| From: | Alvaro Herrera <alvherre(at)commandprompt(dot)com> |
|---|---|
| To: | Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com> |
| Cc: | PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Subject: | Re: Visibility map, partial vacuums |
| Date: | 2008-12-03 13:51:20 |
| Message-ID: | 20081203135120.GF3968@alvh.no-ip.org |
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| Thread: | |
| Lists: | pgsql-hackers |
Heikki Linnakangas wrote:
> Hmm. It just occurred to me that I think this circumvented the
> anti-wraparound vacuuming: a normal vacuum doesn't advance relfrozenxid
> anymore. We'll need to disable the skipping when autovacuum is triggered
> to prevent wraparound. VACUUM FREEZE does that already, but it's
> unnecessarily aggressive in freezing.
Heh :-) Yes, this should be handled sanely, without having to invoke
FREEZE.
--
Alvaro Herrera http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support
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