- From: Lee Feigenbaum <lee@thefigtrees.net>
- Date: Tue, 17 Mar 2009 13:40:02 -0400
- To: SPARQL Working Group <public-rdf-dawg@w3.org>
I'd like to start having some discussion of other query language features - we'll come back to them on the teleconference, but next week I think we might turn our attention to some other issues (construct maybe, or protocol issues). One thing that came up in IRC at one point was whether or not the property paths feature suggestion would cover the use cases in AccessingRdfLists. I believe the answer is "not easily", but wanted to bring it up here. This feature is about making it easy to query for members of an RDF list. ARQ supports this via a "property function" -- a URI that when used in a SPARQL triple pattern has semantics other than standard graph-pattern matching. EricP has a suggestion for an alternative way of doing this. My personal belief is that this is mildly useful, but not essential, and I'm a bit worried about the two potential approaches: + property functions seem to be somewhat "magical" in their behavior + new syntax that is not widely implemented always makes me nervous If I had to straw poll myself on this issue, I'd be a "0". Anyway, I'm interested in how others feel, any other implementation experience, and whether or not this feature can be accomplished via property paths. Lee
Received on Tuesday, 17 March 2009 17:40:44 UTC