Nice idea for syntax.
Jonathan and I will be working on some sort of macro syntax for
SPARQL, which would make this and a lot of other queries be a lot
nicer to write.
The Virtuoso folks are willing to implement a prototype. If it works
out then perhaps it can be proposed for SPARQL 2.
More news about it when we have something, hopefully in the next
couple of months...
-Alan
On May 17, 2007, at 9:05 AM, Eric Jain wrote:
Alan Ruttenberg wrote:
> prefix dc: <http://purl.org/dc/elements/1.1/>
> prefix sc: <http://purl.org/science/owl/sciencecommons/>
> select ?s ?p ?o ?by
> from <http://purl.org/commons/hcls/proto>
> where
> { ?s ?p ?o.
> ?statement rdf:type rdf:Statement.
> ?statement rdf:subject ?s.
> ?statement rdf:predicate ?p.
> ?statement rdf:object ?o.
> ?statement dc:creator ?by
> }
That's precisely what I'm talking about :-) Now imagine a query
that's already complicated to start with, even without any
reification...
If reification was directly supported, you'd expect something like
this:
prefix dc: <http://purl.org/dc/elements/1.1/>
prefix sc: <http://purl.org/science/owl/sciencecommons/>
select ?s ?p ?o ?by
from <http://purl.org/commons/hcls/proto>
where { ?s ?p ?o [ dc:creator ?by ] }
