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  1. MariaDB Server
  2. MDEV-2688

LP:737474 - Wrong result with DAY(COALESCE(NULL)) in 5.1-micro

        Details

        • Type: Bug
        • Status: Closed
        • Priority: Major
        • Resolution: Fixed
        • Affects Version/s: None
        • Fix Version/s: None
        • Component/s: None
        • Labels:

          Description

          Not repeatable in mysql-5.1

          DAY(NULL) is NULL and COALESCE(NULL) is NULL, so DAY(COALESCE(NULL)) should also be NULL. However, 5.1-micro returns 0 instead.

          MySQL [test]> select DAY(COALESCE(NULL));
          ---------------------

          DAY(COALESCE(NULL))

          ---------------------

          0

          ---------------------
          1 row in set (0.00 sec)

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                ratzpo Rasmus Johansson added a comment -

                Launchpad bug id: 737474

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                ratzpo Rasmus Johansson added a comment - Launchpad bug id: 737474

                  People

                  • Assignee:
                    serg Sergei Golubchik
                    Reporter:
                    philipstoev Philip Stoev
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                    • Created:
                      Updated:
                      Resolved: