Kjetil,
Ups, That's my fault, I've replied in the chat but did not notice you're
offline at that time.
IF
there's no FROM and no default-graph-uri parameter in web service
endpoint request
AND
there's no FROM NAMED and no named-graph-uri parameter
THEN
there's no restriction and all graphs are used.
IF
there's no FROM and no default-graph-uri parameter in web service
endpoint request
AND
there are FROM NAMED or named-graph-uri parameter
THEN
triples outside GRAPH ... {...} graph goup patterns never bind any
variables, as it is required by
http://www.w3.org/TR/rdf-sparql-query/#specifyingDataset
"If there is no FROM clause, but there is one or more FROM NAMED
clauses, then the dataset includes an empty graph for the default
graph."
Best Regards,
Ivan Mikhailov
OpenLink Software
http://virtuoso.openlinksw.com
On Thu, 2009-01-15 at 17:50 +0100, Kjetil Kjernsmo wrote:
> All,
>
> I've been reading
> http://docs.openlinksw.com/virtuoso/rdfapiandsql.html#rdfdefaultgraph
> but I'm still confused what the default graph is when none of these things
> are
> set. That is, I'm not sending a HTTP parameter, I have no FROM clauses, no
> define and nothing in DB.DBA.SYS_SPARQL_HOST.
>
> It appears not to return the query the whole merged graph, but I don't
> understand which subset it returns. It appears to return data from a few
> graphs.
>
> Perhaps I'm just blind, but I hope someone will help me see :-)
>
> Kind regards
>
> Kjetil Kjernsmo
