Github user aljoscha commented on a diff in the pull request:
https://github.com/apache/flink/pull/4659#discussion_r138918167
--- Diff:
flink-core/src/main/java/org/apache/flink/api/java/functions/KeySelector.java
---
@@ -36,7 +37,7 @@
public interface KeySelector<IN, KEY> extends Function, Serializable {
/**
- * User-defined function that extracts the key from an arbitrary object.
+ * User-defined function that extracts the key from an deterministic
object.
--- End diff --
I think this should be `User-defined function that deterministically
extracts the key from an object.`
---
