From 645191aa1338caa397124e5c02002d93a07a628b Mon Sep 17 00:00:00 2001
From: Igor Babaev <igor@askmonty.org>
Date: Thu, 20 Jun 2019 18:50:20 -0700
Subject: MDEV-19778 Wrong Result on Left Outer Join with Subquery right on
 true            and WHERE filter afterwards

This patch complements the patch fixing the bug MDEV-6892. The latter
properly handled queries that used mergeable views returning constant
columns as inner tables of outer joins and whose where clause contained
predicates referring to these columns if the predicates of happened not
to be equality predicates. Otherwise the server still could return wrong
result sets for such queries. Besides the fix for MDEV-6892 prevented
some possible conversions of outer joins to inner joins for such queries.

This patch corrected the function check_simple_equality() to handle
properly conjunctive equalities of the where clause that refer to the
constant columns of mergeable views used as inner tables of an outer join.
The patch also changed the code of Item_direct_view_ref::not_null_tables().
This change allowed to take into account predicates containing references
to constant columns of mergeable views when converting outer joins into
inner joins.
---
 mysql-test/r/derived.result         |  9 ++++++
 mysql-test/r/derived_view.result    | 57 +++++++++++++++++++++++++++++++++++++
 mysql-test/r/func_group.result      |  2 ++
 mysql-test/r/subselect_cache.result |  2 ++
 4 files changed, 70 insertions(+)

(limited to 'mysql-test/r')

diff --git a/mysql-test/r/derived.result b/mysql-test/r/derived.result
index 2c0d0095678..97149633269 100644
--- a/mysql-test/r/derived.result
+++ b/mysql-test/r/derived.result
@@ -578,6 +578,15 @@ select x.id, message from (select id from t1) x left join
 (select id, 1 as message from t2) y on x.id=y.id
 where coalesce(message,0) <> 0;
 id	message
+explain extended
+select x.id, message from (select id from t1) x left join
+(select id, 1 as message from t2) y on x.id=y.id
+where message <> 0;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`id` AS `id`,1 AS `message` from `test`.`t1` join `test`.`t2` where (`test`.`t2`.`id` = `test`.`t1`.`id`)
 drop table t1,t2;
 #
 # MDEV-7827: Assertion `!table || (!table->read_set ||
diff --git a/mysql-test/r/derived_view.result b/mysql-test/r/derived_view.result
index f8cf9190126..412786c48e2 100644
--- a/mysql-test/r/derived_view.result
+++ b/mysql-test/r/derived_view.result
@@ -3041,3 +3041,60 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 7	DERIVED	p9	ALL	NULL	NULL	NULL	NULL	550	Using where; Using join buffer (incremental, BNL join)
 7	DERIVED	p10	ALL	NULL	NULL	NULL	NULL	550	Using where; Using join buffer (incremental, BNL join)
 DROP TABLE  t1, t2;
+#
+# MDEV-19778: equality condition for mergeable view returning constants
+#             in its columns and used as inner table of outer join
+#
+create table t1 (pk int, a int);
+insert into t1 values (1,7), (2,3), (3,2), (4,3);
+create table t2 (b int);
+insert into t2 values (5), (1), (NULL), (3);
+create table t3 (c int);
+insert into t3 values (1), (8);
+create view v1 as
+select 3 as d, t2.b from t2;
+select * from t1 left join v1 on t1.pk <= 2 where t1.a=v1.d;
+pk	a	d	b
+2	3	3	5
+2	3	3	1
+2	3	3	NULL
+2	3	3	3
+explain extended select * from t1 left join v1 on t1.pk <= 2 where t1.a=v1.d;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	4	100.00	Using join buffer (flat, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`pk` AS `pk`,`test`.`t1`.`a` AS `a`,3 AS `d`,`test`.`t2`.`b` AS `b` from `test`.`t1` join `test`.`t2` where ((`test`.`t1`.`a` = 3) and (`test`.`t1`.`pk` <= 2))
+select * from t1 left join (select 3 as d, t2.b from t2) dt on t1.pk <= 2
+where t1.a=dt.d;
+pk	a	d	b
+2	3	3	5
+2	3	3	1
+2	3	3	NULL
+2	3	3	3
+explain extended select * from t1 left join (select 3 as d, t2.b from t2) dt on t1.pk <= 2
+where t1.a=dt.d;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	4	100.00	Using join buffer (flat, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`pk` AS `pk`,`test`.`t1`.`a` AS `a`,3 AS `d`,`test`.`t2`.`b` AS `b` from `test`.`t1` join `test`.`t2` where ((`test`.`t1`.`a` = 3) and (`test`.`t1`.`pk` <= 2))
+select * from t1 left join (v1,t3) on t1.pk <= 2 where t1.a=v1.d;
+pk	a	d	b	c
+2	3	3	5	1
+2	3	3	5	8
+2	3	3	1	1
+2	3	3	1	8
+2	3	3	NULL	1
+2	3	3	NULL	8
+2	3	3	3	1
+2	3	3	3	8
+explain extended select * from t1 left join (v1,t3) on t1.pk <= 2 where t1.a=v1.d;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	2	100.00	
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where; Using join buffer (flat, BNL join)
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	4	100.00	Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`pk` AS `pk`,`test`.`t1`.`a` AS `a`,3 AS `d`,`test`.`t2`.`b` AS `b`,`test`.`t3`.`c` AS `c` from `test`.`t1` join `test`.`t2` join `test`.`t3` where ((`test`.`t1`.`a` = 3) and (`test`.`t1`.`pk` <= 2))
+drop view v1;
+drop table t1,t2,t3;
diff --git a/mysql-test/r/func_group.result b/mysql-test/r/func_group.result
index 38fae2f0a4f..c1de5d93537 100644
--- a/mysql-test/r/func_group.result
+++ b/mysql-test/r/func_group.result
@@ -1981,6 +1981,7 @@ NULL
 Warnings:
 Warning	1292	Truncated incorrect INTEGER value: 'j'
 Warning	1292	Truncated incorrect INTEGER value: 'j'
+Warning	1292	Truncated incorrect INTEGER value: 'j'
 
 EXPLAIN
 SELECT MIN(t2.pk)
@@ -1995,6 +1996,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 Warnings:
 Warning	1292	Truncated incorrect INTEGER value: 'j'
 Warning	1292	Truncated incorrect INTEGER value: 'j'
+Warning	1292	Truncated incorrect INTEGER value: 'j'
 
 #
 # 2) Test that subquery materialization is setup for query with
diff --git a/mysql-test/r/subselect_cache.result b/mysql-test/r/subselect_cache.result
index 95f935981c2..0bdef7a8e71 100644
--- a/mysql-test/r/subselect_cache.result
+++ b/mysql-test/r/subselect_cache.result
@@ -3130,6 +3130,7 @@ WHERE table1 .`col_varchar_key` )	field10
 Warnings:
 Warning	1292	Truncated incorrect DOUBLE value: 'f'
 Warning	1292	Truncated incorrect DOUBLE value: 'f'
+Warning	1292	Truncated incorrect DOUBLE value: 'f'
 SET @@optimizer_switch = 'subquery_cache=on';
 /* cache is on */ SELECT COUNT( DISTINCT table2 .`col_int_key` ) , (
 SELECT SUBQUERY2_t1 .`col_int_key`
@@ -3146,6 +3147,7 @@ WHERE table1 .`col_varchar_key` )	field10
 Warnings:
 Warning	1292	Truncated incorrect DOUBLE value: 'f'
 Warning	1292	Truncated incorrect DOUBLE value: 'f'
+Warning	1292	Truncated incorrect DOUBLE value: 'f'
 drop table t1,t2,t3,t4;
 set @@optimizer_switch= default;
 #launchpad BUG#611625
-- 
cgit v1.2.1


From 69be8f3c5bdd507fa924194f8b15f6bc90a01f3b Mon Sep 17 00:00:00 2001
From: Anel Husakovic <anel@mariadb.org>
Date: Fri, 14 Jun 2019 00:33:01 -0700
Subject: Apply valid parameter type for test case in i_s_parameters.test

