From: Tom Lane <tgl@sss.pgh.pa.us>
To: chester c young <chestercyoung@yahoo.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: broken join optimization? (8.0)
Date: Wed, 26 Oct 2005 12:39:12 -0400
Message-ID: <7220.1130344752@sss.pgh.pa.us> (raw)
In-Reply-To: <20051026161257.3430.qmail@web54305.mail.yahoo.com>
References: <20051026161257.3430.qmail@web54305.mail.yahoo.com>
chester c young <chestercyoung@yahoo.com> writes:
> i think i misled: the goal is to retrieve _one_ row where the value of
> each attribute is null.
Er, what for? There's no data content in that, by definition. Why not
retrieve zero rows and look at the metadata anyway?
regards, tom lane
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To: pgsql-sql@postgresql.org
Cc: tgl@sss.pgh.pa.us, chestercyoung@yahoo.com
Subject: Re: broken join optimization? (8.0)
In-Reply-To: <7220.1130344752@sss.pgh.pa.us>
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