Received: from localhost (maia-1.hub.org [200.46.204.191]) by postgresql.org (Postfix) with ESMTP id 4C58D9FB885 for ; Fri, 18 May 2007 17:19:20 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.191]) (amavisd-maia, port 10024) with ESMTP id 12577-05 for ; Fri, 18 May 2007 17:19:16 -0300 (ADT) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.4 Received: from ug-out-1314.google.com (ug-out-1314.google.com [66.249.92.168]) by postgresql.org (Postfix) with ESMTP id 44FA89FB87F for ; Fri, 18 May 2007 17:19:16 -0300 (ADT) Received: by ug-out-1314.google.com with SMTP id k3so479314ugf for ; Fri, 18 May 2007 13:19:14 -0700 (PDT) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:user-agent:mime-version:to:cc:subject:references:in-reply-to:content-type:content-transfer-encoding:sender; b=S724Q8ZlIp0+cSW3zz9IZF5Rbq0HTaY6U4AJSUnXKo6GOIxRtgD2YkeA5RtCDoR3QYM99ay7N+OwToPjIMq7bgAt+EBCkh2Eau2EkX1VWgWeWeNgd5EmVHiKGHtfUGHzhFQC2w1K5ddbxg2S//yiS6yAeNiNg3q6KR8ZQNYg1W4= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:user-agent:mime-version:to:cc:subject:references:in-reply-to:content-type:content-transfer-encoding:sender; b=OgUWLwSz1KuVPAzQmdLxA1hnyJLoE+zmJJ+x9eMYuWPx2CXS+0Trm2FfcItMTWgN2NAjak1xBhrUVXjuAFjnOWTDc3Eu33ahxleou0JFGJrSzTO/1GsgvBZnefwfe6FDBxRs34DG9Oy7ZP4DjJDzdvxde04+DkweNzwVNCUnxRY= Received: by 10.82.145.7 with SMTP id s7mr3588555bud.1179519554639; Fri, 18 May 2007 13:19:14 -0700 (PDT) Received: from ?192.168.1.34? ( [86.27.73.11]) by mx.google.com with ESMTP id c22sm965812ika.2007.05.18.13.19.10; Fri, 18 May 2007 13:19:13 -0700 (PDT) Message-ID: <464E0A34.6030802@enterprisedb.com> Date: Fri, 18 May 2007 21:19:00 +0100 From: Heikki Linnakangas User-Agent: Icedove 1.5.0.10 (X11/20070329) MIME-Version: 1.0 To: Gene Hart CC: pgsql-performance@postgresql.org Subject: Re: choosing fillfactor References: <464DF71C.5010805@gmail.com> In-Reply-To: <464DF71C.5010805@gmail.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200705/346 X-Sequence-Number: 24736 Gene Hart wrote: > I've tried searching the documentation to answer this question but could > not find anything. When trying to choose the optimal fillfactor for an > index, what is important the number of times the row is updated or the > column indexed upon is updated? In my case each row is updated on > average about 5 times but for some of the columns with indexes don't > change after insertion ever. thanks for any advice It's the number of times the row is updated, regardless of which columns are changed. -- Heikki Linnakangas EnterpriseDB http://www.enterprisedb.com