On 31/08/15 17:40, Andy Seaborne wrote:
On 31/08/15 13:07, Michael Schmidt wrote:
James, all,
thanks for your feedback. As I understand your response, you would agree
with my assessment of the expected query results — because in all cases
at least one of the variables is not bound in the respective scope, so
all queries return the empty result.
When it comes to the FILTER queries, there’s broad "agreement" amongst
the engines I tested. However, for queries 2a. and 2b. one can observe
that many (most) engines, amongst them Sesame and Jena, actually do
deliver answers. The same is true for a slight variant of 2b, which
pushes the variable bindings into a surrounding VALUES clause:
Any chance of filing a bug report?
https://issues.apache.org/jira/browse/JENA
(it looks an optimizer issue)
Andy
Michael kindly raised https://issues.apache.org/jira/browse/JENA-1018
Andy
