Hi Hoan,
You can set the option on a pre query level using the SPARQL DEFINE
sql:log-enable X pragma as detailed at:
http://docs.openlinksw.com/virtuoso/rdfsparql.html#rdfsparqlimplementatioptragmasmnotes
Best Regards
Hugh Williams
Professional Services
OpenLink Software
Web:
I've gotten inferencing on inverseOf to work in Virtuoso, so that
DEFINE input:inference 'urn:ifs.ontology'
select ?o where {
X ifs:has-address ?o .
}
returns an address that's actually associated the other way with ifs:address-of.
However, if I try
DEFINE input:inference