Re: Any plans on allowing user-defined triggers to be

From: Stephan Szabo <sszabo(at)megazone(dot)bigpanda(dot)com>
To: Mike Mascari <mascarm(at)mascari(dot)com>
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: Any plans on allowing user-defined triggers to be
Date: 2004-10-26 14:55:17
Message-ID: 20041026075423.G93326@megazone.bigpanda.com
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On Tue, 26 Oct 2004, Mike Mascari wrote:

> Stephan Szabo wrote:
> > On Tue, 26 Oct 2004, Mike Mascari wrote:
> >
> >
> >>I'd like to ensure that the creation of a department also implies the
> >>creation of two to eight projects; no more, no less:
>
> >>Is there no way to achieve the above stated goal in the server? Must I
> >>rely on the application to enforce consistency?
> >
> >
> > Well. It's not exactly meant to be a user facing feature, but check out
> > CREATE CONSTRAINT TRIGGER.
>
> Thanks, Stephan!
>
> I read the disclaimer "It is not intended for general use" but am
> curious as to why it isn't a user-facing feature? Is it a function of
> just exposing a cleaner SQL interface, or is it a function of the
> trigger queue having been written after user-defined triggers, or is
> there some philosophical argument against allowing user-definable
> triggers to be deferred?

I should also add that it's also not likely to get upgraded to handle new
trigger features (for example statement triggers) quickly unless someone
wants to step up and do so.

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