| From: | "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov> |
|---|---|
| To: | "Jim C(dot) Nasby" <jnasby(at)pervasive(dot)com>, "Tom Lane" <tgl(at)sss(dot)pgh(dot)pa(dot)us>, "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov> |
| Cc: | <pgsql-hackers(at)postgresql(dot)org>,<pgsql-performance(at)postgresql(dot)org> |
| Subject: | Re: [PERFORM] temporary indexes |
| Date: | 2006-02-28 17:55:32 |
| Message-ID: | 44043A34.EE98.0025.0@wicourts.gov |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers pgsql-performance |
>>> On Tue, Feb 28, 2006 at 11:36 am, in message
<440435BC(dot)EE98(dot)0025(dot)0(at)wicourts(dot)gov>, "Kevin Grittner"
> Also, EXISTS works in situations where
> you need to compare on multiple columns, so it is useful in many
> situations where EXISTS or MIN/MAX techniques just don't work.
Sorry. That should have read:
EXISTS works in situations where
you need to compare on multiple columns, so it is useful in many
situations where IN or MIN/MAX techniques just don't work.
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Greg Stark | 2006-02-28 17:59:05 | Re: Dead Space Map |
| Previous Message | Tom Lane | 2006-02-28 17:47:58 | Re: Dead Space Map |
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Tom Lane | 2006-02-28 18:06:56 | Re: [PERFORM] temporary indexes |
| Previous Message | Kevin Grittner | 2006-02-28 17:36:28 | Re: [PERFORM] temporary indexes |