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Re: Idempotence and "Replication Insensitivity" are equivalent ?

From: Marshall <marshall.spight_at_gmail.com>
Date: 23 Sep 2006 08:59:30 -0700
Message-ID: <1159027170.906611.243230@m7g2000cwm.googlegroups.com>


Aloha Kakuikanu wrote:
> pamelafluente_at_libero.it wrote:
> > The median, like the mean IS an aggregate function.
> >
> > All dbms implements it.
>
> Look up any math book. Do you see an aggregate symbol except:
>
> i. sigma capital (aka summation)
> ii. pi capital (aka product)
> iii. /\ (aka min, aka conjunction, aka "for any" quantifier)
> iv. \/ (aka max, disjunction, "forall" )
>
> ? I don't.

Most of that I get, but I don't see how min and max fit in. How is min related to conjunction? How is max related to disjunction?

Marshall Received on Sat Sep 23 2006 - 10:59:30 CDT

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