c-compiler.m4])
diff --git a/config/ac_func_accept_argtypes.m4 b/config/ac_func_accept_argtypes.m4
deleted file mode 100644
index 178ef67818..0000000000
--- a/config/ac_func_accept_argtypes.m4
+++ /dev/null
@@ -1,78 +0,0 @@
-# config/ac_func_accept_argtypes.m4
-# This comes from the official Autoconf macro archive at
-# <http://research.cys.de/autoconf-archive/>
-
-
-dnl @synopsis AC_FUNC_ACCEPT_ARGTYPES
-dnl
-dnl Checks the data types of the three arguments to accept(). Results are
-dnl placed into the symbols ACCEPT_TYPE_RETURN and ACCEPT_TYPE_ARG[123],
-dnl consistent with the following example:
-dnl
-dnl       #define ACCEPT_TYPE_RETURN int
-dnl       #define ACCEPT_TYPE_ARG1 int
-dnl       #define ACCEPT_TYPE_ARG2 struct sockaddr *
-dnl       #define ACCEPT_TYPE_ARG3 socklen_t
-dnl
-dnl NOTE: This is just a modified version of the AC_FUNC_SELECT_ARGTYPES
-dnl macro. Credit for that one goes to David MacKenzie et. al.
-dnl
-dnl @version $Id: ac_func_accept_argtypes.m4,v 1.1 1999/12/03 11:29:29 simons Exp $
-dnl @author Daniel Richard G. <skunk@mit.edu>
-dnl
-
-# PostgreSQL local changes: In the original version ACCEPT_TYPE_ARG3
-# is a pointer type. That's kind of useless because then you can't
-# use the macro to define a corresponding variable. We also make the
-# reasonable(?) assumption that you can use arg3 for getsocktype etc.
-# as well (i.e., anywhere POSIX.2 has socklen_t).
-#
-# arg2 can also be `const' (e.g., RH 4.2). Change the order of tests
-# for arg3 so that `int' is first, in case there is no prototype at all.
-#
-# Solaris 7 and 8 have arg3 as 'void *' (disguised as 'Psocklen_t'
-# which is *not* 'socklen_t *').  If we detect that, then we assume
-# 'int' as the result, because that ought to work best.
-#
-# On Win32, accept() returns 'unsigned int PASCAL'
-# Win64 uses SOCKET for return and arg1
-
-AC_DEFUN([AC_FUNC_ACCEPT_ARGTYPES],
-[AC_MSG_CHECKING([types of arguments for accept()])
- AC_CACHE_VAL(ac_cv_func_accept_return,dnl
- [AC_CACHE_VAL(ac_cv_func_accept_arg1,dnl
-  [AC_CACHE_VAL(ac_cv_func_accept_arg2,dnl
-   [AC_CACHE_VAL(ac_cv_func_accept_arg3,dnl
-    [for ac_cv_func_accept_return in 'int' 'SOCKET WSAAPI' 'unsigned int PASCAL'; do
-      for ac_cv_func_accept_arg1 in 'int' 'SOCKET' 'unsigned int'; do
-       for ac_cv_func_accept_arg2 in 'struct sockaddr *' 'const struct sockaddr *' 'void *'; do
-        for ac_cv_func_accept_arg3 in 'int' 'size_t' 'socklen_t' 'unsigned int' 'void'; do
-         AC_COMPILE_IFELSE([AC_LANG_SOURCE(
-[#include <sys/types.h>
-#include <sys/socket.h>
-extern $ac_cv_func_accept_return accept ($ac_cv_func_accept_arg1, $ac_cv_func_accept_arg2, $ac_cv_func_accept_arg3 *);])],
-         [ac_not_found=no; break 4], [ac_not_found=yes])
-       done
-      done
-     done
-    done
-    if test "$ac_not_found" = yes; then
-      AC_MSG_ERROR([could not determine argument types])
-    fi
-    if test "$ac_cv_func_accept_arg3" = "void"; then
-      ac_cv_func_accept_arg3=int
-    fi
-    ])dnl AC_CACHE_VAL
-   ])dnl AC_CACHE_VAL
-  ])dnl AC_CACHE_VAL
- ])dnl AC_CACHE_VAL
- AC_MSG_RESULT([$ac_cv_func_accept_return, $ac_cv_func_accept_arg1, $ac_cv_func_accept_arg2, $ac_cv_func_accept_arg3 *])
- AC_DEFINE_UNQUOTED(ACCEPT_TYPE_RETURN, $ac_cv_func_accept_return,
-                    [Define to the return type of 'accept'])
- AC_DEFINE_UNQUOTED(ACCEPT_TYPE_ARG1, $ac_cv_func_accept_arg1,
-                    [Define to the type of arg 1 of 'accept'])
- AC_DEFINE_UNQUOTED(ACCEPT_TYPE_ARG2, $ac_cv_func_accept_arg2,
-                    [Define to the type of arg 2 of 'accept'])
- AC_DEFINE_UNQUOTED(ACCEPT_TYPE_ARG3, $ac_cv_func_accept_arg3,
-                    [Define to the type of arg 3 of 'accept'])
-])
diff --git a/configure b/configure
index 4ffefe4655..e60e78efdf 100755
--- a/configure
+++ b/configure
@@ -14615,6 +14615,17 @@ cat >>confdefs.h <<_ACEOF
 _ACEOF
 
