X-Original-To: pgsql-hackers-postgresql.org@localhost.postgresql.org Received: from localhost (av.hub.org [200.46.204.144]) by postgresql.org (Postfix) with ESMTP id 3C4EC9DCA1B; Tue, 28 Feb 2006 13:55:44 -0400 (AST) Received: from postgresql.org ([200.46.204.71]) by localhost (av.hub.org [200.46.204.144]) (amavisd-new, port 10024) with ESMTP id 75797-07; Tue, 28 Feb 2006 13:55:43 -0400 (AST) X-Greylist: from auto-whitelisted by SQLgrey- X-Greylist: from auto-whitelisted by SQLgrey- Received: from gwmta.wicourts.gov (gwmta.wicourts.gov [165.219.244.99]) by postgresql.org (Postfix) with ESMTP id 742E69DC876; Tue, 28 Feb 2006 13:55:41 -0400 (AST) Received: from Courts-MTA by gwmta.wicourts.gov with Novell_GroupWise; Tue, 28 Feb 2006 11:55:41 -0600 Message-Id: <44043A34.EE98.0025.0@wicourts.gov> X-Mailer: Novell GroupWise Internet Agent 7.0 Date: Tue, 28 Feb 2006 11:55:32 -0600 From: "Kevin Grittner" To: "Jim C. Nasby" , "Tom Lane" , "Kevin Grittner" Cc: , Subject: Re: [PERFORM] temporary indexes References: <44041B68.EE98.0025.0@wicourts.gov> <20060228164515.GS82012@pervasive.com> <20060228164515.GS82012@pervasive.com> <16076.1141146348@sss.pgh.pa.us> <440435BC.EE98.0025.0@wicourts.gov> In-Reply-To: <440435BC.EE98.0025.0@wicourts.gov> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Content-Disposition: inline X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, score=0.077 required=5 tests=[AWL=0.077] X-Spam-Score: 0.077 X-Spam-Level: X-Archive-Number: 200602/1224 X-Sequence-Number: 80362 >>> On Tue, Feb 28, 2006 at 11:36 am, in message <440435BC.EE98.0025.0@wicourts.gov>, "Kevin Grittner" > Also, EXISTS works in situations where > you need to compare on multiple columns, so it is useful in many > situations where EXISTS or MIN/MAX techniques just don't work. Sorry. That should have read: EXISTS works in situations where you need to compare on multiple columns, so it is useful in many situations where IN or MIN/MAX techniques just don't work.