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  1. MariaDB Server
  2. MDEV-7001

Bad result for NOT NOT STRCMP('a','b') and NOT NOT NULLIF(2,3)

Details

    • Bug
    • Status: Closed (View Workflow)
    • Major
    • Resolution: Fixed
    • 5.5.40, 10.0.14, 5.3.13
    • 10.0.15
    • Character Sets
    • None

    Description

      SELECT NOT NOT STRCMP('a','b');

      returns

      +-------------------------+
      		 
      | NOT NOT STRCMP('a','b') |
      		 
      +-------------------------+
      		 
      |                      -1 |
      		 
      +-------------------------+
      		 
      1 row in set (0.00 sec)

      The expected result is 1.

      The same problem is observed with NOT NOT NULLIF(2,3).

      mysql> SELECT NOT NOT NULLIF(2,3);
      		 
      +---------------------+
      		 
      | NOT NOT NULLIF(2,3) |
      		 
      +---------------------+
      		 
      |                   2 |
      		 
      +---------------------+
      		 
      1 row in set (0.00 sec)

      The expected result is 1.

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            bar Alexander Barkov
            bar Alexander Barkov
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            Dates

              Created:
              Updated:
              Resolved:

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