jnh5y commented on code in PR #25380:
URL: https://github.com/apache/flink/pull/25380#discussion_r1773603139
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flink-table/flink-table-planner/src/main/scala/org/apache/flink/table/planner/plan/nodes/physical/stream/StreamPhysicalDeduplicate.scala:
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@@ -30,9 +30,10 @@ import org.apache.calcite.rel.{RelNode, RelWriter, SingleRel}
import java.util
/**
- * Stream physical RelNode which deduplicate on keys and keeps only first row
or last row. This node
- * is an optimization of [[StreamPhysicalRank]] for some special cases.
Compared to
- * [[StreamPhysicalRank]], this node could use mini-batch and access less
state.
+ * TODO to be removed after FLINK-34702 is fixed. Stream physical RelNode
which deduplicate on keys
Review Comment:
Since this operator may be used in existing Flink jobs, I do not believe we
can remove it.
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