SHOW ENGINES
SHOW ENGINES 语句用于列出所有支持的存储引擎，该语法仅提供 MySQL 兼容性。
语法图
ShowEnginesStmt:
SHOW ENGINES;
示例
SHOW ENGINES;
+--------+---------+------------------------------------------------------------+--------------+------+------------+
| Engine | Support | Comment | Transactions | XA | Savepoints |
+--------+---------+------------------------------------------------------------+--------------+------+------------+
| InnoDB | DEFAULT | Supports transactions, row-level locking, and foreign keys | YES | YES | YES |
+--------+---------+------------------------------------------------------------+--------------+------+------------+
1 row in set (0.00 sec)
MySQL 兼容性
SHOW ENGINES语句始终只返回 InnoDB 作为其支持的引擎。但 TiDB 内部通常使用 TiKV 作为存储引擎。