Re: My indexes aren't being used (according to EXPLAIN)

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От Andrew Sullivan
Тема Re: My indexes aren't being used (according to EXPLAIN)
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Msg-id 20031201140410.GC4107@libertyrms.info
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Ответ на My indexes aren't being used (according to EXPLAIN)  (Erik Norvelle <erik@norvelle.net>)
Ответы Re: My indexes aren't being used (according to EXPLAIN)  (Erik Norvelle <erik@norvelle.net>)
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On Mon, Dec 01, 2003 at 02:40:30PM +0100, Erik Norvelle wrote:
>
> it=> explain select * from indethom where clavis < 25;

What's the percentage of the table where clavis < 25?  Have you
ANALYSEd recently?  What does the pg_stats view tell you about this
table?

> Feel free to point me to any FAQ or previous message that already
> answers this question.  Thanks in advance!

This is a pretty common sort of problem.  See the archives of this
list for several fairly recent discussions of these sorts of
problems.

A

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