Re: Simple join optimized badly?

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: josh(at)agliodbs(dot)com
Cc: pgsql-performance(at)postgresql(dot)org, "Denis Lussier" <denisl(at)enterprisedb(dot)com>, "Bruce Momjian" <bruce(at)momjian(dot)us>, "korryd(at)enterprisedb(dot)com" <korryd(at)enterprisedb(dot)com>, "Jonah H(dot) Harris" <jharris(at)enterprisedb(dot)com>, "Craig A(dot) James" <cjames(at)modgraph-usa(dot)com>
Subject: Re: Simple join optimized badly?
Date: 2006-10-08 23:16:37
Message-ID: 12915.1160349397@sss.pgh.pa.us
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Josh Berkus <josh(at)agliodbs(dot)com> writes:
> Now, if you were offering us a patch to auto-populate the statistics as a
> table is loaded, I'd be all for that.

Curiously enough, I was just thinking about that after reading Craig's
post. autovacuum will do this, sort of, if it's turned on --- but its
reaction time is measured in minutes typically so that may not be good
enough.

Another thing we've been beat up about in the past is that loading a
pg_dump script doesn't ANALYZE the data afterward...

regards, tom lane

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