Github user asfgit closed the pull request at:
https://github.com/apache/spark/pull/14909
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GitHub user cloud-fan opened a pull request:
https://github.com/apache/spark/pull/14909
revert PR#10896 and PR#14865
## What changes were proposed in this pull request?
according to the discussion in the original PR #10896 and the new approach
PR #14876 , we decided to
