| 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: | Christopher Kings-Lynne <chriskl(at)familyhealth(dot)com(dot)au>, pgsql-patches(at)postgresql(dot)org |
| Subject: | Re: BETWEEN Help |
| Date: | 2002-04-14 23:56:36 |
| Message-ID: | 200204142356.g3ENuaI16436@candle.pha.pa.us |
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| Lists: | pgsql-patches |
Tom Lane wrote:
> Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> > Is there special optimizer/index handling needed for BETWEEN that wasn't
> > needed before because it was transformed into AND/OR comparisons?
>
> Yup, that's one place that will need to be taught about it.
That was actually a reason I was wondering if it was worth changing our
current BETWEEN code. The optimizer already is complicated and trying
to do BETWEEN rather than the more simpler statements didn't seem like a
win.
--
Bruce Momjian | http://candle.pha.pa.us
pgman(at)candle(dot)pha(dot)pa(dot)us | (610) 853-3000
+ If your life is a hard drive, | 830 Blythe Avenue
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