[GitHub] [flink] leonardBang commented on a change in pull request #15247: [FLINK-21833][Table SQL / Runtime] TemporalRowTimeJoinOperator.java will lead to the state expansion by short-life-cycle & huge RowData, although config idle.state.retention.time

[GitBox]

leonardBang commented on a change in pull request #15247:
URL: https://github.com/apache/flink/pull/15247#discussion_r603460702



##########
File path: 
flink-table/flink-table-runtime-blink/src/main/java/org/apache/flink/table/runtime/operators/join/temporal/TemporalRowTimeJoinOperator.java
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@@ -209,6 +209,7 @@ public void onEventTime(InternalTimer<Object, 
VoidNamespace> timer) throws Excep
                 registerProcessingCleanupTimer();
             } else {
                 cleanupLastTimer();
+                nextLeftIndex.clear();

Review comment:
       why change here?




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