[
https://issues.apache.org/jira/browse/HIVE-25653?focusedWorklogId=698566&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-698566
]
ASF GitHub Bot logged work on HIVE-25653:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 20/Dec/21 10:42
Start Date: 20/Dec/21 10:42
Worklog Time Spent: 10m
Work Description: ashish-kumar-sharma commented on pull request #2897:
URL: https://github.com/apache/hive/pull/2897#issuecomment-997806060
@zabetak @sankarh Could you please review the PR?
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Issue Time Tracking
-------------------
Worklog Id: (was: 698566)
Time Spent: 1h 20m (was: 1h 10m)
> 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
> Components: UDF
> Affects Versions: 3.1.0, 3.1.2
> Reporter: Ashish Sharma
> Assignee: Ashish Sharma
> Priority: Major
> Labels: pull-request-available
> Fix For: 4.0.0
>
> Time Spent: 1h 20m
> 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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