Hi
I just want to check the behaviour of language tags on SPARQL queries in
regard to case sensitivity. In Fuseki 3.16.0 if I run this query:
INSERT DATA {
<http://example.com> <http://test.com> "TEST" .
<http://example.com> <http://test.com> "TEST"@en-US .
<http://example.com> <http://test.com> "TEST"@en-us .
}
This inserts three triples. My interpretation is that this should only
insert two triples (with language tags normalised to lower case).
After running the above insert the following query returns three results,
not two:
SELECT * {
?s ?p ?o
}
Similarly, updates trying to delete the triples seem to be case
sensitive on the language tags. So if I then run the following query only
two triples are deleted:
DELETE DATA {
<http://example.com> <http://test.com> "TEST" .
<http://example.com> <http://test.com> "TEST"@en-us .
}
When we try the insert query above in both MarkLogic and GraphDB we get
just two triples.
Is my interpretation of language tag handling incorrect?
Regards
--
Paul Appleby
Graphifi
graphifi.com
Company No. 12034454
VAT Registration No. 328 1956 82
