Github user sihuazhou commented on a diff in the pull request:
https://github.com/apache/flink/pull/5518#discussion_r169993867
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/state/KeyedStateBackend.java
---
@@ -61,8 +61,9 @@
* over it keys are not supported.
* @param state State variable for which existing keys will be returned.
* @param namespace Namespace for which existing keys will be returned.
+ * @param namespaceSerializer the serializer for the namespace.
*/
- <N> Stream<K> getKeys(String state, N namespace);
+ <N> Stream<K> getKeys(String state, N namespace, TypeSerializer<N>
namespaceSerializer);
--- End diff --
Checked! It is me that misunderstand something. The `getPartitionedState
confused me, it just reset the `namespace` but not reset the
`namespaceSerializer` for the `previous` state. Please just ignore me...
Addressing this.
---
