| From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Greg Stark <gsstark(at)mit(dot)edu>, Jared Carr <jared(at)89glass(dot)com>, pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: A question on the query planner |
| Date: | 2003-12-03 23:17:37 |
| Message-ID: | 200312032317.hB3NHbY27219@candle.pha.pa.us |
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| Lists: | pgsql-performance |
Tom Lane wrote:
> Greg Stark <gsstark(at)mit(dot)edu> writes:
> > Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> writes:
> >> Define "no longer works well".
>
> > Well it seems to completely bar the use of a straight merge join between two
> > index scans:
>
> Hmmm ... [squints] ... it's not supposed to do that ... [digs] ... yeah,
> there's something busted here. Will get back to you ...
LOL, but I am not sure why. :-)
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 359-1001
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