From: Alvaro Herrera <alvherre@commandprompt.com>
To: Simon Riggs <simon@2ndquadrant.com>
Cc: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Kim <kim@myemma.com>
Cc: pgsql-performance@postgresql.org
Cc: pgsql-hackers@postgresql.org
Subject: Re: [HACKERS] unusual performance for vac following 8.2upgrade
Date: Thu, 11 Jan 2007 22:09:18 -0300
Message-ID: <20070112010918.GM10464@alvh.no-ip.org> (raw)
In-Reply-To: <1168557275.3990.49.camel@silverbirch.site>
References: <45A671CD.1050706@myemma.com>
<27939.1168539652@sss.pgh.pa.us>
<45A68C74.4080405@myemma.com>
<28949.1168544710@sss.pgh.pa.us>
<1168548006.3951.564.camel@silverbirch.site>
<5414.1168549900@sss.pgh.pa.us>
<1168557275.3990.49.camel@silverbirch.site>
Simon Riggs wrote:
> Temp relations still make pg_class entried don't they? Is that on the
> TODO list to change?
Yeah, and pg_attribute entries as well, which may be more problematic
because they are a lot. Did we get rid of pg_attribute entries for
system attributes already?
Can we actually get rid of pg_class entries for temp tables. Maybe
creating a "temp pg_class" which would be local to each session? Heck,
it doesn't even have to be an actual table -- it just needs to be
somewhere from where we can load entries into the relcache.
--
Alvaro Herrera http://www.CommandPrompt.com/
The PostgreSQL Company - Command Prompt, Inc.
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: alvherre@commandprompt.com, simon@2ndquadrant.com, tgl@sss.pgh.pa.us, kim@myemma.com, pgsql-hackers@postgresql.org
Subject: Re: [HACKERS] unusual performance for vac following 8.2upgrade
In-Reply-To: <20070112010918.GM10464@alvh.no-ip.org>
* 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