Hi, You can use a trigger before insert and a pl/pgsql function that goes:
BEGIN UPDATE table SET ... WHERE pk=NEW.pk IF FOUND THEN RETURN NULL; ELSE RETURN NEW; END IF; END; Jacques. At 19:36 27/09/2009, Robert Haas wrote:
Sometimes when I've needed to do this I've written a PL/pgsql function that tries the insert and then fails over to an UPDATE if the INSERT fails due to a unique-violation. I'm not sure that's 100% robust either, though, unless using serializable mode. ...Robert -- Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-bugs
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