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From "Namit Jain (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-2332) If all of the parameters of distinct functions are exists in group by columns, query fails in runtime
Date Thu, 08 Dec 2011 18:03:39 GMT

    [ https://issues.apache.org/jira/browse/HIVE-2332?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13165374#comment-13165374
] 

Namit Jain commented on HIVE-2332:
----------------------------------

Navis, please use the following instructions in future for patches 
https://cwiki.apache.org/Hive/phabricatorcodereview.html.

We are planning to move to phabricator from review board.

I have already done this for this jira.
Will review it soon.

                
> If all of the parameters of distinct functions are exists in group by columns, query
fails in runtime
> -----------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-2332
>                 URL: https://issues.apache.org/jira/browse/HIVE-2332
>             Project: Hive
>          Issue Type: Bug
>          Components: Query Processor
>            Reporter: Navis
>            Assignee: Navis
>            Priority: Critical
>             Fix For: 0.9.0
>
>         Attachments: HIVE-2332.1.patch.txt, HIVE-2332.2.patch.txt, HIVE-2332.D663.1.patch
>
>
> select sum(key_int1), sum(distinct key_int1) from t1 group by key_int1;
> fails with message..
> {code}
> FAILED: Execution Error, return code 2 from org.apache.hadoop.hive.ql.exec.MapRedTask
> {code}
> hadoop says..
> {code}
> Caused by: java.lang.IndexOutOfBoundsException: Index: 1, Size: 1
> 	at java.util.ArrayList.RangeCheck(ArrayList.java:547)
> 	at java.util.ArrayList.get(ArrayList.java:322)
> 	at org.apache.hadoop.hive.serde2.objectinspector.StandardStructObjectInspector.init(StandardStructObjectInspector.java:95)
> 	at org.apache.hadoop.hive.serde2.objectinspector.StandardStructObjectInspector.(StandardStructObjectInspector.java:86)
> 	at org.apache.hadoop.hive.serde2.objectinspector.ObjectInspectorFactory.getStandardStructObjectInspector(ObjectInspectorFactory.java:252)
> 	at org.apache.hadoop.hive.ql.exec.ReduceSinkOperator.initEvaluatorsAndReturnStruct(ReduceSinkOperator.java:188)
> 	at org.apache.hadoop.hive.ql.exec.ReduceSinkOperator.processOp(ReduceSinkOperator.java:197)
> 	at org.apache.hadoop.hive.ql.exec.Operator.process(Operator.java:471)
> 	at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:744)
> 	at org.apache.hadoop.hive.ql.exec.TableScanOperator.processOp(TableScanOperator.java:85)
> 	at org.apache.hadoop.hive.ql.exec.Operator.process(Operator.java:471)
> 	at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:744)
> 	at org.apache.hadoop.hive.ql.exec.MapOperator.process(MapOperator.java:532)
> {code}
> I think the deficient number of key expression, compared to number of key column, is
the problem, which should be equal or more. 
> Would it be solved if add some key expression? I'll try.

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