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From "Xuefu Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-14305) To/From UTC timestamp may return incorrect result because of DST
Date Mon, 25 Jul 2016 21:13:20 GMT

    [ https://issues.apache.org/jira/browse/HIVE-14305?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15392682#comment-15392682
] 

Xuefu Zhang commented on HIVE-14305:
------------------------------------

Does SPARK-16078 offer any idea for Hive?

> To/From UTC timestamp may return incorrect result because of DST
> ----------------------------------------------------------------
>
>                 Key: HIVE-14305
>                 URL: https://issues.apache.org/jira/browse/HIVE-14305
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Rui Li
>            Assignee: Rui Li
>
> If the machine's local timezone involves DST, the UDFs return incorrect results.
> For example:
> {code}
> select to_utc_timestamp('2005-04-03 02:01:00','UTC');
> {code}
> returns {{2005-04-03 03:01:00}}. Correct result should be {{2005-04-03 02:01:00}}.
> {code}
> select to_utc_timestamp('2005-04-03 10:01:00','Asia/Shanghai');
> {code}
> returns {{2005-04-03 03:01:00}}. Correct result should be {{2005-04-03 02:01:00}}.



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