Hi all,
I had to use blank nodes for objects that do not
have a dereferenceable http uri. I imported a data set with geo:lat and
geo:long
coordinates in Fuseki 1.1.1 then I created the Lucence index as
described in the doc about Jena Spatial. I run a query on the imported data
using the spatial:nearby function
?airport spatial:nearby (52.45 -1.74 10 'km') .
?airport rdfs:label ?name
but the returned result was empty. Then I removed the clause with the
rdfs:label predicate and Fuseki returned a value for ?airport. This
value is different from the bnode assigned by Fuseki during the import
and that is why the above query returned no results. I reported an issue (
JENA-802 ) on the Apache issue tracker for Jena.
Regards
Luigi
"It is easy to be certain. One only has to be sufficiently vague" C.S. Peirce
_______________________________
Luigi Selmi, MSc
Senior ResearcherBern University of Applied SciencesE-Government
InstituteBrückenstrasse 733005 BernSwitzerland
