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From: Tom Lane <tgl@sss.pgh.pa.us>
To: J rg Holetschek <mail2holly@gmx.de>
Cc: pgsql-sql@postgresql.org
Subject: Re: CHECK clause doesn't work with CASE clause
Date: Thu, 27 Jun 2002 09:44:13 -0400
Message-ID: <25000.1025185453@sss.pgh.pa.us> (raw)
In-Reply-To: <afenai$2291$1@news.hub.org>
References: <afenai$2291$1@news.hub.org>

"Jörg Holetschek" <mail2holly@gmx.de> writes:
>                   CASE
>                      WHEN ((focus <> NULL) AND (epilepsy_class = 'f')) THEN
> TRUE

Try "focus IS NOT NULL".

			regards, tom lane

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