RENAME INDEX

    AlterTableStmt:

    KeyOrIndex:

    1. Query OK, 0 rows affected (0.11 sec)
    1. *************************** 1. row ***************************
    2.        Table: t1
    3. Create Table: CREATE TABLE `t1` (
    4.   `c1` int(11) NOT NULL,
    6.   KEY `col1` (`c1`)
    7. ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin
    8. 1 row in set (0.00 sec)
    1. Query OK, 0 rows affected (0.09 sec)
    1. *************************** 1. row ***************************
    2.        Table: t1
    3.   `id` int(11) NOT NULL AUTO_INCREMENT,
    4.   `c1` int(11) NOT NULL,
    5.   PRIMARY KEY (`id`),
    6.   KEY `c1` (`c1`)
    7. ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin
    8. 1 row in set (0.00 sec)

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