Github user aljoscha commented on a diff in the pull request:
https://github.com/apache/flink/pull/4722#discussion_r141272559
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/state/KeyedStateBackend.java
---
@@ -37,6 +39,12 @@
void setCurrentKey(K newKey);
/**
+ * @return Stream of existing keys in the namespace.
--- End diff --
Nit: This could be changed to "Returns a stream of all keys for the given
state and namespace.". The first parameter should be renamed to `state` or
something like it because `field` is not used anywhere else, I think.
---