---
 mysql-test/r/information_schema_parameters.result | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'mysql-test/r')

diff --git a/mysql-test/r/information_schema_parameters.result b/mysql-test/r/information_schema_parameters.result
index 93c7634a910..1a17c7c3a5e 100644
--- a/mysql-test/r/information_schema_parameters.result
+++ b/mysql-test/r/information_schema_parameters.result
@@ -392,7 +392,7 @@ SPECIFIC_CATALOG	SPECIFIC_SCHEMA	SPECIFIC_NAME	ORDINAL_POSITION	PARAMETER_MODE	P
 DROP DATABASE IF EXISTS i_s_parameters_test;
 CREATE DATABASE i_s_parameters_test;
 USE i_s_parameters_test;
-CREATE PROCEDURE testproc (OUT param1 INT)
+CREATE PROCEDURE testproc (IN param1 INT)
 BEGIN
 SELECT 2+2 as param1;
 END;
@@ -400,7 +400,7 @@ END;
 SELECT * FROM INFORMATION_SCHEMA.PARAMETERS
 WHERE SPECIFIC_SCHEMA = 'i_s_parameters_test' AND SPECIFIC_NAME = 'testproc';
 SPECIFIC_CATALOG	SPECIFIC_SCHEMA	SPECIFIC_NAME	ORDINAL_POSITION	PARAMETER_MODE	PARAMETER_NAME	DATA_TYPE	CHARACTER_MAXIMUM_LENGTH	CHARACTER_OCTET_LENGTH	NUMERIC_PRECISION	NUMERIC_SCALE	DATETIME_PRECISION	CHARACTER_SET_NAME	COLLATION_NAME	DTD_IDENTIFIER	ROUTINE_TYPE
-def	i_s_parameters_test	testproc	1	OUT	param1	int	NULL	NULL	10	0	NULL	NULL	NULL	int(11)	PROCEDURE
+def	i_s_parameters_test	testproc	1	IN	param1	int	NULL	NULL	10	0	NULL	NULL	NULL	int(11)	PROCEDURE
 # ========== parameters.5 ==========
 DROP DATABASE IF EXISTS i_s_parameters_test;
 CREATE DATABASE i_s_parameters_test;
-- 
cgit v1.2.1


From 8540fa83bb34df6a3d489a4e85c77692f36e3e26 Mon Sep 17 00:00:00 2001
From: Igor Babaev <igor@askmonty.org>
Date: Sun, 30 Jun 2019 13:16:12 -0700
Subject: MDEV-19421 Basic 3-way join queries are not parsed.

The parser returned a syntax error message for the queries with join
expressions like this t1 JOIN t2 [LEFT | RIGHT] JOIN t3 ON ... ON ... when
the second operand of the outer JOIN operation with ON clause was another
join expression with ON clause. In this expression the JOIN operator is
right-associative, i.e. expression has to be parsed as the expression
t1 JOIN (t2 [LEFT | RIGHT] JOIN t3 ON ... ) ON ...
Such join expressions are hard to parse because the outer JOIN is
left-associative if there is no ON clause for the first outer JOIN operator.
The patch implements the solution when the JOIN operator is always parsed
as right-associative and builds first the right-associative tree. If it
happens that there is no corresponding ON clause for this operator the
tree is converted to left-associative.

The idea of the solution was taken from the patch by Martin Hansson
"WL#8083: Fixed the join_table rule" from MySQL-8.0 code line.
As the grammar rules related to join expressions in MySQL-8.0 and
MariaDB-5.5+ are quite different MariaDB solution could not borrow
any code from the MySQL-8.0 solution.
---
 mysql-test/r/join.result              | 1384 +++++++++++++++++++++++++++++++++
 mysql-test/r/join_outer_innodb.result |    2 +-
 2 files changed, 1385 insertions(+), 1 deletion(-)

(limited to 'mysql-test/r')

