On Mon, Mar 19, 2007 at 07:08:41PM +0100, hubert depesz lubaczewski wrote: > On 3/19/07, Jeff Davis <pgsql@xxxxxxxxxxx> wrote: > >You can use an AFTER trigger instead of a CHECK constraint (but that may > >have a performance impact - test for your application). > > are you sure you meant AFTER? why? generally data-checks should be in > before triggers. i guess. In an AFTER trigger you can be sure you're seeing what actually got inserted. In a BEFORE trigger other triggers after you could still modify the data... Have a nice day, -- Martijn van Oosterhout <kleptog@xxxxxxxxx> http://svana.org/kleptog/ > From each according to his ability. To each according to his ability to litigate.
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