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Re: What is an RDF Query?

From: Peter F. Patel-Schneider <pfps@research.bell-labs.com>
Date: Mon, 10 Sep 2001 13:25:16 -0400
To: sandro@w3.org
Cc: www-rdf-rules@w3.org
Message-Id: <20010910132516S.pfps@research.bell-labs.com>
From: Sandro Hawke <sandro@w3.org>
Subject: Re: What is an RDF Query? 
Date: Mon, 10 Sep 2001 11:37:49 -0400

> Eric Prud'hommeaux wrote:
> > 
> > - use something else for variables.
> > 
> > None of the query engines I have played with encode queries in
> > RDF. This frees them up to use whatever they want to encoded
> > variables. The problem is, naturally, there is little
> > interoperability.  This limits not only the ability to use the same
> > query in different environments, but also the ability to make formal
> > assertions about queries and rules.
> Yep.   This works, but it ends up more complicated than we need, if we
> just handle existential variables properly.

I don't understand the need to encode everything in RDF.  Encoding
everything in RDF ends up with a very complicated system, and most of the
semantic import will be in the encodings, which are not part of RDF.

Peter F. Patel-Schneider
Bell Labs Research
Received on Monday, 10 September 2001 13:25:45 UTC

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