Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/3423#discussion_r103729741
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/runtime/aggregate/AggregateReduceGroupFunction.scala
---
@@ -95,11 +110,14 @@ class AggregateReduceGroupFunction(
output.setField(after, last.getField(previous))
}
- // get the final aggregate value and set it to output.
+ // get final aggregate value and set to output.
aggregateMapping.foreach {
- case (after, previous) =>
+ case (after, previous) => {
val agg = aggregates(previous)
- output.setField(after,
agg.getValue(agg.merge(accumulatorList(previous))))
+ val accumulator = agg.merge(accumulatorList(previous))
+ val result = aggregates(previous).getValue(accumulator)
--- End diff --
`aggregates(previous)` -> `agg`
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