[jira] [Created] (HIVE-12706) Incorrect output from from_utc_timestamp()/to_utc_timestamp when local timezone has DST

[Jason Dere (JIRA)]

Jason Dere created HIVE-12706:
---------------------------------

             Summary: Incorrect output from 
from_utc_timestamp()/to_utc_timestamp when local timezone has DST
                 Key: HIVE-12706
                 URL: https://issues.apache.org/jira/browse/HIVE-12706
             Project: Hive
          Issue Type: Bug
          Components: UDF
            Reporter: Jason Dere
            Assignee: Jason Dere


Getting wrong output with the local timezone set to PST (which has DST). I 
don't think this happens when the local timezone does not observe DST.

{noformat}
select from_utc_timestamp('2015-03-28 17:00:00', 'Europe/London')
2015-03-28 17:00:00

select from_utc_timestamp('2015-03-28 18:00:00', 'Europe/London')
2015-03-28 19:00:00  <= Wrong, should be 2015-03-28 18:00:00

select from_utc_timestamp('2015-03-28 19:00:00', 'Europe/London')
2015-03-28 20:00:00 <= Wrong, should be 2015-03-28 19:00:00
{noformat}

Also to_utc_timestamp():
{noformat}
select to_utc_timestamp('2015-03-28 17:00:00', 'Europe/London')
2015-03-28 17:00:00

select to_utc_timestamp('2015-03-28 18:00:00', 'Europe/London')
2015-03-28 17:00:00 <= Wrong

select to_utc_timestamp('2015-03-28 19:00:00', 'Europe/London')
2015-03-28 18:00:00 <= Wrong

select to_utc_timestamp('2015-03-28 20:00:00', 'Europe/London')
2015-03-28 19:00:00 <= Wrong
{noformat}



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