Re: partitioned table and ORDER BY indexed_field DESCLIMIT 1

["Luke Lonergan" <LLonergan(at)greenplum(dot)com>]

Title: Re: [PERFORM] partitioned table and ORDER BY indexed_field DESCLIMIT 1

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(at)2ndquadrant(dot)com]
Sent:   Saturday, October 27, 2007 05:34 PM Eastern Standard Time
To:     Luke Lonergan
Cc:     Heikki Linnakangas; Anton; pgsql-performance(at)postgresql(dot)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