Github user gatorsmile commented on the issue:
https://github.com/apache/spark/pull/14537
I quickly checked the latest fixes. It is based on a few assumptions. For
example, the column order and length of metastore schema are the same as the
physical schema. I am not sure whether we can make such an assumption.
I saw the previously comment by @cloud-fan
https://github.com/apache/spark/pull/14365#issuecomment-236875668 in another PR
https://github.com/apache/spark/pull/14365.
Maybe we do not need to infer the schema in both cases. Just use the
metastore schema. If it does not match with the physical schema, we do not
convert Hive orc tables to data source tables.
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