HuangZhenQiu commented on code in PR #25440:
URL: https://github.com/apache/flink/pull/25440#discussion_r1798694472


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flink-runtime/src/main/java/org/apache/flink/streaming/api/lineage/DefaultLineageGraph.java:
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@@ -33,14 +33,15 @@
 @Internal
 public class DefaultLineageGraph implements LineageGraph {
     @JsonProperty private final List<LineageEdge> lineageEdges;
-    @JsonProperty private final List<SourceLineageVertex> sources;
-    @JsonProperty private final List<LineageVertex> sinks;
+    @JsonProperty private List<SourceLineageVertex> sources;
+    @JsonProperty private List<LineageVertex> sinks;
+    private final Set<SourceLineageVertex> deduplicatedSources;

Review Comment:
   Yes, it can be simplified with set only. Thanks for the feedback.



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