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Home > Archive > PostgreSQL Performance > March 2006 > un-'vacuum analyse'
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un-'vacuum analyse'
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| Frederic Back 2006-03-31, 11:30 am |
| Hello,
I would like to know how my application works before
and after data from VACUUM ANALYSE is available.
Is there a way to de-'vacuum analyse' a database for
testing purposes?
Thank you,
Fred
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| Tom Lane 2006-03-31, 11:30 am |
| Frederic Back <fredericback@gmail.com> writes:
> Is there a way to de-'vacuum analyse' a database for
> testing purposes?
"DELETE FROM pg_statistic" will get you most of the way there.
It doesn't get rid of the accurate relpages/reltuples entries
in pg_class, but since CREATE INDEX also updates those counts,
I think it's reasonable to consider that a freshly loaded database
would normally have correct counts.
regards, tom lane
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