>>> [...wedges...overlap...]
>> [...]
> Kinda. Jason and I have a difference of opinion on this. :-)

> I personally think we should permit overlapping wedges and enforce
> the no-overlap on open.  Jason, obviously, believes we should only
> have non-overlapping ones and thus no overlap problem.

Well, if you permit only non-overlapping wedges, what happens to the
functionality previously available from overlapping partitions?  Do we
lose it?  If so, that seems like a significant regression, to me.  If
not, where does it go?

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