diff --git a/mysql-test/r/join.result b/mysql-test/r/join.result
index 2e5ee30b54e..6b051acc108 100644
--- a/mysql-test/r/join.result
+++ b/mysql-test/r/join.result
@@ -1537,5 +1537,1389 @@ ERROR 23000: Column 'c' in field list is ambiguous
 DROP PROCEDURE p1;
 DROP TABLE t1,t2,t3,t4,t5;
 #
+# MDEV-19421: Embedding inner joins
+#
+create table t1 (a int);
+insert into t1 values (7), (5), (3);
+create table s1 (b int);
+insert into s1 values (7), (5), (3);
+create table t2 (a int);
+insert into t2 values (5), (1), (7);
+create table s2 (b int);
+insert into s2 values (5), (1), (7);
+create table t3 (a int);
+insert into t3 values (2), (7), (3);
+create table t4 (a int);
+insert into t4 values (4), (7), (9), (5);
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join t2 join t3 on t2.a=t3.a on t1.a=t2.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a` from `test`.`t1` join `test`.`t2` join `test`.`t3` where ((`test`.`t2`.`a` = `test`.`t1`.`a`) and (`test`.`t3`.`a` = `test`.`t1`.`a`))
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join t2 join t3 on t2.a=t3.a on t1.a=t2.a;
+t1_a	t2_a	t3_a
+7	7	7
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join t2 left join t3 on t2.a=t3.a on t1.a=t2.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a` from `test`.`t1` join `test`.`t2` left join `test`.`t3` on((`test`.`t3`.`a` = `test`.`t1`.`a`)) where (`test`.`t2`.`a` = `test`.`t1`.`a`)
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join t2 left join t3 on t2.a=t3.a on t1.a=t2.a;
+t1_a	t2_a	t3_a
+7	7	7
+5	5	NULL
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join t2 right join t3 on t2.a=t3.a on t1.a=t3.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a` from `test`.`t1` join `test`.`t3` left join `test`.`t2` on((`test`.`t2`.`a` = `test`.`t1`.`a`)) where (`test`.`t3`.`a` = `test`.`t1`.`a`)
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join t2 right join t3 on t2.a=t3.a on t1.a=t3.a;
+t1_a	t2_a	t3_a
+7	7	7
+3	NULL	3
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join t2 join t3 using(a) using(a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a` from `test`.`t1` join `test`.`t2` join `test`.`t3` where ((`test`.`t2`.`a` = `test`.`t1`.`a`) and (`test`.`t3`.`a` = `test`.`t1`.`a`))
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join t2 join t3 using(a) using(a);
+t1_a	t2_a	t3_a
+7	7	7
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join t2 left join t3 using(a) using(a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a` from `test`.`t1` join `test`.`t2` left join `test`.`t3` on((`test`.`t3`.`a` = `test`.`t1`.`a`)) where (`test`.`t2`.`a` = `test`.`t1`.`a`)
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join t2 left join t3 using(a) using(a);
+t1_a	t2_a	t3_a
+7	7	7
+5	5	NULL
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join t2 right join t3 using(a) using(a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a` from `test`.`t1` join `test`.`t3` left join `test`.`t2` on((`test`.`t2`.`a` = `test`.`t1`.`a`)) where (`test`.`t3`.`a` = `test`.`t1`.`a`)
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join t2 right join t3 using(a) using(a);
+t1_a	t2_a	t3_a
+7	7	7
+3	NULL	3
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join t2 join t3 on t2.a=t3.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a` from `test`.`t1` join `test`.`t2` join `test`.`t3` where (`test`.`t3`.`a` = `test`.`t2`.`a`)
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join t2 join t3 on t2.a=t3.a;
+t1_a	t2_a	t3_a
+7	7	7
+5	7	7
+3	7	7
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join t2 left join t3 on t2.a=t3.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a` from `test`.`t1` join `test`.`t2` left join `test`.`t3` on((`test`.`t3`.`a` = `test`.`t2`.`a`)) where 1
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join t2 left join t3 on t2.a=t3.a;
+t1_a	t2_a	t3_a
+7	7	7
+5	7	7
+3	7	7
+7	5	NULL
+5	5	NULL
+3	5	NULL
+7	1	NULL
+5	1	NULL
+3	1	NULL
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join t2 right join t3 on t2.a=t3.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a` from `test`.`t3` left join (`test`.`t1` join `test`.`t2`) on((`test`.`t2`.`a` = `test`.`t3`.`a`)) where 1
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join t2 right join t3 on t2.a=t3.a;
+t1_a	t2_a	t3_a
+7	7	7
+5	7	7
+3	7	7
+NULL	NULL	2
+NULL	NULL	3
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join t2 join t3 on t1.a=t3.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a` from `test`.`t1` join `test`.`t2` join `test`.`t3` where (`test`.`t3`.`a` = `test`.`t1`.`a`)
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join t2 join t3 on t1.a=t3.a;
+t1_a	t2_a	t3_a
+7	5	7
+7	1	7
+7	7	7
+3	5	3
+3	1	3
+3	7	3
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join t2 left join t3 on t1.a=t3.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a` from `test`.`t1` join `test`.`t2` left join `test`.`t3` on((`test`.`t3`.`a` = `test`.`t1`.`a`)) where 1
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join t2 left join t3 on t1.a=t3.a;
+t1_a	t2_a	t3_a
+7	5	7
+7	1	7
+7	7	7
+3	5	3
+3	1	3
+3	7	3
+5	5	NULL
+5	1	NULL
+5	7	NULL
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join t2 right join t3 on t1.a=t3.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a` from `test`.`t3` left join (`test`.`t1` join `test`.`t2`) on((`test`.`t1`.`a` = `test`.`t3`.`a`)) where 1
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join t2 right join t3 on t1.a=t3.a;
+t1_a	t2_a	t3_a
+7	5	7
+3	5	3
+7	1	7
+3	1	3
+7	7	7
+3	7	3
+NULL	NULL	2
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join (t2 join t3 on t2.a=t3.a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a` from `test`.`t1` join `test`.`t2` join `test`.`t3` where (`test`.`t3`.`a` = `test`.`t2`.`a`)
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join (t2 join t3 on t2.a=t3.a);
+t1_a	t2_a	t3_a
+7	7	7
+5	7	7
+3	7	7
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join (t2 left join t3 on t2.a=t3.a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a` from `test`.`t1` join `test`.`t2` left join `test`.`t3` on((`test`.`t3`.`a` = `test`.`t2`.`a`)) where 1
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join (t2 left join t3 on t2.a=t3.a);
+t1_a	t2_a	t3_a
+7	7	7
+5	7	7
+3	7	7
+7	5	NULL
+5	5	NULL
+3	5	NULL
+7	1	NULL
+5	1	NULL
+3	1	NULL
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join (t2 right join t3 on t2.a=t3.a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a` from `test`.`t1` join `test`.`t3` left join `test`.`t2` on((`test`.`t2`.`a` = `test`.`t3`.`a`)) where 1
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join (t2 right join t3 on t2.a=t3.a);
+t1_a	t2_a	t3_a
+7	7	7
+5	7	7
+3	7	7
+7	NULL	2
+5	NULL	2
+3	NULL	2
+7	NULL	3
+5	NULL	3
+3	NULL	3
+explain extended select *
+from s1 join t2 join t3 using(a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	s1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t2`.`a` AS `a`,`test`.`s1`.`b` AS `b` from `test`.`s1` join `test`.`t2` join `test`.`t3` where (`test`.`t3`.`a` = `test`.`t2`.`a`)
+select *
+from s1 join t2 join t3 using(a);
+a	b
+7	7
+7	5
+7	3
+explain extended select *
+from s1 join t2 left join t3 using(a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	s1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t2`.`a` AS `a`,`test`.`s1`.`b` AS `b` from `test`.`s1` join `test`.`t2` left join `test`.`t3` on((`test`.`t3`.`a` = `test`.`t2`.`a`)) where 1
+select *
+from s1 join t2 left join t3 using(a);
+a	b
+7	7
+7	5
+7	3
+5	7
+5	5
+5	3
+1	7
+1	5
+1	3
+explain extended select *
+from s1 join t2 right join t3 using(a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	s1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t3`.`a` AS `a`,`test`.`s1`.`b` AS `b` from `test`.`t3` left join (`test`.`s1` join `test`.`t2`) on((`test`.`t2`.`a` = `test`.`t3`.`a`)) where 1
+select *
+from s1 join t2 right join t3 using(a);
+a	b
+7	7
+7	5
+7	3
+2	NULL
+3	NULL
+explain extended select s1.b, t2.a as t2_a, t3.a as t3_a
+from s1 join t2 join t3 using(a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	s1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`s1`.`b` AS `b`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a` from `test`.`s1` join `test`.`t2` join `test`.`t3` where (`test`.`t3`.`a` = `test`.`t2`.`a`)
+select s1.b, t2.a as t2_a, t3.a as t3_a
+from s1 join t2 join t3 using(a);
+b	t2_a	t3_a
+7	7	7
+5	7	7
+3	7	7
+explain extended select s1.b, t2.a as t2_a, t3.a as t3_a
+from s1 join t2 left join t3 using(a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	s1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`s1`.`b` AS `b`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a` from `test`.`s1` join `test`.`t2` left join `test`.`t3` on((`test`.`t3`.`a` = `test`.`t2`.`a`)) where 1
+select s1.b, t2.a as t2_a, t3.a as t3_a
+from s1 join t2 left join t3 using(a);
+b	t2_a	t3_a
+7	7	7
+5	7	7
+3	7	7
+7	5	NULL
+5	5	NULL
+3	5	NULL
+7	1	NULL
+5	1	NULL
+3	1	NULL
+explain extended select s1.b, t2.a as t2_a, t3.a as t3_a
+from s1 join t2 right join t3 using(a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	s1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`s1`.`b` AS `b`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a` from `test`.`t3` left join (`test`.`s1` join `test`.`t2`) on((`test`.`t2`.`a` = `test`.`t3`.`a`)) where 1
+select s1.b, t2.a as t2_a, t3.a as t3_a
+from s1 join t2 right join t3 using(a);
+b	t2_a	t3_a
+7	7	7
+5	7	7
+3	7	7
+NULL	NULL	2
+NULL	NULL	3
+explain extended select s1.b, t2.a as t2_a, t3.a as t3_a
+from (s1 join t2) right join t3 using(a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	s1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`s1`.`b` AS `b`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a` from `test`.`t3` left join (`test`.`s1` join `test`.`t2`) on((`test`.`t2`.`a` = `test`.`t3`.`a`)) where 1
