Re: Idempotence and "Replication Insensitivity" are equivalent ?
Date: 23 Sep 2006 08:59:30 -0700
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.