Re: Slow performance with join on many fields

From: Alex Johnson <alex(at)aretesystems(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: pgsql-performance(at)postgresql(dot)org
Subject: Re: Slow performance with join on many fields
Date: 2003-03-04 07:46:38
Message-ID: 6E7231D8-4E15-11D7-85B6-000502FCE08D@aretesystems.com
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Tom-
Thanks for the speedy reply.

> That's on the picayune side yet. 1000 buffers or so is where you want
> to be, I think. Also, have you run ANALYZE or VACUUM ANALYZE lately?

VACUUM ANALYSE did it.... (doh!...now I feel stupid). I had run VACUUM
and VACUUM ANALYZE from pgAdmin, yesterday. After running it from the
command line now, It's much improved (~ 2-3 secs). I'm now looking
into getting my kernel to increase the SHMAX parameter so I can bump up
the shared buffers some more.

Thanks again for the speedy help, and sorry for the obvious goof.

Alex Johnson
________________________________________________________________________
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A r e t e S y s t e m s
Alexander Johnson, P.E.

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