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Re: [HACKERS] Autovacuum loose ends

From: Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org>
To: pgsql-patches(at)postgresql(dot)org
Subject: Re: [HACKERS] Autovacuum loose ends
Date: 2005-07-29 19:48:05
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Lists: pgsql-hackerspgsql-patches
On Fri, Jul 29, 2005 at 03:33:09PM -0400, Tom Lane wrote:
> Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org> writes:
> > Updated this patch:
> > - The stat collector is modified so as to keep shared relations separate
> >   from regular ones.  Autovacuum understands this.
> >   [etc]
> Applied with some fixes --- you had broken the reporting of statistics
> for shared tables, for one thing.

Oops :-(  Didn't notice that.

> Also the patch seemed to be missing diffs for header files?

Damn, I generated the diff from within src/backend instead of the root
:-(  Sorry for the inconvenience.

> It occurs to me that vacuuming to prevent XID wraparound is not the only
> reason to do DB-wide vacuums: we also need to keep
> pg_database.datvacuumxid from getting too old, else we will have
> problems with clog bloat.  We may need to rethink the test used.

Hmm.  Will see about it.

Alvaro Herrera (<alvherre[a]>)
"La Primavera ha venido. Nadie sabe como ha sido" (A. Machado)

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