123 lines
3.3 KiB
SQL
123 lines
3.3 KiB
SQL
SET sql_mode = 'NO_ENGINE_SUBSTITUTION';
|
|
|
|
#
|
|
# The last select returned wrong results in 3.23.52
|
|
#
|
|
|
|
create table t1 (id int);
|
|
insert into t1 values (null), (0);
|
|
create table t2 (id int);
|
|
insert into t2 values (null);
|
|
select * from t1, t2 where t1.id = t2.id;
|
|
alter table t1 add key id (id);
|
|
select * from t1, t2 where t1.id = t2.id;
|
|
drop table t1,t2;
|
|
|
|
#
|
|
# Check bug when doing <=> NULL on an indexed null field
|
|
#
|
|
|
|
create table t1 (
|
|
id integer,
|
|
id2 integer not null,
|
|
index (id),
|
|
index (id2)
|
|
);
|
|
insert into t1 values(null,null),(1,1);
|
|
select * from t1;
|
|
select * from t1 where id <=> null;
|
|
select * from t1 where id <=> null or id > 0;
|
|
select * from t1 where id is null or id > 0;
|
|
select * from t1 where id2 <=> null or id2 > 0;
|
|
select * from t1 where id2 is null or id2 > 0;
|
|
delete from t1 where id <=> NULL;
|
|
select * from t1;
|
|
drop table t1;
|
|
|
|
#
|
|
# Test for bug #12144: optimizations for key access with null keys
|
|
# used for outer joins
|
|
#
|
|
|
|
CREATE TABLE t1 (a int);
|
|
CREATE TABLE t2 (a int, b int, INDEX idx(a));
|
|
CREATE TABLE t3 (b int, INDEX idx(b));
|
|
CREATE TABLE t4 (b int, INDEX idx(b));
|
|
INSERT INTO t1 VALUES (1), (2), (3), (4);
|
|
INSERT INTO t2 VALUES (1, 1), (3, 1);
|
|
INSERT INTO t3 VALUES
|
|
(NULL), (NULL), (NULL), (NULL), (NULL),
|
|
(NULL), (NULL), (NULL), (NULL), (NULL);
|
|
INSERT INTO t4 SELECT * FROM t3;
|
|
INSERT INTO t3 SELECT * FROM t4;
|
|
INSERT INTO t4 SELECT * FROM t3;
|
|
INSERT INTO t3 SELECT * FROM t4;
|
|
INSERT INTO t4 SELECT * FROM t3;
|
|
INSERT INTO t3 SELECT * FROM t4;
|
|
INSERT INTO t4 SELECT * FROM t3;
|
|
INSERT INTO t3 SELECT * FROM t4;
|
|
INSERT INTO t4 SELECT * FROM t3;
|
|
INSERT INTO t3 SELECT * FROM t4;
|
|
INSERT INTO t4 SELECT * FROM t3;
|
|
INSERT INTO t3 SELECT * FROM t4;
|
|
INSERT INTO t4 SELECT * FROM t3;
|
|
INSERT INTO t3 SELECT * FROM t4;
|
|
INSERT INTO t4 SELECT * FROM t3;
|
|
INSERT INTO t3 SELECT * FROM t4;
|
|
INSERT INTO t3 VALUES (2), (3);
|
|
|
|
ANALYZE table t1, t2, t3;
|
|
|
|
SELECT COUNT(*) FROM t3;
|
|
|
|
--replace_column 10 #
|
|
EXPLAIN SELECT SQL_CALC_FOUND_ROWS * FROM t1 LEFT JOIN t2 ON t1.a=t2.a
|
|
LEFT JOIN t3 ON t2.b=t3.b;
|
|
FLUSH STATUS ;
|
|
--replace_column 10 #
|
|
SELECT SQL_CALC_FOUND_ROWS * FROM t1 LEFT JOIN t2 ON t1.a=t2.a
|
|
LEFT JOIN t3 ON t2.b=t3.b;
|
|
SELECT FOUND_ROWS();
|
|
SHOW STATUS LIKE "handler_read%";
|
|
|
|
DROP TABLE t1,t2,t3,t4;
|
|
# End of 4.1 tests
|
|
|
|
#
|
|
# BUG#34945 "ref_or_null queries that are null_rejecting and have a null value crash mysql"
|
|
#
|
|
CREATE TABLE t1 (
|
|
a int(11) default NULL,
|
|
b int(11) default NULL,
|
|
KEY a (a,b)
|
|
);
|
|
INSERT INTO t1 VALUES (0,10),(0,11),(0,12);
|
|
|
|
CREATE TABLE t2 (
|
|
a int(11) default NULL,
|
|
b int(11) default NULL,
|
|
KEY a (a)
|
|
);
|
|
INSERT INTO t2 VALUES (3,NULL),(3,11),(3,12);
|
|
|
|
SELECT * FROM t2 inner join t1 WHERE ( t1.a = 0 OR t1.a IS NULL) AND t2.a = 3 AND t2.b = t1.b;
|
|
|
|
drop table t1, t2;
|
|
-- echo End of 5.0 tests
|
|
|
|
--echo #
|
|
--echo # Bug#54608 Query using IN + OR + IS TRUE and IS NULL returns
|
|
--echo # NULL when should be empty
|
|
--echo #
|
|
|
|
CREATE TABLE t1 (a INT, KEY (a));
|
|
INSERT INTO t1 VALUES (1), (2), (NULL);
|
|
explain SELECT a FROM t1 WHERE a IN (42) OR (a IS TRUE AND a IS NULL);
|
|
SELECT a FROM t1 WHERE a IN (42) OR (a IS TRUE AND a IS NULL);
|
|
--replace_column 10 #
|
|
explain SELECT a FROM t1 WHERE a IN (42) OR (a=NULL);
|
|
SELECT a FROM t1 WHERE a IN (42) OR (a=NULL);
|
|
drop table t1;
|
|
SET sql_mode = default;
|
|
|