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Re: Idempotence and "Replication Insensitivity" are equivalent ?

From: <pamelafluente_at_libero.it>
Date: 18 Sep 2006 23:56:24 -0700
Message-ID: <1158648984.159348.258300@i3g2000cwc.googlegroups.com> 






Chris Smith ha scritto:



> For example, AVG is an aggregate function because it is defined by

> SUM(P) / COUNT(P), where SUM and COUNT can be defined as primitive

> aggregate functions... but there is no function g that generates AVG

> directly.




consider also these "aggregate" functions:






-P




> It's late.  I'll think more about this tomorrow.

> 

> -- 

> Chris Smith

Received on Tue Sep 19 2006 - 01:56:24 CDT












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