| From: | Josh Berkus <josh(at)agliodbs(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Andrew Sullivan <andrew(at)libertyrms(dot)info>, pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: Comparitive UPDATE speed |
| Date: | 2002-10-04 21:01:07 |
| Message-ID: | 200210041401.07878.josh@agliodbs.com |
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| Lists: | pgsql-performance |
Tom,
> I am suspicious that this table has a huge number of empty pages in it,
> mostly at the beginning. If so, a VACUUM FULL would help. (Try
> "vacuum full verbose elbs_matter_links" and see if it indicates it's
> reclaiming any large number of pages.)
Thank you. Aha.
That appears to have been the main problem; apparently, at some time during my
tinkering, I dumped most of the rows from elbs_matter_links a couple of
times. Ooops.
I'll post the new situation when I test the update queries tonight.
--
Josh Berkus
josh(at)agliodbs(dot)com
Aglio Database Solutions
San Francisco
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