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From: Bruno Wolff III <bruno@wolff.to>
To: Prashant Dalal <pdalal@laborlogix.com>
Cc: pgsql-sql@postgresql.org
Subject: Re: NOT-IN CLAUSE
Date: Mon, 15 Dec 2003 13:28:47 -0600
Message-ID: <20031215192847.GA24755@wolff.to> (raw)
In-Reply-To: <NEBBKKKHLCPKJPDHMHMKCEEDLEAB.pdalal@laborlogix.com>
References: <NEBBKKKHLCPKJPDHMHMKCEEDLEAB.pdalal@laborlogix.com>

On Mon, Dec 15, 2003 at 12:14:17 -0500,
  Prashant Dalal <pdalal@laborlogix.com> wrote:
> Hi,
> 
> My Following select st. is running from last one day. I think the problem is
> NOT IN clause.
> Please suggest the alternative select clause.

NOT IN was especially slow up until Postgres 7.4. If using 7.4 is a problem
you can rewrite your query to use NOT EXISTS.



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