Re: partial indexed not being used.

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От Michael Fuhr
Тема Re: partial indexed not being used.
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Msg-id 20070212024245.GA11481@winnie.fuhr.org
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Ответ на Re: partial indexed not being used.  (Michael Fuhr <mike@fuhr.org>)
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On Sun, Feb 11, 2007 at 07:27:29PM -0700, Michael Fuhr wrote:
> If using the index would be slower than a sequential scan then you
> don't want the query to use the index.  Let's see how accurate the
> row count estimates are and whether using an index really would be
> faster -- please post the output of the following queries:

Also, what's your hardware configuration and what non-default
settings do you have in postgresql.conf?  In particular, how much
memory do you have and what values do you have for shared_buffers,
effective_cache_size, work_mem, and random_page_cost?

--
Michael Fuhr

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