+select s1.b, t2.a as t2_a, t3.a as t3_a
+from (s1 join t2) right join t3 using(a);
+b	t2_a	t3_a
+7	7	7
+5	7	7
+3	7	7
+NULL	NULL	2
+NULL	NULL	3
+explain extended select *
+from s1 join t2 natural join t3;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	s1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t2`.`a` AS `a`,`test`.`s1`.`b` AS `b` from `test`.`s1` join `test`.`t2` join `test`.`t3` where (`test`.`t3`.`a` = `test`.`t2`.`a`)
+select *
+from s1 join t2 natural join t3;
+a	b
+7	7
+7	5
+7	3
+explain extended select *
+from s1 join t2 natural left join t3;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	s1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t2`.`a` AS `a`,`test`.`s1`.`b` AS `b` from `test`.`s1` join `test`.`t2` left join `test`.`t3` on((`test`.`t3`.`a` = `test`.`t2`.`a`)) where 1
+select *
+from s1 join t2 natural left join t3;
+a	b
+7	7
+7	5
+7	3
+5	7
+5	5
+5	3
+1	7
+1	5
+1	3
+explain extended select *
+from s1 join t2 natural right join t3;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	s1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t3`.`a` AS `a`,`test`.`s1`.`b` AS `b` from `test`.`t3` left join (`test`.`s1` join `test`.`t2`) on((`test`.`t2`.`a` = `test`.`t3`.`a`)) where 1
+select *
+from s1 join t2 natural right join t3;
+a	b
+7	7
+7	5
+7	3
+2	NULL
+3	NULL
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join t2 join t3;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a` from `test`.`t1` join `test`.`t2` join `test`.`t3`
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join t2 join t3;
+t1_a	t2_a	t3_a
+7	5	2
+5	5	2
+3	5	2
+7	1	2
+5	1	2
+3	1	2
+7	7	2
+5	7	2
+3	7	2
+7	5	7
+5	5	7
+3	5	7
+7	1	7
+5	1	7
+3	1	7
+7	7	7
+5	7	7
+3	7	7
+7	5	3
+5	5	3
+3	5	3
+7	1	3
+5	1	3
+3	1	3
+7	7	3
+5	7	3
+3	7	3
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join t2 join t3
+where t1.a=t2.a and t2.a=t3.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a` from `test`.`t1` join `test`.`t2` join `test`.`t3` where ((`test`.`t2`.`a` = `test`.`t1`.`a`) and (`test`.`t3`.`a` = `test`.`t1`.`a`))
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from t1 join t2 join t3
+where t1.a=t2.a and t2.a=t3.a;
+t1_a	t2_a	t3_a
+7	7	7
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 join t3 join t4 on t3.a=t4.a on t2.a=t3.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`t1` join `test`.`t2` join `test`.`t3` join `test`.`t4` where ((`test`.`t3`.`a` = `test`.`t2`.`a`) and (`test`.`t4`.`a` = `test`.`t2`.`a`))
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 join t3 join t4 on t3.a=t4.a on t2.a=t3.a;
+t1_a	t2_a	t3_a	t4_a
+7	7	7	7
+5	7	7	7
+3	7	7	7
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 left join t3 join t4 on t3.a=t4.a on t2.a=t3.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`t1` join `test`.`t2` left join (`test`.`t3` join `test`.`t4`) on(((`test`.`t3`.`a` = `test`.`t2`.`a`) and (`test`.`t4`.`a` = `test`.`t2`.`a`))) where 1
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 left join t3 join t4 on t3.a=t4.a on t2.a=t3.a;
+t1_a	t2_a	t3_a	t4_a
+7	7	7	7
+5	7	7	7
+3	7	7	7
+7	5	NULL	NULL
+5	5	NULL	NULL
+3	5	NULL	NULL
+7	1	NULL	NULL
+5	1	NULL	NULL
+3	1	NULL	NULL
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 left join t3 left join t4 on t3.a=t4.a on t2.a=t3.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`t1` join `test`.`t2` left join (`test`.`t3` left join `test`.`t4` on((`test`.`t4`.`a` = `test`.`t2`.`a`))) on((`test`.`t3`.`a` = `test`.`t2`.`a`)) where 1
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 left join t3 left join t4 on t3.a=t4.a on t2.a=t3.a;
+t1_a	t2_a	t3_a	t4_a
+7	7	7	7
+5	7	7	7
+3	7	7	7
+7	5	NULL	NULL
+5	5	NULL	NULL
+3	5	NULL	NULL
+7	1	NULL	NULL
+5	1	NULL	NULL
+3	1	NULL	NULL
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 left join t3 right join t4 on t3.a=t4.a on t2.a=t3.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`t1` join `test`.`t2` left join (`test`.`t4` join `test`.`t3`) on(((`test`.`t3`.`a` = `test`.`t2`.`a`) and (`test`.`t4`.`a` = `test`.`t2`.`a`))) where 1
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 left join t3 right join t4 on t3.a=t4.a on t2.a=t3.a;
+t1_a	t2_a	t3_a	t4_a
+7	7	7	7
+5	7	7	7
+3	7	7	7
+7	5	NULL	NULL
+5	5	NULL	NULL
+3	5	NULL	NULL
+7	1	NULL	NULL
+5	1	NULL	NULL
+3	1	NULL	NULL
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 right join t3 join t4 on t3.a=t4.a on t2.a=t3.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`t3` join `test`.`t4` left join (`test`.`t1` join `test`.`t2`) on((`test`.`t2`.`a` = `test`.`t3`.`a`)) where (`test`.`t4`.`a` = `test`.`t3`.`a`)
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 right join t3 join t4 on t3.a=t4.a on t2.a=t3.a;
+t1_a	t2_a	t3_a	t4_a
+7	7	7	7
+5	7	7	7
+3	7	7	7
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 right join t3 left join t4 on t3.a=t4.a on t2.a=t3.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where; Using join buffer (flat, BNL join)
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (incremental, BNL join)
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`t3` left join `test`.`t4` on((`test`.`t4`.`a` = `test`.`t3`.`a`)) left join (`test`.`t1` join `test`.`t2`) on((`test`.`t2`.`a` = `test`.`t3`.`a`)) where 1
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 right join t3 left join t4 on t3.a=t4.a on t2.a=t3.a;
+t1_a	t2_a	t3_a	t4_a
+7	7	7	7
+5	7	7	7
+3	7	7	7
+NULL	NULL	2	NULL
+NULL	NULL	3	NULL
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 right join t3 right join t4 on t3.a=t4.a on t2.a=t3.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (incremental, BNL join)
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`t4` left join `test`.`t3` on((`test`.`t3`.`a` = `test`.`t4`.`a`)) left join (`test`.`t1` join `test`.`t2`) on((`test`.`t2`.`a` = `test`.`t3`.`a`)) where 1
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 right join t3 right join t4 on t3.a=t4.a on t2.a=t3.a;
+t1_a	t2_a	t3_a	t4_a
+7	7	7	7
+5	7	7	7
+3	7	7	7
+NULL	NULL	NULL	4
+NULL	NULL	NULL	9
+NULL	NULL	NULL	5
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 join t3 join t4 on t3.a=t4.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (incremental, BNL join)
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`t1` join `test`.`t2` join `test`.`t3` join `test`.`t4` where (`test`.`t4`.`a` = `test`.`t3`.`a`)
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 join t3 join t4 on t3.a=t4.a;
+t1_a	t2_a	t3_a	t4_a
+7	5	7	7
+5	5	7	7
+3	5	7	7
+7	1	7	7
+5	1	7	7
+3	1	7	7
+7	7	7	7
+5	7	7	7
+3	7	7	7
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 join t3 left join t4 on t3.a=t4.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (incremental, BNL join)
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`t1` join `test`.`t2` join `test`.`t3` left join `test`.`t4` on((`test`.`t4`.`a` = `test`.`t3`.`a`)) where 1
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 join t3 left join t4 on t3.a=t4.a;
+t1_a	t2_a	t3_a	t4_a
+7	5	7	7
+5	5	7	7
+3	5	7	7
+7	1	7	7
+5	1	7	7
+3	1	7	7
+7	7	7	7
+5	7	7	7
+3	7	7	7
+7	5	2	NULL
+5	5	2	NULL
+3	5	2	NULL
+7	1	2	NULL
+5	1	2	NULL
+3	1	2	NULL
+7	7	2	NULL
+5	7	2	NULL
+3	7	2	NULL
+7	5	3	NULL
+5	5	3	NULL
+3	5	3	NULL
+7	1	3	NULL
+5	1	3	NULL
+3	1	3	NULL
+7	7	3	NULL
+5	7	3	NULL
+3	7	3	NULL
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 join t3 right join t4 on t3.a=t4.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (incremental, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`t4` left join (`test`.`t1` join `test`.`t2` join `test`.`t3`) on((`test`.`t3`.`a` = `test`.`t4`.`a`)) where 1
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 join t3 right join t4 on t3.a=t4.a;
+t1_a	t2_a	t3_a	t4_a
+7	5	7	7
+5	5	7	7
+3	5	7	7
+7	1	7	7
+5	1	7	7
+3	1	7	7
+7	7	7	7
+5	7	7	7
+3	7	7	7
+NULL	NULL	NULL	4
+NULL	NULL	NULL	9
+NULL	NULL	NULL	5
+explain extended select s1.b as s1_b, s2.b as s2_b, t3.a as t3_a, t4.a as t4_a
+from s1 join s2 join t3 join t4 using(a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	s1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	s2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (incremental, BNL join)
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`s1`.`b` AS `s1_b`,`test`.`s2`.`b` AS `s2_b`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`s1` join `test`.`s2` join `test`.`t3` join `test`.`t4` where (`test`.`t4`.`a` = `test`.`t3`.`a`)
+select s1.b as s1_b, s2.b as s2_b, t3.a as t3_a, t4.a as t4_a
+from s1 join s2 join t3 join t4 using(a);
+s1_b	s2_b	t3_a	t4_a
+7	5	7	7
+5	5	7	7
+3	5	7	7
+7	1	7	7
+5	1	7	7
+3	1	7	7
+7	7	7	7
+5	7	7	7
+3	7	7	7
+explain extended select s1.b as s1_b, s2.b as s2_b, t3.a as t3_a, t4.a as t4_a
+from s1 join s2 join t3 left join t4 using(a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	s1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	s2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (incremental, BNL join)
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`s1`.`b` AS `s1_b`,`test`.`s2`.`b` AS `s2_b`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`s1` join `test`.`s2` join `test`.`t3` left join `test`.`t4` on((`test`.`t4`.`a` = `test`.`t3`.`a`)) where 1
+select s1.b as s1_b, s2.b as s2_b, t3.a as t3_a, t4.a as t4_a
+from s1 join s2 join t3 left join t4 using(a);
+s1_b	s2_b	t3_a	t4_a
+7	5	7	7
+5	5	7	7
+3	5	7	7
+7	1	7	7
+5	1	7	7
+3	1	7	7
+7	7	7	7
+5	7	7	7
+3	7	7	7
+7	5	2	NULL
+5	5	2	NULL
+3	5	2	NULL
+7	1	2	NULL
+5	1	2	NULL
+3	1	2	NULL
+7	7	2	NULL
+5	7	2	NULL
+3	7	2	NULL
+7	5	3	NULL
+5	5	3	NULL
+3	5	3	NULL
+7	1	3	NULL
+5	1	3	NULL
+3	1	3	NULL
+7	7	3	NULL
+5	7	3	NULL
+3	7	3	NULL
