Github user dawidwys commented on the issue:
https://github.com/apache/flink/pull/4331
Hi @yestinchen
Thanks for your feedback.
Right now, I just want to address the empty match issue. It is not easy to
apply that definition to unbounded data. In the SQL specification at the end of
partition we can deterministically decide if a partial match is empty or not.
It is not the case in unbounded data, as future arriving events may make the
partial matches empty.
Those are the nuances I think should be addressed first, but I agree there
are many similarities.
I will try to address rest later during the day, but I think we should
continue in the JIRA.
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