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Posted to dev@hive.apache.org by "Chaoyu Tang (JIRA)" <ji...@apache.org> on 2013/12/19 15:46:08 UTC

[jira] [Created] (HIVE-6059) Add union type support in LazyBinarySerDe

Chaoyu Tang created HIVE-6059:
---------------------------------

             Summary: Add union type support in LazyBinarySerDe
                 Key: HIVE-6059
                 URL: https://issues.apache.org/jira/browse/HIVE-6059
             Project: Hive
          Issue Type: New Feature
          Components: File Formats
    Affects Versions: 0.12.0
            Reporter: Chaoyu Tang


We need the support to type union in LazyBinarySerDe, which is required to the join query with any union types in its select values. The reduce values in Join operation is serialized/deserialized using LazyBinarySerDe, otherwise we will see some errors like:
{code}
Caused by: java.lang.NullPointerException
at org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils.getStandardObjectInspector(ObjectInspectorUtils.java:106)
at org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils.getStandardObjectInspector(ObjectInspectorUtils.java:156)
at org.apache.hadoop.hive.ql.exec.JoinUtil.getStandardObjectInspectors(JoinUtil.java:98)
at org.apache.hadoop.hive.ql.exec.CommonJoinOperator.initializeOp(CommonJoinOperator.java:261)
at org.apache.hadoop.hive.ql.exec.JoinOperator.initializeOp(JoinOperator.java:61)
at org.apache.hadoop.hive.ql.exec.Operator.initialize(Operator.java:360)
at org.apache.hadoop.hive.ql.exec.ExecReducer.configure(ExecReducer.java:150)
{code}




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