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From: Tom Lane <tgl@sss.pgh.pa.us>
To: David G. Johnston <david.g.johnston@gmail.com>
Cc: Robert Haas <robertmhaas@gmail.com>
Cc: Alvaro Herrera <alvherre@2ndquadrant.com>
Cc: Steven Pousty <steve.pousty@gmail.com>
Cc: Pavel Stehule <pavel.stehule@gmail.com>
Cc: Isaac Morland <isaac.morland@gmail.com>
Cc: Pierre Giraud <pierre.giraud@dalibo.com>
Cc: PostgreSQL Developers <pgsql-hackers@lists.postgresql.org>
Subject: Re: Poll: are people okay with function/operator table redesign?
Date: Fri, 17 Apr 2020 19:16:59 -0400
Message-ID: <6655.1587165419@sss.pgh.pa.us> (raw)
In-Reply-To: <CAKFQuwZhr5-dpRVWhHqxHVDEsenYoNuFuCKN66mvRxdykBzLGA@mail.gmail.com>
References: <20200416230304.GA28390@alvherre.pgsql>
	<17560.1587083109@sss.pgh.pa.us>
	<CA+TgmoYP2Lx=e1EbkJo-EVH6nWP8=+Rbu=u3LcnzWvh=VY47zA@mail.gmail.com>
	<20266.1587148695@sss.pgh.pa.us>
	<CAKFQuwamrEtOp2swR38MWNNYatu_L2YUMjNO=Nw3kKRvMymOCQ@mail.gmail.com>
	<6099.1587164691@sss.pgh.pa.us>
	<CAKFQuwZhr5-dpRVWhHqxHVDEsenYoNuFuCKN66mvRxdykBzLGA@mail.gmail.com>

"David G. Johnston" <david.g.johnston@gmail.com> writes:
> On Fri, Apr 17, 2020 at 4:04 PM Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> Especially not for unary operators, where
>> ALTER OPERATOR would have us write "- (NONE, integer)".

> I'd drop the parens for unary and just write "- integer"

We do have some postfix operators still ... although it looks like
there's only one in core.  In any case, the signature line is *the*
thing that is supposed to specify what the syntax is, so I'm not
too pleased with using an ambiguous notation for it.

			regards, tom lane





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