[python][RDF] Handle the creation of an empty RDataFrame in _MakeNumpyDataFrame #18585
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This Pull request:
Changes or fixes:
This PR introduces logic to detect and handle the creation of empty RDataframes from empty numpy arrays, as long as the array's
dtype
is supported byRVec
, see the docs.As explained on the issue's thread, the issue's reproducer will still not work with this PR.
Checklist:
This PR fixes #18581