Github user tillrohrmann commented on a diff in the pull request:
https://github.com/apache/flink/pull/1856#discussion_r62310212
--- Diff:
flink-java/src/main/java/org/apache/flink/api/java/functions/SelectByMinFunction.java
---
@@ -72,8 +73,8 @@ public T reduce(T value1, T value2) throws Exception {
for (int position : fields) {
// Save position of compared key
// Get both values - both implement comparable
- Comparable comparable1 =
value1.getFieldNotNull(position);
- Comparable comparable2 =
value2.getFieldNotNull(position);
+ Comparable comparable1 =
((Tuple)value1).getFieldNotNull(position);
--- End diff --
The `CaseClassTypeInfo` is the type information which is created for Scala
tuples, if I'm not mistaken. And all Scala tuples are of type `Product`. With
that you should be able to adapt the `SelectByMax/MinFunction`.
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