beyond1920 commented on a change in pull request #16024:
URL: https://github.com/apache/flink/pull/16024#discussion_r643086398
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File path:
flink-table/flink-table-planner-blink/src/main/scala/org/apache/flink/table/planner/plan/rules/FlinkStreamRuleSets.scala
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@@ -374,6 +374,8 @@ object FlinkStreamRuleSets {
PythonCorrelateSplitRule.INSTANCE,
// merge calc after calc transpose
FlinkCalcMergeRule.INSTANCE,
+ // remove output of rank number when it is not used by successor calc
+ RedundantRankNumberColumnRemoveRule.INSTANCE,
Review comment:
Because rank rules works in logical phase in batch, and works in
physical phase in stream.
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