Github user fhueske commented on the pull request:
https://github.com/apache/flink/pull/1255#issuecomment-155431001
Thanks for the fast update @ChengXiangLi! I added a few comments, mostly
regarding the shipping strategies, data exchange modes, and object
instantiations. I think, we're almost there. After the next update, I'll play
around with range partitioning on a cluster and see how it performs. We might
want to add a few more tests, esp. to ensure the plan rewriting performs well.
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