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Re: Metadata about single triples

From: Kingsley Idehen <kidehen@openlinksw.com>
Date: Thu, 23 Feb 2012 07:26:35 -0500
Message-ID: <4F46307B.1030409@openlinksw.com>
To: public-lod@w3.org
On 2/23/12 7:07 AM, Carsten Ke▀ler wrote:
> Dear Kingsley,
>
>>> But this is what (most?) triple stores do with the default graph in the
>>> absence of FROM/NAMED clauses in queries anyway. (Certainly this is the
>>> Sesame approach, followed by OWLIM.)
>> Not so re. Virtuoso. The Graph IRIs don't matter. Only used them if you
>> explicitly seek to constrain the dataset from which you seek a SPARQL based
>> solution.
> This is the behavior we want to have. In most cases, we'll have
> queries that select the named graphs to query from via their metadata.
> E.g. "give me all reports about food distributions reported on
> 2011-12-15 by organization XY", where the reporting data and reporting
> organization would be metadata of our named graphs.
>
>> Same data across different Graph IRIs != duplication.
> This was essentially one of my questions. Is this the case only for Virtuoso?
>
> Carsten
>
>

I would hope this is the case for any quad store .

-- 

Regards,

Kingsley Idehen	
Founder&  CEO
OpenLink Software
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Received on Thursday, 23 February 2012 12:27:02 UTC

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