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Re: Feedback for SparQL at workshop "Semantic Web and Databases" associated with IEEE ICDE 2006

From: Seaborne, Andy <andy.seaborne@hp.com>
Date: Thu, 13 Apr 2006 12:33:10 +0100
Message-ID: <443E36F6.5080707@hp.com>
To: Sven Groppe <Sven.Groppe@deri.org>
CC: 'RDF Data Access Working Group' <public-rdf-dawg@w3.org>



Sven Groppe wrote:
> 
> 
> I was last week on the IEEE ICDE conference.
>  
> Cristian P´erez de Laborda gave
> some feedback of SparQL at the
> "Semantic Web and Databases" workshop
> associated with IEEE ICDE 2006
> while presenting his paper
> 
> “Bringing Relational Data into the Semantic Web using SPARQL and
> Relational.OWL”. Among other things,
> he presented how to translate SparQL
> into SQL.

Presentation:
http://lsdis.cs.uga.edu/swdb06/program/2006-04-08__PeCo_SWDB2006.pdf

Puts {} round every triple pattern.

rdfs:seeAlso <http://www.hpl.hp.com/techreports/2005/HPL-2005-170.html>

> 
> He is of the opinion that following items are currently missing
> in SparQL, but would be nice to have:
> -          nested queries
> -          grouping data
> -          update functionality
> -          string manipulation

Were there thing that can't be done with extension functions?  I've added a 
few to ARQ (at Lee's and Elias's request).

> 
> Sven.

Thanks for reporting the feedback.  All those would be nice if we had the time 
so it is useful input into any future work.

	Andy
Received on Thursday, 13 April 2006 11:33:24 GMT

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