Re: Comparitive UPDATE speed

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От Andrew Sullivan
Тема Re: Comparitive UPDATE speed
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Msg-id 20021004142523.M949@mail.libertyrms.com
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Ответ на Re: Comparitive UPDATE speed  (Josh Berkus <josh@agliodbs.com>)
Ответы Re: Comparitive UPDATE speed  (Josh Berkus <josh@agliodbs.com>)
Список pgsql-performance
On Fri, Oct 04, 2002 at 11:13:09AM -0700, Josh Berkus wrote:
>
> Andrew,
>
> > Have you run this with EXPLAIN ANALYSE?  It will actually perform the
> > necessary steps, so it will reveal if the planner is getting
> > something wrong.
>
> Here it is:

Oops, sorry.  What if you force the index use here?  Just because the
planner thinks that's more expensive doesn't mean that it is.

A

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