Re: gprof SELECT COUNT(*) results

From: "Qingqing Zhou" <zhouqq(at)cs(dot)toronto(dot)edu>
To: pgsql-hackers(at)postgresql(dot)org
Subject: Re: gprof SELECT COUNT(*) results
Date: 2005-11-26 08:13:33
Message-ID: dm95dp$2d4k$1@news.hub.org
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"Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote
>
> I plan to take a look at it soon.
>

"Stand corrected"[Merlin]! In-memory "SELECT COUNT(*)" doubles the
performance due to my test.

- before -
1.56 s

- now -
0.72 s

Regards,
Qingqing

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