Re: Jena Usage Report: Performance, bugs and feature requests

[Andy Seaborne]

Clause,

"qparse --print=opt"
Because by expansion of "/" you get a cross product BGP and the path 
blocks the optimizer (it does not get moved):

As reported:

         where {
            ?type rdfs:subClassOf owl:Thing . # No vars in common
            ?obj a ?X .                       # No vars in common
            ?X rdfs:subClassOf? ?type
         }

        Andy

On 04/06/18 18:20, Claude Warren wrote:
Andy,

Why does the non path where clause work better?

Claude