MDEV-8380: Subquery parse error

backport mysql parser fixes
0034963fbf199696792491bcb79d5f0731c98804
5948561812bc691bd0c13cf518a3fe77d9daf920

Author: sanja-byelkin

mysql-test/r/parser.result

@@ -650,3 +650,230 @@ CREATE TABLE t1(a INT);
 SELECT * FROM t1 JOIN ((SELECT 1 AS b) UNION ALL (SELECT 2 AS b) ORDER BY b DESC) s1 WHERE a=1;
 a	b
 DROP TABLE t1;
+#
+# Test of collective fix for three parser bugs:
+#
+# Bug #17727401, Bug #17426017, Bug #17473479:
+#   The server accepts wrong syntax and then fails in different ways
+#
+CREATE TABLE t1 (i INT);
+# bug #17426017
+SELECT (SELECT EXISTS(SELECT * LIMIT 1 ORDER BY VALUES (c00)));
+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 'ORDER BY VALUES (c00)))' at line 1
+# bug#17473479
+CREATE TABLE a(a int);
+CREATE TABLE b(a int);
+DELETE FROM b ORDER BY(SELECT 1 FROM a ORDER BY a ORDER BY a);
+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 'ORDER BY a)' at line 1
+DROP TABLE a, b;
+# bug #17727401
+SELECT '' IN (SELECT '1' c FROM t1 ORDER BY '' ORDER BY '') 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 'ORDER BY '') FROM t1' at line 1
+# regression & coverage tests
+# uniform syntax for FROM DUAL clause:
+SELECT 1 FROM DUAL WHERE 1 GROUP BY 1 HAVING 1 ORDER BY 1
+FOR UPDATE;
+1
+1
+SELECT 1 FROM DUAL WHERE 1 GROUP BY 1 HAVING 1 ORDER BY 1
+PROCEDURE ANALYSE() FOR UPDATE;
+ERROR HY000: Can't use ORDER clause with this procedure
+SELECT 1 FROM
+(SELECT 1 FROM DUAL WHERE 1 GROUP BY 1 HAVING 1 ORDER BY 1
+FOR UPDATE) a;
+1
+1
+SELECT 1 FROM
+(SELECT 1 FROM DUAL WHERE 1 GROUP BY 1 HAVING 1 ORDER BY 1
+PROCEDURE ANALYSE() FOR UPDATE) a;
+ERROR HY000: Incorrect usage of PROCEDURE and subquery
+SELECT 1 FROM t1
+WHERE EXISTS(SELECT 1 FROM DUAL WHERE 1 GROUP BY 1 HAVING 1 ORDER BY 1
+FOR UPDATE);
+1
+SELECT 1 FROM t1
+WHERE EXISTS(SELECT 1 FROM DUAL WHERE 1 GROUP BY 1 HAVING 1 ORDER BY 1
+PROCEDURE ANALYSE() FOR UPDATE);
+ERROR HY000: Incorrect usage of PROCEDURE and subquery
+SELECT 1 FROM t1
+UNION
+SELECT 1 FROM DUAL WHERE 1 GROUP BY 1 HAVING 1 ORDER BY 1
+FOR UPDATE;
+1
+1
+SELECT 1 FROM t1
+UNION
+SELECT 1 FROM DUAL WHERE 1 GROUP BY 1 HAVING 1 ORDER BY 1
+PROCEDURE ANALYSE() FOR UPDATE;
+ERROR HY000: Incorrect usage of PROCEDURE and subquery
+SELECT 1 FROM DUAL PROCEDURE ANALYSE() 
+UNION
+SELECT 1 FROM t1;
+ERROR HY000: Incorrect usage of UNION and SELECT ... PROCEDURE ANALYSE()
+(SELECT 1 FROM t1)
+UNION 
+(SELECT 1 FROM DUAL WHERE 1 GROUP BY 1 HAVING 1 ORDER BY 1
+FOR UPDATE);
+1
+1
+(SELECT 1 FROM t1)
+UNION 
+(SELECT 1 FROM DUAL WHERE 1 GROUP BY 1 HAVING 1 ORDER BY 1
