On 10/12/10 16:39, Benson Margulies wrote:
Protege persuaded me to put types in my Ontology. So (as viewed by
tdbdump), I have quads like:
<urn:basistech.com:analysis#9>
<http://www.basistech.com/ontologies/2010/6/rex.owl#hasOriginalText>
"Fredrick Chopin"^^<http://www.w3.org/2001/XMLSchema#string>
<urn:misc-test> .
should the following sparql match that?
SELECT ?x where { ?x
<http://www.basistech.com/ontologies/2010/6/rex.owl#hasOriginalText>
"Fredrick Chopin" }
Not in TDB. Simple literals (plain literals without language tag) do
not match xsd:string.
SELECT ?x where { ?x
<http://www.basistech.com/ontologies/2010/6/rex.owl#hasOriginalText>
"Fredrick Chopin"^^xsd:string
}
TDB could canonicalise the input to make "" and ""^^xsd:string the same.
Andy
