Re: Autovacuum Improvements

Chris Browne wrote:
> matthew@zeut.net ("Matthew O'Connor") writes:
> 
> > Bruce Momjian wrote:
> >> Yes, I think there are these TODO items.  I was waiting to see what
> >> additional replies there are before adding them.
> >
> > Speaking of which, I was just looking at the TODO at:
> >
> > http://www.postgresql.org/docs/faqs.TODO.html
> >
> > and I think this item:
> >
> > * Improve xid wraparound detection by recording per-table rather than
> > per-database
> >
> > is done and working in 8.2 no?
> 
> That's in the 8.2 release notes:
> 
> - Track maximum XID age within individual tables, instead of whole
> databases (Alvaro)
> 
> This reduces the overhead involved in preventing transaction ID
> wraparound, by avoiding unnecessary VACUUMs.

Yeah, this is what the TODO item was about, so it certainly is done.

-- 
Alvaro Herrera                                http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support