我是觉得这个应该没问题，不支持fulltext，但是支持这个语法，
(root@127.1) [test] 08:56:57> create fulltext index idx on t1 (name);
ERROR 8200 (HY000): FULLTEXT and SPATIAL index is not supported
(root@127.1) [test] 08:57:27> create fulltext2 index idx on t1 (name);
ERROR 1064 (42000): 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 16 near "fulltext2 index idx on t1 (name)"