Received: from maia.hub.org (maia-5.hub.org [200.46.204.29]) by mail.postgresql.org (Postfix) with ESMTP id C43481337B52 for ; Fri, 1 Oct 2010 02:56:31 -0300 (ADT) Received: from mail.postgresql.org ([200.46.204.86]) by maia.hub.org (mx1.hub.org [200.46.204.29]) (amavisd-maia, port 10024) with ESMTP id 81283-10 for ; Fri, 1 Oct 2010 05:56:25 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from shrek.krogh.cc (2605ds1-ynoe.0.fullrate.dk [90.184.12.24]) by mail.postgresql.org (Postfix) with ESMTP id A68951337B59 for ; Fri, 1 Oct 2010 02:56:24 -0300 (ADT) Received: from localhost (localhost [127.0.0.1]) by shrek.krogh.cc (Postfix) with ESMTP id 58457C44002; Fri, 1 Oct 2010 07:56:22 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at shrek.krogh.cc Received: from shrek.krogh.cc ([127.0.0.1]) by localhost (shrek.krogh.cc [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id vMWOjxDnxVcA; Fri, 1 Oct 2010 07:56:19 +0200 (CEST) Received: from [90.184.13.151] (2605ds1-ynoe.2.fullrate.dk [90.184.13.151]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: jesper@krogh.cc) by shrek.krogh.cc (Postfix) with ESMTPSA id 0F69BC44001; Fri, 1 Oct 2010 07:56:19 +0200 (CEST) Message-ID: <4CA57802.7040408@krogh.cc> Date: Fri, 01 Oct 2010 07:56:18 +0200 From: Jesper Krogh User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.12) Gecko/20100915 Thunderbird/3.0.8 MIME-Version: 1.0 To: Marcelo Zabani , pgsql-performance@postgresql.org Subject: Re: gist indexes for distance calculations References: In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=-1.9 tagged_above=-10 required=5 tests=BAYES_00=-1.9 X-Spam-Level: X-Archive-Number: 201010/2 X-Sequence-Number: 40421 On 2010-09-30 20:33, Marcelo Zabani wrote: > If you can also pinpoint me to where I can find this sort of information > (index utilization and planning, performance tuning), I'd be very grateful. > Thank you already, > Isn't this what the knngist patches are for? https://commitfest.postgresql.org/action/patch_view?id=350 http://www.sai.msu.su/~megera/wiki/knngist -- Jesper