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From: Jim C. Nasby <jim@nasby.net>
To: Kyle <kyle@ccidomain.com>
Cc: Forum - PostGreSQL General <pgsql-general@postgresql.org>
Subject: Re: [SQL] Best way to delete time stamped data?
Date: Sun, 4 May 2003 11:30:29 -0500
Message-ID: <20030504113029.W66185@flake.decibel.org> (raw)
In-Reply-To: <3EB510F1.8090708@ccidomain.com>
References: <3EB2EBF0.8010003@ccidomain.com>
	<200305021619.41879.josh@agliodbs.com>
	<3EB510F1.8090708@ccidomain.com>

On Sun, May 04, 2003 at 09:09:05AM -0400, Kyle wrote:
> Josh,
> 
> Thanks, even my boss can read the new statement:
> 
> DELETE FROM ONLY richtable WHERE age(trxdate) > '90 days';
 
Just remember that that query won't use any index on trxdate, because
it has to calculate 'age(trxdate)' for every value in the table.
-- 
Jim C. Nasby (aka Decibel!)                    jim@nasby.net
Member: Triangle Fraternity, Sports Car Club of America
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