Works great - plans no longer sort, but rather use indices as expected. It's in use in Greenplum now.
It's a simple approach, should easily extend from gpdb to postgres. The patch is against gpdb so someone needs to 'port' it.
- Luke
Msg is shrt cuz m on ma treo
-----Original Message-----
From: Simon Riggs [mailto:simon@2ndquadrant.com]
Sent: Saturday, October 27, 2007 05:34 PM Eastern Standard Time
To: Luke Lonergan
Cc: Heikki Linnakangas; Anton; pgsql-performance@postgresql.org
Subject: Re: [PERFORM] partitioned table and ORDER BY indexed_field DESCLIMIT 1
On Sat, 2007-10-27 at 15:12 -0400, Luke Lonergan wrote:
> And I repeat - 'we fixed that and submitted a patch' - you can find it
> in the unapplied patches queue.
I got the impression it was a suggestion rather than a tested patch,
forgive me if that was wrong.
Did the patch work? Do you have timings/different plan?
--
Simon Riggs
2ndQuadrant http://www.2ndQuadrant.com