hantiantian created SPARK-22157:
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Summary: The uniux_timestamp method handles the time field that is
lost in mill
Key: SPARK-22157
URL: https://issues.apache.org/jira/browse/SPARK-22157
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 2.2.0, 2.1.0, 2.0.2
Reporter: hantiantian
1、create table test,and execute the flowing command
select s1 from test;
result: 2014-10-10 19:30:10.222
2、when use the native unix_timestamp method, and execute the flowing command
select unix_timestamp(s1,"yyyy-MM-dd HH:mm:ss.SSS") from test;
result: 1412940610
Obviously，the mill part of the time field has been lost.
3、After repair，execute the command again
select unix_timestamp(s1,"yyyy-MM-dd HH:mm:ss.SSS") from test;
result: 1412940610.222
Conclusion：After repair, we can keep the the mill part of the time field.
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