Github user wuchong commented on a diff in the pull request:
https://github.com/apache/flink/pull/4105#discussion_r124171844
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/api/TableEnvironment.scala
---
@@ -358,20 +358,27 @@ abstract class TableEnvironment(val config:
TableConfig) {
* Registers an [[AggregateFunction]] under a unique name. Replaces
already existing
* user-defined functions under this name.
*/
- private[flink] def registerAggregateFunctionInternal[T: TypeInformation,
ACC](
+ private[flink] def registerAggregateFunctionInternal[T: TypeInformation,
ACC: TypeInformation](
name: String, function: AggregateFunction[T, ACC]): Unit = {
// check if class not Scala object
checkNotSingleton(function.getClass)
// check if class could be instantiated
checkForInstantiation(function.getClass)
- val typeInfo: TypeInformation[_] = implicitly[TypeInformation[T]]
+ val resultTypeInfo: TypeInformation[_] = implicitly[TypeInformation[T]]
+ val accTypeInfo: TypeInformation[_] = implicitly[TypeInformation[ACC]]
// register in Table API
functionCatalog.registerFunction(name, function.getClass)
// register in SQL API
- val sqlFunctions = createAggregateSqlFunction(name, function,
typeInfo, typeFactory)
+ val sqlFunctions = createAggregateSqlFunction(
--- End diff --
Ping @fhueske , what do you think about this?
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