Horton

Re: Boolean operators without commutators vs. ALL/ANY

Peter Eisentraut <peter_e@gmx.net>

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From: Peter Eisentraut <peter_e@gmx.net>
To: Florian Pflug <fgp@phlo.org>
Cc: Robert Haas <robertmhaas@gmail.com>, Tom Lane <tgl@sss.pgh.pa.us>, PG Hackers <pgsql-hackers@postgresql.org>
Date: 2011-06-16T04:39:17Z
Lists: pgsql-hackers 
On tis, 2011-06-14 at 15:38 +0200, Florian Pflug wrote:
> BTW, there's actually precedent for a commutator of "~", namely
> "@". Some of the geometric types (polygon, box, circle, point,
> path) use "~" as a commutator for "@" (which stands for "contains"). 

I wouldn't have a problem with naming the reverse operator "@".