X-Original-To: pgsql-performance-postgresql.org@localhost.postgresql.org Received: from localhost (mx1.hub.org [200.46.208.251]) by postgresql.org (Postfix) with ESMTP id 7C03C11F60E3 for ; Sat, 29 Apr 2006 08:29:41 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.208.251]) (amavisd-new, port 10024) with ESMTP id 31078-01 for ; Sat, 29 Apr 2006 08:29:35 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey- Received: from vms044pub.verizon.net (vms044pub.verizon.net [206.46.252.44]) by postgresql.org (Postfix) with ESMTP id A8F9011F61C6 for ; Sat, 29 Apr 2006 08:29:33 -0300 (ADT) Received: from osgiliath.mathom.us ([70.108.132.172]) by vms044.mailsrvcs.net (Sun Java System Messaging Server 6.2-4.02 (built Sep 9 2005)) with ESMTPA id <0IYH00332EL6BRX2@vms044.mailsrvcs.net> for pgsql-performance@postgresql.org; Sat, 29 Apr 2006 06:29:31 -0500 (CDT) Received: from localhost (localhost [127.0.0.1]) by osgiliath.mathom.us (Postfix) with ESMTP id A11E56E6BF for ; Sat, 29 Apr 2006 07:29:29 -0400 (EDT) Received: from osgiliath.mathom.us ([127.0.0.1]) by localhost (osgiliath.home.mathom.us [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 04636-04-2 for ; Sat, 29 Apr 2006 07:29:29 -0400 (EDT) Received: by osgiliath.mathom.us (Postfix, from userid 1000) id DB4C06EC80; Sat, 29 Apr 2006 07:29:28 -0400 (EDT) Date: Sat, 29 Apr 2006 07:29:28 -0400 From: Michael Stone Subject: Re: Why so slow? In-reply-to: <6.2.1.2.0.20060429110036.02c01b98@localhost> To: pgsql-performance@postgresql.org Mail-followup-to: pgsql-performance@postgresql.org Message-id: <20060429112926.GJ31328@mathom.us> MIME-version: 1.0 Content-type: text/plain; charset=us-ascii; format=flowed Content-disposition: inline X-Pgp-Fingerprint: 53 FF 38 00 E7 DD 0A 9C 84 52 84 C5 EE DF 7C 88 X-Virus-Scanned: Debian amavisd-new at mathom.us References: <20060428145842.GI97354@pervasive.com> <20060428190005.GA15689@wolff.to> <6.2.1.2.0.20060429084119.05290438@localhost> <19397.1146278368@sss.pgh.pa.us> <6.2.1.2.0.20060429110036.02c01b98@localhost> User-Agent: Mutt/1.5.11+cvs20060403 X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200604/688 X-Sequence-Number: 18772 On Sat, Apr 29, 2006 at 11:18:10AM +0800, K C Lau wrote: >I apologize for simplistic ideas again. I presume that the equivalent tuple >header information is not maintained for index entries. What if they are, >probably only for the most commonly used index types to allow recycling >where possible? Alternatively, you could just run vacuum... Mike Stone