眼见为实，看看MySQL中的隐藏列！
复制CREATETABLE `table1` ( `id` bigint(20) NOTNULLPRIMARYKEY ,眼见为实 `name` varchar(32) DEFAULTNULL ) ENGINE=InnoDB; 1.2.3.4.
复制CREATETABLE `table1` ( `id` bigint(20) NOTNULLPRIMARYKEY ,眼见为实 `name` varchar(32) DEFAULTNULL ) ENGINE=InnoDB; 1.2.3.4.