Jane Chan created FLINK-34060:
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Summary: Migrate UserDefinedTableAggFunctions to
JavaUserDefinedTableAggFunctions
Key: FLINK-34060
URL: https://issues.apache.org/jira/browse/FLINK-34060
Project: Flink
Issue Type: Technical Debt
Components: Table SQL / Runtime
Affects Versions: 1.19.0
Reporter: Jane Chan
Assignee: Jane Chan
The issue is discovered when testing FLINK-31788.
The Top3 function emits a tuple of (entry.getKey, entry.getKey)
[UserDefinedTableAggFunctions.scala#L127|https://github.com/apache/flink/blob/907d0f32126b9f8acfc80f3f4098e71cb37f0e37/flink-table/flink-table-planner/src/test/scala/org/apache/flink/table/planner/utils/UserDefinedTableAggFunctions.scala#L127],
which is peculiar.
Meanwhile, consider getting the scala-free goal; it's time to migrate this
class to the `JavaUserDefinedTableAggFunctions`, and revisit the implementation.
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