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Re: [HACKERS] Re: IDENTITY/GENERATED v36 Re: Final version of IDENTITY/GENERATED patch

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
Cc: Andrew Dunstan <andrew(at)dunslane(dot)net>, Zoltan Boszormenyi <zb(at)cybertec(dot)at>, "Florian G(dot) Pflug" <fgp(at)phlo(dot)org>, Bruce Momjian <bruce(at)momjian(dot)us>, List pgsql-patches <pgsql-patches(at)postgresql(dot)org>
Subject: Re: [HACKERS] Re: IDENTITY/GENERATED v36 Re: Final version of IDENTITY/GENERATED patch
Date: 2007-04-17 14:33:45
Message-ID: 21622.1176820425@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-hackerspgsql-patches
Alvaro Herrera <alvherre(at)commandprompt(dot)com> writes:
> BTW I just noticed this bug in the comment above a_expr:

>  * Note that '(' a_expr ')' is a b_expr, so an unrestricted expression can
>  * always be used by surrounding it with parens.

> It is wrong because it's not a b_expr, but a c_expr.

Well, it's right in context because the comment is discussing the
difference between a_expr and b_expr.  Also, a c_expr is-a b_expr.

If anyone seriously wants to propose removing postfix ops from b_expr,
we'd better take it up on someplace more widely read than -patches.

			regards, tom lane

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