+PROCEDURE ANALYSE() FOR UPDATE);
+ERROR HY000: Incorrect usage of PROCEDURE and subquery
+# "FOR UPDATE" tests
+SELECT 1 FROM t1 UNION SELECT 1 FROM t1 ORDER BY 1 LIMIT 1;
+1
+SELECT 1 FROM t1 FOR UPDATE UNION SELECT 1 FROM t1 ORDER BY 1 LIMIT 1;
+1
+SELECT 1 FROM t1 UNION SELECT 1 FROM t1 ORDER BY 1 LIMIT 1 FOR UPDATE;
+1
+# "INTO" clause tests
+SELECT 1 FROM t1 INTO @var17727401;
+Warnings:
+Warning	1329	No data - zero rows fetched, selected, or processed
+SELECT 1 FROM DUAL INTO @var17727401;
+SELECT 1 INTO @var17727401;
+SELECT 1 INTO @var17727401 FROM t1;
+Warnings:
+Warning	1329	No data - zero rows fetched, selected, or processed
+SELECT 1 INTO @var17727401 FROM DUAL;
+SELECT 1 INTO @var17727401_1 FROM t1 INTO @var17727401_2;
+ERROR HY000: Incorrect usage of INTO and INTO
+SELECT 1 INTO @var17727401_1 FROM DUAL
+INTO @var17727401_2;
+ERROR HY000: Incorrect usage of INTO and INTO
+SELECT 1 INTO @var17727401 FROM t1 WHERE 1 GROUP BY 1 HAVING 1 ORDER BY 1 LIMIT 1;
+Warnings:
+Warning	1329	No data - zero rows fetched, selected, or processed
+SELECT 1 FROM t1 WHERE 1 GROUP BY 1 HAVING 1 ORDER BY 1 LIMIT 1 INTO @var17727401;
+Warnings:
+Warning	1329	No data - zero rows fetched, selected, or processed
+SELECT 1 FROM t1 WHERE 1 INTO @var17727401 GROUP BY 1 HAVING 1 ORDER BY 1 LIMIT 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 'GROUP BY 1 HAVING 1 ORDER BY 1 LIMIT 1' at line 1
+SELECT 1 INTO @var17727401_1
+FROM t1 WHERE 1 GROUP BY 1 HAVING 1 ORDER BY 1 LIMIT 1
+INTO @var17727401_2;
+ERROR HY000: Incorrect usage of INTO and INTO
+SELECT (SELECT 1 FROM t1 INTO @var17727401);
+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 'INTO @var17727401)' at line 1
+SELECT 1 FROM (SELECT 1 FROM t1 INTO @var17727401) a;
+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 'INTO @var17727401) a' at line 1
+SELECT EXISTS(SELECT 1 FROM t1 INTO @var17727401);
+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 'INTO @var17727401)' at line 1
+SELECT 1 FROM t1 INTO @var17727401 UNION SELECT 1 FROM t1 INTO t1;
+ERROR HY000: Incorrect usage of UNION and INTO
+(SELECT 1 FROM t1 INTO @var17727401) UNION (SELECT 1 FROM t1 INTO t1);
+ERROR HY000: Incorrect usage of UNION and INTO
+SELECT 1 FROM t1 UNION SELECT 1 FROM t1 INTO @var17727401;
+Warnings:
+Warning	1329	No data - zero rows fetched, selected, or processed
+SELECT 1 INTO @var17727401 FROM t1 PROCEDURE ANALYSE();
+ERROR HY000: Incorrect usage of PROCEDURE and INTO
+SELECT 1 FROM t1 PROCEDURE ANALYSE() INTO @var17727401;
+ERROR HY000: Incorrect usage of PROCEDURE and INTO
