Lourens
> My first intuition would say that a sparql query containing
>
> { _:hidden_bnode skos:prefLabel ?v1_lab .
> FILTER (_:hidden_bnode = iri(?:_uri)) }
>
> could be inefficient. Will Virtuoso internally optimize this into a query
> equivalent to { $:some_uri skos:prefLabel ?v1_lab. } ?Yes, of course it will. One can't make a functional SQL compiler without optimization of all sorts of equalities. Best Regards, Ivan Mikhailov OpenLink Software http://virtuoso.openlinksw.com
