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From heary-cao <...@git.apache.org>
Subject [GitHub] spark issue #20699: [SPARK-23544][SQL]Remove redundancy ShuffleExchange in t...
Date Tue, 06 Mar 2018 02:25:45 GMT
Github user heary-cao commented on the issue:

    https://github.com/apache/spark/pull/20699
  
    @cloud-fan , 
    `+- Exchange hashpartitioning(b#204, c#205, 5)` it was produced by` EnsureRequirement#apply`.
    so we can't clean up `EnsureRequirement#apply `after this PR.
    thanks.



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