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(at)postgresql(dot)org
[mailto:pgsql-general-owner(at)postgresql(dot)org] On Behalf Of Sahagian, David
Sent: Dienstag, 28. August 2012 15:46
To: pgsql-general(at)postgresql(dot)org
Subject: [GENERAL] order of checking the unique constraints
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-