X-Original-To: pgsql-performance-postgresql.org@postgresql.org Received: from localhost (wm.hub.org [200.46.204.128]) by postgresql.org (Postfix) with ESMTP id 610049FB209 for ; Wed, 23 Aug 2006 10:24:22 -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 34081-08 for ; Wed, 23 Aug 2006 13:23:59 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey- Received: from webmail.enterprisedb.com (edb04.managed.contegix.com [63.246.7.176]) by postgresql.org (Postfix) with ESMTP id A1D919FB25F for ; Wed, 23 Aug 2006 10:23:59 -0300 (ADT) Received: from [192.168.0.20] (unknown [62.232.55.118]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by webmail.enterprisedb.com (Postfix) with ESMTP id 95ECDA24A8D; Wed, 23 Aug 2006 08:23:57 -0500 (CDT) Message-ID: <44EC56F5.50704@enterprisedb.com> Date: Wed, 23 Aug 2006 14:24:05 +0100 From: Heikki Linnakangas User-Agent: Thunderbird 1.5.0.4 (X11/20060713) MIME-Version: 1.0 To: Markus Schaber , pgsql-performance@postgresql.org Subject: Re: VACUUM FULL needed sometimes to prevent transaction References: <44EB48A9.7030704@geizhals.at> <1156284025.15743.104.camel@dogma.v10.wvs> <44EC4F2E.1010304@logix-tt.com> In-Reply-To: <44EC4F2E.1010304@logix-tt.com> Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=3.951 tagged_above=0 required=5 tests=FORGED_RCVD_HELO, SPF_HELO_SOFTFAIL, SPF_SOFTFAIL X-Spam-Level: *** X-Archive-Number: 200608/375 X-Sequence-Number: 20560 Markus Schaber wrote: > I just asked myself whether a 2-phase-commit transaction that was > prepared, but never committed, can block vacuuming and TID recycling. > Yes. -- Heikki Linnakangas EnterpriseDB http://www.enterprisedb.com