Hi Ivan, I will send the offending query shortly; i need to collect all the relevant info first.
In the meantime, could you point to some resources where some detail is given about the query analyser that is available in the sparql client in the sparql demo ? I mean, http://localhost:8890/sparql_demo/ Regards Rajeev J Sebastian On Feb 2, 2008 1:41 PM, Ivan Mikhailov <imikhai...@openlinksw.com> wrote: > Hello Rajeev, > > It is quite probable that this change in pattern results in global > change in join order of the execution plan of the query. For accurate > diagnostics I need to know the full text of the query and some > statistics about the data set -- total number of quads, number of > distinct graphs, distinct objects. If graph is not constant in the query > I also need to know whether additional indexes are created. > > Best Regards, > Ivan Mikhailov, > OpenLink Software. > > > On Sat, 2008-02-02 at 02:46 +0530, Rajeev J Sebastian wrote: > > Hi Ivan and friends, > > > > I have a query, which takes an unusual amount of time - as far as I > > can tell, it never completes! > > > > When I remove a triple from the where pattern i.e., > > > > ?s ?p <some iri> . > > > > > > and replace it with > > > > ?s ?p ?d . > > > > It executes immediately and returns a response. > > > > How can I make this faster ? > > > > Regards > > Rajeev J Sebastian > >