 
+fi
+
+ac_fn_c_check_type "$LINENO" "socklen_t" "ac_cv_type_socklen_t" "#include <sys/socket.h>
+"
+if test "x$ac_cv_type_socklen_t" = xyes; then :
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_SOCKLEN_T 1
+_ACEOF
+
+
 fi
 
 ac_fn_c_check_type "$LINENO" "struct sockaddr_un" "ac_cv_type_struct_sockaddr_un" "#include <sys/types.h>
@@ -15327,77 +15338,6 @@ if test x"$pgac_cv_var_int_timezone" = xyes ; then
 $as_echo "#define HAVE_INT_TIMEZONE 1" >>confdefs.h
 
 fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking types of arguments for accept()" >&5
-$as_echo_n "checking types of arguments for accept()... " >&6; }
- if ${ac_cv_func_accept_return+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-   if ${ac_cv_func_accept_arg1+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-    if ${ac_cv_func_accept_arg2+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-     if ${ac_cv_func_accept_arg3+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-      for ac_cv_func_accept_return in 'int' 'SOCKET WSAAPI' 'unsigned int PASCAL'; do
-      for ac_cv_func_accept_arg1 in 'int' 'SOCKET' 'unsigned int'; do
-       for ac_cv_func_accept_arg2 in 'struct sockaddr *' 'const struct sockaddr *' 'void *'; do
-        for ac_cv_func_accept_arg3 in 'int' 'size_t' 'socklen_t' 'unsigned int' 'void'; do
-         cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <sys/types.h>
-#include <sys/socket.h>
-extern $ac_cv_func_accept_return accept ($ac_cv_func_accept_arg1, $ac_cv_func_accept_arg2, $ac_cv_func_accept_arg3 *);
-_ACEOF
-if ac_fn_c_try_compile "$LINENO"; then :
-  ac_not_found=no; break 4
-else
-  ac_not_found=yes
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
-       done
-      done
-     done
-    done
-    if test "$ac_not_found" = yes; then
-      as_fn_error $? "could not determine argument types" "$LINENO" 5
-    fi
-    if test "$ac_cv_func_accept_arg3" = "void"; then
-      ac_cv_func_accept_arg3=int
-    fi
-
-fi
-
-fi
-
-fi
-
-fi
- { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_accept_return, $ac_cv_func_accept_arg1, $ac_cv_func_accept_arg2, $ac_cv_func_accept_arg3 *" >&5
-$as_echo "$ac_cv_func_accept_return, $ac_cv_func_accept_arg1, $ac_cv_func_accept_arg2, $ac_cv_func_accept_arg3 *" >&6; }
-
-cat >>confdefs.h <<_ACEOF
-#define ACCEPT_TYPE_RETURN $ac_cv_func_accept_return
-_ACEOF
-
-
-cat >>confdefs.h <<_ACEOF
-#define ACCEPT_TYPE_ARG1 $ac_cv_func_accept_arg1
-_ACEOF
-
-
-cat >>confdefs.h <<_ACEOF
-#define ACCEPT_TYPE_ARG2 $ac_cv_func_accept_arg2
-_ACEOF
-
-
-cat >>confdefs.h <<_ACEOF
-#define ACCEPT_TYPE_ARG3 $ac_cv_func_accept_arg3
-_ACEOF
-
-
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether gettimeofday takes only one argument" >&5
 $as_echo_n "checking whether gettimeofday takes only one argument... " >&6; }
 if ${pgac_cv_func_gettimeofday_1arg+:} false; then :
diff --git a/configure.ac b/configure.ac
index 44ee3ebe2f..22cabe1b60 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1552,6 +1552,7 @@ PGAC_C_BUILTIN_UNREACHABLE
 PGAC_C_COMPUTED_GOTO
 PGAC_STRUCT_TIMEZONE
 PGAC_UNION_SEMUN
+AC_CHECK_TYPES(socklen_t, [], [], [#include <sys/socket.h>])
 PGAC_STRUCT_SOCKADDR_UN
 PGAC_STRUCT_SOCKADDR_STORAGE
 PGAC_STRUCT_SOCKADDR_STORAGE_MEMBERS
@@ -1686,7 +1687,6 @@ fi
 ##
 
