I found an old post regarding the subject, where modifying the pg_constraint entry was recommended: http://archives.postgresql.org/pgsql-admin/2003-04/msg00339.php Is this still safe to do ? The pertinent docs don't say anything pro or contra: http://www.postgresql.org/docs/8.2/static/catalog-pg-constraint.html I need to rename a few constraints to keep our schema logically consistent. It would be of course nice to have an ALTER TABLE option to do it, but if updating pg_constraint is safe it would do it for now. Thanks, Csaba. ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend