Github user yhuai commented on the pull request:
https://github.com/apache/spark/pull/6799#issuecomment-113321836
After second thought, I feel it is better to just drop those empty structs
and their corresponding values when we write data to parquet and log a warning
message. @NathanHowell How about we split the work. Can you add the flag we
talked about in this pr (the flag let us fall back to the 1.3 behavior of
inferring schema)? I can create another PR to add a project to remove those
empty structs in the parquet write path.
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