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https://issues.apache.org/jira/browse/HIVE-10488?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14519997#comment-14519997
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Alexander Pivovarov commented on HIVE-10488:
--------------------------------------------
Got it! Thank you.
BTW, I remember it was one issue with date to timestamp conversion for negative
unix time HIVE-10178. But it is fixed already and has nothing to do with Orc.
{code}
select cast(cast('1966-01-01 00:00:01' as timestamp) as date);
1966-02-02
{code}
> cast DATE as TIMESTAMP returns incorrect values
> -----------------------------------------------
>
> Key: HIVE-10488
> URL: https://issues.apache.org/jira/browse/HIVE-10488
> Project: Hive
> Issue Type: Bug
> Components: SQL
> Affects Versions: 0.13.1
> Reporter: N Campbell
> Assignee: Chaoyu Tang
>
> same data in textfile works
> same data loaded into an ORC table does not
> connection property of tez/mr makes no difference.
> select rnum, cdt, cast (cdt as timestamp) from tdt
> 0 <null> <null>
> 1 1996-01-01 1969-12-31 19:00:09.496
> 2 2000-01-01 1969-12-31 19:00:10.957
> 3 2000-12-31 1969-12-31 19:00:11.322
> vs
> 0 <null> <null>
> 1 1996-01-01 1996-01-01 00:00:00.0
> 2 2000-01-01 2000-01-01 00:00:00.0
> 3 2000-12-31 2000-12-31 00:00:00.0
> create table if not exists TDT ( RNUM int , CDT date )
> STORED AS orc ;
> insert overwrite table TDT select * from text.TDT;
> 0|\N
> 1|1996-01-01
> 2|2000-01-01
> 3|2000-12-31
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