Github user sunjincheng121 commented on the issue:
https://github.com/apache/flink/pull/4061
Hi, @wuchong Thanks for your reviewing. I meant from the perspective of
grammar is allow batch table source to implement the `DefinedProctimeAttribute`
and `DefinedRowtimeAttribute`. We are on the same page about `batch table
source do not needs DefinedRowtimeAttribute`.
Thanks,
SunJincheng
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