| From: | Chris Browne <cbbrowne(at)acm(dot)org> |
|---|---|
| To: | pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: One table is very slow, but replicated table (same data) is fine |
| Date: | 2006-12-08 03:33:07 |
| Message-ID: | 60lklj6ozw.fsf@dba2.int.libertyrms.com |
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| Lists: | pgsql-performance |
arthurbellis(at)gmail(dot)com writes:
> If anyone knows what may cause this problem, or has any other ideas, I
> would be grateful.
Submit the command "VACUUM ANALYZE VERBOSE locations;" on both
servers, and post the output of that. That might help us tell for
sure whether the table is bloated (and needs VACUUM FULL/CLUSTER).
The query plans are suggestive; on the 'master', the cost is
113921.40, whereas on the 'slave' it's 2185.09; I'll bet that those
numbers are proportional to the number of pages assigned to the table
on the respective servers...
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