Github user hustfxj commented on the issue:
https://github.com/apache/flink/pull/4111
@sunjincheng121 Sorry, I didn't get you. I think the column will not be
out of order If we delete the code. Because we already ensure that the index is
at the correct range by the previous
code `input1Mapping.contains(i)`. Let me know if I'm wrong. Thank you!
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