Github user lincoln-lil commented on a diff in the pull request:
https://github.com/apache/flink/pull/3733#discussion_r111958225
--- Diff: flink-core/src/main/java/org/apache/flink/types/Row.java ---
@@ -46,6 +46,9 @@
/** The array to store actual values. */
private final Object[] fields;
+ /** Indicate to add or delete this row */
+ public Command command = Command.Add;
--- End diff --
I think change to private and offer getter/setter will be more better.
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