+explain extended select s1.b as s1_b, s2.b as s2_b, t3.a as t3_a, t4.a as t4_a
+from s1 join s2 join t3 right join t4 using(a);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	
+1	SIMPLE	s1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	s2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (incremental, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`s1`.`b` AS `s1_b`,`test`.`s2`.`b` AS `s2_b`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`t4` left join (`test`.`s1` join `test`.`s2` join `test`.`t3`) on((`test`.`t3`.`a` = `test`.`t4`.`a`)) where 1
+select s1.b as s1_b, s2.b as s2_b, t3.a as t3_a, t4.a as t4_a
+from s1 join s2 join t3 right join t4 using(a);
+s1_b	s2_b	t3_a	t4_a
+7	5	7	7
+5	5	7	7
+3	5	7	7
+7	1	7	7
+5	1	7	7
+3	1	7	7
+7	7	7	7
+5	7	7	7
+3	7	7	7
+NULL	NULL	NULL	4
+NULL	NULL	NULL	9
+NULL	NULL	NULL	5
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 join t3 on t2.a=t3.a join t4;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`t1` join `test`.`t2` join `test`.`t3` join `test`.`t4` where (`test`.`t3`.`a` = `test`.`t2`.`a`)
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 join t3 on t2.a=t3.a join t4;
+t1_a	t2_a	t3_a	t4_a
+7	7	7	4
+5	7	7	4
+3	7	7	4
+7	7	7	7
+5	7	7	7
+3	7	7	7
+7	7	7	9
+5	7	7	9
+3	7	7	9
+7	7	7	5
+5	7	7	5
+3	7	7	5
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 left join t3 on t2.a=t3.a join t4;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`t1` join `test`.`t2` left join `test`.`t3` on((`test`.`t3`.`a` = `test`.`t2`.`a`)) join `test`.`t4` where 1
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 left join t3 on t2.a=t3.a join t4;
+t1_a	t2_a	t3_a	t4_a
+7	7	7	4
+5	7	7	4
+3	7	7	4
+7	5	NULL	4
+5	5	NULL	4
+3	5	NULL	4
+7	1	NULL	4
+5	1	NULL	4
+3	1	NULL	4
+7	7	7	7
+5	7	7	7
+3	7	7	7
+7	5	NULL	7
+5	5	NULL	7
+3	5	NULL	7
+7	1	NULL	7
+5	1	NULL	7
+3	1	NULL	7
+7	7	7	9
+5	7	7	9
+3	7	7	9
+7	5	NULL	9
+5	5	NULL	9
+3	5	NULL	9
+7	1	NULL	9
+5	1	NULL	9
+3	1	NULL	9
+7	7	7	5
+5	7	7	5
+3	7	7	5
+7	5	NULL	5
+5	5	NULL	5
+3	5	NULL	5
+7	1	NULL	5
+5	1	NULL	5
+3	1	NULL	5
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 right join t3 on t2.a=t3.a join t4;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`t3` left join (`test`.`t1` join `test`.`t2`) on((`test`.`t2`.`a` = `test`.`t3`.`a`)) join `test`.`t4` where 1
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 right join t3 on t2.a=t3.a join t4;
+t1_a	t2_a	t3_a	t4_a
+7	7	7	4
+5	7	7	4
+3	7	7	4
+7	7	7	7
+5	7	7	7
+3	7	7	7
+7	7	7	9
+5	7	7	9
+3	7	7	9
+7	7	7	5
+5	7	7	5
+3	7	7	5
+NULL	NULL	2	4
+NULL	NULL	3	4
+NULL	NULL	2	7
+NULL	NULL	3	7
+NULL	NULL	2	9
+NULL	NULL	3	9
+NULL	NULL	2	5
+NULL	NULL	3	5
+explain extended select s1.b as s1_b, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from s1 join t2 join t3 using(a) join t4;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	s1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`s1`.`b` AS `s1_b`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`s1` join `test`.`t2` join `test`.`t3` join `test`.`t4` where (`test`.`t3`.`a` = `test`.`t2`.`a`)
+select s1.b as s1_b, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from s1 join t2 join t3 using(a) join t4;
+s1_b	t2_a	t3_a	t4_a
+7	7	7	4
+5	7	7	4
+3	7	7	4
+7	7	7	7
+5	7	7	7
+3	7	7	7
+7	7	7	9
+5	7	7	9
+3	7	7	9
+7	7	7	5
+5	7	7	5
+3	7	7	5
+explain extended select s1.b as s1_b, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from s1 join t2 left join t3 using(a) join t4;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	s1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`s1`.`b` AS `s1_b`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`s1` join `test`.`t2` left join `test`.`t3` on((`test`.`t3`.`a` = `test`.`t2`.`a`)) join `test`.`t4` where 1
+select s1.b as s1_b, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from s1 join t2 left join t3 using(a) join t4;
+s1_b	t2_a	t3_a	t4_a
+7	7	7	4
+5	7	7	4
+3	7	7	4
+7	5	NULL	4
+5	5	NULL	4
+3	5	NULL	4
+7	1	NULL	4
+5	1	NULL	4
+3	1	NULL	4
+7	7	7	7
+5	7	7	7
+3	7	7	7
+7	5	NULL	7
+5	5	NULL	7
+3	5	NULL	7
+7	1	NULL	7
+5	1	NULL	7
+3	1	NULL	7
+7	7	7	9
+5	7	7	9
+3	7	7	9
+7	5	NULL	9
+5	5	NULL	9
+3	5	NULL	9
+7	1	NULL	9
+5	1	NULL	9
+3	1	NULL	9
+7	7	7	5
+5	7	7	5
+3	7	7	5
+7	5	NULL	5
+5	5	NULL	5
+3	5	NULL	5
+7	1	NULL	5
+5	1	NULL	5
+3	1	NULL	5
+explain extended select s1.b as s1_b, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from s1 join t2 right join t3 using(a) join t4;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	s1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`s1`.`b` AS `s1_b`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`t3` left join (`test`.`s1` join `test`.`t2`) on((`test`.`t2`.`a` = `test`.`t3`.`a`)) join `test`.`t4` where 1
+select s1.b as s1_b, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from s1 join t2 right join t3 using(a) join t4;
+s1_b	t2_a	t3_a	t4_a
+7	7	7	4
+5	7	7	4
+3	7	7	4
+7	7	7	7
+5	7	7	7
+3	7	7	7
+7	7	7	9
+5	7	7	9
+3	7	7	9
+7	7	7	5
+5	7	7	5
+3	7	7	5
+NULL	NULL	2	4
+NULL	NULL	3	4
+NULL	NULL	2	7
+NULL	NULL	3	7
+NULL	NULL	2	9
+NULL	NULL	3	9
+NULL	NULL	2	5
+NULL	NULL	3	5
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 on t1.a=t2.a join t3 join t4 on t3.a=t4.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (incremental, BNL join)
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`t1` join `test`.`t2` join `test`.`t3` join `test`.`t4` where ((`test`.`t4`.`a` = `test`.`t3`.`a`) and (`test`.`t2`.`a` = `test`.`t1`.`a`))
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 on t1.a=t2.a join t3 join t4 on t3.a=t4.a;
+t1_a	t2_a	t3_a	t4_a
+5	5	7	7
+7	7	7	7
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 on t1.a=t2.a join t3 left join t4 on t3.a=t4.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (incremental, BNL join)
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`t1` join `test`.`t2` join `test`.`t3` left join `test`.`t4` on((`test`.`t4`.`a` = `test`.`t3`.`a`)) where (`test`.`t2`.`a` = `test`.`t1`.`a`)
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 on t1.a=t2.a join t3 left join t4 on t3.a=t4.a;
+t1_a	t2_a	t3_a	t4_a
+5	5	7	7
+7	7	7	7
+5	5	2	NULL
+7	7	2	NULL
+5	5	3	NULL
+7	7	3	NULL
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 on t1.a=t2.a join t3 right join t4 on t3.a=t4.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`t4` left join (`test`.`t1` join `test`.`t2` join `test`.`t3`) on(((`test`.`t3`.`a` = `test`.`t4`.`a`) and (`test`.`t2`.`a` = `test`.`t1`.`a`))) where 1
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 on t1.a=t2.a join t3 right join t4 on t3.a=t4.a;
+t1_a	t2_a	t3_a	t4_a
+5	5	7	7
+7	7	7	7
+NULL	NULL	NULL	4
+NULL	NULL	NULL	9
+NULL	NULL	NULL	5
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 left join t2 on t1.a=t2.a join t3 join t4 on t3.a=t4.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (incremental, BNL join)
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`t1` left join `test`.`t2` on((`test`.`t2`.`a` = `test`.`t1`.`a`)) join `test`.`t3` join `test`.`t4` where (`test`.`t4`.`a` = `test`.`t3`.`a`)
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 left join t2 on t1.a=t2.a join t3 join t4 on t3.a=t4.a;
+t1_a	t2_a	t3_a	t4_a
+5	5	7	7
+7	7	7	7
+3	NULL	7	7
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 left join t2 on t1.a=t2.a join t3 left join t4 on t3.a=t4.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (incremental, BNL join)
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`t1` left join `test`.`t2` on((`test`.`t2`.`a` = `test`.`t1`.`a`)) join `test`.`t3` left join `test`.`t4` on((`test`.`t4`.`a` = `test`.`t3`.`a`)) where 1
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 left join t2 on t1.a=t2.a join t3 left join t4 on t3.a=t4.a;
+t1_a	t2_a	t3_a	t4_a
+5	5	7	7
+7	7	7	7
+3	NULL	7	7
+5	5	2	NULL
+7	7	2	NULL
+3	NULL	2	NULL
+5	5	3	NULL
+7	7	3	NULL
+3	NULL	3	NULL
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 left join t2 on t1.a=t2.a join t3 right join t4 on t3.a=t4.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`t4` left join (`test`.`t1` left join `test`.`t2` on((`test`.`t2`.`a` = `test`.`t1`.`a`)) join `test`.`t3`) on((`test`.`t3`.`a` = `test`.`t4`.`a`)) where 1
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 left join t2 on t1.a=t2.a join t3 right join t4 on t3.a=t4.a;
+t1_a	t2_a	t3_a	t4_a
+5	5	7	7
+7	7	7	7
+3	NULL	7	7
+NULL	NULL	NULL	4
+NULL	NULL	NULL	9
+NULL	NULL	NULL	5
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 right join t2 on t1.a=t2.a join t3 join t4 on t3.a=t4.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (incremental, BNL join)
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`t2` left join `test`.`t1` on((`test`.`t1`.`a` = `test`.`t2`.`a`)) join `test`.`t3` join `test`.`t4` where (`test`.`t4`.`a` = `test`.`t3`.`a`)
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 right join t2 on t1.a=t2.a join t3 join t4 on t3.a=t4.a;
+t1_a	t2_a	t3_a	t4_a
+7	7	7	7
+5	5	7	7
+NULL	1	7	7
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 right join t2 on t1.a=t2.a join t3 left join t4 on t3.a=t4.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (incremental, BNL join)
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`t2` left join `test`.`t1` on((`test`.`t1`.`a` = `test`.`t2`.`a`)) join `test`.`t3` left join `test`.`t4` on((`test`.`t4`.`a` = `test`.`t3`.`a`)) where 1
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 right join t2 on t1.a=t2.a join t3 left join t4 on t3.a=t4.a;
+t1_a	t2_a	t3_a	t4_a
+7	7	7	7
+5	5	7	7
+NULL	1	7	7
+7	7	2	NULL
+5	5	2	NULL
+NULL	1	2	NULL
+7	7	3	NULL
+5	5	3	NULL
+NULL	1	3	NULL
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 right join t2 on t1.a=t2.a join t3 right join t4 on t3.a=t4.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`t4` left join (`test`.`t2` left join `test`.`t1` on((`test`.`t1`.`a` = `test`.`t2`.`a`)) join `test`.`t3`) on((`test`.`t3`.`a` = `test`.`t4`.`a`)) where 1
