Github user ueshin commented on the pull request:
https://github.com/apache/spark/pull/1373#issuecomment-48781530
@marmbrus Yes, I think so.
But this new behavior is the same as Avro, Thrift and the next Hive (0.14).
To load the string data saved with previous versions, `Cast` to
`StringType` will be needed.
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