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From: Rod Taylor <rbt@rbt.ca>
To: Marc G. Fournier <scrappy@hub.org>
Cc: pgsql-sql@postgresql.org
Subject: Re: simple trigger question ...
Date: 03 Apr 2003 09:26:48 -0500
Message-ID: <1049380007.22629.14.camel@jester> (raw)
In-Reply-To: <20030403061142.V72033@hub.org>
References: <20030402223933.M71125@hub.org>
	<25296.1049341477@sss.pgh.pa.us>
	<20030403000605.U71125@hub.org>
	<25512.1049343373@sss.pgh.pa.us>
	<20030403002922.Y71125@hub.org>
	<25618.1049344429@sss.pgh.pa.us>
	<20030403061142.V72033@hub.org>

> 'K, that makes it workable ... final question (I hope!) ... RULEs vs
> TRIGGERs?  I ended up doing it as a RULE, since I could do it without a
> function ... but is there a reason why that is a Bad Idea?  Or in a case
> like this, it doesn't really matter?

Rules are per statement, not per row.

An INSERT INTO ... SELECT ... statement will cause a single execution of
the rule even if you insert several hundred rows.

-- 
Rod Taylor <rbt@rbt.ca>

PGP Key: http://www.rbt.ca/rbtpub.asc

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