appchemist commented on code in PR #18800:
URL: https://github.com/apache/kafka/pull/18800#discussion_r2173644002
##########
streams/src/main/java/org/apache/kafka/streams/kstream/internals/graph/GraphNode.java:
##########
@@ -27,12 +27,17 @@
import java.util.Optional;
public abstract class GraphNode {
-
+ private enum Repartition {
+ NOT_REQUIRED,
+ BY_KEY_ONLY,
+ ALWAYS_REQUIRED,
Review Comment:
[As mentioned
above](https://github.com/apache/kafka/pull/18800#discussion_r2173641799), we
can’t use `processNode.setKeyChangingOperation(true)`, but there was one case
where repartitioning was still required.
I’m still unsure about the naming of the `Repartition` enum. For now, I’ve
renamed `ALWAYS_REQUIRED` to `REQUIRED`.
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