X-Original-To: pgsql-performance-postgresql.org@localhost.postgresql.org Received: from localhost (av.hub.org [200.46.204.144]) by postgresql.org (Postfix) with ESMTP id 871199DCCC7 for ; Mon, 13 Mar 2006 11:10:00 -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 64101-08 for ; Mon, 13 Mar 2006 11:10:02 -0400 (AST) X-Greylist: from auto-whitelisted by SQLgrey- Received: from mx2.surnet.cl (mx2.surnet.cl [216.155.73.181]) by postgresql.org (Postfix) with ESMTP id 54E449DC94A for ; Mon, 13 Mar 2006 11:09:44 -0400 (AST) Received: from unknown (HELO cluster.surnet.cl) ([216.155.73.165]) by mx2.surnet.cl with ESMTP; 13 Mar 2006 11:09:49 -0400 X-IronPort-AV: i="3.99,385,1131332400"; d="scan'208"; a="36177132:sNHT50364784" Received: from alvh.no-ip.org (201.221.200.21) by cluster.surnet.cl (7.0.043) (authenticated as alvherre@surnet.cl) id 43A978FD00A276E1; Mon, 13 Mar 2006 11:09:49 -0400 Received: by alvh.no-ip.org (Postfix, from userid 1000) id 3E6ACC3A2BE; Mon, 13 Mar 2006 11:09:49 -0400 (CLT) Date: Mon, 13 Mar 2006 11:09:49 -0400 From: Alvaro Herrera To: "Craig A. James" Cc: pgsql-performance@postgresql.org Subject: Re: No vacuum for insert-only database? Message-ID: <20060313150949.GK8274@surnet.cl> Mail-Followup-To: "Craig A. James" , pgsql-performance@postgresql.org References: <44158989.6020103@modgraph-usa.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <44158989.6020103@modgraph-usa.com> User-Agent: Mutt/1.5.11+cvs20060126 X-Virus-Scanned: by amavisd-new at hub.org X-Spam-Status: No, score=1.561 required=5 tests=[AWL=-0.358, DNS_FROM_RFC_ABUSE=0.479, DNS_FROM_RFC_POST=1.44] X-Spam-Score: 1.561 X-Spam-Level: * X-Archive-Number: 200603/163 X-Sequence-Number: 17600 Craig A. James wrote: > If I only insert data into a table, never update or delete, then I should > never have to vacuum it. Is that correct? You still need to vacuum eventually, to avoid transaction Id wraparound issues. But not as often. -- Alvaro Herrera http://www.CommandPrompt.com/ The PostgreSQL Company - Command Prompt, Inc.