Re: Discussion on missing optimizations
David Rowley <david.rowley@2ndquadrant.com>
From: David Rowley <david.rowley@2ndquadrant.com>
To: Andres Freund <andres@anarazel.de>
Cc: Adam Brusselback <adambrusselback@gmail.com>,
Pg Hackers <pgsql-hackers@postgresql.org>
Date: 2017-10-09T04:47:50Z
Lists: pgsql-hackers
Attachments
- remove_left_join_distinct_v2.patch (application/octet-stream) patch v2
On 9 October 2017 at 17:41, David Rowley <david.rowley@2ndquadrant.com> wrote: > Thoughts? Actually, I was a little inconsistent with my List NULL/NIL checks in that last one. I've attached an updated patch. -- David Rowley http://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Training & Services
Commits
-
Reduce "X = X" to "X IS NOT NULL", if it's easy to do so.
- 8ec5429e2f42 11.0 landed