Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/3491#discussion_r104874462
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/plan/nodes/datastream/DataStreamOverAggregate.scala
---
@@ -143,10 +143,18 @@ class DataStreamOverAggregate(
.name(aggOpName)
.asInstanceOf[DataStream[Row]]
}
- // global non-partitioned aggregation
+ // non-partitioned aggregation
else {
- throw TableException(
- "Non-partitioned processing time OVER aggregation is not
supported yet.")
+ val processFunction =
AggregateUtil.CreateUnboundedProcessingOverProcessFunction(
+ namedAggregates,
+ inputType,
+ false)
+
+ inputDS
+ .process(processFunction).setParallelism(1)
--- End diff --
also set max parallelism to prevent that parallelism is increased.
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