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  1. MariaDB Server
  2. MDEV-14702

Not helpful error message upon ER_UNSUPPORTED_ACTION_ON_GENERATED_COLUMN

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    Details

    • Type: Bug
    • Status: Open (View Workflow)
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: 5.5, 10.1, 10.2, 10.3, 10.4, 10.0
    • Fix Version/s: 10.4
    • Component/s: Virtual Columns
    • Labels:
      None

      Description

      MariaDB [test]> CREATE TABLE t1 (i INT, f INT AS (i) VIRTUAL);
      Query OK, 0 rows affected (0.44 sec)
       
      MariaDB [test]> ALTER TABLE t1 MODIFY COLUMN f INT;
      ERROR 1907 (HY000): This is not yet supported for generated columns
      

      "This" is really vague.

      MySQL is somewhat better at it:

      3106: 'Changing the STORED status' is not supported for generated columns
      

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              Assignee:
              serg Sergei Golubchik
              Reporter:
              elenst Elena Stepanova
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                Dates

                Created:
                Updated: