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From "Ryan Blue (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-12194) Daylight savings zones are not recognized (PDT, MDT)
Date Fri, 16 Oct 2015 17:05:05 GMT

    [ https://issues.apache.org/jira/browse/HIVE-12194?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14961008#comment-14961008
] 

Ryan Blue commented on HIVE-12194:
----------------------------------

The main thing to fix is HIVE-12195 so that these operations don't appear to work but return
the wrong data. I think what we need to do for this one is decide whether these common three-letter
zone abbreviations should be supported or left as-is.

> Daylight savings zones are not recognized (PDT, MDT)
> ----------------------------------------------------
>
>                 Key: HIVE-12194
>                 URL: https://issues.apache.org/jira/browse/HIVE-12194
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Hive
>    Affects Versions: 1.1.1
>            Reporter: Ryan Blue
>
> When I call the {{from_utc_timestamp}} function (or {{to_utc_timestamp}}) using my current
time zone, the result is incorrect:
> {code}
> // CURRENT SERVER TIME ZONE IS PDT
> hive> select to_utc_timestamp('2015-10-13 09:15:34.101', 'PDT');
> 2015-10-13 09:15:34.101 // NOT CHANGED!
> hive> select to_utc_timestamp('2015-10-13 09:15:34.101', 'PST');
> 2015-10-13 16:15:34.101 // CORRECT VALUE FOR PST
> {code}
> *UPDATE*: It appears that happens because the daylight savings zones are not recognized.



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