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From: Detlef Rudolph <runic@gmx.de>
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Subject: Re: select count(*) performance
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Hello Group,

I've tried the VACUUM ANALYSE, that doesn't help
much, but VACUUM FULL improves Performance down
from about 40 secs to 8. I think in future I would
use the reltuples value from pg_class for the table.

Thanks a lot for your answers and a good Sunday,
Det