Hello all,
Is it possible to explain a named graph that appears to have gone into
hiding?
I have this named graph, let's call it myGraph, that functions well but
does not show up in listings. I can not see the graph in the Conductor
(Linked Data > Graphs). When I issue the SQL command
DB.DBA.SPARQL_SELECT_KNOWN_GRAPHS();
it's not there. Neither is it returned when I issue this SPARQL query:
SELECT DISTINCT ?gWHERE { GRAPH ?g { ?s ?p ?o } }
But if that query is changed slightly:
SELECT DISTINCT ?gWHERE { GRAPH ?g { ?s a ?o } }
The graph is there! Also the last query takes more time to execute.
SPARQL queries like
select * where { graph ?g {<myGraph> ?p ?o} }
or
describe <myGraph>
do function as expected, they return data from the graph.
So how could this be explained?
Greetings,
Frans
------------------------------------------------------------------------
Frans Knibbe
Geodan
President Kennedylaan 1
1079 MB Amsterdam (NL)
T +31 (0)20 - 5711 347
E frans.kni...@geodan.nl
www.geodan.nl <http://www.geodan.nl> | disclaimer
<http://www.geodan.nl/disclaimer>
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