Skip site navigation (1) Skip section navigation (2)

Proof of concept for MIN/MAX optimization

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: pgsql-patches(at)postgreSQL(dot)org
Subject: Proof of concept for MIN/MAX optimization
Date: 2005-04-11 05:40:42
Message-ID: 21899.1113198042@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-patches
I haven't done the work yet to add a column to pg_aggregate, so this
just knows about optimizing a couple of hard-wired cases (int4 and
text).  Other than that it's reasonably complete, I think.  Comments?

			regards, tom lane


Attachment: minmax-0.patch.gz
Description: application/octet-stream (11.4 KB)

Responses

pgsql-patches by date

Next:From: RĂ©mi ZaraDate: 2005-04-11 19:33:38
Subject: NetBSD mac68k crashing on union regression test
Previous:From: Qingqing ZhouDate: 2005-04-11 03:10:25
Subject: remove an unused variable waitingForSignal

Privacy Policy | About PostgreSQL
Copyright © 1996-2014 The PostgreSQL Global Development Group