Would it not make sense for the optimizer to convert to a form with the
intermediate variable?

Claude

On Mon, Jun 4, 2018, 2:37 PM Andy Seaborne <a...@apache.org> wrote:

> 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
> >
>

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