- /**
- * @param LBFactory $lbFactory
- * @param string $dbType 'mysql', 'sqlite', etc.
- * @internal For use with service wiring
- */
- public static function setSchemaAliases( LBFactory $lbFactory, $dbType ) {
- if ( $dbType === 'mysql' ) {
- /**
- * When SQLite indexes were introduced in r45764, it was noted that
- * SQLite requires index names to be unique within the whole database,
- * not just within a schema. As discussed in CR r45819, to avoid the
- * need for a schema change on existing installations, the indexes
- * were implicitly mapped from the new names to the old names.
- *
- * This mapping can be removed if DB patches are introduced to alter
- * the relevant tables in existing installations. Note that because
- * this index mapping applies to table creation, even new installations
- * of MySQL have the old names (except for installations created during
- * a period where this mapping was inappropriately removed, see
- * T154872).
- */
- $lbFactory->setIndexAliases( [
- 'ar_usertext_timestamp' => 'usertext_timestamp',
- 'un_user_id' => 'user_id',
- 'un_user_ip' => 'user_ip',
- ] );
- }
- }
-