Received: from localhost (maia-4.hub.org [200.46.204.183]) by postgresql.org (Postfix) with ESMTP id 8B6719FB3EB for ; Wed, 11 Jul 2007 16:32:12 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.183]) (amavisd-maia, port 10024) with ESMTP id 47319-03-2 for ; Wed, 11 Jul 2007 16:32:02 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey-1.7.5 Received: from moutng.kundenserver.de (moutng.kundenserver.de [212.227.126.188]) by postgresql.org (Postfix) with ESMTP id D08C69FB271 for ; Wed, 11 Jul 2007 16:32:03 -0300 (ADT) Received: from [194.25.154.138] (helo=webserv.wug.de) by mrelayeu.kundenserver.de (node=mrelayeu0) with ESMTP (Nemesis), id 0MKwh2-1I8hup0yrM-0004Nl; Wed, 11 Jul 2007 21:32:00 +0200 Received: from kretschmer by webserv.wug.de with local (Exim 3.36 #1) id 1I8huo-0007Og-00 for pgsql-performance@postgresql.org; Wed, 11 Jul 2007 21:31:58 +0200 Date: Wed, 11 Jul 2007 21:31:58 +0200 From: "A. Kretschmer" To: pgsql-performance@postgresql.org Subject: Re: bitmap-index-scan slower than normal index scan Message-ID: <20070711193158.GA28352@a-kretschmer.de> References: <20070711183638.GA30872@KanotixBox> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-OS: Debian/GNU Linux - weil ich es mir Wert bin! X-Message-Flag: "Windows" is not the answer. "Windows" is the question and the answer is "no"! User-Agent: Mutt/1.5.9i X-Provags-ID: V01U2FsdGVkX1/iwNRAyrlHnQjk/dD0vqkjxQeKT6DGsd8IRK9 YUfvEkvA2zPhbsV3s3NAALX6+VavpNK7dun0OgrQB1Z0X3Iqpz Q4E/ftEJ/sOXSNH1ROWx1ohYA7uCZUN X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200707/115 X-Sequence-Number: 25799 am Wed, dem 11.07.2007, um 14:52:01 -0400 mailte Alex Deucher folgendes: > >Okay, i got a really different plan, but i expected _NOT_ a > >performance-boost like this. I expected the opposite. > > > > > >It's not a really problem, i just played with this. But i'm confused > >about this... > > > > your results are getting cached. try two queries in a row with the same > plan. Thanks for the response, but I've done this, no difference. Andreas -- Andreas Kretschmer Kontakt: Heynitz: 035242/47150, D1: 0160/7141639 (mehr: -> Header) GnuPG-ID: 0x3FFF606C, privat 0x7F4584DA http://wwwkeys.de.pgp.net