On Tue, Feb 22, 2011 at 1:03 AM, ivan_14_32 <ivan_14...@mail.ru> wrote: > Hi! > I trying to create rule for update notifing: > > CREATE OR REPLACE RULE "ttt_NotifyU" AS > ON UPDATE TO "ttt" DO > NOTIFY "ttt", '88'; > this work. > > But this > CREATE OR REPLACE RULE "ttt_NotifyU" AS > ON UPDATE TO "ttt" DO > NOTIFY "ttt", NEW."id"; > don't (syntax error), > NOTIFY "ttt", CAST(NEW."id" as text) > too. > > Q: How can I send tuple id (integer primary key) via notify using Rule? > Target is erasing deprecated tuples from application's cache.
why use a rule here and not a trigger? triggers might be a bit more verbose to right but explicit rules have and endless list of gotchas and should be avoided unless you have a really good reason not to. merlin -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
