Re: Boolean operators without commutators vs. ALL/ANY

From: "Stephen J(dot) Butler" <stephen(dot)butler(at)gmail(dot)com>
To: Florian Pflug <fgp(at)phlo(dot)org>
Cc: PG Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Boolean operators without commutators vs. ALL/ANY
Date: 2011-06-13 07:19:20
Message-ID: BANLkTinc+D64qc9rdAxMR1K=0v-MpF1Uig@mail.gmail.com
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On Sun, Jun 12, 2011 at 6:46 AM, Florian Pflug <fgp(at)phlo(dot)org> wrote:
> (B) There should be a way to use ANY()/ALL() with the
> array elements becoming the left arguments of the operator.

FWIW, in case people were unaware, this is getting close to Perl 6
junctions/superpositions. See:
<http://dev.perl.org/perl6/doc/design/exe/E06.html> "The Wonderful
World of Junctions". Beyond "any" and "all" they propose "one" and
"none".

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