From: Kevin Grittner <Kevin.Grittner@wicourts.gov>
To: pgsql-performance@postgresql.org <pgsql-performance@postgresql.org>
To: Shawn <postgres@xmtservices.net>
Subject: Re: Slow Query
Date: Sun, 02 Sep 2007 10:49:09 -0500
Message-ID: <46DA9522.EE98.0025.0@wicourts.gov> (raw)
In-Reply-To: <20070901102947.0c0a50a3@boffin.xmtservices.net>
References: <20070901102947.0c0a50a3@boffin.xmtservices.net>
>>> On Sat, Sep 1, 2007 at 12:29 PM, in message
<20070901102947.0c0a50a3@boffin.xmtservices.net>, Shawn
<postgres@xmtservices.net> wrote:
> update shawns_data set alias = null;
> Even after VACUUM this simple line takes 35 sec to complete.
Would any rows already have a null alias when you run this?
If so, try adding 'where alias is not null' to the query.
-Kevin
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To: pgsql-performance@postgresql.org
Cc: Kevin.Grittner@wicourts.gov, postgres@xmtservices.net
Subject: Re: Slow Query
In-Reply-To: <46DA9522.EE98.0025.0@wicourts.gov>
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