1
CREATE TABLE t1 (A BOOLEAN, PRIMARY KEY (A));
2
insert into t1 VALUES ("no");
3
insert into t1 VALUES ("true");
5
--error ER_DUP_ENTRY_WITH_KEY_NAME,ER_DUP_ENTRY
6
insert into t1 VALUES ("true");
8
SELECT A from t1 ORDER BY a ASC;
9
SELECT A from t1 ORDER BY a DESC;