+# ORDER and LIMIT clause combinations
+(SELECT 1 FROM t1 ORDER BY 1) ORDER BY 1;
+1
+(SELECT 1 FROM t1 LIMIT 1) LIMIT 1;
+1
+((SELECT 1 FROM t1 ORDER BY 1) ORDER BY 1) ORDER BY 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 'ORDER BY 1) ORDER BY 1' at line 1
+((SELECT 1 FROM t1 LIMIT 1) LIMIT 1) LIMIT 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 'LIMIT 1) LIMIT 1' at line 1
+(SELECT 1 FROM t1 ORDER BY 1) LIMIT 1;
+1
+(SELECT 1 FROM t1 LIMIT 1) ORDER BY 1;
+1
+((SELECT 1 FROM t1 ORDER BY 1) LIMIT 1) ORDER BY 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 'LIMIT 1) ORDER BY 1)' at line 1
+((SELECT 1 FROM t1 LIMIT 1) ORDER BY 1) LIMIT 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 'ORDER BY 1) LIMIT 1)' at line 1
+SELECT 1 FROM t1 UNION SELECT 1 FROM t1 ORDER BY 1;
+1
+SELECT (SELECT 1 FROM t1 UNION SELECT 1 FROM t1 ORDER BY 1);
+(SELECT 1 FROM t1 UNION SELECT 1 FROM t1 ORDER BY 1)
+NULL
+SELECT 1 FROM (SELECT 1 FROM t1 UNION SELECT 1 FROM t1 ORDER BY 1) a;
+1
+SELECT 1 FROM t1 UNION SELECT 1 FROM t1 LIMIT 1;
+1
+SELECT (SELECT 1 FROM t1 UNION SELECT 1 FROM t1 LIMIT 1);
+(SELECT 1 FROM t1 UNION SELECT 1 FROM t1 LIMIT 1)
+NULL
+SELECT 1 FROM (SELECT 1 FROM t1 UNION SELECT 1 FROM t1 LIMIT 1) a;
+1
+SELECT 1 FROM t1 UNION SELECT 1 FROM t1 ORDER BY 1 LIMIT 1;
+1
+SELECT (SELECT 1 FROM t1 UNION SELECT 1 FROM t1 ORDER BY 1 LIMIT 1);
+(SELECT 1 FROM t1 UNION SELECT 1 FROM t1 ORDER BY 1 LIMIT 1)
+NULL
+SELECT 1 FROM (SELECT 1 FROM t1 UNION SELECT 1 FROM t1 ORDER BY 1 LIMIT 1) a;
+1
+SELECT 1 FROM t1 UNION SELECT 1 FROM t1 LIMIT 1 ORDER BY 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 'ORDER BY 1' at line 1
+SELECT (SELECT 1 FROM t1 UNION SELECT 1 FROM t1 LIMIT 1 ORDER BY 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 'ORDER BY 1)' at line 1
+SELECT 1 FROM (SELECT 1 FROM t1 UNION SELECT 1 FROM t1 LIMIT 1 ORDER BY 1) a;
+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 'ORDER BY 1) a' at line 1
+SELECT 1 FROM t1 ORDER BY 1 UNION SELECT 1 FROM t1;
+ERROR HY000: Incorrect usage of UNION and ORDER BY
+SELECT (SELECT 1 FROM t1 ORDER BY 1 UNION SELECT 1 FROM t1);
+ERROR HY000: Incorrect usage of UNION and ORDER BY
+SELECT 1 FROM (SELECT 1 FROM t1 ORDER BY 1 UNION SELECT 1 FROM t1) a;
+ERROR HY000: Incorrect usage of UNION and ORDER BY
+SELECT 1 FROM t1 LIMIT 1 UNION SELECT 1 FROM t1;
+ERROR HY000: Incorrect usage of UNION and LIMIT
+SELECT (SELECT 1 FROM t1 LIMIT 1 UNION SELECT 1 FROM t1);
+ERROR HY000: Incorrect usage of UNION and LIMIT
+SELECT 1 FROM (SELECT 1 FROM t1 LIMIT 1 UNION SELECT 1 FROM t1) a;
