- From: Birte Glimm <birte.glimm@comlab.ox.ac.uk>
- Date: Sun, 7 Feb 2010 13:43:27 +0000
- To: SPARQL Working Group <public-rdf-dawg@w3.org>
Hi all, for the entailment regimes we still have some open issues, but we discussed them in the entailment regimes teleconf on 13 Nov 2009 and I believe most can be closed. [ISSUE 28]: Entailment regimes vs. update? Section 9 of the entailment doc addresses this. The section says that systems that do use an entailment regime other than simple entailment can support update queries, but they don't have to. If they do support update queries, then the exact behavior is not covered by the spec and implementers can describe the system behavior in the system's documentation. I believe the issue can be closed. [ISSUE 34]: How do entailment regimes interaction with aggregates, grouping, and blank nodes? This was initially unclear because we were not sure how blank nodes would be handled. Since it s now clear that only blank nodes from the originally queried graph can be returned as answers (they are implicitly skolemized), the spec now clearly defines how counting, aggregates, and grouping works. I believe this issue can be closed. [ISSUE 40]: How can other entailment regimes plug in their semantics to SPARQL/Update? same as Issue 28 above [ISSUE 42]: TF-ENT What should happen for RDFS entailment in the face of inconsistencies? The current spec says that systems MAY raise an error and SHOULD do so if they encounter an inconsistency. Users cannot force a consistency check. [ISSUE 43]: should entailment-regimes be declared over the whole dataset or individual graphs? This issue relates mainly to service descriptions. At the moment SDs cannot describe endpoints that have some graphs with inferences and some graphs without. Such configurations will occur, but maybe it is just not part of SDs for now. If we agree that entailment regimes are per end-point for SPARQL 1.1, we can close this issue. Cheers, Birte -- Dr. Birte Glimm, Room 306 Computing Laboratory Parks Road Oxford OX1 3QD United Kingdom +44 (0)1865 283529
Received on Sunday, 7 February 2010 13:44:00 UTC