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MGR 需要使用主键

发布时间:2020-03-02 18:15:29 来源:网络 阅读:426 作者:roidba 栏目:MySQL数据库

验证MGR架构表需要使用主键,不然插入数据会报错。

mysql> show tables; +--------------+ | Tables_in_dd | +--------------+ | a | +--------------+ 1 row in set (0.00 sec) mysql> desc a; +-------+---------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra | +-------+---------+------+-----+---------+-------+ | id | int(11) | YES | | NULL | | +-------+---------+------+-----+---------+-------+ 1 row in set (0.00 sec) mysql> insert into a values(1); ERROR 3098 (HY000): The table does not comply with the requirements by an external plugin. mysql> alter table a add primary key (id); Query OK, 0 rows affected (0.02 sec) Records: 0 Duplicates: 0 Warnings: 0 mysql> desc a; +-------+---------+------+-----+---------+-------+ | Field | Type | Null | Key | Default | Extra | +-------+---------+------+-----+---------+-------+ | id | int(11) | NO | PRI | NULL | | +-------+---------+------+-----+---------+-------+ 1 row in set (0.01 sec) mysql> insert into a values(1); Query OK, 1 row affected (0.00 sec) mysql> insert into a values(1); Query OK, 1 row affected (0.00 sec) mysql> select * from a; +----+ | id | +----+ | 1 | +----+ 1 row in set (0.00 sec) 
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