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From "Harish Butani (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-7539) streaming windowing UDAF seems to be broken without Partition Spec
Date Tue, 29 Jul 2014 15:17:39 GMT

    [ https://issues.apache.org/jira/browse/HIVE-7539?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14077818#comment-14077818
] 

Harish Butani commented on HIVE-7539:
-------------------------------------

+1 lgtm

> streaming windowing UDAF seems to be broken without Partition Spec
> ------------------------------------------------------------------
>
>                 Key: HIVE-7539
>                 URL: https://issues.apache.org/jira/browse/HIVE-7539
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Laljo John Pullokkaran
>            Assignee: Harish Butani
>         Attachments: HIVE-7539.1.patch.txt
>
>
> {code:sql}
> select  avg(c_int) over(rows between 1 PRECEDING and current row) from t1
> {code}
> results in 
> {noformat}
> :1}}
> 	at org.apache.hadoop.hive.ql.exec.mr.ExecReducer.reduce(ExecReducer.java:271)
> 	... 9 more
> Caused by: java.lang.NullPointerException
> 	at org.apache.hadoop.hive.ql.udf.generic.GenericUDAFAverage$GenericUDAFAverageEvaluatorDouble$1.getNextResult(GenericUDAFAverage.java:180)
> 	at org.apache.hadoop.hive.ql.udf.generic.GenericUDAFAverage$GenericUDAFAverageEvaluatorDouble$1.getNextResult(GenericUDAFAverage.java:166)
> 	at org.apache.hadoop.hive.ql.udf.generic.GenericUDAFStreamingEvaluator$SumAvgEnhancer.iterate(GenericUDAFStreamingEvaluator.java:166)
> 	at org.apache.hadoop.hive.ql.udf.generic.GenericUDAFEvaluator.aggregate(GenericUDAFEvaluator.java:185)
> 	at org.apache.hadoop.hive.ql.udf.ptf.WindowingTableFunction.processRow(WindowingTableFunction.java:348)
> 	at org.apache.hadoop.hive.ql.exec.PTFOperator$PTFInvocation.processRow(PTFOperator.java:318)
> 	at org.apache.hadoop.hive.ql.exec.PTFOperator.processOp(PTFOperator.java:131)
> 	at org.apache.hadoop.hive.ql.exec.Operator.forward(Operator.java:800)
> 	at org.apache.hadoop.hive.ql.exec.ExtractOperator.processOp(ExtractOperator.java:45)
> 	at org.apache.hadoop.hive.ql.exec.mr.ExecReducer.reduce(ExecReducer.java:262)
> 	... 9 more
> {noformat}



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