 PGAC_VAR_INT_TIMEZONE
-AC_FUNC_ACCEPT_ARGTYPES
 PGAC_FUNC_GETTIMEOFDAY_1ARG
 PGAC_FUNC_WCSTOMBS_L
 
diff --git a/src/backend/libpq/auth.c b/src/backend/libpq/auth.c
index a317aef1c9..7bcf52523b 100644
--- a/src/backend/libpq/auth.c
+++ b/src/backend/libpq/auth.c
@@ -3026,7 +3026,7 @@ PerformRadiusTransaction(const char *server, const char *secret, const char *por
 	struct addrinfo hint;
 	struct addrinfo *serveraddrs;
 	int			port;
-	ACCEPT_TYPE_ARG3 addrsize;
+	socklen_t	addrsize;
 	fd_set		fdset;
 	struct timeval endtime;
 	int			i,
diff --git a/src/backend/libpq/pqcomm.c b/src/backend/libpq/pqcomm.c
index 89a5f901aa..6f2b2bbb37 100644
--- a/src/backend/libpq/pqcomm.c
+++ b/src/backend/libpq/pqcomm.c
@@ -1620,7 +1620,7 @@ pq_getkeepalivesidle(Port *port)
 	if (port->default_keepalives_idle == 0)
 	{
 #ifndef WIN32
-		ACCEPT_TYPE_ARG3 size = sizeof(port->default_keepalives_idle);
+		socklen_t	size = sizeof(port->default_keepalives_idle);
 
 		if (getsockopt(port->sock, IPPROTO_TCP, PG_TCP_KEEPALIVE_IDLE,
 					   (char *) &port->default_keepalives_idle,
@@ -1705,7 +1705,7 @@ pq_getkeepalivesinterval(Port *port)
 	if (port->default_keepalives_interval == 0)
 	{
 #ifndef WIN32
-		ACCEPT_TYPE_ARG3 size = sizeof(port->default_keepalives_interval);
+		socklen_t	size = sizeof(port->default_keepalives_interval);
 
 		if (getsockopt(port->sock, IPPROTO_TCP, TCP_KEEPINTVL,
 					   (char *) &port->default_keepalives_interval,
@@ -1788,7 +1788,7 @@ pq_getkeepalivescount(Port *port)
 
