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