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 right join t2 on t1.a=t2.a join t3 right join t4 on t3.a=t4.a;
+t1_a	t2_a	t3_a	t4_a
+7	7	7	7
+5	5	7	7
+NULL	1	7	7
+NULL	NULL	NULL	4
+NULL	NULL	NULL	9
+NULL	NULL	NULL	5
+explain extended select s1.b as s1_b, t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from s1 join t1 left join t2 on s1.b=t2.a join t3 join t4 on t4.a=s1.b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	s1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (incremental, BNL join)
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`s1`.`b` AS `s1_b`,`test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`s1` join `test`.`t1` left join `test`.`t2` on((`test`.`t2`.`a` = `test`.`s1`.`b`)) join `test`.`t3` join `test`.`t4` where (`test`.`t4`.`a` = `test`.`s1`.`b`)
+select s1.b as s1_b, t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from s1 join t1 left join t2 on s1.b=t2.a join t3 join t4 on t4.a=s1.b;
+s1_b	t1_a	t2_a	t3_a	t4_a
+7	7	7	2	7
+7	5	7	2	7
+7	3	7	2	7
+7	7	7	7	7
+7	5	7	7	7
+7	3	7	7	7
+7	7	7	3	7
+7	5	7	3	7
+7	3	7	3	7
+5	7	5	2	5
+5	5	5	2	5
+5	3	5	2	5
+5	7	5	7	5
+5	5	5	7	5
+5	3	5	7	5
+5	7	5	3	5
+5	5	5	3	5
+5	3	5	3	5
+explain extended select s1.b as s1_b, t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from s1 join t1 left join t2 on s1.b=t2.a join t3 left join t4 on t4.a=s1.b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	s1	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (incremental, BNL join)
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`s1`.`b` AS `s1_b`,`test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`s1` join `test`.`t1` left join `test`.`t2` on((`test`.`t2`.`a` = `test`.`s1`.`b`)) join `test`.`t3` left join `test`.`t4` on((`test`.`t4`.`a` = `test`.`s1`.`b`)) where 1
+select s1.b as s1_b, t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from s1 join t1 left join t2 on s1.b=t2.a join t3 left join t4 on t4.a=s1.b;
+s1_b	t1_a	t2_a	t3_a	t4_a
+7	7	7	2	7
+7	5	7	2	7
+7	3	7	2	7
+7	7	7	7	7
+7	5	7	7	7
+7	3	7	7	7
+7	7	7	3	7
+7	5	7	3	7
+7	3	7	3	7
+5	7	5	2	5
+5	5	5	2	5
+5	3	5	2	5
+5	7	5	7	5
+5	5	5	7	5
+5	3	5	7	5
+5	7	5	3	5
+5	5	5	3	5
+5	3	5	3	5
+3	7	NULL	2	NULL
+3	5	NULL	2	NULL
+3	3	NULL	2	NULL
+3	7	NULL	7	NULL
+3	5	NULL	7	NULL
+3	3	NULL	7	NULL
+3	7	NULL	3	NULL
+3	5	NULL	3	NULL
+3	3	NULL	3	NULL
+explain extended select s1.b as s1_b, t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from s1 join t1 left join t2 on s1.b=t2.a join t3 right join t4 on t4.a=s1.b;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	
+1	SIMPLE	s1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (incremental, BNL join)
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`s1`.`b` AS `s1_b`,`test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`t4` left join (`test`.`s1` join `test`.`t1` left join `test`.`t2` on((`test`.`t2`.`a` = `test`.`t4`.`a`)) join `test`.`t3`) on((`test`.`s1`.`b` = `test`.`t4`.`a`)) where 1
+select s1.b as s1_b, t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from s1 join t1 left join t2 on s1.b=t2.a join t3 right join t4 on t4.a=s1.b;
+s1_b	t1_a	t2_a	t3_a	t4_a
+5	7	5	2	5
+5	5	5	2	5
+5	3	5	2	5
+7	7	7	2	7
+7	5	7	2	7
+7	3	7	2	7
+5	7	5	7	5
+5	5	5	7	5
+5	3	5	7	5
+7	7	7	7	7
+7	5	7	7	7
+7	3	7	7	7
+5	7	5	3	5
+5	5	5	3	5
+5	3	5	3	5
+7	7	7	3	7
+7	5	7	3	7
+7	3	7	3	7
+NULL	NULL	NULL	NULL	4
+NULL	NULL	NULL	NULL	9
+explain extended select s1.b as s1_b, s2.b as s2_b, t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from s1 join s2 on s1.b=s2.b join t1 right join t2 on t1.a=t2.a join t3;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	s1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	s2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`s1`.`b` AS `s1_b`,`test`.`s2`.`b` AS `s2_b`,`test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a` from `test`.`t2` left join (`test`.`s1` join `test`.`s2` join `test`.`t1`) on(((`test`.`t1`.`a` = `test`.`t2`.`a`) and (`test`.`s2`.`b` = `test`.`s1`.`b`))) join `test`.`t3` where 1
+select s1.b as s1_b, s2.b as s2_b, t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from s1 join s2 on s1.b=s2.b join t1 right join t2 on t1.a=t2.a join t3;
+s1_b	s2_b	t1_a	t2_a	t3_a
+5	5	7	7	2
+7	7	7	7	2
+5	5	5	5	2
+7	7	5	5	2
+5	5	7	7	7
+7	7	7	7	7
+5	5	5	5	7
+7	7	5	5	7
+5	5	7	7	3
+7	7	7	7	3
+5	5	5	5	3
+7	7	5	5	3
+NULL	NULL	NULL	1	2
+NULL	NULL	NULL	1	7
+NULL	NULL	NULL	1	3
+explain extended select s1.b as s1_b, s2.b as s2_b, t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from s1 left join s2 on s1.b=s2.b join t1 right join t2 on t1.a=t2.a join t3;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	s1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	s2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`s1`.`b` AS `s1_b`,`test`.`s2`.`b` AS `s2_b`,`test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a` from `test`.`t2` left join (`test`.`s1` left join `test`.`s2` on((`test`.`s2`.`b` = `test`.`s1`.`b`)) join `test`.`t1`) on((`test`.`t1`.`a` = `test`.`t2`.`a`)) join `test`.`t3` where 1
+select s1.b as s1_b, s2.b as s2_b, t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from s1 left join s2 on s1.b=s2.b join t1 right join t2 on t1.a=t2.a join t3;
+s1_b	s2_b	t1_a	t2_a	t3_a
+5	5	7	7	2
+7	7	7	7	2
+3	NULL	7	7	2
+5	5	5	5	2
+7	7	5	5	2
+3	NULL	5	5	2
+5	5	7	7	7
+7	7	7	7	7
+3	NULL	7	7	7
+5	5	5	5	7
+7	7	5	5	7
+3	NULL	5	5	7
+5	5	7	7	3
+7	7	7	7	3
+3	NULL	7	7	3
+5	5	5	5	3
+7	7	5	5	3
+3	NULL	5	5	3
+NULL	NULL	NULL	1	2
+NULL	NULL	NULL	1	7
+NULL	NULL	NULL	1	3
+explain extended select s1.b as s1_b, s2.b as s2_b, t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from s1 right join s2 on s1.b=s2.b join t1 right join t2 on t1.a=t2.a join t3;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	
+1	SIMPLE	s2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (flat, BNL join)
+1	SIMPLE	s1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`s1`.`b` AS `s1_b`,`test`.`s2`.`b` AS `s2_b`,`test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a` from `test`.`t2` left join (`test`.`s2` left join `test`.`s1` on((`test`.`s1`.`b` = `test`.`s2`.`b`)) join `test`.`t1`) on((`test`.`t1`.`a` = `test`.`t2`.`a`)) join `test`.`t3` where 1
+select s1.b as s1_b, s2.b as s2_b, t1.a as t1_a, t2.a as t2_a, t3.a as t3_a
+from s1 right join s2 on s1.b=s2.b join t1 right join t2 on t1.a=t2.a join t3;
+s1_b	s2_b	t1_a	t2_a	t3_a
+7	7	7	7	2
+5	5	7	7	2
+NULL	1	7	7	2
+7	7	5	5	2
+5	5	5	5	2
+NULL	1	5	5	2
+7	7	7	7	7
+5	5	7	7	7
+NULL	1	7	7	7
+7	7	5	5	7
+5	5	5	5	7
+NULL	1	5	5	7
+7	7	7	7	3
+5	5	7	7	3
+NULL	1	7	7	3
+7	7	5	5	3
+5	5	5	5	3
+NULL	1	5	5	3
+NULL	NULL	NULL	1	2
+NULL	NULL	NULL	1	7
+NULL	NULL	NULL	1	3
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 right join t3 right join t4 on t3.a=t4.a on t2.a=t3.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (incremental, BNL join)
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`t4` left join `test`.`t3` on((`test`.`t3`.`a` = `test`.`t4`.`a`)) left join (`test`.`t1` join `test`.`t2`) on((`test`.`t2`.`a` = `test`.`t3`.`a`)) where 1
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from t1 join t2 right join t3 right join t4 on t3.a=t4.a on t2.a=t3.a;
+t1_a	t2_a	t3_a	t4_a
+7	7	7	7
+5	7	7	7
+3	7	7	7
+NULL	NULL	NULL	4
+NULL	NULL	NULL	9
+NULL	NULL	NULL	5
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from (t1 join t2) right join t3 right join t4 on t3.a=t4.a on t2.a=t3.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (incremental, BNL join)
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`t4` left join `test`.`t3` on((`test`.`t3`.`a` = `test`.`t4`.`a`)) left join (`test`.`t1` join `test`.`t2`) on((`test`.`t2`.`a` = `test`.`t3`.`a`)) where 1
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from (t1 join t2) right join t3 right join t4 on t3.a=t4.a on t2.a=t3.a;
+t1_a	t2_a	t3_a	t4_a
+7	7	7	7
+5	7	7	7
+3	7	7	7
+NULL	NULL	NULL	4
+NULL	NULL	NULL	9
+NULL	NULL	NULL	5
+explain extended select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from (t1, t2) right join t3 right join t4 on t3.a=t4.a on t2.a=t3.a;
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
+1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	4	100.00	
+1	SIMPLE	t3	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (flat, BNL join)
+1	SIMPLE	t1	ALL	NULL	NULL	NULL	NULL	3	100.00	Using join buffer (incremental, BNL join)
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	3	100.00	Using where; Using join buffer (incremental, BNL join)
+Warnings:
+Note	1003	select `test`.`t1`.`a` AS `t1_a`,`test`.`t2`.`a` AS `t2_a`,`test`.`t3`.`a` AS `t3_a`,`test`.`t4`.`a` AS `t4_a` from `test`.`t4` left join `test`.`t3` on((`test`.`t3`.`a` = `test`.`t4`.`a`)) left join (`test`.`t1` join `test`.`t2`) on((`test`.`t2`.`a` = `test`.`t3`.`a`)) where 1
+select t1.a as t1_a, t2.a as t2_a, t3.a as t3_a, t4.a as t4_a
+from (t1, t2) right join t3 right join t4 on t3.a=t4.a on t2.a=t3.a;
+t1_a	t2_a	t3_a	t4_a
+7	7	7	7
+5	7	7	7
+3	7	7	7
+NULL	NULL	NULL	4
+NULL	NULL	NULL	9
+NULL	NULL	NULL	5
+drop table t1,t2,t3,t4,s1,s2;
+#
 # End of MariaDB 5.5 tests
 #
diff --git a/mysql-test/r/join_outer_innodb.result b/mysql-test/r/join_outer_innodb.result
index 336fb5ee6b6..5c14b3c2551 100644
--- a/mysql-test/r/join_outer_innodb.result
+++ b/mysql-test/r/join_outer_innodb.result
@@ -486,7 +486,7 @@ Note	1051	Unknown table 't2'
 Note	1051	Unknown table 't3'
 create table t2(a int,unique key (a)) engine=innodb;
 create table t3(b int) engine=innodb;
-create table t1(a int,b int)engine=innodb;
+create table t1(c int,b int)engine=innodb;
 set @mdev4270_opl= @@optimizer_prune_level;
 set @mdev4270_osd= @@optimizer_search_depth;
 set optimizer_prune_level=0;
-- 
cgit v1.2.1


