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From "Xiaowei Wang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-14918) Function concat_ws get a wrong value
Date Sun, 09 Oct 2016 06:50:20 GMT
Xiaowei Wang created HIVE-14918:
-----------------------------------

             Summary: Function concat_ws get a wrong value  
                 Key: HIVE-14918
                 URL: https://issues.apache.org/jira/browse/HIVE-14918
             Project: Hive
          Issue Type: Bug
          Components: UDF
    Affects Versions: 2.0.1, 2.1.0, 2.0.0, 1.1.1
            Reporter: Xiaowei Wang
            Assignee: Xiaowei Wang
            Priority: Critical
             Fix For: 2.1.0


FROM src INSERT OVERWRITE TABLE dest1 SELECT 'abc', 'xyz', '8675309'  WHERE src.key = 86;

SELECT concat_ws('.',NULL)  FROM dest1 ;

The result is a empty  string "",but I think it should be return NULL .



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