Re: Fixed Cardinality estimation with equality predicates between column of the same table

From: Josh Berkus <josh(at)agliodbs(dot)com>
To: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Fixed Cardinality estimation with equality predicates between column of the same table
Date: 2013-06-21 22:34:28
Message-ID: 51C4D4F4.2020108@agliodbs.com
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On 06/21/2013 02:33 PM, desmodemone wrote:
> Hi all,
> I see a strange behavior ( for me ) on 9.2 (but seems the same on
> 9.1 and 9.3) of the optimizer on query like that :
>

Matteo, I just posted this on -performance. See Tom's answer.

--
Josh Berkus
PostgreSQL Experts Inc.
http://pgexperts.com

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