| From: | Bruce Momjian <bruce(at)momjian(dot)us> |
|---|---|
| To: | Alvaro Herrera <alvherre(at)commandprompt(dot)com> |
| Cc: | ITAGAKI Takahiro <itagaki(dot)takahiro(at)oss(dot)ntt(dot)co(dot)jp>, pgsql-patches(at)postgresql(dot)org |
| Subject: | Re: Error correction for n_dead_tuples |
| Date: | 2007-02-20 01:42:53 |
| Message-ID: | 200702200142.l1K1gri11542@momjian.us |
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| Thread: | |
| Lists: | 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(at)momjian(dot)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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