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https://issues.apache.org/jira/browse/HIVE-25653?focusedWorklogId=678348&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-678348
 ]

ASF GitHub Bot logged work on HIVE-25653:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 08/Nov/21 06:54
            Start Date: 08/Nov/21 06:54
    Worklog Time Spent: 10m 
      Work Description: sankarh merged pull request #2760:
URL: https://github.com/apache/hive/pull/2760


   


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Issue Time Tracking
-------------------

    Worklog Id:     (was: 678348)
    Time Spent: 1h  (was: 50m)

> Incorrect results returned by STDDEV, STDDEV_SAMP, STDDEV_POP for floating 
> point data types.
> --------------------------------------------------------------------------------------------
>
>                 Key: HIVE-25653
>                 URL: https://issues.apache.org/jira/browse/HIVE-25653
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Ashish Sharma
>            Assignee: Ashish Sharma
>            Priority: Major
>              Labels: pull-request-available
>          Time Spent: 1h
>  Remaining Estimate: 0h
>
> Description
> *Script*- 
> create table test ( col1 int );
> insert into values 
> ('10230.72'),('10230.72'),('10230.72'),('10230.72'),('10230.72'),('10230.72'),('10230.72');
> select STDDEV_SAMP(col1) AS STDDEV_6M , STDDEV(col1) as STDDEV 
> ,STDDEV_POP(col1) as STDDEV_POP from test;
> *Result*- 
> STDDDEV_SAMP                            STDDEV                      
> STDDEV_POP 
> 5.940794514955821E-13     5.42317860890711E-13         5.42317860890711E-13
> *Expected*- 
> STDDDEV_SAMP                            STDDEV                      
> STDDEV_POP 
> 0                                                           0                 
>                0



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