Re: partition queries hitting all partitions even though check key is specified

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От Joshua D. Drake
Тема Re: partition queries hitting all partitions even though check key is specified
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Msg-id 1278993648.22491.7.camel@jd-desktop.unknown.charter.com
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Ответ на Re: partition queries hitting all partitions even though check key is specified  (Josh Berkus <josh@agliodbs.com>)
Список pgsql-performance
On Mon, 2010-07-12 at 22:01 -0500, Josh Berkus wrote:
> On 9/2/09 10:05 AM, Kevin Kempter wrote:
> > On Wednesday 02 September 2009 09:02:27 Scott Marlowe wrote:
> >> On Wed, Sep 2, 2009 at 8:52 AM, Kevin Kempter<kevink@consistentstate.com>
> > wrote:
> >>> Hi all;
> >>>
> >>> I cant figure out why we're scanning all of our partitions.
>
> I don't think extract() is immutable, which would pretty much invalidate
> your check constraints as far as CE is concerned.

Correct.

Joshua D. Drake


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