Re: Cursors and different settings for default_statistics_target

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От Tom Lane
Тема Re: Cursors and different settings for default_statistics_target
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Msg-id 9999.1207068123@sss.pgh.pa.us
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Ответ на Re: Cursors and different settings for default_statistics_target  ("Hell, Robert" <Robert.Hell@fabasoft.com>)
Ответы Re: Cursors and different settings for default_statistics_target  ("Steinar H. Gunderson" <sgunderson@bigfoot.com>)
Re: Cursors and different settings for default_statistics_target  ("Hell, Robert" <Robert.Hell@fabasoft.com>)
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"Hell, Robert" <Robert.Hell@fabasoft.com> writes:
> That's CURSOR_OPT_FAST_PLAN and isn't it? Our application reads the full
> results of most cursors.

Just out of curiosity, why use a cursor at all then?  But anyway, you
might want to consider running a custom build with a higher setting for
tuple_fraction for OPT_FAST_PLAN (look into planner.c).  I've
occasionally thought about exposing that as a GUC parameter, but
never gotten motivated to do it.

            regards, tom lane

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