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Posted to issues@hive.apache.org by "Jesus Camacho Rodriguez (JIRA)" <ji...@apache.org> on 2017/10/27 00:40:01 UTC
[jira] [Commented] (HIVE-12745) Hive Timestamp value change after
joining two tables
[ https://issues.apache.org/jira/browse/HIVE-12745?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16221513#comment-16221513 ]
Jesus Camacho Rodriguez commented on HIVE-12745:
------------------------------------------------
[~srajat], [~397090770], have you been able to reproduce this consistently? I am trying to reproduce in another environment but so far no luck.
> Hive Timestamp value change after joining two tables
> ----------------------------------------------------
>
> Key: HIVE-12745
> URL: https://issues.apache.org/jira/browse/HIVE-12745
> Project: Hive
> Issue Type: Bug
> Affects Versions: 1.2.1
> Reporter: wyp
> Assignee: Dmitry Tolpeko
> Priority: Critical
> Labels: timestamp
>
> I have two Hive tables:test and test1:
> {code}
> CREATE TABLE `test`( `t` timestamp)
> CREATE TABLE `test1`( `t` timestamp)
> {code}
> they all holds a t value with Timestamp datatype,the contents of the two table as follow:
> {code}
> hive> select * from test1;
> OK
> 1970-01-01 00:00:00
> 1970-03-02 00:00:00
> Time taken: 0.091 seconds, Fetched: 2 row(s)
> hive> select * from test;
> OK
> 1970-01-01 00:00:00
> 1970-01-02 00:00:00
> Time taken: 0.085 seconds, Fetched: 2 row(s)
> {code}
> However when joining this two table, the returned timestamp value changed:
> {code}
> hive> select test.t, test1.t from test, test1;
> OK
> 1969-12-31 23:00:00 1970-01-01 00:00:00
> 1970-01-01 23:00:00 1970-01-01 00:00:00
> 1969-12-31 23:00:00 1970-03-02 00:00:00
> 1970-01-01 23:00:00 1970-03-02 00:00:00
> Time taken: 54.347 seconds, Fetched: 4 row(s)
> {code}
> and I found the result is changed every time
> {code}
> hive> select test.t, test1.t from test, test1;
> OK
> 1970-01-01 00:00:00 1970-01-01 00:00:00
> 1970-01-02 00:00:00 1970-01-01 00:00:00
> 1970-01-01 00:00:00 1970-03-02 00:00:00
> 1970-01-02 00:00:00 1970-03-02 00:00:00
> Time taken: 26.308 seconds, Fetched: 4 row(s)
> {code}
> Any suggestion? Thanks
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