Github user zentol commented on a diff in the pull request:
https://github.com/apache/flink/pull/4337#discussion_r128276458
--- Diff:
flink-java/src/main/java/org/apache/flink/api/java/sca/TaggedValue.java ---
@@ -46,7 +50,10 @@
NULL // null
}
- public static enum Input {
+ /**
+ * Inputs types.
--- End diff --
This is a bit misleading, I believe these are used a tags to remember which
input they belong to for 2 input operators (like coGroup for example). They may
have the same type though ;)
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