"CREATE TABLE t1 SELECT int_sp_argument" produces a too large column

DROP TABLE IF EXISTS t1;

DROP PROCEDURE IF EXISTS p1;

CREATE PROCEDURE p1(a INT) CREATE TABLE t1 SELECT a;

CALL p1(1);

DESC t1;

+-------+------------+------+-----+---------+-------+

| Field | Type       | Null | Key | Default | Extra |

+-------+------------+------+-----+---------+-------+

| a     | bigint(11) | YES  |     | NULL    |       |

+-------+------------+------+-----+---------+-------+