yangping wu created HIVE-12745:
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Summary: 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
Components: hpl/sql
Affects Versions: 1.2.1
Reporter: yangping wu
Assignee: Dmitry Tolpeko
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}
Any suggestion? Thanks
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