Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/3040#discussion_r104708548
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/plan/nodes/dataset/DataSetAggregate.scala
---
@@ -125,11 +126,25 @@ class DataSetAggregate(
.name(aggOpName)
}
else {
+ //Forward all fields at conversion
+ val inputInfo = mappedInput.getType
--- End diff --
An aggregation operator returns the grouping keys and aggregated values.
Only the grouping keys are not modified and forwarded. Forwarded fields can
only be assigned for grouped aggregates.
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