Re: <OR> predicate?

From: Erwin <e.smout_at_myonline.be>
Date: Wed, 29 Sep 2010 06:33:05 -0700 (PDT)
Message-ID: <96def3a0-64c4-441f-b893-af4839f613e3_at_j24g2000yqa.googlegroups.com>

On 28 sep, 18:52, Vadim Tropashko <vadim..._at_gmail.com> wrote:

> I'm not sure I follow their idea that SUMMARIZE is expressed via AND,
> OR, NOT, REMOVE, RENAME. Emailed to Hugh once, but didn't get a
> responce
>
> - Tekst uit oorspronkelijk bericht weergeven -

Why not ?

It has not been sufficiently demonstrated that SUMMARIZE can be expressed in terms of the 'classical' primitives JOIN,PROJECT,EXTEND ?

It has not been sufficiently demonstrated that those 'classical' primitives can be expressed using the A operators ? Received on Wed Sep 29 2010 - 15:33:05 CEST

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