| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com> |
| Cc: | Robert Treat <xzilla(at)users(dot)sourceforge(dot)net>, pgsql-hackers(at)postgresql(dot)org, Peter Eisentraut <peter_e(at)gmx(dot)net>, Greg Smith <gsmith(at)gregsmith(dot)com>, Andreas Pflug <pgadmin(at)pse-consulting(dot)de>, Decibel! <decibel(at)decibel(dot)org>, Josh Berkus <josh(at)agliodbs(dot)com> |
| Subject: | Re: Overhauling GUCS |
| Date: | 2008-06-07 02:00:41 |
| Message-ID: | 9606.1212804041@sss.pgh.pa.us |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
"Joshua D. Drake" <jd(at)commandprompt(dot)com> writes:
> Not surprising really. It is a simple adjustment to make and it also is
> easy to spot when its a problem. However it is not trivial to test for
> (in terms of time and effort). I know 10 is wrong and so do you.
Sure. But what is right? I'm afraid to just push it to (say) 100
because of the possibility of O(N^2) behavior in eqjoinsel. Somebody
needs to do some measurements on somewhat realistic scenarios.
regards, tom lane
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Tom Lane | 2008-06-07 15:45:56 | Re: We have a launch abort ... PG update releases will be delayed |
| Previous Message | Joshua D. Drake | 2008-06-07 01:08:11 | Re: Overhauling GUCS |