| From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
|---|---|
| To: | "Froggy / Froggy Corp(dot)" <froggy(at)froggycorp(dot)com> |
| Cc: | "pgsql-general(at)postgresql(dot)org General" <pgsql-general(at)postgresql(dot)org> |
| Subject: | Re: Using of GeQo |
| Date: | 2004-04-19 18:36:27 |
| Message-ID: | 200404191836.i3JIaRP11518@candle.pha.pa.us |
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| Thread: | |
| Lists: | pgsql-general |
Froggy / Froggy Corp. wrote:
> Hello (again),
>
> I read some documentation about tuning postgresql.conf but i didn't
> find information clearly about how to use GeQo. It seems to help planner
> but using a lot of CPU, and is usefull only for big join.
> Per default, geqo = true, but in which case, geqo is usefull and in
> which case, i will lost a lot of CPU ?
> If someone have some documentation or help about that.
Have you read the GEQO section in the docs?
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
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