+ERROR HY000: Incorrect usage of UNION and LIMIT
+SELECT 1 FROM t1 ORDER BY 1 LIMIT 1 UNION SELECT 1 FROM t1;
+ERROR HY000: Incorrect usage of UNION and ORDER BY
+SELECT (SELECT 1 FROM t1 ORDER BY 1 LIMIT 1 UNION SELECT 1 FROM t1);
+ERROR HY000: Incorrect usage of UNION and ORDER BY
+SELECT 1 FROM (SELECT 1 FROM t1 ORDER BY 1 LIMIT 1 UNION SELECT 1 FROM t1) a;
+ERROR HY000: Incorrect usage of UNION and ORDER BY
+SELECT 1 FROM t1 LIMIT 1 ORDER BY 1 UNION SELECT 1 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 'ORDER BY 1 UNION SELECT 1 FROM t1' at line 1
+SELECT (SELECT 1 FROM t1 LIMIT 1 ORDER BY 1 UNION SELECT 1 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 'ORDER BY 1 UNION SELECT 1 FROM t1)' at line 1
+SELECT 1 FROM (SELECT 1 FROM t1 LIMIT 1 ORDER BY 1 UNION SELECT 1 FROM t1) a;
+ERROR HY000: Incorrect usage of UNION and ORDER BY
+SELECT 1 FROM t1 ORDER BY 1 UNION SELECT 1 FROM t1 ORDER BY 1;
+ERROR HY000: Incorrect usage of UNION and ORDER BY
+SELECT (SELECT 1 FROM t1 ORDER BY 1 UNION SELECT 1 FROM t1 ORDER BY 1);
+ERROR HY000: Incorrect usage of UNION and ORDER BY
+SELECT 1 FROM (SELECT 1 FROM t1 ORDER BY 1 UNION SELECT 1 FROM t1 ORDER BY 1) a;
+ERROR HY000: Incorrect usage of UNION and ORDER BY
+SELECT 1 FROM t1 LIMIT 1 UNION SELECT 1 FROM t1 LIMIT 1;
+ERROR HY000: Incorrect usage of UNION and LIMIT
+SELECT (SELECT 1 FROM t1 LIMIT 1 UNION SELECT 1 FROM t1 LIMIT 1);
+ERROR HY000: Incorrect usage of UNION and LIMIT
+SELECT 1 FROM (SELECT 1 FROM t1 LIMIT 1 UNION SELECT 1 FROM t1 LIMIT 1) a;
+ERROR HY000: Incorrect usage of UNION and LIMIT
+SELECT 1 FROM t1 LIMIT 1 UNION SELECT 1 FROM t1 ORDER BY 1;
+ERROR HY000: Incorrect usage of UNION and LIMIT
+SELECT (SELECT 1 FROM t1 LIMIT 1 UNION SELECT 1 FROM t1 ORDER BY 1);
+ERROR HY000: Incorrect usage of UNION and LIMIT
+SELECT 1 FROM (SELECT 1 FROM t1 LIMIT 1 UNION SELECT 1 FROM t1 ORDER BY 1) a;
+ERROR HY000: Incorrect usage of UNION and LIMIT
+SELECT 1 FROM t1 ORDER BY 1 UNION SELECT 1 FROM t1 LIMIT 1;
+ERROR HY000: Incorrect usage of UNION and ORDER BY
+SELECT (SELECT 1 FROM t1 ORDER BY 1 UNION SELECT 1 FROM t1 LIMIT 1);
+ERROR HY000: Incorrect usage of UNION and ORDER BY
+SELECT 1 FROM (SELECT 1 FROM t1 ORDER BY 1 UNION SELECT 1 FROM t1 LIMIT 1) a;
+ERROR HY000: Incorrect usage of UNION and ORDER BY
+DROP TABLE t1;
+#
+# MDEV-8380: Subquery parse error
+#
+CREATE TABLE t1 ( a INT);
+INSERT INTO t1 VALUES ( 2 );
+SELECT *
+FROM ( (SELECT a FROM t1 ORDER BY a) UNION (SELECT 1 as b ORDER BY b ) ) AS a1
+WHERE a1.a = 1 OR a1.a = 2;
+a
+2
+1
+DROP TABLE t1;

