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Re: Vacuuming anything zeroes shared table stats - Mailing list pgsql-hackers

From Tom Lane
Subject Re: Vacuuming anything zeroes shared table stats
Date
Msg-id 19365.1181241359@sss.pgh.pa.us
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In response to Re: Vacuuming anything zeroes shared table stats  (Michael Fuhr <mike@fuhr.org>)
Responses Re: Vacuuming anything zeroes shared table stats
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Michael Fuhr <mike@fuhr.org> writes:
> Further investigation shows that what really seems to be happening
> in 8.3devel is that the statistics for shared tables are reset every
> 15 seconds when autovacuum is enabled, which it is by default.  I
> don't observe this phenomenon when autovacuum is disabled.

OK, so it's just that pgstat_vacuum_tabstat() gets run by autovacuum.
So either form of Alvaro's patch should fix it.
        regards, tom lane

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