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-rw-r--r--mysql-test/main/subselect.test215
1 files changed, 115 insertions, 100 deletions
diff --git a/mysql-test/main/subselect.test b/mysql-test/main/subselect.test
index 7620a51c296..ae072787028 100644
--- a/mysql-test/main/subselect.test
+++ b/mysql-test/main/subselect.test
@@ -74,13 +74,13 @@ SELECT ROW(1,2,3) > (SELECT 1,2,1);
#enable after fix MDEV-28585
--disable_view_protocol
SELECT ROW(1,2,3) = (SELECT 1,2,NULL);
-SELECT (SELECT 1.5,2,'a') = ROW(1.5,2,'a');
-SELECT (SELECT 1.5,2,'a') = ROW(1.5,2,'b');
-SELECT (SELECT 1.5,2,'a') = ROW('1.5b',2,'b');
-SELECT (SELECT 'b',2,'a') = ROW(1.5,2,'a');
-SELECT (SELECT 1.5,2,'a') = ROW(1.5,'2','a');
-SELECT (SELECT 1.5,'c','a') = ROW(1.5,2,'a');
--enable_view_protocol
+SELECT (SELECT 1.5,2,'a') = ROW(1.5,2,'a') AS m;
+SELECT (SELECT 1.5,2,'a') = ROW(1.5,2,'b') AS m;
+SELECT (SELECT 1.5,2,'a') = ROW('1.5b',2,'b') AS m;
+SELECT (SELECT 'b',2,'a') = ROW(1.5,2,'a') AS m;
+SELECT (SELECT 1.5,2,'a') = ROW(1.5,'2','a') AS m;
+SELECT (SELECT 1.5,'c','a') = ROW(1.5,2,'a') AS m;
-- error ER_OPERAND_COLUMNS
SELECT (SELECT * FROM (SELECT 'test' a,'test' b) a);
@@ -118,11 +118,15 @@ set optimizer_switch=@tmp_optimizer_switch;
select * from t1 where t1.a=(select t2.a from t2 where t2.b=(select max(a) from t3) order by 1 desc limit 1);
select * from t1 where t1.a=(select t2.a from t2 where t2.b=(select max(a) from t3 where t3.a > t1.a) order by 1 desc limit 1);
select * from t1 where t1.a=(select t2.a from t2 where t2.b=(select max(a) from t3 where t3.a < t1.a) order by 1 desc limit 1);
-#enable afte fix MDEV-27871
---disable_view_protocol
-select b,(select avg(t2.a+(select min(t3.a) from t3 where t3.a >= t4.a)) from t2) from t4;
-explain extended select b,(select avg(t2.a+(select min(t3.a) from t3 where t3.a >= t4.a)) from t2) from t4;
---enable_view_protocol
+select
+ b,
+ (select avg(t2.a+(select min(t3.a) from t3 where t3.a >= t4.a)) from t2) as m
+from t4;
+explain extended
+select
+ b,
+ (select avg(t2.a+(select min(t3.a) from t3 where t3.a >= t4.a)) from t2) as m
+from t4;
select * from t3 where exists (select * from t2 where t2.b=t3.a);
select * from t3 where not exists (select * from t2 where t2.b=t3.a);
select * from t3 where a in (select b from t2);
@@ -155,16 +159,25 @@ delete from t2 where a=2 and b=10;
select b,max(a) as ma from t4 group by b having b >= (select max(t2.a) from t2 where t2.b=t4.b);
create table t5 (a int);
-#enable afte fix MDEV-27871
---disable_view_protocol
-
-select (select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a), a from t2;
+select
+ (select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a) as m,
+ a
+from t2;
insert into t5 values (5);
-select (select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a), a from t2;
+select
+ (select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a) as m,
+ a
+from t2;
insert into t5 values (2);
-select (select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a), a from t2;
-explain extended select (select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a), a from t2;
---enable_view_protocol
+select
+ (select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a) as m,
+ a
+from t2;
+explain extended
+select
+ (select a from t1 where t1.a=t2.a union select a from t5 where t5.a=t2.a) as m,
+ a
+from t2;
-- error ER_SUBQUERY_NO_1_ROW
