- From: David Booth <david@dbooth.org>
- Date: Tue, 13 Aug 2013 14:21:17 -0400
- To: Axel Polleres <axel@polleres.net>
- CC: Quentin Reul <Quentin.H.Reul@gmail.com>, semantic-web@w3.org, public-rdf-wg@w3.org, public-sparql-dev@w3.org
Hi Axel, That doesn't work in Sesame 2.7.1 at least, apparently because ?G is not bound, even though there is one solution. The SPARQL 1.1 spec says: http://www.w3.org/TR/sparql11-query/#emptyGroupPattern [[ The group pattern: { } matches any graph (including the empty graph) with one solution that does not bind any variables. ]] Is this a bug in the spec? David On 08/13/2013 11:48 AM, Axel Polleres wrote: > Hi Quentin, > > how about just > > SELECT ?G WHERE { GRAPH ?G {} } > > (no need to dump all triples, if the only concern is which ?G exist) > > BTW, public-sparql-dev@w3.org may be the list you wanted to use. > > best, > Axel >
Received on Tuesday, 13 August 2013 18:21:45 UTC