Changes/PostgreSQL 13

PostgreSQL 13

Summary

Update of PostgreSQL (postgresql and libpq components) in Fedora from version 12 to version 13 in the non-modular (main) builds.

Owner

• Name: Patrik Novotny
• Email: panovotn@redhat.com

Current status

• Targeted release: Fedora 34
• Last updated: 2020-12-16
• FESCo issue: #2448
• Tracker bug: <will be assigned by the Wrangler>
• Release notes tracker: <will be assigned by the Wrangler>

Detailed Description

Update of PostgreSQL (postgresql and libpq components) in Fedora from version 12 to version 13 in the non-modular (main) builds.

This also involves updating and rebuilding the PostgreSQL plugins that depend on postgresql server.

Benefit to Fedora

Latest stable software is used by Fedora users.

Scope

• Proposal owners:
  • Prepare PostgreSQL 13 as a module for Rawhide and at least one stable Fedora release (done)
  • Prepare PostgreSQL 12 as a module for Rawhide, so there would be a failover in case of problems
  • Check software that requires or depends on postgresql-server or libpq packages for incompatibilities
  • Build PostgreSQL 13 (postgresql and libpq) to Rawhide in a site-tag (https://fedoraproject.org/wiki/Package_update_HOWTO#Creating_a_side-tag)
  • Rebuild those packages against PostgreSQL 13 in the site-tag (see Dependencies)
  • Let the site-tag merged
  • Gather user input on the changes between PostgreSQL 12 and PostgreSQL 13

• Other developers: N/A (not a System Wide Change)

• Release engineering: #Releng issue number (a check of an impact with Release Engineering is needed)

• Policies and guidelines: N/A (not a System Wide Change)

• Trademark approval: N/A (not needed for this Change)

Upgrade/compatibility impact

The PostgreSQL client library (libpq component) is compatible, but there is an issue with symbol versioning (originally reported https://bugzilla.redhat.com/show_bug.cgi?id=1893324 was reverted, but there is a plan to fix this properly together with this PostgreSQL update tracked in https://bugzilla.redhat.com/show_bug.cgi?id=1908268). So, there shouldn't be any issues with API compatibility, but rebuild of the depended components is necessary.

Server plugins might require a newer version update, because they sometimes have explicit server requirements. PostgreSQL maintainer will help fixing/rebuilding any issues in the plugins.

How To Test

Usual testing as when upgrading between major PostgreSQL versions, running postgresql-setup --upgrade is necessary between major versions.

Test that all other software runs well with PostgreSQL 13.

User Experience

The users will have to upgrade their databases the same way as between major PostgreSQL versions, aka postgresql-setup --upgrade after installing PostgreSQL 13 server packages.

If users want to stick with PostgreSQL 12 for a little longer, there will be PostgreSQL 12 module

Dependencies

There are some packages (mostly server plugins), that build on top of PostgreSQL. Since the separation of PostgreSQL client library (libpq component), only packages that build server plugins should use postgresql package in BuildRequires, others should use libpq. In both the cases, rebuild should be done to make sure all potential binary incompatibilities are handled.

• Critical dependecies
  • apr-util
  • bacula
  • bind
  • cyrus-imapd
  • cyrus-sasl
  • dovecot
  • freeradius
  • gdal
  • libecpg
  • nagios-plugins
  • opendbx
  • perl-DBD-Pg
  • php
  • pgaudit
  • postfix
  • qt
  • qt3
  • qt5-qtbase
  • redland
  • rsyslog
  • rubygem-pg
  • postgres-decoderbufs

The rest of the dependencies is not considered critical. Though, those will need to be rebuild as well.

• libpq
  • EMBOSS
  • PyGreSQL
  • apr
  • asterisk
  • bacula
  • biboumi
  • bind
  • clisp
  • collectd
  • coturn
  • cyrus
  • dovecot
  • dpsearch
  • dspam
  • echoping
  • exim
  • flow
  • freeradius
  • freight
  • gambas3
  • gammu
  • gawk
  • gdal
  • gearmand
  • glite
  • gnatcoll
  • gnokii
  • gpsdrive
  • grass
  • hydra
  • jabberd
  • kdb
  • kea
  • libdbi
  • libecpg
  • libgda
  • libnss
  • libpqxx
  • libpreludedb
  • libreoffice
  • libzdb
  • lua
  • mapnik
  • mapserver
  • matreshka
  • medusa
  • mirrorlist
  • mydns
  • nagios
  • nodejs
  • ocaml
  • opensips
  • osm2pgsql
  • pdns
  • perdition
  • perl
  • pg_top
  • pgadmin3
  • pgcenter
  • pgmodeler
  • php
  • player
  • postfix
  • postgis
  • proftpd
  • pspp
  • pure
  • python
  • qgis
  • qt
  • qt3
  • qt5
  • redland
  • repmgr
  • root
  • rsyslog
  • rubygem
  • saga
  • soci
  • sphinx
  • sysbench
  • tcl
  • unicornscan
  • vtk
  • wt
  • zabbix

• postgresql-server
  • glom
  • openqa
  • perl
  • pg_top
  • pgaudit
  • pgtoolkit
  • repmgr

Contingency Plan

Revert changes in the non-modular packages and provide PostgreSQL 13 as a module stream only.

Documentation

Upgrade startegy: https://www.postgresql.org/docs/13/upgrading.html

Release Notes

Release notes for PostgreSQL 13 release: https://www.postgresql.org/docs/13/index.html

Overall overview of the changes and improvements: https://www.postgresql.org/docs/13/release-13.html