| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov> |
| Cc: | "Simon Riggs" <simon(at)2ndquadrant(dot)com>, "David E(dot) Wheeler" <david(at)kineticode(dot)com>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: WIP: patch to create explicit support for semi and anti joins |
| Date: | 2008-08-14 19:04:35 |
| Message-ID: | 1463.1218740675@sss.pgh.pa.us |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
"Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov> writes:
> Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>> I can't yet *prove* that I can get better estimates
>> with the added info, but if not, that just means I need to rethink what
>> to pass down exactly.
> I'll see if I can do some testing here to confirm plan improvements
> and check estimate accuracy. This is only on the trunk, not any
> stable branches? I assume that effort should wait until you have a
> candidate for the estimate improvements?
Yeah. If you feel like it you can test what I just committed, but it's
definitely not where I expect to end up in another few days.
regards, tom lane
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Jan Urbański | 2008-08-14 19:45:18 | Re: gsoc, oprrest function for text search take 2 |
| Previous Message | Tom Lane | 2008-08-14 18:15:22 | Re: autovacuum and TOAST tables |