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  1. Hive
  2. HIVE-9249

java.lang.ClassCastException: org.apache.hadoop.hive.serde2.io.HiveVarcharWritable cannot be cast to org.apache.hadoop.hive.common.type.HiveVarchar when joining tables

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Details

    • Bug
    • Status: Closed
    • Critical
    • Resolution: Fixed
    • 0.14.0
    • 1.0.0
    • Vectorization
    • None
    • Hide
      HIVE-9249: Vectorization: Join involving CHAR/VARCHAR fails during execution. (Matt McCline, reviewed by Gopal V)
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      HIVE-9249 : Vectorization: Join involving CHAR/VARCHAR fails during execution. (Matt McCline, reviewed by Gopal V)

    Description

      VectorColumnAssignFactory doesn't handle HiveCharWritable / HiveVarcharWritable objects.

      Either:
      HiveVarcharWritable cannot be cast to ... HiveVarchar
      or
      HiveCharWritable cannot be cast to ... HiveChar

      Caused by: java.lang.ClassCastException: org.apache.hadoop.hive.serde2.io.HiveVarcharWritable cannot be cast to org.apache.hadoop.hive.common.type.HiveVarchar
      	at org.apache.hadoop.hive.ql.exec.vector.VectorColumnAssignFactory$17.assignObjectValue(VectorColumnAssignFactory.java:417)
      	at org.apache.hadoop.hive.ql.exec.vector.VectorMapJoinOperator.internalForward(VectorMapJoinOperator.java:196)
      	at org.apache.hadoop.hive.ql.exec.CommonJoinOperator.genAllOneUniqueJoinObject(CommonJoinOperator.java:670)
      	at org.apache.hadoop.hive.ql.exec.CommonJoinOperator.checkAndGenObject(CommonJoinOperator.java:748)
      	at org.apache.hadoop.hive.ql.exec.MapJoinOperator.processOp(MapJoinOperator.java:299)
      	... 24 more
      

      Attachments

        1. HIVE-9249.hive-14.patch
          88 kB
          Gopal Vijayaraghavan
        2. HIVE-9249.01.patch
          87 kB
          Matt McCline

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              mmccline Matt McCline
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                Created:
                Updated:
                Resolved: