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

From Dimitri Fontaine
Subject Re: *_collapse_limit, geqo_threshold
Date
Msg-id 705D1702-857C-4DF7-A60E-4D50A283DF5C@hi-media.com
Whole thread Raw
In response to Re: *_collapse_limit, geqo_threshold  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-hackers
Le 7 juil. 09 à 21:45, Tom Lane a écrit :
> Dimitri Fontaine <dfontaine@hi-media.com> writes:
>> Another idea would be to have more complex metrics for deciding when
>> to run geqo
>
> Pointless, since GEQO is only concerned with examining alternative
> join
> orderings.  I see no reason whatever to think that number-of-relations
> isn't the correct variable to test to decide whether to use it.

Oh. It seems I prefer showing my ignorance rather than learning enough
first. Writing mails is so much easier...

Sorry for the noise,
--
dim

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