From mediawiki.org
This page is a translated version of the page Manual:PostgreSQL and the translation is 11% complete.

Účelem této stránky je shromažďovat informace a zkušenosti s provozováním MediaWiki na PostgreSQL.

MediaWiki supports PostgreSQL since 1.7, but please note that this is second-class support, and you may likely run into some bugs. The database most commonly used with MediaWiki is MySQL . See Phabricator for a list of issues. MediaWiki requires PostgreSQL 10.0 or later, and PG database support enabled in PHP.

Most of the common maintenance scripts work with PostgreSQL; however, some of the more obscure ones might have problems.

Is PostgreSQL a good choice for MediaWiki?

Wikimedia uses MariaDB so MediaWiki gets more testing on MariaDB than PostgreSQL. While support for PostgreSQL is maintained by volunteers, most core functionality is working.

MediaWiki database migration

The best is to migrate only XML-content and filesystem images. See simple complete terminal steps at https://stackoverflow.com/a/8771896/287948

From MySQL to PostgreSQL

dumpBackup.php and importDump.php could be used for this.

From PostgreSQL to MySQL

This is generally not recommended as converting from Postgres data types back to MySQL is not as simple an operation as the reverse.

There are, however, some scripts which may work.