Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/3574#discussion_r106958710
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/plan/nodes/datastream/DataStreamOverAggregate.scala
---
@@ -150,12 +160,71 @@ class DataStreamOverAggregate(
inputType,
false)
- inputDS
-
.process(processFunction).setParallelism(1).setMaxParallelism(1)
- .returns(rowTypeInfo)
- .name(aggOpName)
- .asInstanceOf[DataStream[Row]]
- }
+ inputDS
+ .process(processFunction).setParallelism(1).setMaxParallelism(1)
+ .returns(rowTypeInfo)
+ .name(aggOpName)
+ .asInstanceOf[DataStream[Row]]
+ }
+ result
+ }
+
+ def createBoundedAndCurrentRowProcessingTimeOverWindow(
+ inputDS: DataStream[Row]): DataStream[Row] = {
+
+ val overWindow: Group = logicWindow.groups.get(0)
+ val partitionKeys: Array[Int] = overWindow.keys.toArray
+ val namedAggregates: Seq[CalcitePair[AggregateCall, String]] =
generateNamedAggregates
+
+ // get the output types
+ val rowTypeInfo =
FlinkTypeFactory.toInternalRowTypeInfo(getRowType).asInstanceOf[RowTypeInfo]
+
+ // window size is lowerbound +1 to comply with over semantics
+ val lowerbound: Int = AggregateUtil.getLowerBoundary(
+ logicWindow.constants,
+ overWindow.lowerBound,
+ getInput()) + 1
+
+ val (aggFunction, accumulatorRowType, aggResultRowType) =
+ AggregateUtil.createDataStreamOverAggregateFunction(
+ namedAggregates,
+ inputType,
+ rowRelDataType,
+ partitionKeys)
+ val aggString = aggregationToString(
--- End diff --
`aggString` is not used.
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