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  1. MariaDB Server
  2. MDEV-4654

Wrong warning for CAST(TIME('10:20:30') AS DATE) + INTERVAL 1 DAY

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    Description

      A confusing warning is printed in the following SQL script:

      mysql> select CAST(TIME('10:20:30') AS DATE) + INTERVAL 1 DAY; show warnings;
      		 
      +-------------------------------------------------+
      		 
      | CAST(TIME('10:20:30') AS DATE) + INTERVAL 1 DAY |
      		 
      +-------------------------------------------------+
      		 
      | NULL                                            |
      		 
      +-------------------------------------------------+
      		 
      1 row in set, 1 warning (0.00 sec)
      		 
       
      		 
      +---------+------+----------------------------------------------+
      		 
      | Level   | Code | Message                                      |
      		 
      +---------+------+----------------------------------------------+
      		 
      | Warning | 1292 | Truncated incorrect date value: '0000-00-00' |
      		 
      +---------+------+----------------------------------------------+
      		 
      1 row in set (0.00 sec)

      The word "Truncated" is not appropriate here.

      The expected warning is something like:
      "Incorrect datetime value: '0000-00:00 00:00:00'"
      or
      "Incorrect date value: '0000-00:00".

      A warning generated in MySQL-5.1 and 5.5 is also not perfect:
      Incorrect datetime value: '10:20:30'
      But at least does not contain the confusing word "Truncated".

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          is blocked by

          Bug - A problem which impairs or prevents the functions of the product. MDEV-8778 Temporal fields with zero dates do not respect sql_mode=traditional

          • Major - Major loss of function.
          • Open

          Bug - A problem which impairs or prevents the functions of the product. MDEV-11137 TIMESTAMP has 2-level logic for default values

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Open

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              bar Alexander Barkov
              bar Alexander Barkov
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                Updated:

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