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Re: Add min and max execute statement time in pg_stat_statement - Mailing list pgsql-hackers

From Peter Geoghegan
Subject Re: Add min and max execute statement time in pg_stat_statement
Date
Msg-id CAM3SWZSwsZMjHuKh1bsO695UA9-D_PBKBHJsdoa-BmGaQoWyCQ@mail.gmail.com
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In response to Re: Add min and max execute statement time in pg_stat_statement  (KONDO Mitsumasa <kondo.mitsumasa@lab.ntt.co.jp>)
Responses Re: Add min and max execute statement time in pg_stat_statement  (KONDO Mitsumasa <kondo.mitsumasa@lab.ntt.co.jp>)
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On Wed, Jan 22, 2014 at 5:28 PM, KONDO Mitsumasa
<kondo.mitsumasa@lab.ntt.co.jp> wrote:
> Oh, thanks to inform me. I think essential problem of my patch has bottle
> neck in sqrt() function and other division caluculation.

Well, that's a pretty easy theory to test. Just stop calling them (and
do something similar to what we do for current counter fields instead)
and see how much difference it makes.

-- 
Peter Geoghegan

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