SHOW ENGINES

此语句用于列出所有支持的存储引擎。其语法仅为与 MySQL 兼容而包含。

语法简介

ShowEnginesStmt ::=
    "SHOW" "ENGINES" ShowLikeOrWhere?

ShowLikeOrWhere ::=
    "LIKE" SimpleExpr
|   "WHERE" Expression

示例

mysql> 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

• 这个语句将始终只返回 InnoDB 作为支持的引擎。在内部，TiDB 通常会使用 TiKV 作为存储引擎。