From: Steinar H. Gunderson <sgunderson@bigfoot.com>
To: pgsql-performance@postgresql.org
Subject: Re: Weird performance drop after VACUUM
Date: Sat, 27 Aug 2005 12:19:45 +0200
Message-ID: <20050827101945.GA18155@uio.no> (raw)
In-Reply-To: <26745.1125099111@sss.pgh.pa.us>
References: <1125093859.9329.30.camel@localhost.localdomain>
<26745.1125099111@sss.pgh.pa.us>
On Fri, Aug 26, 2005 at 07:31:51PM -0400, Tom Lane wrote:
> Or you could just play with the order of the filter conditions ... for
> example, the date condition at the end is probably far cheaper to test
> than the text comparisons, so if that's fairly selective it'd be worth
> putting it first.
That's an interesting approach -- could the planner do such things itself?
/* Steinar */
--
Homepage: http://www.sesse.net/
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-performance@postgresql.org
Cc: sgunderson@bigfoot.com
Subject: Re: Weird performance drop after VACUUM
In-Reply-To: <20050827101945.GA18155@uio.no>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox