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https://issues.apache.org/jira/browse/HIVE-21349?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16898722#comment-16898722
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Piotr Findeisen commented on HIVE-21349:
----------------------------------------

Do i understand correctly that {{TIMESTAMP WITHOUT TIME ZONE}} is going to be 
an alias for {{TIMESTAMP}}?
I.e. it's not going to be distinguishable whether I declared a column as 
"{{TIMESTAMP}}" or "{{TIMESTAMP WITHOUT TIME ZONE}}"?

> TIMESTAMP WITHOUT TIME ZONE
> ---------------------------
>
>                 Key: HIVE-21349
>                 URL: https://issues.apache.org/jira/browse/HIVE-21349
>             Project: Hive
>          Issue Type: Task
>            Reporter: Zoltan Ivanfi
>            Priority: Major
>
> As specified in the [design doc for TIMESTAMP 
> types|https://cwiki.apache.org/confluence/display/Hive/Different+TIMESTAMP+types],
>  the TIMESTAMP WITHOUT TIME ZONE type shall behave like the 
> [LocalDateTime|https://docs.oracle.com/javase/8/docs/api/java/time/LocalDateTime.html]
>  class of Java, i.e., each value is a recording of what can be seen on a 
> calendar and a clock hanging on the wall, for example "1969-07-20 16:17:39". 
> It can be decomposed into year, month, day, hour, minute and seconds fields, 
> but with no time zone information available, it does not correspond to any 
> specific point in time.
> This behaviour is consistent with the SQL standard (revisions 2003 and 
> higher).



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