X-Original-To: pgsql-docs-postgresql.org@localhost.postgresql.org Received: from localhost (unknown [200.46.204.144]) by svr1.postgresql.org (Postfix) with ESMTP id 975EA53471 for ; Tue, 12 Apr 2005 01:20:57 -0300 (ADT) Received: from svr1.postgresql.org ([200.46.204.71]) by localhost (av.hub.org [200.46.204.144]) (amavisd-new, port 10024) with ESMTP id 03342-10 for ; Tue, 12 Apr 2005 04:20:54 +0000 (GMT) Received: from wolff.to (wolff.to [66.93.249.74]) by svr1.postgresql.org (Postfix) with SMTP id 07969534FA for ; Tue, 12 Apr 2005 01:20:50 -0300 (ADT) Received: (qmail 32352 invoked by uid 500); 12 Apr 2005 04:40:01 -0000 Date: Mon, 11 Apr 2005 23:40:01 -0500 From: Bruno Wolff III To: pgsql-docs@postgresql.org Subject: Possible copy error in explain example Message-ID: <20050412044001.GA32308@wolff.to> Mail-Followup-To: Bruno Wolff III , pgsql-docs@postgresql.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.6i X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, hits=0.01 tagged_above=0 required=5 tests=AWL X-Spam-Level: X-Archive-Number: 200504/13 X-Sequence-Number: 2943 I was looking at: http://candle.pha.pa.us/main/writings/pgsql/sgml/performance-tips.html And noticed in the first example that it is claimed the cost estimate is 233 disk block reads. However, "233" doesn't appear in the explain output shown. I think that "233" is supposed to match the "333" in the explain output, but I am not 100% sure.