danny0405 commented on a change in pull request #8966: 
[FLINK-13074][table-planner-blink] Add PartitionableTableSink bridge logic to 
flink&blink …
URL: https://github.com/apache/flink/pull/8966#discussion_r305356854
 
 

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 File path: 
flink-table/flink-table-planner/src/main/scala/org/apache/flink/table/api/internal/BatchTableEnvImpl.scala
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 @@ -133,6 +135,26 @@ abstract class BatchTableEnvImpl(
     }
   }
 
+  /**
+    * Key by the partition fields if the sink is a [[PartitionableTableSink]].
+    * @param sink    the table sink
+    * @param dataSet the data set
+    * @tparam R      the data set record type
+    * @return a data set that maybe keyed by.
+    */
+  private def mayKeyByPartitionFields[R](
 
 Review comment:
   Renamed to shuffleByPartitionFieldsIfNeeded.

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