Re: Query optimization problem - Mailing list pgsql-hackers

From Dimitri Fontaine
Subject Re: Query optimization problem
Date
Msg-id 878w4vlvsz.fsf@hi-media-techno.com
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In response to Re: Query optimization problem  (Robert Haas <robertmhaas@gmail.com>)
Responses Re: Query optimization problem
List pgsql-hackers
Robert Haas <robertmhaas@gmail.com> writes:
>  But here you want to have different paths for
> the same relation that generate *different output*, and the planner
> doesn't understand that concept.

Sorry? I though what Equivalence Class provides is the "proving" that
using this qualification or another will *not* affect the output.
-- 
dim


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