Received: from localhost (maia-2.hub.org [200.46.204.187]) by postgresql.org (Postfix) with ESMTP id 92DA59FB840 for ; Tue, 1 May 2007 22:52:20 -0300 (ADT) Received: from postgresql.org ([200.46.204.71]) by localhost (mx1.hub.org [200.46.204.187]) (amavisd-maia, port 10024) with ESMTP id 38310-05 for ; Tue, 1 May 2007 22:52:11 -0300 (ADT) X-Greylist: from auto-whitelisted by SQLgrey-1.7.4 Received: from westnet.com (westnet.com [216.187.52.2]) by postgresql.org (Postfix) with ESMTP id EADE99FB70E for ; Tue, 1 May 2007 22:52:16 -0300 (ADT) Received: from westnet.com (localhost [127.0.0.1]) by westnet.com (8.14.0/8.14.0) with ESMTP id l421qGjt003629 for ; Tue, 1 May 2007 21:52:16 -0400 (EDT) Received: from localhost (gsmith@localhost) by westnet.com (8.14.0/8.13.2/Submit) with ESMTP id l421qGRS003626 for ; Tue, 1 May 2007 21:52:16 -0400 (EDT) X-Authentication-Warning: westnet.com: gsmith owned process doing -bs Date: Tue, 1 May 2007 21:52:16 -0400 (EDT) From: Greg Smith X-X-Sender: gsmith@westnet.com To: pgsql-performance@postgresql.org Subject: Re: Feature Request --- was: PostgreSQL Performance Tuning In-Reply-To: <33127762-7EBB-4D1E-9147-5BFB3EB7A883@earlham.edu> Message-ID: References: <20070427143023.GA2422@mathom.us> <46323744.5020703@drivefaster.net> <200704271059.50265.josh@agliodbs.com> <463616EB.3040800@modgraph-usa.com> <33127762-7EBB-4D1E-9147-5BFB3EB7A883@earlham.edu> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Virus-Scanned: Maia Mailguard 1.0.1 X-Archive-Number: 200705/7 X-Sequence-Number: 24397 On Mon, 30 Apr 2007, Kevin Hunter wrote: > I recognize that PostgreSQL and MySQL try to address different > problem-areas, but is this one reason why a lot of people with whom I > talk prefer MySQL? Because PostgreSQL is so "slooow" out of the box? It doesn't help, but there are many other differences that are as big or bigger. Here are a few samples off the top of my head: 1) Performance issues due to MVCC (MySQL fans love to point out how fast they can do select count(*) from x) 2) Not knowing you have to run vacuum analyze and therefore never seeing a good query result 3) Unfair comparison of PostgreSQL with robust WAL vs. MySQL+MyISAM on write-heavy worksloads These are real issues, which of course stack on top of things like outdated opinions from older PG releases with performance issues resolved in the last few years. -- * Greg Smith gsmith@gregsmith.com http://www.gregsmith.com Baltimore, MD