# Create a table with a 1-byte ENUM, 1-byte SET, and TINYINT UNSIGNED.
CREATE TABLE t1
(
t1_enum       ENUM("a", "b", "c"),
t1_set        SET("a", "b", "c"),
t1_tinyint_s  TINYINT,
t1_tinyint_u  TINYINT UNSIGNED
) ENGINE=InnoDB;
# All t1 fields' mtypes should be 6 (DATA_INT).
SELECT
name,
mtype,
(prtype & 512) = 512 AS is_unsigned
FROM information_schema.INNODB_SYS_COLUMNS
WHERE name LIKE "t1\_%"
ORDER BY name;
name	mtype	is_unsigned
t1_enum	6	1
t1_set	6	1
t1_tinyint_s	6	0
t1_tinyint_u	6	1
# Cleanup
DROP TABLE t1;