Github user aljoscha commented on the pull request:
https://github.com/apache/flink/pull/1414#issuecomment-160956025
Ah, I see you changed it to my (wrong) suggestion. @ChengXiangLi Do you
want to change it back to your initial version (plus maybe the fix for the
naming and cleanExpr). Or should it be changed when adding support for null
values?
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