feature: Dose not support the ALTER syntax, ALTER table t1 rename t2, add c char(10);

[davidshiz]

Describe the solution you'd like

Suggest to support the ALTER sytax :
ALTER table t1 rename t2, add c char(10);

Additional context

The current situation is as follows：

mysql> create table t1 (i int primary key);
Query OK, 0 rows affected (0.00 sec)

mysql> alter table t1 rename t2, add c char(10);
ERROR 2233 (HY000): Be disgraceful to storage engine, operating is forbidden!

[DandreChen]

ACK