| From: | Alvaro Herrera <alvherre(at)commandprompt(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Michael Fuhr <mike(at)fuhr(dot)org>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Vacuuming anything zeroes shared table stats |
| Date: | 2007-06-07 18:59:53 |
| Message-ID: | 20070607185953.GD21004@alvh.no-ip.org |
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| Lists: | pgsql-hackers |
Tom Lane wrote:
> Michael Fuhr <mike(at)fuhr(dot)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.
Right. Committed.
Thanks for the report!
--
Alvaro Herrera Developer, http://www.PostgreSQL.org/
"El miedo atento y previsor es la madre de la seguridad" (E. Burke)
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