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

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.


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