Github user hhbyyh commented on the pull request:
https://github.com/apache/spark/pull/11078#issuecomment-216459924
I've conducted benchmark and compare the performance with/without the
change.
As I tested, there's no consistent improvement on memory/time consumption
observed from applying the change. There's a little improvement(2%) on average
time/memory consumption yet I cannot eliminate the possibility that it's from
the execution environment error.
Close the PR and thanks a lot for the review and discussion.
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