Re: Error correction for n_dead_tuples - Mailing list pgsql-patches

From Bruce Momjian
Subject Re: Error correction for n_dead_tuples
Date
Msg-id 200702200142.l1K1gri11542@momjian.us
Whole thread Raw
In response to Re: Error correction for n_dead_tuples  (Alvaro Herrera <alvherre@commandprompt.com>)
List pgsql-patches
Alvaro Herrera wrote:
> Bruce Momjian wrote:
> >
> > Your patch has been added to the PostgreSQL unapplied patches list at:
> >
> >     http://momjian.postgresql.org/cgi-bin/pgpatches
> >
> > It will be applied as soon as one of the PostgreSQL committers reviews
> > and approves it.
>
> Please put this on hold until we decide what to do with Heikki's patch
> to update OldestXmin during vacuum.
>
> One idea is to count the tuples actually cleared during vacuum.  Another
> idea is to reread pgstat data after each OldestXmin recalculation to get
> accurate dead tuple counting.  Neither of these seem very satisfying.

OK.

--
  Bruce Momjian  <bruce@momjian.us>          http://momjian.us
  EnterpriseDB                               http://www.enterprisedb.com

  + If your life is a hard drive, Christ can be your backup. +

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