Rui Li created HIVE-9574:
----------------------------

             Summary: Lazy computing in HiveBaseFunctionResultList may hurt 
performance [Spark Branch]
                 Key: HIVE-9574
                 URL: https://issues.apache.org/jira/browse/HIVE-9574
             Project: Hive
          Issue Type: Sub-task
          Components: Spark
            Reporter: Rui Li


{{RowContainer.first}} may call {{InputFormat.getSplits}}, which is expensive. 
If we switch {{container}} and {{backupContainer}} frequently in 
{{HiveKVResultCache}}, it will downgrade performance.



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