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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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