| From: | Alvaro Herrera <alvherre(at)commandprompt(dot)com> |
|---|---|
| To: | Simon Riggs <simon(at)2ndquadrant(dot)com> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Kim <kim(at)myemma(dot)com>, pgsql-performance(at)postgresql(dot)org, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: [HACKERS] unusual performance for vac following 8.2upgrade |
| Date: | 2007-01-12 01:09:18 |
| Message-ID: | 20070112010918.GM10464@alvh.no-ip.org |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers pgsql-performance |
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.
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Neil Conway | 2007-01-12 02:04:12 | NaN behavior |
| Previous Message | Joshua D. Drake | 2007-01-12 00:48:31 | Re: [HACKERS] Checkpoint request failed on version 8.2.1. |
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Tom Lane | 2007-01-12 02:51:39 | Re: [HACKERS] unusual performance for vac following 8.2upgrade |
| Previous Message | Cesar Suga | 2007-01-11 23:47:33 | Re: RES: Improving SQL performance |