select (select a from t1 where t1.a=t2.a union all select a from t5 where t5.a=t2.a), a from t2;
@@ -269,19 +282,19 @@ SELECT * from t2 where topic = any (SELECT topic FROM t2 GROUP BY topic HAVING t
SELECT * from t2 where topic = any (SELECT SUM(topic) FROM t1);
SELECT * from t2 where topic = all (SELECT topic FROM t2 GROUP BY topic);
SELECT * from t2 where topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 4100);
-#enable after fix MDEV-27871
---disable_view_protocol
-SELECT *, topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 4100) from t2;
---enable_view_protocol
+SELECT
+ *,
+ topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 4100) AS m
+FROM t2;
SELECT * from t2 where topic = all (SELECT SUM(topic) FROM t2);
SELECT * from t2 where topic <> any (SELECT SUM(topic) FROM t2);
SELECT * from t2 where topic IN (SELECT topic FROM t2 GROUP BY topic HAVING topic < 41000);
SELECT * from t2 where topic = any (SELECT topic FROM t2 GROUP BY topic HAVING topic < 41000);
SELECT * from t2 where topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 41000);
-#enable after fix MDEV-27871
---disable_view_protocol
-SELECT *, topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 41000) from t2;
---enable_view_protocol
+SELECT
+ *,
+ topic = all (SELECT topic FROM t2 GROUP BY topic HAVING topic < 41000) AS m
+FROM t2;
drop table t1,t2;
#forumconthardwarefr7
@@ -521,11 +534,20 @@ select 10.5 IN (SELECT * from t1);
select 1.5 > ALL (SELECT * from t1);
select 10.5 > ALL (SELECT * from t1);
select 1.5 > ANY (SELECT * from t1);
+update t1 set a=NULL where a=2.5;
+select 1.5 IN (SELECT * from t1);
+select 3.5 IN (SELECT * from t1);
+select 10.5 IN (SELECT * from t1);
+select 1.5 > ALL (SELECT * from t1);
+select 10.5 > ALL (SELECT * from t1);
+select 1.5 > ANY (SELECT * from t1);
select 10.5 > ANY (SELECT * from t1);
+--enable_view_protocol
+explain extended select (select a+1) from t1;
+explain extended select (select a+1) from t1;
explain extended select (select a+1) from t1;
select (select a+1) from t1;
drop table t1;
---enable_view_protocol
#
# Null with keys
@@ -945,10 +967,7 @@ create table t3 (a int, b int);
insert into t1 values (0,100),(1,2), (1,3), (2,2), (2,7), (2,-1), (3,10);
insert into t2 values (0,0), (1,1), (2,1), (3,1), (4,1);
insert into t3 values (3,3), (2,2), (1,1);
-#enable after fix MDEV-27871
---disable_view_protocol
-select a,(select count(distinct t1.b) as sum from t1,t2 where t1.a=t2.a and t2.b > 0 and t1.a <= t3.b group by t1.a order by sum limit 1) from t3;
---enable_view_protocol
+select a,(select count(distinct t1.b) as sum from t1,t2 where t1.a=t2.a and t2.b > 0 and t1.a <= t3.b group by t1.a order by sum limit 1) as m from t3;
drop table t1,t2,t3;
#
@@ -1066,10 +1085,7 @@ CREATE TABLE `t3` (`taskgenid` mediumint(9) NOT NULL auto_increment,`dbid` int(1
INSERT INTO `t3` (`taskgenid`, `dbid`, `taskid`, `mon`, `tues`,`wed`, `thur`, `fri`, `sat`, `sun`, `how_often`, `userid`, `active`) VALUES (1,-1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 0, 1);
CREATE TABLE `t4` (`task_id` smallint(6) NOT NULL default '0',`description` varchar(200) NOT NULL default '') ENGINE=MyISAM CHARSET=latin1;
INSERT INTO `t4` (`task_id`, `description`) VALUES (1, 'Daily Check List'),(2, 'Weekly Status');
-#enable after fix MDEV-27871
---disable_view_protocol
