Hi Holger,
> In TBC I did not implement option 1 due to performance reasons. If we
> would have to distinguish same objects, then we would need to walk
> through a complete result set, while if we just accumulate statistics
> then it's enough to just ask the triple store for the number of
> matches - an operation that is significantly faster than walking
> through them all.
>
Yes, I understand.
Is it a potential shortcut that you filter based on a namespace.
SELECT count(?subject)
WHERE {
?subject a :Something .
FILTER (afn:namespace(?subject) = 'http://something/')
}
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