 	if (port->default_keepalives_count == 0)
 	{
-		ACCEPT_TYPE_ARG3 size = sizeof(port->default_keepalives_count);
+		socklen_t	size = sizeof(port->default_keepalives_count);
 
 		if (getsockopt(port->sock, IPPROTO_TCP, TCP_KEEPCNT,
 					   (char *) &port->default_keepalives_count,
@@ -1863,7 +1863,7 @@ pq_gettcpusertimeout(Port *port)
 
 	if (port->default_tcp_user_timeout == 0)
 	{
-		ACCEPT_TYPE_ARG3 size = sizeof(port->default_tcp_user_timeout);
+		socklen_t	size = sizeof(port->default_tcp_user_timeout);
 
 		if (getsockopt(port->sock, IPPROTO_TCP, TCP_USER_TIMEOUT,
 					   (char *) &port->default_tcp_user_timeout,
diff --git a/src/backend/postmaster/pgstat.c b/src/backend/postmaster/pgstat.c
index b7d0fbaefd..8c166e5e16 100644
--- a/src/backend/postmaster/pgstat.c
+++ b/src/backend/postmaster/pgstat.c
@@ -391,7 +391,7 @@ static void pgstat_recv_tempfile(PgStat_MsgTempFile *msg, int len);
 void
 pgstat_init(void)
 {
-	ACCEPT_TYPE_ARG3 alen;
+	socklen_t	alen;
 	struct addrinfo *addrs = NULL,
 			   *addr,
 				hints;
@@ -624,7 +624,7 @@ pgstat_init(void)
 	{
 		int			old_rcvbuf;
 		int			new_rcvbuf;
-		ACCEPT_TYPE_ARG3 rcvbufsize = sizeof(old_rcvbuf);
+		socklen_t	rcvbufsize = sizeof(old_rcvbuf);
 
 		if (getsockopt(pgStatSock, SOL_SOCKET, SO_RCVBUF,
 					   (char *) &old_rcvbuf, &rcvbufsize) < 0)
diff --git a/src/include/c.h b/src/include/c.h
index c8ede08273..7c790f557e 100644
--- a/src/include/c.h
+++ b/src/include/c.h
@@ -408,6 +408,10 @@ typedef unsigned char bool;
  * ----------------------------------------------------------------
  */
 
+#ifndef HAVE_SOCKLEN_T
+typedef socklen_t int;
+#endif
+
 /*
  * Pointer
  *		Variable holding address of any memory resident object.
diff --git a/src/include/libpq/pqcomm.h b/src/include/libpq/pqcomm.h
index be9d970574..1bcc189dee 100644
--- a/src/include/libpq/pqcomm.h
+++ b/src/include/libpq/pqcomm.h
@@ -62,7 +62,7 @@ struct sockaddr_storage
 typedef struct
 {
 	struct sockaddr_storage addr;
-	ACCEPT_TYPE_ARG3 salen;
+	socklen_t	salen;
 } SockAddr;
 
 /* Configure the UNIX socket location for the well known port. */
diff --git a/src/include/pg_config.h.in b/src/include/pg_config.h.in
index 15ffdd895a..ca3592465e 100644
--- a/src/include/pg_config.h.in
+++ b/src/include/pg_config.h.in
@@ -1,17 +1,5 @@
 /* src/include/pg_config.h.in.  Generated from configure.ac by autoheader.  */
 
-/* Define to the type of arg 1 of 'accept' */
-#undef ACCEPT_TYPE_ARG1
-
-/* Define to the type of arg 2 of 'accept' */
-#undef ACCEPT_TYPE_ARG2
-
-/* Define to the type of arg 3 of 'accept' */
-#undef ACCEPT_TYPE_ARG3
-
-/* Define to the return type of 'accept' */
-#undef ACCEPT_TYPE_RETURN
-
 /* Define if building universal (internal helper macro) */
 #undef AC_APPLE_UNIVERSAL_BUILD
 
@@ -518,6 +506,9 @@
 /* Define to 1 if you have the `shm_open' function. */
 #undef HAVE_SHM_OPEN
 
