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From: Josh Berkus <josh@agliodbs.com>
Organization: Aglio Database Solutions
To: Robert Treat <xzilla@users.sourceforge.net>,
	"pgsql-general@postgresql.org" <pgsql-general@postgresql.org>,
	pgsql-sql@postgresql.org
Subject: Re: [SQL] rewriting values with before trigger
Date: Thu, 24 Apr 2003 09:39:54 -0700
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Robert,

> Is there anyway to do be able to change the '' into NULL before data
> validity is checked with a trigger?

What about using a RULE instead?

--=20
Josh Berkus
Aglio Database Solutions
San Francisco