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From "Hudson (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-2223) support grouping on complex types in Hive
Date Mon, 17 Oct 2011 23:03:10 GMT

    [ https://issues.apache.org/jira/browse/HIVE-2223?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13129322#comment-13129322
] 

Hudson commented on HIVE-2223:
------------------------------

Integrated in Hive-trunk-h0.21 #1016 (See [https://builds.apache.org/job/Hive-trunk-h0.21/1016/])
    HIVE-2223. support grouping on complex types in Hive
(Jonathan Chang via jvs)

jvs : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1185311
Files : 
* /hive/trunk/ql/src/test/queries/clientpositive/groupby_complex_types.q
* /hive/trunk/ql/src/test/results/clientpositive/groupby_complex_types.q.out
* /hive/trunk/serde/src/java/org/apache/hadoop/hive/serde2/objectinspector/ObjectInspectorUtils.java
* /hive/trunk/serde/src/test/org/apache/hadoop/hive/serde2/objectinspector/TestStandardObjectInspectors.java

                
> support grouping on complex types in Hive
> -----------------------------------------
>
>                 Key: HIVE-2223
>                 URL: https://issues.apache.org/jira/browse/HIVE-2223
>             Project: Hive
>          Issue Type: New Feature
>          Components: Query Processor
>            Reporter: Kate Ting
>            Assignee: Jonathan Chang
>            Priority: Minor
>             Fix For: 0.9.0
>
>         Attachments: HIVE-2223.patch, HIVE-2223.patch.2, HIVE-2223.patch.3
>
>
> Creating a query with a GROUP BY statement when an array type column is part of the column
list is not yet supported:
> CREATE TABLE test_group_by ( key INT, group INT, terms ARRAY<STRING>);
> SELECT key, terms, count(group) FROM test_group_by GROUP BY key, terms;
> ...
> "Hash code on complex types not supported yet."
> java.lang.RuntimeException: Error while closing operators
> at org.apache.hadoop.hive.ql.exec.ExecMapper.close(ExecMapper.java:232)
> at org.apache.hadoop.mapred.MapRunner.run(MapRunner.java:57)
> at org.apache.hadoop.mapred.MapTask.runOldMapper(MapTask.java:356)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:305)
> at org.apache.hadoop.mapred.Child.main(Child.java:170)
> Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: java.lang.RuntimeException:
Hash code on complex types not supported yet.
> at org.apache.hadoop.hive.ql.exec.GroupByOperator.closeOp(GroupByOperator.java:799)
> at org.apache.hadoop.hive.ql.exec.Operator.close(Operator.java:462)
> at org.apache.hadoop.hive.ql.exec.Operator.close(Operator.java:470)
> at org.apache.hadoop.hive.ql.exec.Operator.close(Operator.java:470)
> at org.apache.hadoop.hive.ql.exec.Operator.close(Operator.java:470)
> at org.apache.hadoop.hive.ql.exec.ExecMapper.close(ExecMapper.java:211)
> ... 4 more
> Caused by: java.lang.RuntimeException: Hash code on complex types not supported yet.
> at org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorUtils.hashCode(ObjectInspectorUtils.java:348)
> at org.apache.hadoop.hive.ql.exec.ReduceSinkOperator.processOp(ReduceSinkOperator.java:187)
> at org.apache.hadoop.hive.ql.exec.Operator.process(Operator.java:386)
> at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:598)
> at org.apache.hadoop.hive.ql.exec.GroupByOperator.forward(GroupByOperator.java:746)
> at org.apache.hadoop.hive.ql.exec.GroupByOperator.closeOp(GroupByOperator.java:780)
> ... 9 more

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