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Re: Applying the relational model to SPARQL

From: Eric Prud'hommeaux <eric@w3.org>
Date: Thu, 4 Jan 2007 17:59:42 +0100
To: Bob MacGregor <bmacgregor@siderean.com>
Cc: Andrew Newman <andrewfnewman@gmail.com>, "public-rdf-dawg-comments@w3.org" <public-rdf-dawg-comments@w3.org>
Message-ID: <20070104165942.GA26903@w3.org>
* Bob MacGregor <bmacgregor@siderean.com> [2006-11-10 08:55-0800]
> That brings us to SPARQL.  SPARQL is a major disappointment.  The most
> grievous error is the distinction between the WHERE and FILTER clauses.
> The faceted navigation product that my company sells generates RDF
> queries that cannot be expressed in SPARQL because they frequently
> use an OR connective that includes both statements and filters within
> the disjuncts.  In otherwords, the queries we routinely execute cannot
> be processed by a SPARQL query engine.

Could you outline such a query in the syntax of your choice? I may
require an english explanation of the query in order to understand it.

-- 
-eric

office: +1.617.258.5741 NE43-344, MIT, Cambridge, MA 02144 USA
cell:   +1.857.222.5741

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Received on Thursday, 4 January 2007 17:00:38 GMT

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