MediaWiki 1.23.15, PostgresSQL 9.5.4, Interwiki 2.3 20140327
Attempting to edit existing Interwiki data to update change in URL, but always fails. Error logs show: relation "ignore" does not exist. Example: "UPDATE /* SpecialInterwiki::doSubmit first.last */ IGNORE "interwiki" SET"...etc...
Googling suggests Postgresql does not support the IGNORE that MySQL has. Apparently the MediaWiki core DatabasePostgres.php does not account for this. Found someone's attempt at an update to the core file, but very wary of it from a compatibility standpoint (no version information specified). Is there a patch or other way (aside from updating DB manually) to get Interwiki to work with the table in Postgresql?