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  1. Hive
  2. HIVE-19202

CBO failed due to NullPointerException in HiveAggregate.isBucketedInput()

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Details

    • Bug
    • Status: Closed
    • Critical
    • Resolution: Fixed
    • 2.1.1
    • 4.0.0-alpha-1
    • CBO
    • None

    Description

      I ran a query with join and group by with below settings, COB failed due to NullPointerException in HiveAggregate.isBucketedInput()

      set hive.execution.engine=tez;

      set hive.cbo.costmodel.extended=true;

       

      In class HiveRelMdDistribution, we implemented below functions:

      public RelDistribution distribution(HiveAggregate aggregate, RelMetadataQuery mq)

      public RelDistribution distribution(HiveJoin join, RelMetadataQuery mq)

       

      But in HiveAggregate.isBucketedInput, the argument passed to distribution is "this.getInput()"

      , obviously it's not right here. The right argument needed is "this"

      Attachments

        1. HIVE-19202.2.patch
          0.7 kB
          zhuwei
        2. HIVE-19202.1.patch
          0.7 kB
          zhuwei

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            qunyan zhuwei
            qunyan zhuwei
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            Dates

              Created:
              Updated:
              Resolved: