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https://issues.apache.org/jira/browse/HIVE-14305?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16224307#comment-16224307
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Rui Li commented on HIVE-14305:
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Hi [~rdblue], the {{timestamp with time zone}} type is added via HIVE-14412.
But it doesn't change the UDFs mentioned here so I suppose the issue is still
valid. As [suggested by
Ashutosh|https://issues.apache.org/jira/browse/HIVE-14412?focusedCommentId=15968447&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15968447],
we'll represent {{timestamp}} with {{java.time.LocalDateTime}} instead of
{{java.sql.Timestamp}}, which should eventually fix the issue.
> 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
> Labels: timestamp
>
> 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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