How to export CSV file with header in mysql

mysql> select game,domain,type

-> into outfile 'd:\\game.csv' 
-> fields terminated by ','

-> lines terminated by '\n'

-> from game_lists limit 10;

mysql> create table test(id int(10) not null auto_increment primary key, name varchar(10) not null, age tinyint(2) not null)engine=innodb default charset=utf8;

mysql> insert into test(`name`,`age`) values ​​('Lee',20),('Li',30),('Wang',22),('Feng',23);

mysql> select * from (select 'name','age' union select name,age from test) b;
+------+-----+
| name | age |
+------+-----+
| name | age |
| Lee | 20 |
| Li | 30 |
| Wang | 22 |
| Feng | 23 |
+------+-----+
5 rows in set (0.00 sec)

mysql> select * into outfile 'd:\\tmp\\columns.csv' fields terminated by ',' lines terminated by '\n' from (select 'name','age' union select name,age from test) b;
Query OK, 5 rows affected (0.00 sec)