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  1. MariaDB Server
  2. MDEV-9419

CREATE TABLE succeeds w/ read_only mode enabled.

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Details

    • Bug
    • Status: Closed (View Workflow)
    • Major
    • Resolution: Fixed
    • 5.5(EOL), 10.0(EOL), 10.1(EOL)
    • 10.1.26, 5.5.57, 10.0.32, 10.2.8
    • Red Hat Enterprise Linux Server release 6.5 (Santiago)
      Linux 2.6.32-431.46.2.el6.x86_64 #1 SMP Mon Dec 15 14:20:02 EST 2014 x86_64 x86_64 x86_64 GNU/Linux

    Description

      When the server is running in read_only mode, and when connected as a user that does not have the SUPER privilege, it is possible to create a real table if a temporary table with the same name already exists.

      MariaDB [test]> CREATE TABLE test1 (id INT);
      ERROR 1290 (HY000): The MariaDB server is running with the --read-only option so it cannot execute this statement
       
      MariaDB [test]> CREATE TEMPORARY TABLE test1 (id INT);
      Query OK, 0 rows affected (0.00 sec)
       
      MariaDB [test]> CREATE TABLE test1 (id INT);
      Query OK, 0 rows affected (0.01 sec)
       
      MariaDB [test]> DROP TEMPORARY TABLE test1;
      Query OK, 0 rows affected (0.00 sec)
       
      MariaDB [test]> DESCRIBE test1;
      +-------+---------+------+-----+---------+-------+
      | Field | Type    | Null | Key | Default | Extra |
      +-------+---------+------+-----+---------+-------+
      | id    | int(11) | YES  |     | NULL    |       |
      +-------+---------+------+-----+---------+-------+
      1 row in set (0.00 sec)

      As you can see, the real table persists.

      Incidentally, this happens both when binary logging is enabled and when it is not.

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            serg Sergei Golubchik
            meddy Michael Eddy
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            Dates

              Created:
              Updated:
              Resolved:

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