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Posted to issues@impala.apache.org by "jichen (Jira)" <ji...@apache.org> on 2019/12/27 03:46:00 UTC

[jira] [Resolved] (IMPALA-8891) concat_ws() null handling is non-standard

     [ https://issues.apache.org/jira/browse/IMPALA-8891?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

jichen resolved IMPALA-8891.
----------------------------
    Resolution: Fixed

> concat_ws() null handling is non-standard
> -----------------------------------------
>
>                 Key: IMPALA-8891
>                 URL: https://issues.apache.org/jira/browse/IMPALA-8891
>             Project: IMPALA
>          Issue Type: Bug
>          Components: Backend
>    Affects Versions: Impala 3.2.0, Impala 3.3.0
>            Reporter: Tim Armstrong
>            Assignee: jichen
>            Priority: Major
>              Labels: newbie
>             Fix For: Impala 3.4.0
>
>
> [~grahn] reports
> {quote}Looks like Impala’s CONCAT_WS() does not behave correctly if an argument is NULL — it returns NULL and it should not.  Mismatch between Hive/MySQL and Impala (and apologies for not filing a bug)
> {quote}



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