Re: Between Node

I believe Tom mentioned that having BETWEEN as a node would allow him to do
some sort of funky optimiser improvement.  Is that already done or does he
still need to do it?

Chris

> -----Original Message-----
> From: pgsql-patches-owner@postgresql.org
> [mailto:pgsql-patches-owner@postgresql.org]On Behalf Of Bruce Momjian
> Sent: Thursday, 18 July 2002 12:42 PM
> To: Rod Taylor
> Cc: pgsql-patches@postgresql.org
> Subject: Re: [PATCHES] Between Node
>
>
>
> Patch applied.  Thanks.
>
> ------------------------------------------------------------------
> ---------
>
>
> Rod Taylor wrote:
> > Finished the Between patch Christopher started.
> >
> > Implements between (symmetric / asymmetric) as a node.
> >
> > Executes the left or right expression once, makes a Const out of the
> > resulting Datum and executes the >=, <= portions out of the Const sets.
> >
> > Of course, the parser does a fair amount of preparatory work for this to
> > happen.
>
> [ Attachment, skipping... ]
>
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