> > We have talked about this before - with the idea of some functions which
> > could process (say a line string with measures) into a multi line string of
> > all the sections that match the requested threads hold ( in your example
> > time ranges).
> >
>
>
>
>
> The (filter) functions were the first thing that came to mind to me as well,
> but it's a dead end: what I need is to slice the returned
> geometry, and Query does not allow to extract expressions, just property
> names.
>
>
>
I had in mind applying the function as part of your style - but no matter I see
your point.
Jody
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