Canope Nerda created FLINK-29692:
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             Summary: Support early/late fires for Windowing TVFs
                 Key: FLINK-29692
                 URL: https://issues.apache.org/jira/browse/FLINK-29692
             Project: Flink
          Issue Type: Improvement
          Components: Table SQL / Planner
    Affects Versions: 1.15.2
            Reporter: Canope Nerda


I have cases where I need to 1) output data as soon as possible and 2) handle 
late arriving data to achieve eventual correctness. In the logic, I need to do 
window deduplication which is based on Windowing TVFs and according to source 
code, early/late fires are not supported yet in Windowing TVFs.

Actually 1) contradicts with 2). Without early/late fires, we had to 
compromise, either live with fresh incorrect data or tolerate excess latency 
for correctness.



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