-select dbid, name, (date_format(now() , '%Y-%m-%d') - INTERVAL how_often DAY) >= ifnull((SELECT date_format(max(create_date),'%Y-%m-%d') FROM t1 WHERE dbid = b.db_id AND taskid = a.taskgenid), '1950-01-01') from t3 a, t2 b, t4 WHERE dbid = - 1 AND primary_uid = '1' AND t4.task_id = taskid;
---enable_view_protocol
+select dbid, name, (date_format(now() , '%Y-%m-%d') - INTERVAL how_often DAY) >= ifnull((SELECT date_format(max(create_date),'%Y-%m-%d') as m FROM t1 WHERE dbid = b.db_id AND taskid = a.taskgenid), '1950-01-01') as m from t3 a, t2 b, t4 WHERE dbid = - 1 AND primary_uid = '1' AND t4.task_id = taskid;
SELECT dbid, name FROM t3 a, t2 b, t4 WHERE dbid = - 1 AND primary_uid = '1' AND ((date_format(now() , '%Y-%m-%d') - INTERVAL how_often DAY) >= ifnull((SELECT date_format(max(create_date),'%Y-%m-%d') FROM t1 WHERE dbid = b.db_id AND taskid = a.taskgenid), '1950-01-01')) AND t4.task_id = taskid;
drop table t1,t2,t3,t4;
@@ -2388,9 +2404,6 @@ SELECT a, MAX(b), MIN(b) FROM t1 GROUP BY a;
SELECT * FROM t2;
SELECT * FROM t3;
-#enable after fix MDEV-28570
---disable_view_protocol
-
SELECT a FROM t1 GROUP BY a
HAVING a IN (SELECT c FROM t2 WHERE MAX(b)>20);
SELECT a FROM t1 GROUP BY a
@@ -2455,8 +2468,6 @@ SELECT t1.a, SUM(b) AS sum FROM t1 GROUP BY t1.a
HAVING t1.a IN (SELECT t2.c FROM t2 GROUP BY t2.c
HAVING t2.c+sum > 20);
---enable_view_protocol
-
DROP TABLE t1,t2,t3;
@@ -2687,19 +2698,17 @@ DROP TABLE t1;
# Bug#21540 Subqueries with no from and aggregate functions return
# wrong results
-#enable after fix MDEV-27871, MDEV-28573
---disable_view_protocol
-
CREATE TABLE t1 (a INT, b INT);
CREATE TABLE t2 (a INT);
INSERT INTO t2 values (1);
INSERT INTO t1 VALUES (1,1),(1,2),(2,3),(3,4);
SELECT (SELECT COUNT(DISTINCT t1.b) from t2) FROM t1 GROUP BY t1.a;
-SELECT (SELECT COUNT(DISTINCT t1.b) from t2 union select 1 from t2 where 12 < 3)
+SELECT
+ (SELECT COUNT(DISTINCT t1.b) from t2 union select 1 from t2 where 12 < 3) AS m
FROM t1 GROUP BY t1.a;
SELECT COUNT(DISTINCT t1.b), (SELECT COUNT(DISTINCT t1.b)) FROM t1 GROUP BY t1.a;
SELECT COUNT(DISTINCT t1.b),
- (SELECT COUNT(DISTINCT t1.b) union select 1 from DUAL where 12 < 3)
+ (SELECT COUNT(DISTINCT t1.b) union select 1 from DUAL where 12 < 3) AS m
FROM t1 GROUP BY t1.a;
SELECT (
SELECT (
@@ -2713,11 +2722,10 @@ SELECT (
SELECT COUNT(DISTINCT t1.b)
)
)
- FROM t1 GROUP BY t1.a LIMIT 1)
+ FROM t1 GROUP BY t1.a LIMIT 1) AS m
FROM t1 t2
GROUP BY t2.a;
DROP TABLE t1,t2;
---enable_view_protocol
#
# Bug#21727 Correlated subquery that requires filesort:
@@ -2952,8 +2960,6 @@ DROP TABLE t1,t2;
# Bug#27229 GROUP_CONCAT in subselect with COUNT() as an argument
#
-#enable after fix MDEV-28571
---disable_view_protocol
CREATE TABLE t1 (a int, b int);
CREATE TABLE t2 (m int, n int);
INSERT INTO t1 VALUES (2,2), (2,2), (3,3), (3,3), (3,3), (4,4);
@@ -2968,7 +2974,6 @@ SELECT COUNT(*) c, a,
FROM t1 GROUP BY a;
DROP table t1,t2;
---enable_view_protocol
#
# Bug#27321 Wrong subquery result in a grouping select
@@ -2999,14 +3004,11 @@ SELECT tt.a,
FROM t1 WHERE t1.a=tt.a GROUP BY a LIMIT 1) as test
FROM t1 as tt GROUP BY tt.a;
-#enable after fix MDEV-28571
---disable_view_protocol
SELECT tt.a, MAX(
(SELECT (SELECT t.c FROM t1 AS t WHERE t1.a=t.a AND t.d=MAX(t1.b + tt.a)
LIMIT 1)
FROM t1 WHERE t1.a=tt.a GROUP BY a LIMIT 1)) as test
FROM t1 as tt GROUP BY tt.a;
---enable_view_protocol
DROP TABLE t1;
@@ -3161,8 +3163,6 @@ CREATE TABLE t2 (x INTEGER);
INSERT INTO t1 VALUES (1,11), (2,22), (2,22);
INSERT INTO t2 VALUES (1), (2);
-#enable after fix MDEV-28573
