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  1. MariaDB Server
  2. MDEV-5441

Converting any_engine -> CONNECT deletes data

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    Details

    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Critical
    • Resolution: Fixed
    • Affects Version/s: 10.0.6
    • Fix Version/s: 10.0.9
    • Component/s: None
    • Labels:
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      Description

      IMO, this should work or be prohibited to prevent disasters. I tried InnoDB, MyISAM, CSV and the result is the same. Note that the default table type should be used, so the alter table should work in theory.

      MariaDB [test]> CREATE TABLE t (c INT) ENGINE = InnoDB;
      Query OK, 0 rows affected (0.51 sec)
       
      MariaDB [test]> INSERT INTO t VALUES (1), (2), (3);
      Query OK, 3 rows affected (0.07 sec)
      Records: 3  Duplicates: 0  Warnings: 0
       
      MariaDB [test]> ALTER TABLE t ENGINE = CONNECT;
      Query OK, 0 rows affected, 2 warnings (0.46 sec)
      Records: 0  Duplicates: 0  Warnings: 2
       
      Warning (Code 1105): No table_type. Will be set to DOS
      Warning (Code 1105): Wrong command in create, please contact CONNECT team
      MariaDB [test]> SELECT * FROM t;
      Empty set, 1 warning (0.00 sec)
       
      Warning (Code 1105): Open(rb) error 2 on /usr/local/mariadb-10.0.5-linux-x86_64/data/./test/t.dos: No such file or directory

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            Assignee:
            bertrandop Olivier Bertrand
            Reporter:
            f_razzoli Federico Razzoli
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              Dates

              Created:
              Updated:
              Resolved:

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