Re: Parallel Aggregate

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: David Rowley <david(dot)rowley(at)2ndquadrant(dot)com>
Cc: Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Parallel Aggregate
Date: 2016-03-21 13:35:16
Message-ID: CA+TgmoY7_f-tfuKa=V0XrYcOqZ3fdd+Rjc4QcLH+Un-ZTc9iyg@mail.gmail.com
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On Sun, Mar 20, 2016 at 7:30 PM, David Rowley
<david(dot)rowley(at)2ndquadrant(dot)com> wrote:
> An updated patch is attached. This hopefully addresses your concerns
> with the comment, and also the estimate_hashagg_tablesize() NULL
> checking.

I have committed this after changing some of the comments.

There might still be bugs ... but I don't see them. And the speedups
look very impressive.

Really nice work, David.

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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