good afternoon. On 2 Oct 2013, at 12:27 PM, Andy Seaborne wrote:
with respect to part of the originally posed question: >> Rationale for the expectation is that FROM clause constructs union of the >> default graph and the graphs specified by FROM statements in the query, and >> then runs rest of the query against the union of graphs. >> >> However, experimentation results are different: The query returns an EMPTY >> result. >> Rationale for the obtained results is that query was run against each >> individual dataset and then the union of results is returned. > in particular, the expectation that the active graph include the default graph from the store, if the store were to contain PREFIX ex: <http://www.example.info> ex:ds1 { <ex:r><ex:p1><ex:o1> . } ex:ds2 { <ex:r><ex:p2><ex:o2> . } <ex:r><ex:p2><ex:o3> . would the posed query, PREFIX ex: <http://www.example.info> FROM <ex:ds1> FROM <ex:ds2> SELECT ?p ?o WHERE { <ex:r> ?p ?o . } include "<ex:p2><ex:o3> " ? --- james anderson | [email protected] | http://dydra.com
