| From: | Gaetano Mendola <mendola(at)bigfoot(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Subject: | Re: performance of IN (subquery) |
| Date: | 2004-08-27 08:36:29 |
| Message-ID: | 412EF28D.7030707@bigfoot.com |
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| Lists: | pgsql-general |
Tom Lane wrote:
> 2. Instability of plans. Right now, the planner will not change plans
> underneath you --- you have to issue an explicit VACUUM or ANALYZE
> to change the terms of discussion. That would stop being true if
> physical file size were always taken into account. Maybe this is a
> problem, or maybe it isn't ... as someone who likes to be able to
> debug planner behavior without actually creating umpteen-gig test
> tables, my world view may be a bit skewed ...
Did you forgot the autovacuum daemon ? I didn't see anyone bitten or
paged during the night for autovacuum daemon job.
Regards
Gaetano Mendola
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