Re: [DOCS] Autovacuum and XID wraparound - Mailing list pgsql-patches

Tom Lane wrote:
> Alvaro Herrera <alvherre@commandprompt.com> writes:
> > I suppose it would be pretty trivial to set the relfrozenxid to
> > RecentXmin or something during TRUNCATE.
>
> I had the idea we were doing that already --- at least I'm pretty sure I
> remember it being discussed.  But I see it's not being done in HEAD.

Patch to do it attached.  I am thinking we can do something similar in
CLUSTER as well.

--
Alvaro Herrera                                http://www.CommandPrompt.com/
The PostgreSQL Company - Command Prompt, Inc.