Received: from localhost (wm.hub.org [200.46.204.128]) by postgresql.org (Postfix) with ESMTP id 2EFC29FA103 for ; Wed, 4 Oct 2006 09:38:27 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.128]) (amavisd-new, port 10024) with ESMTP id 51260-01 for ; Wed, 4 Oct 2006 12:38:07 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey- Received: from globalrelay.com (mail1.globalrelay.com [216.18.71.77]) by postgresql.org (Postfix) with ESMTP id ED2429F9F0F for ; Wed, 4 Oct 2006 09:38:06 -0300 (ADT) X-Virus-Scanned: Scanned by GRC-AntiVirus Gateway X-GR-Acctd: YES Received: from [67.90.96.2] (HELO DaveEMachine) by globalrelay.com (CommuniGate Pro SMTP 4.2.3) with ESMTP id 107509273; Wed, 04 Oct 2006 05:38:02 -0700 From: "Dave Dutcher" To: "'Adnan DURSUN'" , Subject: Re: PostgreSQL Caching Date: Wed, 4 Oct 2006 07:38:00 -0500 Message-ID: <008701c6e7b1$ee763630$8300a8c0@tridecap.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2962 In-Reply-To: X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=0 tagged_above=0 required=5 tests= X-Spam-Level: X-Archive-Number: 200610/81 X-Sequence-Number: 21210 > -----Original Message----- > From: pgsql-performance-owner@postgresql.org > [mailto:pgsql-performance-owner@postgresql.org] On Behalf Of > Adnan DURSUN > i want to be can read an execution plan when > i look at it. > So, is there any doc about how it should be read ? You are asking how to read the output from EXPLAIN? This page is a good place to start: http://www.postgresql.org/docs/8.1/interactive/performance-tips.html