| From: | Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> |
|---|---|
| To: | Christopher Kings-Lynne <chriskl(at)familyhealth(dot)com(dot)au> |
| Cc: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Gavin Sherry <swm(at)linuxworld(dot)com(dot)au>, Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: BETWEEN SYMMETRIC/ASYMMETRIC |
| Date: | 2002-04-18 03:24:28 |
| Message-ID: | 200204180324.g3I3OSE01121@candle.pha.pa.us |
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| Lists: | pgsql-hackers |
Christopher Kings-Lynne wrote:
> > > So should I go ahead and submit a patch for BETWEEN that adds SYMMETRY
> > > support in the old-style code, and then at a later stage submit
> > a patch that
> > > makes BETWEEN a proper node?
> >
> > Sure, I think that makes sense. The larger BETWEEN node code will be
> > tricky.
>
> Question: Why have you created a special case for NOT BETWEEN? Wouldn't you
> just need a BETWEEN node and the NOT node will handle the NOTing?
>
> Or is it because BETWEEN isn't a node at the moment?
Well, looking at the grammar, I don't know how I could have gotten NOT
into that construction. There are two parameters separated by AND and I
didn't know how to do it.
--
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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