Github user cloud-fan commented on the issue:
https://github.com/apache/spark/pull/15983
@gatorsmile I think this behavior change is necessary for the new "Scalable
Partition Handling" feature. BTW, the table created by Spark 2.0 can still be
read by Spark 2.1 without `REPAIR TABLE`, and users can fall back to the old
behavior by turn off `spark.sql.hive.manageFilesourcePartitions`. So the
backward compatibility is still good.
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