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Posted to issues@hive.apache.org by "Stamatis Zampetakis (Jira)" <ji...@apache.org> on 2022/05/24 14:01:00 UTC
[jira] [Commented] (HIVE-25268) date_format udf returns wrong results for dates prior to 1900 if the local timezone is other than UTC
[ https://issues.apache.org/jira/browse/HIVE-25268?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17541480#comment-17541480 ]
Stamatis Zampetakis commented on HIVE-25268:
--------------------------------------------
If I am not wrong this issue strongly depends upon HIVE-25093 in two ways:
* the problem described here cannot be reproduced unless HIVE-25093 is in place
* the code changes assume that HIVE-25093 is committed
[~gupta.nikhil0007] can you please confirm that what I wrote above makes sense?
> date_format udf returns wrong results for dates prior to 1900 if the local timezone is other than 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, timestamp
> Fix For: 4.0.0, 4.0.0-alpha-1
>
> Time Spent: 9h 40m
> 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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