xuyangzhong commented on code in PR #27111:
URL: https://github.com/apache/flink/pull/27111#discussion_r2454378842
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flink-table/flink-table-planner/src/main/java/org/apache/flink/table/planner/plan/nodes/exec/stream/StreamExecDeltaJoin.java:
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@@ -135,6 +140,10 @@ public class StreamExecDeltaJoin extends
ExecNodeBase<RowData>
@JsonProperty(FIELD_NAME_LEFT_JOIN_KEYS)
private final int[] leftJoinKeys;
+ @JsonProperty(FIELD_NAME_LEFT_UPSERT_KEY)
+ @JsonInclude(JsonInclude.Include.NON_NULL)
+ private final int[] leftUpsertKeys;
Review Comment:
Nice catch!
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