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  1. MariaDB Server
  2. MDEV-28140

Unexpected error when UPDATE a NULL

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      /* init */ CREATE TABLE t(c1 BLOB NOT NULL, c2 TEXT);
      		 
      /* init */ INSERT IGNORE INTO t VALUES (NULL, NULL), (NULL, 'abc');
      		 
       
      		 
      mariadb> UPDATE t SET c2 = 'test' WHERE c1;
      		 
      ERROR 1292 (22007): Truncated incorrect DOUBLE value: ''
      		 
       
      		 
      mariadb> SELECT * FROM t WHERE c1;
      		 
      Empty set, 2 warnings (0.00 sec)
      		 
       
      		 
      mariadb> DELETE FROM t WHERE c1;
      		 
      Query OK, 0 rows affected, 2 warnings (0.00 sec)

      Only UPDATE statement reports an error, while SELECT and DELETE do not report the error.

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          is blocked by

          Task - A task that needs to be done. MDEV-19362 New STRICT flags for sql_mode

          • Major - Major loss of function.
          • Open
          relates to

          Bug - A problem which impairs or prevents the functions of the product. MDEV-27480 Functions don't validate arguments properly and cast/truncate values without warnings or errors

          • Major - Major loss of function.
          • Stalled

          Bug - A problem which impairs or prevents the functions of the product. MDEV-28069 A misleading warning message from the DELETE statement

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

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              sanja Oleksandr Byelkin
              John Jove John Jove
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                Updated:

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