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  1. MariaDB Server
  2. MDEV-6085

ALTER TABLE looses the connection string

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    Details

    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 10.0.10
    • Fix Version/s: 10.0.11
    • Component/s: None
    • Labels:

      Description

      After creating a table with a connection string, if ALTER TABLE is used, the connection string is lost. For instance:

      CREATE TABLE t1 ENGINE=CONNECT TABLE_TYPE=ODBC tabname='lite' CONNECTION='Driver=SQLite3 ODBC Driver;Database=test.sqlite3;NoWCHAR=yes' CHARSET=utf8 DATA_CHARSET=utf8;
       
      SHOW CREATE TABLE t1;
      CREATE TABLE `t1` (
        `ID` int(9) DEFAULT NULL,
        `nom` varchar(12) NOT NULL,
        `nais` datetime DEFAULT NULL,
        `rem` varchar(32) DEFAULT NULL
      ) ENGINE=CONNECT DEFAULT CHARSET=utf8 CONNECTION='Driver=SQLite3 ODBC Driver;Database=test.sqlite3;NoWCHAR=yes' `TABLE_TYPE`='ODBC' `TABNAME`='lite' `DATA_CHARSET`='utf8'

      Now if I do:

      ALTER TABLE t1 MODIFY COLUMN nom VARCHAR(13) NOT NULL;
      SHOW CREATE TABLE t1;
      CREATE TABLE `t1` (
        `ID` int(9) DEFAULT NULL,
        `nom` varchar(13) NOT NULL,
        `nais` datetime DEFAULT NULL,
        `rem` varchar(32) DEFAULT NULL
      ) ENGINE=CONNECT DEFAULT CHARSET=utf8 `TABLE_TYPE`='ODBC' `TABNAME`='lite' `DATA_CHARSET`='utf8';

      This has not been reported before CONNECT was implemented because the only other engine using connection string was FEDERATED(X) that does not support ALTER TABLE.

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            Assignee:
            serg Sergei Golubchik
            Reporter:
            bertrandop Olivier Bertrand
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              Updated:
              Resolved: