Re: Optimizing select count query which often takes over 10 seconds

From: Kevin Grittner <kgrittn(at)ymail(dot)com>
To: Alexander Farber <alexander(dot)farber(at)gmail(dot)com>
Cc: pgsql-general <pgsql-general(at)postgresql(dot)org>
Subject: Re: Optimizing select count query which often takes over 10 seconds
Date: 2013-01-29 23:09:26
Message-ID: 1359500966.5795.YahooMailNeo@web162905.mail.bf1.yahoo.com
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Alexander Farber <alexander(dot)farber(at)gmail(dot)com> wrote:

> update pref_users set medals = 0;
> UPDATE 223456

You're probably going to like your performance a lot better if you
modify that to:

update pref_users set medals = 0 where medals <> 0;

-Kevin

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