Re: BETWEEN SYMMETRIC/ASYMMETRIC

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: "Christopher Kings-Lynne" <chriskl(at)familyhealth(dot)com(dot)au>
Cc: "Gavin Sherry" <swm(at)linuxworld(dot)com(dot)au>, "Hackers" <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: BETWEEN SYMMETRIC/ASYMMETRIC
Date: 2002-04-10 04:35:43
Message-ID: 1456.1018413343@sss.pgh.pa.us
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"Christopher Kings-Lynne" <chriskl(at)familyhealth(dot)com(dot)au> writes:
> Can someone comment on my use of %prec BETWEEN? Is that still correct now
> that we have the extra BETWEEN forms?

Looks fine. AFAICS we want all these forms to have the binding
precedence assigned to BETWEEN. If you don't do the %prec thing
then the productions will have the precedence of their rightmost
terminal symbol, ie, AND, ie, wrong.

regards, tom lane

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