On Wed, 2011-02-16 at 23:24 +0200, Peter Eisentraut wrote:
>
> > But before expending time on that, I'd want to see some evidence
> that
> > it's actually helpful for production situations. I'm a bit dubious
> > that you're going to gain much here.
>
> If you want to build an index on a 500GB table and you have 1TB RAM,
> then being able to use >>1GB maintenance_work_mem can only be good,
> no?
That would also probably speed up Slony (or similar) replication engines
in initial replication phase. I know that I had to wait a lot while
creating big indexes on a machine which had enough ram.
--
Devrim GÜNDÜZ
EnterpriseDB: http://www.enterprisedb.com
PostgreSQL Danışmanı/Consultant, Red Hat Certified Engineer
Community: devrim~PostgreSQL.org, devrim.gunduz~linux.org.tr
http://www.gunduz.org Twitter: http://twitter.com/devrimgunduz
