- From: Jeen Broekstra <jeen.broekstra@aduna.biz>
- Date: Tue, 08 Nov 2005 13:28:56 +0100
- To: RDF Data Access Working Group <public-rdf-dawg@w3.org>
Steve Harris wrote: > On Tue, Nov 08, 2005 at 01:17:41AM -0600, Pat Hayes wrote: > >> But, I have to say, all this seems like overkill. The same effect >> can be got by sticking to the local option, and requiring the >> server to supplying a special URIref as an answer binding to >> indicate an 'anonymous' entity, along the lines suggested by Andy >> in >> >> http://lists.w3.org/Archives/Public/public-rdf-dawg/2005OctDec/0159.html. >> >> > > > I like this. > > It is what 3store has done for some years - originally it was a bug, > but I met with spritited objections when I said it was going to be > fixed, so I can report that users like it. Ditto for Sesame/SeRQL. Although the issue is slightly less foggy in SeRQL because it does not use bnodes-as-variables in the query syntax, we have introduced virtually the same trick, using _: as a 'special' namespace prefix to indicate bnode ids, which allows identifying bnodes over multiple queries (though with big flashing red letters in the documentation that this is not a good idea unless you know what you are doing). It makes querying lists and foaf profiles a heck of a lot easier. Jeen -- Jeen Broekstra Aduna BV Knowledge Engineer Julianaplein 14b, 3817 CS Amersfoort http://aduna.biz The Netherlands tel. +31 33 46599877
Received on Tuesday, 8 November 2005 13:26:43 UTC