Github user rajeshbalamohan commented on the issue:
https://github.com/apache/spark/pull/14537
Right, for Parquet this could be part of initial codebase (from Spark-1251
I believe) which merges any metastore conflicts with parq files. But in the
case of ORC, this inference is still valid as the column names stored in old
ORC format could be different from that of Hive Metastore (e.g HIVE-4243).
There is a separate PR:https://github.com/apache/spark/pull/14471 which track
the ORC compatibility issue.
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