Github user HyukjinKwon commented on a diff in the pull request: https://github.com/apache/spark/pull/21546#discussion_r204324646 --- Diff: python/pyspark/serializers.py --- @@ -184,27 +184,67 @@ def loads(self, obj): raise NotImplementedError -class ArrowSerializer(FramedSerializer): +class BatchOrderSerializer(Serializer): --- End diff -- @BryanCutler, just read https://github.com/apache/spark/pull/21546#issuecomment-400824224. How much performance gain was made by this? Looks pretty complicated..
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