Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/3397#discussion_r104466819
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/runtime/aggregate/AggregateUtil.scala
---
@@ -93,6 +94,41 @@ object AggregateUtil {
}
/**
+ * Create an [[RichProcessFunction]] to evaluate final aggregate value.
+ *
+ * @param namedAggregates List of calls to aggregate functions and
their output field names
+ * @param inputType Input row type
+ * @param outputType Output row type
+ * @param forwardedFields All the forwarded fields
+ * @return [[UnboundedProcessingOverProcessFunction]]
+ */
+ private[flink] def CreateUnboundedProcessingOverProcessFunction(
+ namedAggregates: Seq[CalcitePair[AggregateCall, String]],
+ inputType: RelDataType,
+ outputType: RelDataType,
+ forwardedFields: Array[Int]): UnboundedProcessingOverProcessFunction =
{
+
+ val (aggFields, aggregates) =
+ transformToAggregateFunctions(
+ namedAggregates.map(_.getKey),
+ inputType,
+ forwardedFields.length)
+
+ val rowTypeInfo = new RowTypeInfo(outputType.getFieldList
+ .map(field => FlinkTypeFactory.toTypeInfo(field.getType)): _*)
+
+ val intermediateRowType: RowTypeInfo =
+ createDataSetAggregateBufferDataType(forwardedFields, aggregates,
inputType)
--- End diff --
We would need to add this dependency to the flink-table pom.xml
```
<dependency>
<groupId>org.apache.flink</groupId>
<artifactId>flink-statebackend-rocksdb_2.10</artifactId>
<version>${project.version}</version>
<scope>test</scope>
</dependency>
```
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