---disable_view_protocol
# wasn't failing, but should
--error ER_SUBQUERY_NO_1_ROW
SELECT a, COUNT(b), (SELECT COUNT(b) FROM t2) FROM t1 GROUP BY a;
@@ -3172,7 +3172,6 @@ SELECT a, COUNT(b), (SELECT COUNT(b) FROM t2) FROM t1 GROUP BY a;
SELECT a, COUNT(b), (SELECT COUNT(b)+0 FROM t2) FROM t1 GROUP BY a;
SELECT (SELECT SUM(t1.a)/AVG(t2.x) FROM t2) FROM t1;
---enable_view_protocol
DROP TABLE t1,t2;
@@ -3187,8 +3186,6 @@ GROUP BY a1.a;
DROP TABLE t1;
#test cases from 29297
-#enable after fix MDEV-28573
---disable_view_protocol
CREATE TABLE t1 (a INT);
CREATE TABLE t2 (a INT);
INSERT INTO t1 VALUES (1),(2);
@@ -3198,7 +3195,6 @@ SELECT (SELECT SUM(t1.a) FROM t2 WHERE a=0) FROM t1;
SELECT (SELECT SUM(t1.a) FROM t2 WHERE a!=0) FROM t1;
SELECT (SELECT SUM(t1.a) FROM t2 WHERE a=1) FROM t1;
DROP TABLE t1,t2;
---enable_view_protocol
#
# Bug#31884 Assertion + crash in subquery in the SELECT clause.
@@ -5400,14 +5396,11 @@ INSERT INTO t2 VALUES (10,7,0), (0,7,0);
CREATE TABLE t3 (a int, b int);
INSERT INTO t3 VALUES (10,7), (0,7);
-#enable after fix MDEV-27871
---disable_view_protocol
SELECT SUM(DISTINCT b),
(SELECT t2.a FROM t1 JOIN t2 ON t2.c != 0
- WHERE t.a != 0 AND t2.a != 0)
+ WHERE t.a != 0 AND t2.a != 0) AS m
FROM (SELECT * FROM t3) AS t
GROUP BY 2;
---enable_view_protocol
SELECT SUM(DISTINCT b),
(SELECT t2.a FROM t1,t2 WHERE t.a != 0 or 1=2 LIMIT 1)
@@ -5565,29 +5558,53 @@ INSERT INTO t3 VALUES (1,1),(2,2);
set @old_optimizer_switch = @@session.optimizer_switch;
set @@optimizer_switch='materialization=on,partial_match_rowid_merge=on,partial_match_table_scan=off,subquery_cache=off,semijoin=off';
-#enable after fix MDEV-27871
---disable_view_protocol
-SELECT (SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1) FROM t2;
-SELECT (SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1) FROM t2;
-SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1) FROM t2;
-SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1);
-SELECT (SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1) FROM t2;
-SELECT (SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1) FROM t2;
-SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1) FROM t2;
-SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1);
+SELECT
+ (SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1) AS m
+FROM t2;
+SELECT
+ (SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1) AS m
+ FROM t2;
+SELECT
+ (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1) AS m
+FROM t2;
+SELECT
+ (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1) AS m;
+SELECT
+ (SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1) AS m
+FROM t2;
+SELECT
+ (SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1) AS m
+FROM t2;
+SELECT
+ (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1) AS m
+FROM t2;
+SELECT
+ (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1) AS m;
set @@session.optimizer_switch=@old_optimizer_switch;
# check different IN with default switches
-SELECT (SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1) FROM t2;
-SELECT (SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1) FROM t2;
-SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1) FROM t2;
-SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1);
-SELECT (SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1) FROM t2;
-SELECT (SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1) FROM t2;
-SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1) FROM t2;
