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Posted to issues@tajo.apache.org by "Seungun Choe (JIRA)" <ji...@apache.org> on 2014/03/04 06:47:20 UTC

[jira] [Updated] (TAJO-378) Implement concat_ws function.

     [ https://issues.apache.org/jira/browse/TAJO-378?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Seungun Choe updated TAJO-378:
------------------------------

    Attachment: TAJO-378_1.patch

> Implement concat_ws function.
> -----------------------------
>
>                 Key: TAJO-378
>                 URL: https://issues.apache.org/jira/browse/TAJO-378
>             Project: Tajo
>          Issue Type: New Feature
>          Components: function/udf
>    Affects Versions: 0.8-incubating
>            Reporter: Seungun Choe
>            Assignee: Seungun Choe
>            Priority: Minor
>             Fix For: 0.8-incubating
>
>         Attachments: TAJO-378.patch, TAJO-378_1.patch
>
>
> This function's definition is, concat_ws(sep text, str "any" [, str "any" [, ...] ]).
> For example, concat_ws(',', 'abcde', 2, NULL, 22)'s result is abcde,2,22.
> Detailed description is "Concatenate all but first arguments with separators. The first parameter is used as a separator. NULL arguments are ignored.".  



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