mysql-test/r/subselect.result

@@ -5138,8 +5138,9 @@ SELECT a FROM t1 WHERE a = 2
 a
 1
 2
-SELECT * FROM ((SELECT 1 a) UNION SELECT 1 a);
-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 a) UNION SELECT 1 a) q;
+a
+1
 SELECT * FROM (SELECT 1 a UNION (SELECT 1 a)) alias;
 a
 1
@@ -5181,7 +5182,7 @@ a	1
 1	1
 2	1
 SELECT * FROM t1 JOIN ((SELECT 1 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 ')) ON 1' at line 1
+ERROR 42000: Every derived table must have its own alias
 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 ')  ON 1' at line 1
 SELECT * FROM t1 JOIN ((t1 t1a UNION SELECT 1)) ON 1;
@@ -5300,7 +5301,10 @@ SELECT ((SELECT 1 UNION SELECT 1 UNION SELECT 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
 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: Every derived table must have its own alias
+SELECT * FROM ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ) a;
+1
+1
 SELECT * FROM ( SELECT 1 UNION SELECT 1 UNION SELECT 1 ) a;
 1
 1

mysql-test/r/subselect_no_exists_to_in.result

@@ -5140,8 +5140,9 @@ SELECT a FROM t1 WHERE a = 2
 a
 1
 2
-SELECT * FROM ((SELECT 1 a) UNION SELECT 1 a);
-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 a) UNION SELECT 1 a) q;
+a
+1
 SELECT * FROM (SELECT 1 a UNION (SELECT 1 a)) alias;
 a
 1
@@ -5183,7 +5184,7 @@ a	1
 1	1
 2	1
 SELECT * FROM t1 JOIN ((SELECT 1 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 ')) ON 1' at line 1
+ERROR 42000: Every derived table must have its own alias
 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 ')  ON 1' at line 1
 SELECT * FROM t1 JOIN ((t1 t1a UNION SELECT 1)) ON 1;
@@ -5302,7 +5303,10 @@ SELECT ((SELECT 1 UNION SELECT 1 UNION SELECT 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
 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: Every derived table must have its own alias
+SELECT * FROM ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ) a;
+1
+1
 SELECT * FROM ( SELECT 1 UNION SELECT 1 UNION SELECT 1 ) a;
 1
 1

mysql-test/r/subselect_no_mat.result

@@ -5138,8 +5138,9 @@ SELECT a FROM t1 WHERE a = 2
 a
 1
 2
-SELECT * FROM ((SELECT 1 a) UNION SELECT 1 a);
-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 a) UNION SELECT 1 a) q;
+a
+1
 SELECT * FROM (SELECT 1 a UNION (SELECT 1 a)) alias;
 a
 1
@@ -5181,7 +5182,7 @@ a	1
 1	1
 2	1
 SELECT * FROM t1 JOIN ((SELECT 1 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 ')) ON 1' at line 1
+ERROR 42000: Every derived table must have its own alias
 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 ')  ON 1' at line 1
 SELECT * FROM t1 JOIN ((t1 t1a UNION SELECT 1)) ON 1;
@@ -5300,7 +5301,10 @@ SELECT ((SELECT 1 UNION SELECT 1 UNION SELECT 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
 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: Every derived table must have its own alias
+SELECT * FROM ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ) a;
+1
+1
 SELECT * FROM ( SELECT 1 UNION SELECT 1 UNION SELECT 1 ) a;
 1
 1

mysql-test/r/subselect_no_opts.result

@@ -5134,8 +5134,9 @@ SELECT a FROM t1 WHERE a = 2
 a
 1
 2
-SELECT * FROM ((SELECT 1 a) UNION SELECT 1 a);
-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 a) UNION SELECT 1 a) q;
+a
+1
 SELECT * FROM (SELECT 1 a UNION (SELECT 1 a)) alias;
 a
 1
@@ -5177,7 +5178,7 @@ a	1
 1	1
 2	1
 SELECT * FROM t1 JOIN ((SELECT 1 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 ')) ON 1' at line 1
+ERROR 42000: Every derived table must have its own alias
 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 ')  ON 1' at line 1
 SELECT * FROM t1 JOIN ((t1 t1a UNION SELECT 1)) ON 1;
@@ -5296,7 +5297,10 @@ SELECT ((SELECT 1 UNION SELECT 1 UNION SELECT 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
 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: Every derived table must have its own alias
+SELECT * FROM ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ) a;
+1
+1
 SELECT * FROM ( SELECT 1 UNION SELECT 1 UNION SELECT 1 ) a;
 1
 1

mysql-test/r/subselect_no_scache.result

@@ -5144,8 +5144,9 @@ SELECT a FROM t1 WHERE a = 2
 a
 1
 2
-SELECT * FROM ((SELECT 1 a) UNION SELECT 1 a);
-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 a) UNION SELECT 1 a) q;
+a
+1
 SELECT * FROM (SELECT 1 a UNION (SELECT 1 a)) alias;
 a
 1
@@ -5187,7 +5188,7 @@ a	1
 1	1
 2	1
 SELECT * FROM t1 JOIN ((SELECT 1 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 ')) ON 1' at line 1
+ERROR 42000: Every derived table must have its own alias
 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 ')  ON 1' at line 1
 SELECT * FROM t1 JOIN ((t1 t1a UNION SELECT 1)) ON 1;
@@ -5306,7 +5307,10 @@ SELECT ((SELECT 1 UNION SELECT 1 UNION SELECT 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
 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: Every derived table must have its own alias
+SELECT * FROM ( ( SELECT 1 UNION SELECT 1 ) UNION SELECT 1 ) a;
+1
+1
 SELECT * FROM ( SELECT 1 UNION SELECT 1 UNION SELECT 1 ) a;
 1
 1