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# Initialize
--disable_warnings
drop table if exists t1,t2,t3;
--enable_warnings
select * from (select 2 from DUAL) b;
-- error 1054
SELECT 1 as a FROM (SELECT 1 UNION SELECT a) b;
-- error 1054
SELECT 1 as a FROM (SELECT a UNION SELECT 1) b;
CREATE TABLE t1 (a int not null, b char (10) not null);
insert into t1 values(1,'a'),(2,'b'),(3,'c'),(3,'c');
CREATE TABLE t2 (a int not null, b char (10) not null);
insert into t2 values (3,'c'),(4,'d'),(5,'f'),(6,'e');
select t1.a,t3.y from t1,(select a as y from t2 where b='c') as t3 where t1.a = t3.y;
select t1.a,t3.a from t1,(select * from t2 where b='c') as t3 where t1.a = t3.a;
CREATE TABLE t3 (a int not null, b char (10) not null);
insert into t3 values (3,'f'),(4,'y'),(5,'z'),(6,'c');
select t1.a,t4.y from t1,(select t2.a as y from t2,(select t3.b from t3 where t3.a>3) as t5 where t2.b=t5.b) as t4 where t1.a = t4.y;
--error 1054
SELECT a FROM (SELECT 1 FROM (SELECT 1) a HAVING a=1) b;
--error 1052
SELECT a,b as a FROM (SELECT '1' as a,'2' as b) b HAVING a=1;
SELECT a,2 as a FROM (SELECT '1' as a) b HAVING a=2;
SELECT a,2 as a FROM (SELECT '1' as a) b HAVING a=1;
--error 1054
SELECT 1 FROM (SELECT 1) a WHERE a=2;
--error 1054
SELECT (SELECT 1) as a FROM (SELECT 1 FROM t1 HAVING a=1) as a;
select * from t1 as x1, (select * from t1) as x2;
explain select * from t1 as x1, (select * from t1) as x2;
drop table if exists t2,t3;
select * from (select 1) as a;
select a from (select 1 as a) as b;
select 1 from (select 1) as a;
select * from (select * from t1 union select * from t1) a;
select * from (select * from t1 union all select * from t1) a;
explain select * from (select * from t1 union select * from t1) a;
explain select * from (select * from t1 union all select * from t1) a;
CREATE TABLE t2 (a int not null);
insert into t2 values(1);
select * from (select * from t1 where t1.a=(select a from t2 where t2.a=t1.a)) a;
select * from (select * from t1 where t1.a=(select t2.a from t2 where t2.a=t1.a) union select t1.a, t1.b from t1) a;
explain select * from (select * from t1,t2 where t1.a=t2.a) t1;
drop table t1, t2;
create table t1(a int not null, t char(8), index(a));
disable_query_log;
let $1 = 10000;
while ($1)
{
eval insert into t1 values ($1,'$1');
dec $1;
}
enable_query_log;
SELECT * FROM (SELECT * FROM t1) as b ORDER BY a ASC LIMIT 0,20;
explain select count(*) from t1 as tt1, (select * from t1) as tt2;
drop table t1;
SELECT * FROM (SELECT (SELECT * FROM (SELECT 1 as a) as a )) as b;
select * from (select 1 as a) b left join (select 2 as a) c using(a);
--error 1054
SELECT * FROM (SELECT 1 UNION SELECT a) b;
--error 1054
SELECT 1 as a FROM (SELECT a UNION SELECT 1) b;
--error 1054
SELECT 1 as a FROM (SELECT 1 UNION SELECT a) b;
--error 1054
select 1 from (select 2) a order by 0;
#
# Test of explain (bug #251)
#
create table t1 (id int);
insert into t1 values (1),(2),(3);
describe select * from (select * from t1 group by id) bar;
drop table t1;
#
# test->used_keys test for derived tables
#
create table t1 (mat_id MEDIUMINT UNSIGNED NOT NULL AUTO_INCREMENT PRIMARY KEY, matintnum CHAR(6) NOT NULL, test MEDIUMINT UNSIGNED NULL);
create table t2 (mat_id MEDIUMINT UNSIGNED NOT NULL, pla_id MEDIUMINT UNSIGNED NOT NULL);
insert into t1 values (NULL, 'a', 1), (NULL, 'b', 2), (NULL, 'c', 3), (NULL, 'd', 4), (NULL, 'e', 5), (NULL, 'f', 6), (NULL, 'g', 7), (NULL, 'h', 8), (NULL, 'i', 9);
insert into t2 values (1, 100), (1, 101), (1, 102), (2, 100), (2, 103), (2, 104), (3, 101), (3, 102), (3, 105);
SELECT d.pla_id, m2.mat_id FROM t1 m2 INNER JOIN (SELECT mp.pla_id, MIN(m1.matintnum) AS matintnum FROM t2 mp INNER JOIN t1 m1 ON mp.mat_id=m1.mat_id GROUP BY mp.pla_id) d ON d.matintnum=m2.matintnum;
SELECT d.pla_id, m2.test FROM t1 m2 INNER JOIN (SELECT mp.pla_id, MIN(m1.matintnum) AS matintnum FROM t2 mp INNER JOIN t1 m1 ON mp.mat_id=m1.mat_id GROUP BY mp.pla_id) d ON d.matintnum=m2.matintnum;
explain SELECT d.pla_id, m2.mat_id FROM t1 m2 INNER JOIN (SELECT mp.pla_id, MIN(m1.matintnum) AS matintnum FROM t2 mp INNER JOIN t1 m1 ON mp.mat_id=m1.mat_id GROUP BY mp.pla_id) d ON d.matintnum=m2.matintnum;
explain SELECT d.pla_id, m2.test FROM t1 m2 INNER JOIN (SELECT mp.pla_id, MIN(m1.matintnum) AS matintnum FROM t2 mp INNER JOIN t1 m1 ON mp.mat_id=m1.mat_id GROUP BY mp.pla_id) d ON d.matintnum=m2.matintnum;
drop table t1,t2
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