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Re: *_collapse_limit, geqo_threshold - Mailing list pgsql-hackers

From Tom Lane
Subject Re: *_collapse_limit, geqo_threshold
Date
Msg-id 7544.1246981250@sss.pgh.pa.us
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In response to Re: *_collapse_limit, geqo_threshold  (Andres Freund <andres@anarazel.de>)
Responses Re: *_collapse_limit, geqo_threshold
Re: *_collapse_limit, geqo_threshold - example schema
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Andres Freund <andres@anarazel.de> writes:
> I cannot reasonably plan some queries with join_collapse_limit set to 20. At 
> least not without setting the geqo limit very low and a geqo_effort to a low 
> value.
> So I would definitely not agree that removing j_c_l is a good idea. 

Can you show some specific examples?  All of this discussion seems like
speculation in a vacuum ...
        regards, tom lane

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