Paolo Castagna wrote: > I don't thing there is something more we can do from the point of view of the > query engine. > If someone has good ideas on this, I am all ear. > > Views are an option (== a sort of internal cache).
Another related thread from jena-dev (although a different performance related problem): "Maybe a materialized view [1] would be the solution here? It could maintain caching for these types of queries without having to have a whole separate index. Since ontology information is probably rarely updated, it would seem like a good fit. -Stephen [1] http://en.wikipedia.org/wiki/Materialized_view" -- http://markmail.org/message/zz3bpogalfgo2eri Paolo
