Re: Fixing Grittner's planner issues

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Robert Haas <robertmhaas(at)gmail(dot)com>
Cc: pgsql-hackers(at)postgresql(dot)org, Kevin Grittner <Kevin(dot)Grittner(at)wicourts(dot)gov>
Subject: Re: Fixing Grittner's planner issues
Date: 2009-02-19 20:44:59
Message-ID: 25651.1235076299@sss.pgh.pa.us
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers

Robert Haas <robertmhaas(at)gmail(dot)com> writes:
> On Thu, Feb 19, 2009 at 1:38 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> I'll change the comment. Does this help?

> It's an improvement, but your example above is so helpful in
> understanding what is going on here that it might be worth explicitly
> mentioning it in the comment, maybe something like this:

Done, see
http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/optimizer/path/joinrels.c?r1=1.97&r2=1.98

regards, tom lane

In response to

Responses

Browse pgsql-hackers by date

  From Date Subject
Next Message Joshua Tolley 2009-02-19 20:50:55 Re: Proposed Patch to Improve Performance of Multi-BatchHash Join for Skewed Data Sets
Previous Message Tom Lane 2009-02-19 20:39:56 Re: Re: [COMMITTERS] pgsql: Start background writer during archive recovery.