Github user dongjoon-hyun commented on the issue:
https://github.com/apache/spark/pull/13730
Hi, @tdas .
At first look, I thought this corner case throws exceptions.
But, after considering more carefully, I want to allow
`emptyDataFrame.write`.
That is more natural way to handle this corner case because the user didn't
give partition columns.
How do you think about this?
(Anyway, I will update this PR for further discussion)
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