walterddr commented on a change in pull request #7237: [FLINK-7209] [table]
Support DataView in Tuple and Case Class as the ACC type of AggregateFunction
URL: https://github.com/apache/flink/pull/7237#discussion_r242392503
##########
File path:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/functions/utils/UserDefinedFunctionUtils.scala
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@@ -489,6 +491,88 @@ object UserDefinedFunctionUtils {
)
}
+ def decorateDataViewTypeInfo(
+ fieldTypeInfo: TypeInformation[_],
+ fieldInstance: AnyRef,
+ field: Field): (TypeInformation[_], Option[DataViewSpec[_]]) =
fieldTypeInfo match {
+ case ct: CompositeType[_] if includesDataView(ct) =>
+ throw new TableException(
+ "MapView and ListView only supported at first level of accumulators
of Pojo, Tuple " +
+ "and Case Class type.")
+ case map: MapViewTypeInfo[_, _] =>
+ val mapView = fieldInstance.asInstanceOf[MapView[_, _]]
+ val newTypeInfo = if (mapView != null && mapView.keyTypeInfo != null &&
+ mapView.valueTypeInfo != null) {
+ new MapViewTypeInfo(mapView.keyTypeInfo, mapView.valueTypeInfo)
+ } else {
+ map
+ }
+
+ if (isStateBackedDataViews) {
Review comment:
I was wondering if this is ever needed. since the test case added in this PR
doesn't cover this code path on the else case.
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