生成MySQL数据库表报错SQL：
alter table position add constraint FK_Reference_1 foreign key (partner_id)
references partner (partner_id) on delete restrict on update restrict;
报错信息：
19:51:42 alter table position add constraint FK_Reference_2 foreign key (partner_id) references partner (partner_id) on delete restrict on update restrict Error Code: 1022. Can't write; duplicate key in table '#sql-e88_23' 0.047 sec
解决办法：修改外键名称，如下所示：
alter table position add constraint FK_Reference_8 foreign key (partner_id)
references partner (partner_id) on delete restrict on update restrict;