On 2/23/12 7:07 AM, Carsten Keßler 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 Company Web: http://www.openlinksw.com Personal Weblog: http://www.openlinksw.com/blog/~kidehen Twitter/Identi.ca handle: @kidehen Google+ Profile: https://plus.google.com/112399767740508618350/about LinkedIn Profile: http://www.linkedin.com/in/kidehen
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