From 1a79a29c87eca4dffa393796b7dc4deb62eb0865 Mon Sep 17 00:00:00 2001
From: Oleksandr Byelkin <sanja@mariadb.com>
Date: Fri, 12 Jul 2019 10:03:33 +0200
Subject: MDEV-17042: prepared statement does not return error with SQL_MODE
 STRICT_TRANS_TABLES.

Use for parameters value conversion functions which issue warnings.
---
 mysql-test/r/ps.result        | 63 ++++++++++++++++++++++++++++++++++++++++++
 mysql-test/r/ps_innodb.result | 64 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 127 insertions(+)
 create mode 100644 mysql-test/r/ps_innodb.result

(limited to 'mysql-test/r')

diff --git a/mysql-test/r/ps.result b/mysql-test/r/ps.result
index 209d3d85108..1e909c8a53c 100644
--- a/mysql-test/r/ps.result
+++ b/mysql-test/r/ps.result
@@ -4334,4 +4334,67 @@ LINE1	1
 LINE2	2
 LINE3	3
 drop table t1;
+#
+# MDEV-17042: prepared statement does not return error with
+# SQL_MODE STRICT_TRANS_TABLES. (Part 1)
+#
+set @save_sql_mode=@@sql_mode;
+set sql_mode='STRICT_ALL_TABLES';
+CREATE TABLE t1 (id int, count int);
+insert into t1 values (1,1),(0,2);
+update t1 set count = count + 1 where id = '1bad';
+ERROR 22007: Truncated incorrect DOUBLE value: '1bad'
+prepare stmt from "update t1 set count = count + 1 where id = '1bad'";
+execute stmt;
+ERROR 22007: Truncated incorrect DOUBLE value: '1bad'
+deallocate prepare stmt;
+prepare stmt from 'update t1 set count = count + 1 where id = ?';
+set @a = '1bad';
+execute stmt using @a;
+ERROR 22007: Truncated incorrect DOUBLE value: '1bad'
+deallocate prepare stmt;
+drop table t1;
+CREATE TABLE t1 (id decimal(10,5), count int);
+insert into t1 values (1,1),(0,2);
+update t1 set count = count + 1 where id = '1bad';
+ERROR 22007: Truncated incorrect DOUBLE value: '1bad'
+prepare stmt from "update t1 set count = count + 1 where id = '1bad'";
+execute stmt;
+ERROR 22007: Truncated incorrect DOUBLE value: '1bad'
+deallocate prepare stmt;
+prepare stmt from 'update t1 set count = count + 1 where id = ?';
+set @a = '1bad';
+execute stmt using @a;
+ERROR 22007: Truncated incorrect DOUBLE value: '1bad'
+deallocate prepare stmt;
+drop table t1;
+CREATE TABLE t1 (id double, count int);
+insert into t1 values (1,1),(0,2);
+update t1 set count = count + 1 where id = '1bad';
+ERROR 22007: Truncated incorrect DOUBLE value: '1bad'
+prepare stmt from "update t1 set count = count + 1 where id = '1bad'";
+execute stmt;
+ERROR 22007: Truncated incorrect DOUBLE value: '1bad'
+deallocate prepare stmt;
+prepare stmt from 'update t1 set count = count + 1 where id = ?';
+set @a = '1bad';
+execute stmt using @a;
+ERROR 22007: Truncated incorrect DOUBLE value: '1bad'
+deallocate prepare stmt;
+drop table t1;
+CREATE TABLE t1 (id date, count int);
+insert into t1 values ("2019-06-11",1),("2019-06-12",2);
+update t1 set count = count + 1 where id = '1bad';
+ERROR 22007: Incorrect datetime value: '1bad'
+prepare stmt from "update t1 set count = count + 1 where id = '1bad'";
+execute stmt;
+ERROR 22007: Incorrect datetime value: '1bad'
+deallocate prepare stmt;
+prepare stmt from 'update t1 set count = count + 1 where id = ?';
+set @a = '1bad';
+execute stmt using @a;
+ERROR 22007: Incorrect datetime value: '1bad'
+deallocate prepare stmt;
+drop table t1;
+set sql_mode=@save_sql_mode;
 # End of 5.5 tests
diff --git a/mysql-test/r/ps_innodb.result b/mysql-test/r/ps_innodb.result
new file mode 100644
index 00000000000..c55f5e49001
--- /dev/null
+++ b/mysql-test/r/ps_innodb.result
@@ -0,0 +1,64 @@
+#
+# MDEV-17042: prepared statement does not return error with
+# SQL_MODE STRICT_TRANS_TABLES. (Part 2)
+#
+set @save_sql_mode=@@sql_mode;
+set sql_mode='STRICT_TRANS_TABLES';
+CREATE TABLE t1 (id int, count int) engine=innodb;
+insert into t1 values (1,1),(0,2);
+update t1 set count = count + 1 where id = '1bad';
+ERROR 22007: Truncated incorrect DOUBLE value: '1bad'
+prepare stmt from "update t1 set count = count + 1 where id = '1bad'";
+execute stmt;
+ERROR 22007: Truncated incorrect DOUBLE value: '1bad'
+deallocate prepare stmt;
+prepare stmt from 'update t1 set count = count + 1 where id = ?';
+set @a = '1bad';
+execute stmt using @a;
+ERROR 22007: Truncated incorrect DOUBLE value: '1bad'
+deallocate prepare stmt;
+drop table t1;
+CREATE TABLE t1 (id decimal(10,5), count int) engine=innodb;
+insert into t1 values (1,1),(0,2);
+update t1 set count = count + 1 where id = '1bad';
+ERROR 22007: Truncated incorrect DOUBLE value: '1bad'
+prepare stmt from "update t1 set count = count + 1 where id = '1bad'";
+execute stmt;
+ERROR 22007: Truncated incorrect DOUBLE value: '1bad'
+deallocate prepare stmt;
+prepare stmt from 'update t1 set count = count + 1 where id = ?';
+set @a = '1bad';
+execute stmt using @a;
+ERROR 22007: Truncated incorrect DOUBLE value: '1bad'
+deallocate prepare stmt;
+drop table t1;
+CREATE TABLE t1 (id double, count int) engine=innodb;
+insert into t1 values (1,1),(0,2);
+update t1 set count = count + 1 where id = '1bad';
+ERROR 22007: Truncated incorrect DOUBLE value: '1bad'
+prepare stmt from "update t1 set count = count + 1 where id = '1bad'";
+execute stmt;
+ERROR 22007: Truncated incorrect DOUBLE value: '1bad'
+deallocate prepare stmt;
+prepare stmt from 'update t1 set count = count + 1 where id = ?';
+set @a = '1bad';
+execute stmt using @a;
+ERROR 22007: Truncated incorrect DOUBLE value: '1bad'
+deallocate prepare stmt;
+drop table t1;
+CREATE TABLE t1 (id date, count int) engine=innodb;
+insert into t1 values ("2019-06-11",1),("2019-06-12",2);
+update t1 set count = count + 1 where id = '1bad';
+ERROR 22007: Incorrect datetime value: '1bad'
+prepare stmt from "update t1 set count = count + 1 where id = '1bad'";
+execute stmt;
+ERROR 22007: Incorrect datetime value: '1bad'
+deallocate prepare stmt;
+prepare stmt from 'update t1 set count = count + 1 where id = ?';
+set @a = '1bad';
+execute stmt using @a;
+ERROR 22007: Incorrect datetime value: '1bad'
+deallocate prepare stmt;
+drop table t1;
+set sql_mode=@save_sql_mode;
+# End of 5.5 tests
-- 
cgit v1.2.1


