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  1. IMPALA
  2. IMPALA-8891

concat_ws() null handling is non-standard

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    Details

    • Type: Bug
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: Impala 3.2.0, Impala 3.3.0
    • Fix Version/s: None
    • Component/s: Backend
    • Labels:

      Description

      Greg Rahn reports

      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)

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            • Assignee:
              Unassigned
              Reporter:
              tarmstrong Tim Armstrong
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              Dates

              • Created:
                Updated: