Github user HyukjinKwon commented on the issue:
https://github.com/apache/spark/pull/23052
@MaxGekk, actually this is kind of important behaviour change. This
basically means we're unable to read the empty files back. Similar changes were
proposed in Parquet few years ago (by me) and reverted.
We should better investigate and match the behaviours first across
datasources. IIRC, ORC does not create files (if that's not updated from what I
have checked long ago) but Parquet does.
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