[jira] [Created] (FLINK-5983) Replace for/foreach/map in aggregates by while loops

[Shang Yuanchun (Jira)]

Timo Walther created FLINK-5983:
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             Summary: Replace for/foreach/map in aggregates by while loops
                 Key: FLINK-5983
                 URL: https://issues.apache.org/jira/browse/FLINK-5983
             Project: Flink
          Issue Type: Improvement
          Components: Table API & SQL
            Reporter: Timo Walther


Right now there is a mixture of different kinds of loops within aggregate functions. Although performance is not the main goal at the moment, we should focus on performant execution especially in this runtime functions.

e.g. {{DataSetTumbleCountWindowAggReduceGroupFunction}}

We should replace loops, maps etc. by primitive while loops.



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