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Percona Software for PostgreSQL Documentation

Percona Distribution for PostgreSQL 12.22 (2024-12-12)

Installation

Percona Distribution for PostgreSQL is a solution with the collection of tools from PostgreSQL community that are tested to work together and serve to assist you in deploying and managing PostgreSQL. The aim of Percona Distribution for PostgreSQL is to address the operational issues like High-Availability, Disaster Recovery, Security, Spatial data handling, Observability, Performance and Scalability and others that enterprises are facing.

This release of Percona Distribution for PostgreSQL is based on PostgreSQL 12.22.

Release Highlights

  • This is the last release of Percona Distribution for PostgreSQL 12.x as it enters end-of-life.

  • This release includes fixes for CVE-2024-10978 and for certain PostgreSQL extensions that break because they depend on the modified Application Binary Interface (ABI). These regressions were introduced in PostgreSQL 17.1, 16.5, 15.9, 14.14, 13.17, and 12.21. For this reason, the release of Percona Distribution for PostgreSQL 12.21 has been skipped.

  • Percona Distribution for PostgreSQL now statically links llvmjit.so library for Red Hat Enterprise Linux 8 and 9 and compatible derivatives. This resolves the conflict between the LLVM version required by Percona Distribution for PostgreSQL and the one supplied with the operating system. This also enables you to use the LLVM modules supplied with the operating system for other software you require.

Supplied third-party extensions

Review each extension’s release notes for What’s new, improvements, or bug fixes. The following is the list of extensions available in Percona Distribution for PostgreSQL.

The following is the list of extensions available in Percona Distribution for PostgreSQL.

Extension Version Description
etcd 3.5.16 A distributed, reliable key-value store for setting up high available Patroni clusters
HAProxy 2.8.11 a high-availability and load-balancing solution
Patroni 4.0.3 a HA (High Availability) solution for PostgreSQL
PgAudit 1.4.3 provides detailed session or object audit logging via the standard logging facility provided by PostgreSQL
pgAudit set_user 4.1.0 provides an additional layer of logging and control when unprivileged users must escalate themselves to superusers or object owner roles to perform needed maintenance tasks.
pgBackRest 2.54 a backup and restore solution for PostgreSQL
pgBadger 12.4 a fast PostgreSQL Log Analyzer.
pgbouncer 1.23.1 a lightweight connection pooler for PostgreSQL
pg_gather v28 an SQL script for running the diagnostics of the health of PostgreSQL cluster
pgpool2 4.5.4 a middleware between PostgreSQL server and client for high availability, connection pooling and load balancing.
pg_repack 1.5.1 rebuilds PostgreSQL database objects
pg_stat_monitor 2.1.0 collects and aggregates statistics for PostgreSQL and provides histogram information.
PostGIS 3.3.7 a spatial extension for PostgreSQL.
PostgreSQL Common 266 PostgreSQL database-cluster manager. It provides a structure under which multiple versions of PostgreSQL may be installed and/or multiple clusters maintained at one time.
wal2json 2.6 a PostgreSQL logical decoding JSON output plugin

Percona Distribution for PostgreSQL on Red Hat Enterprise Linux 8 and compatible derivatives also includes the following packages:

  • llvm 17.0.6 packages. This fixes compatibility issues with LLVM from upstream.
  • supplemental python3-etcd packages, which can be used for setting up Patroni clusters.

Percona Distribution for PostgreSQL is also shipped with the libpq library. It contains “a set of library functions that allow client programs to pass queries to the PostgreSQL backend server and to receive the results of these queries.”

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