+/* Define to 1 if the system has the type `socklen_t'. */
+#undef HAVE_SOCKLEN_T
+
 /* Define to 1 if you have spinlocks. */
 #undef HAVE_SPINLOCKS
 
diff --git a/src/interfaces/libpq/fe-connect.c b/src/interfaces/libpq/fe-connect.c
index b288d346f9..0b7ee3e3c8 100644
--- a/src/interfaces/libpq/fe-connect.c
+++ b/src/interfaces/libpq/fe-connect.c
@@ -2744,7 +2744,7 @@ PQconnectPoll(PGconn *conn)
 
 		case CONNECTION_STARTED:
 			{
-				ACCEPT_TYPE_ARG3 optlen = sizeof(optval);
+				socklen_t	optlen = sizeof(optval);
 
 				/*
 				 * Write ready, since we've made it here, so the connection
diff --git a/src/port/getpeereid.c b/src/port/getpeereid.c
index d6aa755d30..4631869180 100644
--- a/src/port/getpeereid.c
+++ b/src/port/getpeereid.c
@@ -37,7 +37,7 @@ getpeereid(int sock, uid_t *uid, gid_t *gid)
 #if defined(SO_PEERCRED)
 	/* Linux: use getsockopt(SO_PEERCRED) */
 	struct ucred peercred;
-	ACCEPT_TYPE_ARG3 so_len = sizeof(peercred);
+	socklen_t	so_len = sizeof(peercred);
 
 	if (getsockopt(sock, SOL_SOCKET, SO_PEERCRED, &peercred, &so_len) != 0 ||
 		so_len != sizeof(peercred))
@@ -48,7 +48,7 @@ getpeereid(int sock, uid_t *uid, gid_t *gid)
 #elif defined(LOCAL_PEERCRED)
 	/* Debian with FreeBSD kernel: use getsockopt(LOCAL_PEERCRED) */
 	struct xucred peercred;
-	ACCEPT_TYPE_ARG3 so_len = sizeof(peercred);
+	socklen_t	so_len = sizeof(peercred);
 
 	if (getsockopt(sock, 0, LOCAL_PEERCRED, &peercred, &so_len) != 0 ||
 		so_len != sizeof(peercred) ||
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm
index 43fd1be088..a013951e0d 100644
--- a/src/tools/msvc/Solution.pm
+++ b/src/tools/msvc/Solution.pm
@@ -205,10 +205,6 @@ sub GenerateFiles
 	# Every symbol in pg_config.h.in must be accounted for here.  Set
 	# to undef if the symbol should not be defined.
 	my %define = (
-		ACCEPT_TYPE_ARG1           => 'unsigned int',
-		ACCEPT_TYPE_ARG2           => 'struct sockaddr *',
-		ACCEPT_TYPE_ARG3           => 'int',
-		ACCEPT_TYPE_RETURN         => 'unsigned int PASCAL',
 		ALIGNOF_DOUBLE             => 8,
 		ALIGNOF_INT                => 4,
 		ALIGNOF_LONG               => 4,
@@ -365,6 +361,7 @@ sub GenerateFiles
 		HAVE_SETPROCTITLE_FAST                   => undef,
 		HAVE_SETSID                              => undef,
 		HAVE_SHM_OPEN                            => undef,
+		HAVE_SOCKLEN_T                           => 1,
 		HAVE_SPINLOCKS                           => 1,
 		HAVE_SRANDOM                             => undef,
 		HAVE_STDBOOL_H                           => 1,
-- 
2.33.1

^ permalink  raw  reply  [nested|flat] 7+ messages in thread

* Re: [RFC] building postgres with meson -v
@ 2021-11-04 18:48  Andres Freund <andres@anarazel.de>
  parent: Peter Eisentraut <peter.eisentraut@enterprisedb.com>
  0 siblings, 1 reply; 7+ messages in thread

