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From "Xiaowei Wang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-14918) Function concat_ws get a wrong value
Date Sun, 09 Oct 2016 07:18:20 GMT

    [ https://issues.apache.org/jira/browse/HIVE-14918?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15559471#comment-15559471
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Xiaowei Wang commented on HIVE-14918:
-------------------------------------

Is this a problem ?
[~pxiong] [~speleato] [~ashutoshc] [~prasanth_j] [~thejas]

> 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: 1.1.1, 2.0.0, 2.1.0, 2.0.1
>            Reporter: Xiaowei Wang
>            Assignee: Xiaowei Wang
>            Priority: Critical
>             Fix For: 2.1.0
>
>         Attachments: HIVE-14918.0.patch
>
>
> 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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