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https://issues.apache.org/jira/browse/HIVE-12881?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aihua Xu resolved HIVE-12881.
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Resolution: Not A Problem
> Count() function over partitions doesn't work properly with ORDER BY
> ---------------------------------------------------------------------
>
> Key: HIVE-12881
> URL: https://issues.apache.org/jira/browse/HIVE-12881
> Project: Hive
> Issue Type: Bug
> Components: PTF-Windowing
> Affects Versions: 2.1.0
> Reporter: Aihua Xu
> Assignee: Aihua Xu
>
> The following query doesn't seem to return the correct result.
> {noformat}
> create table test (empno string, deptno string, level string, manager string);
> insert into test values ('1', '2', 'B', 'Else');
> insert into test values ('1', '2', 'B', 'Else');
> insert into test values ('2', '2', 'B', 'Other');
> select count( manager) over (partition by deptno, level order by manager)
> from test;
> {noformat}
> It returns
> {noformat}
> 2
> 2
> 3
> {noformat}
> Without ORDER BY, it returns correct result
> {noformat}
> 3
> 3
> 3
> {noformat}
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