Re: proposal: session server side variables

From: Fabien COELHO <coelho(at)cri(dot)ensmp(dot)fr>
To: Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>
Cc: Craig Ringer <craig(at)2ndquadrant(dot)com>, Fabrízio de Royes Mello <fabriziomello(at)gmail(dot)com>, Joe Conway <mail(at)joeconway(dot)com>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: proposal: session server side variables
Date: 2016-12-30 06:42:05
Message-ID: alpine.DEB.2.20.1612300733390.32017@lancre
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> Not sure if term "singleton" is valid in relation database.

The term is valid in mathematics: The relational model is an extension of
set theory, eg the algebra includes set operators such as union,
intersection, difference... In the set theory, a singleton designate is a
exactly-one-element set. At least Wikipedia and my dwindling memories tell
me so:-)

--
Fabien.

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