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https://issues.apache.org/jira/browse/HIVE-25268?focusedWorklogId=613881&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-613881
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ASF GitHub Bot logged work on HIVE-25268:
-----------------------------------------

                Author: ASF GitHub Bot
            Created on: 23/Jun/21 08:23
            Start Date: 23/Jun/21 08:23
    Worklog Time Spent: 10m 
      Work Description: ashish-kumar-sharma commented on pull request #2409:
URL: https://github.com/apache/hive/pull/2409#issuecomment-866635974


   @guptanikhil007 i have added few comments on all ready resolved 
conversation. Please have a look.


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

    Worklog Id:     (was: 613881)
    Time Spent: 6h 20m  (was: 6h 10m)

> date_format udf doesn't work for dates prior to 1900 if the timezone is 
> different from UTC
> ------------------------------------------------------------------------------------------
>
>                 Key: HIVE-25268
>                 URL: https://issues.apache.org/jira/browse/HIVE-25268
>             Project: Hive
>          Issue Type: Bug
>          Components: UDF
>    Affects Versions: 3.1.0, 3.1.1, 3.1.2, 4.0.0
>            Reporter: Nikhil Gupta
>            Assignee: Nikhil Gupta
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 4.0.0
>
>          Time Spent: 6h 20m
>  Remaining Estimate: 0h
>
> *Hive 1.2.1*:
> {code:java}
>  select date_format('1400-01-14 01:00:00', 'yyyy-MM-dd HH:mm:ss z');
> +--------------------------+--+
> |           _c0            |
> +--------------------------+--+
> | 1400-01-14 01:00:00 ICT  |
> +--------------------------+--+
> select date_format('1800-01-14 01:00:00', 'yyyy-MM-dd HH:mm:ss z');
> +--------------------------+--+
> |           _c0            |
> +--------------------------+--+
> | 1800-01-14 01:00:00 ICT  |
> +--------------------------+--+
> {code}
> *Hive 3.1, Hive 4.0:*
> {code:java}
> select date_format('1400-01-14 01:00:00', 'yyyy-MM-dd HH:mm:ss z');
> +--------------------------+
> |           _c0            |
> +--------------------------+
> | 1400-01-06 01:17:56 ICT  |
> +--------------------------+
> select date_format('1800-01-14 01:00:00', 'yyyy-MM-dd HH:mm:ss z');
> +--------------------------+
> |           _c0            |
> +--------------------------+
> | 1800-01-14 01:17:56 ICT  |
> +--------------------------+
> {code}
> VM timezone is set to 'Asia/Bangkok'



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