Received: from maia.hub.org (maia-2.hub.org [200.46.204.251]) by mail.postgresql.org (Postfix) with ESMTP id E691A1337DE7 for ; Fri, 12 Nov 2010 12:41:45 -0400 (AST) Received: from mail.postgresql.org ([200.46.204.86]) by maia.hub.org (mx1.hub.org [200.46.204.251]) (amavisd-maia, port 10024) with ESMTP id 82351-01-5 for ; Fri, 12 Nov 2010 16:41:38 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from sss.pgh.pa.us (sss.pgh.pa.us [66.207.139.130]) by mail.postgresql.org (Postfix) with ESMTP id 92F751337E38 for ; Fri, 12 Nov 2010 12:29:23 -0400 (AST) Received: from sss2.sss.pgh.pa.us (tgl@localhost [127.0.0.1]) by sss.pgh.pa.us (8.14.2/8.14.2) with ESMTP id oACGSrTB011456; Fri, 12 Nov 2010 11:28:53 -0500 (EST) To: "Kyriacos Kyriacou" cc: "Thom Brown" , pgsql-performance@postgresql.org Subject: Re: MVCC performance issue In-reply-to: <8BCBF9DB739F034B87FE7C7D30EAE55C240D4BCA@hqex2k.francoudi.com> References: <8BCBF9DB739F034B87FE7C7D30EAE55C279F054F@hqex2k.francoudi.com> <8BCBF9DB739F034B87FE7C7D30EAE55C240D4BCA@hqex2k.francoudi.com> Comments: In-reply-to "Kyriacos Kyriacou" message dated "Fri, 12 Nov 2010 18:14:00 +0200" Date: Fri, 12 Nov 2010 11:28:53 -0500 Message-ID: <11455.1289579333@sss.pgh.pa.us> From: Tom Lane X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=-1.91 tagged_above=-10 required=5 tests=BAYES_00=-1.9, T_RP_MATCHES_RCVD=-0.01 X-Spam-Level: X-Archive-Number: 201011/202 X-Sequence-Number: 41226 "Kyriacos Kyriacou" writes: > We are still using PostgreSQL 8.2.4. In that case you don't have HOT updates, so it seems to me to be a little premature to be proposing a 100% rewrite of the system to fix your problems. regards, tom lane