From: Andres Freund @ 2021-11-04 18:48 UTC (permalink / raw)
  To: Peter Eisentraut <peter.eisentraut@enterprisedb.com>; +Cc: pgsql-hackers@postgresql.org, Thomas Munro <thomas.munro@gmail.com>; Tom Lane <tgl@sss.pgh.pa.us>; Peter Eisentraut <peter_e@gmx.net>; John Naylor <john.naylor@enterprisedb.com>; Andrew Dunstan <andrew@dunslane.net>; Josef Šimánek <josef.simanek@gmail.com>

Hi,

On 2021-11-04 19:17:05 +0100, Peter Eisentraut wrote:
> On 01.11.21 00:24, Andres Freund wrote:
> > - remaining hardcoded configure tests (e.g. ACCEPT_TYPE_ARG*)
> 
> I think we can get rid of that one.

Oh, nice!

I was somewhat confused by "unsigned int PASCAL" as a type.


> That test originally catered to some strange edge cases where the third
> argument was size_t that was not the same size as int.  That is long gone,
> if it ever really existed.  All systems currently of interest use either
> socklen_t or int, and socklen_t is always int.  (A few build farm animals
> report size_t, but they are all 32-bit.)

> diff --git a/src/include/c.h b/src/include/c.h
> index c8ede08273..7c790f557e 100644
> --- a/src/include/c.h
> +++ b/src/include/c.h
> @@ -408,6 +408,10 @@ typedef unsigned char bool;
>   * ----------------------------------------------------------------
>   */
>  
> +#ifndef HAVE_SOCKLEN_T
> +typedef socklen_t int;
> +#endif

I'd put this in port.h instead of c.h, or is there a reason not to do so?


Probably worth putting this in fairly soon independent of whether anything
happens wrt meson?

Greetings,

Andres Freund





^ permalink  raw  reply  [nested|flat] 7+ messages in thread

* Re: [RFC] building postgres with meson -v
@ 2021-11-09 15:49  Peter Eisentraut <peter.eisentraut@enterprisedb.com>
  parent: Andres Freund <andres@anarazel.de>
  0 siblings, 0 replies; 7+ messages in thread

From: Peter Eisentraut @ 2021-11-09 15:49 UTC (permalink / raw)
  To: Andres Freund <andres@anarazel.de>; +Cc: pgsql-hackers@postgresql.org, Thomas Munro <thomas.munro@gmail.com>; Tom Lane <tgl@sss.pgh.pa.us>; Peter Eisentraut <peter_e@gmx.net>; John Naylor <john.naylor@enterprisedb.com>; Andrew Dunstan <andrew@dunslane.net>; Josef Šimánek <josef.simanek@gmail.com>

On 04.11.21 19:48, Andres Freund wrote:
> Probably worth putting this in fairly soon independent of whether anything
> happens wrt meson?

OK, done. Let's see what happens. ;-)





^ permalink  raw  reply  [nested|flat] 7+ messages in thread

* Re: [RFC] building postgres with meson -v
@ 2021-11-10 10:07  Peter Eisentraut <peter.eisentraut@enterprisedb.com>
  parent: Andres Freund <andres@anarazel.de>
  2 siblings, 1 reply; 7+ messages in thread

From: Peter Eisentraut @ 2021-11-10 10:07 UTC (permalink / raw)
  To: Andres Freund <andres@anarazel.de>; pgsql-hackers

On 01.11.21 00:24, Andres Freund wrote:
> Hi,
> 
> Attached is an updated version of the meson patchset.

Nanoreview:  I think the patch

Subject: [PATCH v5 11/16] meson: prereq: Handle DLSUFFIX in msvc builds
  similar to other build envs.

is good to go.  It's not clear why it's needed in this context, but it 
seems good in general to make these things more consistent.





