Hello, I had a similar question some time ago, with an answer by Tom lane: http://archives.postgresql.org/pgsql-general/2012-03/msg00023.php best regards, Marc Mamin From: pgsql-general-owner@xxxxxxxxxxxxxx [mailto:pgsql-general-owner@xxxxxxxxxxxxxx] On Behalf Of Sahagian, David Using 9.1 Can somebody tell me the order in which the Unique Constraints of a table are checked, like when an INSERT is done ? It seems the the Primary is checked first, but what about the regular UCs ? Thanks, -dvs- |