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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Jens Reufsteck <jens.reufsteck@staufenbiel.de>
Cc: pgsql-performance@postgresql.org
Subject: Re: Anti join miscalculates row number?
Date: Wed, 26 Oct 2011 10:45:29 -0400
Message-ID: <12845.1319640329@sss.pgh.pa.us> (raw)
In-Reply-To: <000d01cc93c9$5d3a8e90$17afabb0$@reufsteck@staufenbiel.de>
References: <000d01cc93c9$5d3a8e90$17afabb0$@reufsteck@staufenbiel.de>

"Jens Reufsteck" <jens.reufsteck@staufenbiel.de> writes:
> I’ve got a lengthy query, that doesn't finish in reasonable time (i.e.
> 10min+). I suspect, that the query optimizer miscalculates the number of
> rows for part of the query.
> ...
> We're using postgres 9.0.4.

Try 9.0.5.  There was a bug fixed in this area.

			regards, tom lane

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