-SELECT (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1);
---enable_view_protocol
+SELECT
+ (SELECT f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a FROM t1) AS m
+FROM t2;
+SELECT
+ (SELECT f3a,f3a FROM t3 where f3a > 3) NOT IN (SELECT f1a,f1a FROM t1) AS m
+FROM t2;
+SELECT
+ (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1) AS m
+FROM t2;
+SELECT
+ (SELECT f3a, f3b FROM t3 where f3a > 3) NOT IN (SELECT f1a, f1b FROM t1) AS m;
+SELECT
+ (SELECT f3a FROM t3 where f3a > 3) IN (SELECT f1a FROM t1) FROM t2 AS m;
+SELECT
+ (SELECT f3a,f3a FROM t3 where f3a > 3) IN (SELECT f1a,f1a FROM t1) AS m
+FROM t2;
+SELECT
+ (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1) AS m
+FROM t2;
+SELECT
+ (SELECT f3a, f3b FROM t3 where f3a > 3) IN (SELECT f1a, f1b FROM t1) AS m;
# other row operation with NULL single row subquery also should work
select (null, null) = (null, null);
@@ -5627,10 +5644,9 @@ INSERT INTO t3 VALUES (4),(5);
SET optimizer_switch='subquery_cache=off';
-#enable after fix MDEV-27871
---disable_view_protocol
-SELECT ( SELECT b FROM t2 WHERE b = a OR EXISTS ( SELECT c FROM t3 WHERE c = b ) ) FROM t1;
---enable_view_protocol
+SELECT
+ ( SELECT b FROM t2 WHERE b = a OR EXISTS ( SELECT c FROM t3 WHERE c = b ) ) AS m
+FROM t1;
# This query just for example, it should return the same as above (1 and NULL)
SELECT ( SELECT b FROM t2 WHERE b = a OR b * 0) FROM t1;
@@ -5819,15 +5835,17 @@ INSERT INTO t3 VALUES (8),(3);
set @@expensive_subquery_limit= 0;
-#enable after fix MDEV-27871
---disable_view_protocol
EXPLAIN
-SELECT (SELECT MIN(b) FROM t1, t2 WHERE b = a AND (b = alias1.b OR EXISTS (SELECT * FROM t3)))
+SELECT
+ (SELECT MIN(b) FROM t1, t2
+ WHERE b = a AND (b = alias1.b OR EXISTS (SELECT * FROM t3))) AS m
FROM t2 alias1, t1 alias2, t1 alias3;
flush status;
-SELECT (SELECT MIN(b) FROM t1, t2 WHERE b = a AND (b = alias1.b OR EXISTS (SELECT * FROM t3)))
+SELECT
+ (SELECT MIN(b) FROM t1, t2
+ WHERE b = a AND (b = alias1.b OR EXISTS (SELECT * FROM t3))) AS m
FROM t2 alias1, t1 alias2, t1 alias3;
show status like "subquery_cache%";
@@ -5836,17 +5854,20 @@ show status like '%Handler_read%';
set @@expensive_subquery_limit= default;
EXPLAIN
-SELECT (SELECT MIN(b) FROM t1, t2 WHERE b = a AND (b = alias1.b OR EXISTS (SELECT * FROM t3)))
+SELECT
+ (SELECT MIN(b) FROM t1, t2
+ WHERE b = a AND (b = alias1.b OR EXISTS (SELECT * FROM t3))) AS m
FROM t2 alias1, t1 alias2, t1 alias3;
flush status;
-SELECT (SELECT MIN(b) FROM t1, t2 WHERE b = a AND (b = alias1.b OR EXISTS (SELECT * FROM t3)))
+SELECT
+ (SELECT MIN(b) FROM t1, t2
+ WHERE b = a AND (b = alias1.b OR EXISTS (SELECT * FROM t3))) AS m
FROM t2 alias1, t1 alias2, t1 alias3;
show status like "subquery_cache%";
show status like '%Handler_read%';
---enable_view_protocol
drop table t1, t2, t3;
@@ -6100,22 +6121,16 @@ INSERT INTO t1 VALUES (1),(2);
CREATE TABLE t2 (f2 int);
INSERT INTO t2 VALUES (3);
-#enable after fix MDEV-29224
---disable_view_protocol
SELECT ( SELECT MAX(f1) FROM t2 ) FROM t1;
SELECT ( SELECT MAX(f1) FROM t2 ) FROM v1;
---enable_view_protocol
INSERT INTO t2 VALUES (4);
-#enable after fix MDEV-28573
---disable_view_protocol
--error ER_SUBQUERY_NO_1_ROW
SELECT ( SELECT MAX(f1) FROM t2 ) FROM v1;
--error ER_SUBQUERY_NO_1_ROW
SELECT ( SELECT MAX(f1) FROM t2 ) FROM t1;
---enable_view_protocol
drop view v1;
drop table t1,t2;
View Lorry Controller Status