On 12/08/12 02:46, Holger Knublauch wrote:
...
but we and our customers have an unknown number of queries in
production
...
TQ gets Jena for free. What would help is if TQ tested against the
nightly snapshot builds especially just before a release. The project
makes available development builds at all times so we can deal with such
issues early, before a release.
I believe TQ will need to raise this issue with the SPARQL 1.1 WG
again, although it seems we are very late in the process.
You are, of course, welcome to.
Referring to specification text would strengthen your case. Referring
to implementation bugs is, IMO, not a strong case. They happen, that's
life.
Using the sub-query form will remove duplicating BIND statements.
Sub-queries allow applying BIND after FILTER.
And yes, optimizing the FILTER placement would be great and would
remove some of the pain and allow query authors to improve query
performance.
I've raised JENA-293 to track this optimization. Please submit a patch.
https://issues.apache.org/jira/browse/JENA-293
Thanks, Holger
Andy
