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Posted to issues-all@impala.apache.org by "Tim Armstrong (Jira)" <ji...@apache.org> on 2019/08/23 23:57:00 UTC

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

Tim Armstrong created IMPALA-8891:
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             Summary: 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


[~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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