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https://issues.apache.org/jira/browse/HIVE-25268?focusedWorklogId=614640&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-614640
]
ASF GitHub Bot logged work on HIVE-25268:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 24/Jun/21 17:51
Start Date: 24/Jun/21 17:51
Worklog Time Spent: 10m
Work Description: sankarh commented on a change in pull request #2409:
URL: https://github.com/apache/hive/pull/2409#discussion_r658162341
##########
File path: ql/src/test/queries/clientpositive/udf_date_format.q
##########
@@ -78,3 +78,16 @@ select date_format("2015-04-08 10:30:45","yyyy-MM-dd
HH:mm:ss.SSS z");
--julian date
set hive.local.time.zone=UTC;
select date_format("1001-01-05","dd---MM--yyyy");
+
+--dates prior to 1900
+set hive.local.time.zone=Asia/Bangkok;
+select date_format('1400-01-14 01:01:10.123', 'yyyy-MM-dd HH:mm:ss.SSS z');
+select date_format('1800-01-14 01:01:10.123', 'yyyy-MM-dd HH:mm:ss.SSS z');
+
+set hive.local.time.zone=Europe/Berlin;
+select date_format('1400-01-14 01:01:10.123', 'yyyy-MM-dd HH:mm:ss.SSS z');
+select date_format('1800-01-14 01:01:10.123', 'yyyy-MM-dd HH:mm:ss.SSS z');
+
+set hive.local.time.zone=Africa/Johannesburg;
+select date_format('1400-01-14 01:01:10.123', 'yyyy-MM-dd HH:mm:ss.SSS z');
Review comment:
@guptanikhil007
I think, @zabetak point is what will be the interpretation of timezone for a
timestamp value stored in a table. Will it be treated as UTC or local timezone?
If local timezone, then will the output changes when we change the local
timezone config?
From the code, it seems `yes`. But, I guess, the behavior is same with
`SimpleDateFormat `as well. Pls confirm.
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Issue Time Tracking
-------------------
Worklog Id: (was: 614640)
Time Spent: 8.5h (was: 8h 20m)
> 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: 8.5h
> 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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