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Re: generalizing the planner knobs

From: "Pollard, Mike" <mpollard(at)cincom(dot)com>
To: "Gregory Maxwell" <gmaxwell(at)gmail(dot)com>
Cc: "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>,"Greg Stark" <gsstark(at)mit(dot)edu>,"Jonah H(dot) Harris" <jonah(dot)harris(at)gmail(dot)com>,"Neil Conway" <neilc(at)samurai(dot)com>,"pgsql-hackers" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: generalizing the planner knobs
Date: 2005-12-02 03:21:23
Message-ID: 6418CC03D0FB1943A464E1FEFB3ED46B01B220F4@im01.cincom.com (view raw or flat)
Thread:
Lists: pgsql-hackers
Gregory Maxwell <gmaxwell(at)gmail(dot)com> wrote:
> The flipside there is that a good set of hinting options  may increase
> the amount of detailed feedback we get from users on improvements
> needed in the optimizer.  The current knobs are pretty blunt and don't
> do as much as I'd like when trying to track down exactly where the
> optimiser has gone wrong.

Point conceded.  Any information that can help diagnose an issue is good
information.  I like the idea of only allowing it on explain.

Mike Pollard
SUPRA Server SQL Engineering and Support
Cincom Systems, Inc.



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