Received: from maia.hub.org (maia-5.hub.org [200.46.204.29]) by mail.postgresql.org (Postfix) with ESMTP id C37936325B7 for ; Thu, 29 Jul 2010 15:17:17 -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 69333-04 for ; Thu, 29 Jul 2010 18:17:10 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from spinlock.commandprompt.com (host-215.commandprompt.net [207.173.203.215]) by mail.postgresql.org (Postfix) with ESMTP id 38B2B62FA79 for ; Thu, 29 Jul 2010 15:17:10 -0300 (ADT) Received: from localhost (localhost [127.0.0.1]) by spinlock.commandprompt.com (Postfix) with ESMTP id D0F88348035; Thu, 29 Jul 2010 11:17:03 -0700 (PDT) X-Virus-Scanned: Debian amavisd-new at commandprompt.com Received: from spinlock.commandprompt.com ([127.0.0.1]) by localhost (spinlock.commandprompt.com.commandprompt.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id TqGIFlNIol7n; Thu, 29 Jul 2010 11:17:01 -0700 (PDT) Received: from [75.142.153.107] (unknown [75.142.153.107]) by spinlock.commandprompt.com (Postfix) with ESMTPSA id 3B5BC348002; Thu, 29 Jul 2010 11:17:01 -0700 (PDT) Subject: Re: On Scalability From: "Joshua D. Drake" Reply-To: jd@commandprompt.com To: Vincenzo Romano Cc: pgsql-hackers@postgresql.org In-Reply-To: References: <1280423526.8613.36.camel@jd-desktop.unknown.charter.com> <1280425184.8613.41.camel@jd-desktop.unknown.charter.com> Content-Type: text/plain; charset="UTF-8" Organization: Command Prompt, Inc. Date: Thu, 29 Jul 2010 11:16:50 -0700 Message-ID: <1280427410.8613.44.camel@jd-desktop.unknown.charter.com> Mime-Version: 1.0 X-Mailer: Evolution 2.28.3 Content-Transfer-Encoding: 7bit X-Virus-Scanned: Maia Mailguard 1.0.1 X-Spam-Status: No, hits=-0.5 tagged_above=-5 required=5 tests=BAYES_05=-0.5 X-Spam-Level: X-Archive-Number: 201007/1528 X-Sequence-Number: 166717 On Thu, 2010-07-29 at 19:52 +0200, Vincenzo Romano wrote: > 2010/7/29 Joshua D. Drake : > > On Thu, 2010-07-29 at 19:34 +0200, Vincenzo Romano wrote: > > > >> I expect that a more complex schema will imply higher workloads > >> on the query planner. What I don't know is how the increase in the > >> workload will happen: linearly, sublinearly, polynomially or what? > > Do you think I should ask somewhere else? > Any hint? The two people that would likely know the best are on vacation, TGL and Heikki. You may have to wait a bit. Sincerely, Joshua D. Drake -- PostgreSQL.org Major Contributor Command Prompt, Inc: http://www.commandprompt.com/ - 509.416.6579 Consulting, Training, Support, Custom Development, Engineering http://twitter.com/cmdpromptinc | http://identi.ca/commandprompt