sunjincheng created FLINK-7025:
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Summary: Using NullByteKeySelector for Unbounded ProcTime
NonPartitioned Over
Key: FLINK-7025
URL: https://issues.apache.org/jira/browse/FLINK-7025
Project: Flink
Issue Type: Bug
Reporter: sunjincheng
Assignee: sunjincheng
Currently we added `Cleanup State` feature. But It not work well if we enabled
the stateCleaning on Unbounded ProcTime NonPartitioned Over window, Because in
`ProcessFunctionWithCleanupState` we has using the keyed state.
So, In this JIRA. I'll change the `Unbounded ProcTime NonPartitioned Over` to
`partitioned Over` by using NullByteKeySelector. OR created a
`NonKeyedProcessFunctionWithCleanupState`. But I think the first way is
simpler. What do you think? [~fhueske]
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