On Wed, 2011-10-05 at 11:22 +0100, Paolo Castagna wrote:
> Dave Reynolds wrote:
> > If you just want to list the properties and classes that are used then
> > you can do things like:
> >
> > SELECT DISTINCT ?p WHERE {?s ?p ?o.}
> >
> > SELECT DISTINCT ?cls WEHRE {?i a ?cls.}
>
> Any idea to speed up these two queries (for large TDB datasets) is welcome!
> :-)I nearly put a comment in that response that those can be very expensive queries :) Dave
