Github user wuchong commented on a diff in the pull request:
https://github.com/apache/flink/pull/3176#discussion_r99566482
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/codegen/CodeGenerator.scala
---
@@ -220,56 +247,105 @@ class CodeGenerator(
// manual casting here
val samHeader =
// FlatMapFunction
- if (clazz == classOf[FlatMapFunction[_,_]]) {
+ if (clazz == classOf[FlatMapFunction[_, _]]) {
--- End diff --
Make sense to me. I missed the case of `ScalarFunction` before.
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