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#
# test of IN (NULL)
#
drop table if exists t1;
CREATE TABLE t1 (field char(1));
INSERT INTO t1 VALUES ('A'),(NULL);
SELECT * from t1 WHERE field IN (NULL);
SELECT * from t1 WHERE field NOT IN (NULL);
SELECT * from t1 where field = field;
SELECT * from t1 where field <=> field;
DELETE FROM t1 WHERE field NOT IN (NULL);
SELECT * FROM t1;
drop table t1;
create table t1 (id int(10) primary key);
insert into t1 values (1),(2),(3),(4),(5),(6),(7),(8),(9);
select * from t1 where id in (2,5,9);
drop table t1;
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