Hi again ! I've got another problem : I can't delete my triples !
(note : I'm using Virtuoso Version 7.1.1-dev.3211-pthreads ) This works (creates and then delete the triple) : INSERT INTO GRAPH <http://mygraph/> { <http://mygraph/#myitem> <http://www.w3.org/2000/01/rdf-schema#label> "Blabla" . } DELETE FROM GRAPH <http://mygraph/> { <http://mygraph/#myitem > <http://www.w3.org/2000/01/rdf-schema#label> "Blabla" . } But this doesn't work (the triple is created, but not deleted, with no error) : INSERT INTO GRAPH <http://mygraph/> { <http://mygraph/#austrian_lot_source_1> <http://www.opengis.net/ont/geosparql#geometry> "MULTIPOLYGON(((0.0 0.0,1.0 0.0,1.0 1.0,0.0 1.0,0.0 0.0)))"^^<http://www.openlinksw.com/schemas/virtrdf#Geometry> . } DELETE FROM GRAPH <http://mygraph/> { <http://mygraph/#austrian_lot_source_1> <http://www.opengis.net/ont/geosparql#geometry> "MULTIPOLYGON(((0.0 0.0,1.0 0.0,1.0 1.0,0.0 1.0,0.0 0.0)))"^^<http://www.openlinksw.com/schemas/virtrdf#Geometry> . } When selecting the triple, it seems some 0 have been appended to the WKT text. If I try to use that exact same WKT literal to delete the triple, it still doesn't delete the triple : DELETE FROM GRAPH <http://mygraph/> { <http://mygraph/#austrian_lot_source_1> <http://www.opengis.net/ont/geosparql#geometry> "MULTIPOLYGON(((0.000000 0.000000,1.000000 0.000000,1.000000 1.000000,0.000000 1.000000,0.000000 0.000000)))"^^<http://www.openlinksw.com/schemas/virtrdf#Geometry> . } In short, I don't know how to delete a particular triple of type < http://www.openlinksw.com/schemas/virtrdf#Geometry>... Is there something I'm missing ? Or did I hit a bug ? And just in case someone cares, I've been able to update the spatial index using DB.DBA.RDF_GEO_ADD more or less as explained here : http://docs.openlinksw.com/virtuoso/rdfsparqlgeospat.html#rdfsparqlgeospatcrg (16.15.1) Thanks a lot for your help ! Olivier Dalang --- Digital Humanities Lab (DHLAB) - http://dhlab.epfl.ch EPFL CDH DHLAB / CM 2 271 Station 10 / CH-1015 Lausanne Tel. +41 21 693 02 46
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