The Nuke extension doesn't work with postgres (https:// bugzilla.wikimedia.org/show_bug.cgi?id=23600). Is there a revision that contains a version that does? Right now (for 1.13.2) the snapshot returned by the Nuke extension page is: r37906. This produces the error given in the bug ticket.
Regards,
wikitech-l@lists.wikimedia.org