MDEV-11953: support of brackets in UNION/EXCEPT/INTERSECT operations

1 files changed, 32 insertions, 34 deletions

diff --git a/mysql-test/main/subselect_no_scache.result b/mysql-test/main/subselect_no_scache.result
index a594f5f85b9..ba5121cb815 100644
--- a/mysql-test/main/subselect_no_scache.result
+++ b/mysql-test/main/subselect_no_scache.result
@@ -185,7 +185,8 @@ select * from t2 where t2.b=(select a from t3 order by 1 desc limit 1);
 a	b
 1	7
 2	7
-(select * from t2 where t2.b=(select a from t3 order by 1 desc limit 1)) union (select * from t4 order by a limit 2) limit 3;
+(select * from t2 where t2.b=(select a from t3 order by 1 desc limit 1))
+union (select * from t4 order by a limit 2) order by a limit 3;
 a	b
 1	7
 2	7
@@ -3732,7 +3733,7 @@ SELECT sql_no_cache * FROM t1 WHERE NOT EXISTS
 i
 SELECT * FROM t1
 WHERE NOT EXISTS (((SELECT i FROM t1) UNION (SELECT i FROM t1)));
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION (SELECT i FROM t1)))' at line 2
+i
 explain select ((select t11.i from t1 t11) union (select t12.i from t1 t12))
 from t1;
 ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'union (select t12.i from t1 t12))
@@ -5192,35 +5193,23 @@ a	1
 1	1
 2	1
 SELECT * FROM t1 JOIN ((SELECT 1 UNION SELECT 1)) ON 1;
-ERROR 42000: Every derived table must have its own alias
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'ON 1' at line 1
 SELECT * FROM t1 JOIN  (t1 t1a UNION SELECT 1)  ON 1;
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'SELECT 1)  ON 1' at line 1
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1)  ON 1' at line 1
 SELECT * FROM t1 JOIN ((t1 t1a UNION SELECT 1)) ON 1;
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'SELECT 1)) ON 1' at line 1
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1)) ON 1' at line 1
 SELECT * FROM t1 JOIN  (t1 t1a)  t1a ON 1;
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 't1a ON 1' at line 1
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ')  t1a ON 1' at line 1
 SELECT * FROM t1 JOIN ((t1 t1a)) t1a ON 1;
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 't1a ON 1' at line 1
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ')) t1a ON 1' at line 1
 SELECT * FROM t1 JOIN  (t1 t1a)  ON 1;
-a	a
-1	1
-2	1
-1	2
-2	2
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ')  ON 1' at line 1
 SELECT * FROM t1 JOIN ((t1 t1a)) ON 1;
-a	a
-1	1
-2	1
-1	2
-2	2
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ')) ON 1' at line 1
 SELECT * FROM (t1 t1a);
-a
-1
-2
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ')' at line 1
 SELECT * FROM ((t1 t1a));
-a
-1
-2
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '))' at line 1
 SELECT * FROM t1 JOIN  (SELECT 1 t1a) alias ON 1;
 a	t1a
 1	1
@@ -5295,11 +5284,14 @@ SELECT ( SELECT a FROM t1 WHERE a = 1 UNION SELECT 1 ), a FROM t1;
 SELECT * FROM t2 WHERE (a, b) IN (SELECT a, b FROM t2);
 a	b
 SELECT 1 UNION ( SELECT 1 UNION SELECT 1 );
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 )' at line 1
+1
+1
 ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1;
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 ) UNION SELECT 1' at line 1
+1
+1
 SELECT ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) );
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 ) )' at line 1
+( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) )
+1
 SELECT ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1;
 ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1' at line 1
 SELECT ( SELECT 1 UNION SELECT 1 UNION SELECT 1 );
@@ -5309,9 +5301,9 @@ SELECT ((SELECT 1 UNION SELECT 1 UNION SELECT 1));
 ((SELECT 1 UNION SELECT 1 UNION SELECT 1))
 1
 SELECT * FROM ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) );
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 ) )' at line 1
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1
 SELECT * FROM ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 );
-ERROR 42000: Every derived table must have its own alias
+ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1
 SELECT * FROM ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ) a;
 1
 1
@@ -5319,19 +5311,25 @@ SELECT * FROM ( SELECT 1 UNION SELECT 1 UNION SELECT 1 ) a;
 1
 1
 SELECT * FROM t1 WHERE a =     ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) );
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 ) )' at line 1
+a
+1
 SELECT * FROM t1 WHERE a = ALL ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) );
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 ) )' at line 1
+a
+1
 SELECT * FROM t1 WHERE a = ANY ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) );
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 ) )' at line 1
+a
+1
 SELECT * FROM t1 WHERE a IN    ( SELECT 1 UNION ( SELECT 1 UNION SELECT 1 ) );
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 ) )' at line 1
+a
+1
 SELECT * FROM t1 WHERE a =     ( ( SELECT 1 UNION SELECT 1 )  UNION SELECT 1 );
 ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 )' at line 1
 SELECT * FROM t1 WHERE a = ALL ( ( SELECT 1 UNION SELECT 1 )  UNION SELECT 1 );
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 )  UNION SELECT 1 )' at line 1
+a
+1
 SELECT * FROM t1 WHERE a = ANY ( ( SELECT 1 UNION SELECT 1 )  UNION SELECT 1 );
-ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 )  UNION SELECT 1 )' at line 1
+a
+1
 SELECT * FROM t1 WHERE a IN    ( ( SELECT 1 UNION SELECT 1 )  UNION SELECT 1 );
 ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'UNION SELECT 1 )' at line 1
 SELECT * FROM t1 WHERE a =     ( SELECT 1 UNION SELECT 1 UNION SELECT 1 );