Re: [Bigdata-developers] sparql: combining union, graph, construct

[Jean-Marc V. <jea...@gm...>]

>
> Hi
>
> I tried this query in latest BigData source code:
>


> CONSTRUCT {
>            ?thing ?p ?o .
>            ?s ?p1 ?thing .
>          }
>          WHERE {
>            { graph <http://jmvanel.free.fr/jmv.rdf#me>
>              { ?thing ?p ?o . }
>            } UNION {
>            graph ?GRAPH
>              { ?s ?p1 ?thing . }
>            }
> } LIMIT 100
>
> This maybe wrong wrt the spec.
> But it crashes in BigData,
> with a long exceptions chain that tells nothing .
>

Note that in Jena and Virtuoso (dbpedia), this pattern of query is accepted,
with unexpected results in Jena.


The database has been prepared with:
LOAD <http://jmvanel.free.fr/jmv.rdf#me> INTO GRAPH <
http://jmvanel.free.fr/jmv.rdf#me>
LOAD <http://danbri.org/foaf.rdf#danbri> INTO GRAPH <
http://danbri.org/foaf.rdf#danbri>


>
> --
> Jean-Marc Vanel
> Déductions SARL - Consulting, services, training,
> Rule-based programming, Semantic Web
> http://deductions-software.com/
> +33 (0)6 89 16 29 52
> Twitter: @jmvanel , @jmvanel_fr ; chat: irc://irc.freenode.net#eulergui
>



-- 
Jean-Marc Vanel
Déductions SARL - Consulting, services, training,
Rule-based programming, Semantic Web
http://deductions-software.com/
+33 (0)6 89 16 29 52
Twitter: @jmvanel , @jmvanel_fr ; chat: irc://irc.freenode.net#eulergui