^ permalink  raw  reply  [nested|flat] 7+ messages in thread

* Re: [RFC] building postgres with meson -v
@ 2021-11-11 03:21  Andres Freund <andres@anarazel.de>
  parent: Peter Eisentraut <peter.eisentraut@enterprisedb.com>
  0 siblings, 0 replies; 7+ messages in thread

From: Andres Freund @ 2021-11-11 03:21 UTC (permalink / raw)
  To: Peter Eisentraut <peter.eisentraut@enterprisedb.com>; +Cc: pgsql-hackers

Hi,

On 2021-11-10 11:07:02 +0100, Peter Eisentraut wrote:
> On 01.11.21 00:24, Andres Freund wrote:
> > Hi,
> > 
> > Attached is an updated version of the meson patchset.
> 
> Nanoreview:  I think the patch

Thanks for looking!


> Subject: [PATCH v5 11/16] meson: prereq: Handle DLSUFFIX in msvc builds
>  similar to other build envs.
> 
> is good to go.  It's not clear why it's needed in this context, but it seems
> good in general to make these things more consistent.

The way it was set between msvc and other builds is currently inconsistent
between msvc and other builds, by virtue of win32_port.h defining for msvc:

/* Things that exist in MinGW headers, but need to be added to MSVC */
#ifdef _MSC_VER
...
/* Pulled from Makefile.port in MinGW */
#define DLSUFFIX ".dll"


it'd have needed unnecessarily contorted logic to continue setting DLSUFFIX
via commandline for !msvc, given that the the meson stuff is the same for msvc
and !msvc.

Greetings,

Andres Freund





^ permalink  raw  reply  [nested|flat] 7+ messages in thread

* Re: [RFC] building postgres with meson -v
@ 2022-08-06 03:53  Andres Freund <andres@anarazel.de>
  parent: Andres Freund <andres@anarazel.de>
  2 siblings, 0 replies; 7+ messages in thread

From: Andres Freund @ 2022-08-06 03:53 UTC (permalink / raw)
  To: pgsql-hackers; +Cc: Thomas Munro <thomas.munro@gmail.com>; Tom Lane <tgl@sss.pgh.pa.us>; Peter Eisentraut <peter_e@gmx.net>; John Naylor <john.naylor@enterprisedb.com>; Andrew Dunstan <andrew@dunslane.net>; Josef Šimánek <josef.simanek@gmail.com>

Hi,

On 2021-10-31 16:24:48 -0700, Andres Freund wrote:
> - support for building docs.
>   I couldn't get dbtoepub work in a vpath style build, so I changed that
>   to also use pandoc. No idea if anybody uses the epub rules?

combing through various FIXMEs in the meson patch I started to look into docs
again. A few questions / noteworthy points:

- I still haven't gotten dbtoepub to work in vpath style builds (epub
  generation is instead using pandoc). Could somebody using these comment on
  the quality difference?

  We don't seem to offer these for download anywhere...

  Worth noting that dbtoepub takes approximately forever (>25min). Not that
  pandoc is fast, but ...

  Unfortunately pandoc doesn't understand <part> level stuff. That'd probably
  easy enough to tweak, but ...

- We have logic to change the man section (grep for sqlmansect) for some
  platforms. The only remaining platform is solaris. I'm inclined to not
  implement that.

- I've not implemented the texinfo targets - don't think they're really used?

Greetings,

Andres Freund





^ permalink  raw  reply  [nested|flat] 7+ messages in thread


end of thread, other threads:[~2022-08-06 03:53 UTC | newest]

Thread overview: 7+ messages (download: mbox mbox.gz follow: Atom feed)
-- links below jump to the message on this page --
2021-10-31 23:24 Re: [RFC] building postgres with meson -v Andres Freund <andres@anarazel.de>
2021-11-04 18:17 ` Peter Eisentraut <peter.eisentraut@enterprisedb.com>
2021-11-04 18:48   ` Andres Freund <andres@anarazel.de>
2021-11-09 15:49     ` Peter Eisentraut <peter.eisentraut@enterprisedb.com>
2021-11-10 10:07 ` Peter Eisentraut <peter.eisentraut@enterprisedb.com>
2021-11-11 03:21   ` Andres Freund <andres@anarazel.de>
2022-08-06 03:53 ` Andres Freund <andres@anarazel.de>

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