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HIVE-708 added RecordReader, but it is hardcoding a "RecordWriter" that uses newline for Text and write out data directly for BytesWritable.
We should make this configurable as well.
Rename serde/serdeFormat etc in Hive.g for readability
Move ql/.../ql/util/typedbytes and ql/.../ql/exec/TypedBytesRecordReader.java to contrib
Add TypedBytes SerDe for transform