mysql 里可以创建: KEY idx_guid_yanzhengma (GUID(32),YANZHENGMA(32))
但是tidb里执行会报错:
alter table xxx add KEY KEY `idx_guid_yanzhengma` (`GUID`(32),`YANZHENGMA`(32))
> 1064 - You have an error in your SQL syntax; check the manual that corresponds to your TiDB version for the right syntax to use line 1 column 40 near "KEY `idx_guid_yanzhengma` (`GUID`(32),`YANZHENGMA`(32))"