Received: from localhost.localdomain (postgresql.org [64.49.215.8]) by localhost (Postfix) with ESMTP id EB1B4476ECA for ; Wed, 19 Jun 2002 10:57:57 -0400 (EDT) Received: from sss.pgh.pa.us (unknown [192.204.191.242]) by postgresql.org (Postfix) with ESMTP id 2D1D3476E59 for ; Wed, 19 Jun 2002 10:18:48 -0400 (EDT) Received: from sss2.sss.pgh.pa.us (tgl@localhost [127.0.0.1]) by sss.pgh.pa.us (8.11.4/8.11.4) with ESMTP id g5JEIp104196; Wed, 19 Jun 2002 10:18:51 -0400 (EDT) To: Jeff Self Cc: pgsql-sql@postgresql.org Subject: Re: SQL performance issue with PostgreSQL compared to MySQL In-reply-to: <1024493212.11141.9.camel@jselfpc> References: <1024493212.11141.9.camel@jselfpc> Comments: In-reply-to Jeff Self message dated "19 Jun 2002 09:26:52 -0400" Date: Wed, 19 Jun 2002 10:18:51 -0400 Message-ID: <4193.1024496331@sss.pgh.pa.us> From: Tom Lane X-Archive-Number: 200206/249 X-Sequence-Number: 8214 Jeff Self writes: > if it's too OT, let me know, and I'll stop. The query "SELECT authuser, > SUM(bytes) AS traffic FROM logfile GROUP BY authuser ORDER BY traffic" > [is slow] What datatype are the columns used in the query? And what PG version are we talking about? regards, tom lane