- From: Seaborne, Andy <andy.seaborne@hp.com>
- Date: Tue, 15 Mar 2005 16:04:47 +0000
- To: "Thompson, Bryan B." <BRYAN.B.THOMPSON@saic.com>
- Cc: "'public-rdf-dawg@w3.org'" <public-rdf-dawg@w3.org>
Thompson, Bryan B. wrote: > Hello, > > The example in 9.3 currently uses a URN (vs a URL) to specify the FROM > graphs (data:graph1, data:graph2). This seems like an error. > > PREFIX data: <urn:x-local:> > PREFIX foaf: <http://xmlns.com/foaf/0.1/> > Prefix dc: <http://purl.org/dc/elements/1.1/> > > SELECT ?name ?mbox ?date > WITH data:details > FROM data:graph1 data:graph2 > WHERE > ( ?g dc:publisher ?name) > ( ?g dc:date ?date ) > GRAPH ?g > { > ( ?person foaf:name ?name ) > ( ?person foaf:mbox ?mbox ) > } > > Thanks, > > -bryan > Bryan, It was intentional - the idea is to stress that they are local, internal identifiers allocated when the same URL is read at two different times (rsulting is two different graphs - the graph is changing). I guess that http://localhost (not good in my opinion- not unique) or urn:uuid: could also be used to emphasis this point or http://serversitename.com/id/1234 The working group resolved to remove WITH and FROM (i.e. the whole of section 9) at the face-to-face meeting to avoid overlap with the protocol. Thanks for noting it, Andy
Received on Tuesday, 15 March 2005 16:04:59 UTC