Github user robbinspg commented on the pull request: https://github.com/apache/spark/pull/10628#issuecomment-204684533 So big endian implementations of OffHeapColumnVector and OnHeapColumnVector are needed. I don't think we'd want to have an inline 'if (bigEndian)' in the relevent methods so it may be that we'd want to subclass those classes, override the methods which require handling big endian, and instantiate the big endian version in ColumnVector.allocate if on a BE platform? xxxHeapColumnVector classes would have to lose the 'final' attribute.
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