# Percona Distribution for PostgreSQL 11.17 (2022-09-08)


| Release date:     | September 8, 2022      |
|:------------------|:----------------------|
| **Installation**: | [Installing Percona Distribution for PostgreSQL](installing.md) |

Percona Distribution for PostgreSQL is a collection of tools to assist you in managing PostgreSQL. Percona Distribution for PostgreSQL
installs PostgreSQL and complements it by a selection of extensions that
enable solving essential practical tasks efficiently.


This release is based on [PostgreSQL
11.17](https://www.postgresql.org/docs/release/11.17/). The set of extensions supplied with Percona Distribution for PostgreSQL now includes the [HAProxy](http://www.haproxy.org/) - a high-availability and load-balancing solution.

| Extension           | Version        | Description                  |
| ------------------- | -------------- | ---------------------------- |
| [Patroni](https://patroni.readthedocs.io/en/latest/) | 2.1.4 | a HA (High Availability) solution for PostgreSQL |
| [PgAudit](https://www.pgaudit.org/)             | 1.3.4   | provides detailed session or object audit logging via the standard logging facility provided by PostgreSQL                |
| [pgAudit set_user](https://github.com/pgaudit/set_user)| 3.0.0 | provides an additional layer of logging and control when unprivileged users must escalate themselves to superusers or object owner roles in order to perform needed maintenance tasks.|
| [pgBackRest](https://pgbackrest.org/)           | 2.40    | a backup and restore solution for PostgreSQL       |
|[pgBadger](https://github.com/darold/pgbadger)   | 11.8     | a fast PostgreSQL Log Analyzer.|
|[PgBouncer](https://www.pgbouncer.org/)          |1.17.0    | a lightweight connection pooler for PostgreSQL|
| [pg_repack](https://github.com/reorg/pg_repack) | 1.4.7   | rebuilds PostgreSQL database objects           |
| [pg_stat_monitor](https://github.com/percona/pg_stat_monitor)                                         |1.1.0 | collects and aggregates statistics for PostgreSQL and provides histogram information.|
| [PostgreSQL Common](https://packages.debian.org/sid/percona-postgresql-common)| 241 | 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](https://github.com/eulerto/wal2json)  |2.4       | a PostgreSQL logical decoding JSON output plugin|
|[HAProxy](http://www.haproxy.org/) | 2.5.6 | a high-availability and load-balancing solution |

Percona Distribution for PostgreSQL also includes the following packages:

- `llvm` 12.0.1 packages for Red Hat Enterprise Linux 8  and derivatives. This fixes compatibility issues with LLVM from upstream.
- supplemental ETCD packages which can be used for setting up Patroni clusters. These packages are available for the following operating systems:

|  Operating System   |Package               | Version | Description   |
| ------------------- | ---------------------| --------|---------------|
| RHEL 7             |`python3-python-etcd` | 0.4.3   | A Python client for ETCD     |
| RHEL 8             | `etcd`               | 3.3.11  | A consistent, distributed key-value store|
|                     | `python3-python-etcd`| 0.4.3   | A Python client for ETCD     |


Percona Distribution for PostgreSQL is also shipped with the
[libpq](https://www.postgresql.org/docs/11/libpq.html) 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."