From cc86a0bd11a436dfe4df0622481c571f83b1680a Mon Sep 17 00:00:00 2001
From: Oleksandr Byelkin <sanja@mariadb.com>
Date: Thu, 11 Jul 2019 14:50:50 +0200
Subject: MDEV-15572: view.test, server crash with --big-tables=1

Check that table is really opened before cleanup using handler.
---
 mysql-test/r/view.result | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'mysql-test/r')

diff --git a/mysql-test/r/view.result b/mysql-test/r/view.result
index 7fc3c48c3a0..98692a0b8ee 100644
--- a/mysql-test/r/view.result
+++ b/mysql-test/r/view.result
@@ -5732,6 +5732,21 @@ t37, t38, t39, t40, t41, t42, t43, t44, t45,
 t46, t47, t48, t49, t50, t51, t52, t53, t54,
 t55, t56, t57, t58, t59,t60;
 drop view v60;
+#
+# MDEV-15572: view.test, server crash with --big-tables=1
+#
+set @save_big_tables=@@big_tables;
+set big_tables=ON;
+CREATE TABLE t1 ( f1 int , f2 int , f3 int , f4 int);
+CREATE TABLE t2 ( f1 int , f2 int , f3 int , f4 int);
+CREATE VIEW v1 AS
+SELECT t2.f1, t1.f2, t2.f3, t2.f4 FROM (t1 JOIN t2);
+REPLACE INTO v1 (f1, f2, f3, f4)
+SELECT f1, f2, f3, f4 FROM t1;
+ERROR HY000: Can not modify more than one base table through a join view 'test.v1'
+drop view v1;
+drop table t1, t2;
+set big_tables=@save_big_tables;
 # -----------------------------------------------------------------
 # -- End of 5.5 tests.
 # -----------------------------------------------------------------
-- 
cgit v1.2.1


From f90040fd9ccb99cb4541d181a7052c37dc38decb Mon Sep 17 00:00:00 2001
From: Oleksandr Byelkin <sanja@mariadb.com>
Date: Wed, 17 Jul 2019 12:31:45 +0200
Subject: MDEV-19429: Wrong query result with EXISTS and LIMIT 0

Check EXISTS LIMIT before rewriting.
---
 mysql-test/r/derived_view.result          |  2 +-
 mysql-test/r/subselect.result             | 41 +++++++++++++++++++++++++++----
 mysql-test/r/subselect_mat.result         |  2 +-
 mysql-test/r/subselect_no_mat.result      | 41 +++++++++++++++++++++++++++----
 mysql-test/r/subselect_no_opts.result     | 41 +++++++++++++++++++++++++++----
 mysql-test/r/subselect_no_scache.result   | 41 +++++++++++++++++++++++++++----
 mysql-test/r/subselect_no_semijoin.result | 41 +++++++++++++++++++++++++++----
 mysql-test/r/subselect_sj_mat.result      |  2 +-
 mysql-test/r/view_alias.result            | 10 ++++----
 9 files changed, 188 insertions(+), 33 deletions(-)

(limited to 'mysql-test/r')

diff --git a/mysql-test/r/derived_view.result b/mysql-test/r/derived_view.result
index 412786c48e2..73a9306c37b 100644
--- a/mysql-test/r/derived_view.result
+++ b/mysql-test/r/derived_view.result
@@ -1288,7 +1288,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 3	DEPENDENT SUBQUERY	t3	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 Warnings:
 Note	1276	Field or reference 't.a' of SELECT #3 was resolved in SELECT #1
-Note	1003	select `test`.`t1`.`a` AS `a` from `test`.`t1` where <expr_cache><`test`.`t1`.`a`>(exists(select 28 from `test`.`t3` where ('j' < `test`.`t1`.`a`)))
+Note	1003	select `test`.`t1`.`a` AS `a` from `test`.`t1` where <expr_cache><`test`.`t1`.`a`>(exists(select 28 from `test`.`t3` where ('j' < `test`.`t1`.`a`) limit 1))
 SELECT * FROM (SELECT * FROM t1) AS t
 WHERE EXISTS (SELECT t2.a FROM t3 RIGHT JOIN t2 ON (t3.a = t2.a)
 WHERE t2.b < t.a);
diff --git a/mysql-test/r/subselect.result b/mysql-test/r/subselect.result
index 2999f4cfc8f..0aa8a8192f0 100644
--- a/mysql-test/r/subselect.result
+++ b/mysql-test/r/subselect.result
@@ -341,7 +341,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 2	DEPENDENT SUBQUERY	t7	eq_ref	PRIMARY	PRIMARY	4	test.t6.clinic_uq	1	100.00	Using index
 Warnings:
 Note	1276	Field or reference 'test.t6.clinic_uq' of SELECT #2 was resolved in SELECT #1
-Note	1003	select `test`.`t6`.`patient_uq` AS `patient_uq`,`test`.`t6`.`clinic_uq` AS `clinic_uq` from `test`.`t6` where <expr_cache><`test`.`t6`.`clinic_uq`>(exists(select 1 from `test`.`t7` where (`test`.`t7`.`uq` = `test`.`t6`.`clinic_uq`)))
+Note	1003	select `test`.`t6`.`patient_uq` AS `patient_uq`,`test`.`t6`.`clinic_uq` AS `clinic_uq` from `test`.`t6` where <expr_cache><`test`.`t6`.`clinic_uq`>(exists(select 1 from `test`.`t7` where (`test`.`t7`.`uq` = `test`.`t6`.`clinic_uq`) limit 1))
 select * from t1 where a= (select a from t2,t4 where t2.b=t4.b);
 ERROR 23000: Column 'a' in field list is ambiguous
 drop table t1,t2,t3;
@@ -1887,7 +1887,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 2	DEPENDENT SUBQUERY	t1	eq_ref	PRIMARY	PRIMARY	4	test.tt.id	1	100.00	Using where; Using index
 Warnings:
 Note	1276	Field or reference 'test.tt.id' of SELECT #2 was resolved in SELECT #1
-Note	1003	select `test`.`tt`.`id` AS `id`,`test`.`tt`.`text` AS `text` from `test`.`t1` `tt` where (not(<expr_cache><`test`.`tt`.`id`>(exists(select `test`.`t1`.`id` from `test`.`t1` where ((`test`.`t1`.`id` < 8) and (`test`.`t1`.`id` = `test`.`tt`.`id`)) having (`test`.`t1`.`id` is not null)))))
+Note	1003	select `test`.`tt`.`id` AS `id`,`test`.`tt`.`text` AS `text` from `test`.`t1` `tt` where (not(<expr_cache><`test`.`tt`.`id`>(exists(select `test`.`t1`.`id` from `test`.`t1` where ((`test`.`t1`.`id` < 8) and (`test`.`t1`.`id` = `test`.`tt`.`id`)) having (`test`.`t1`.`id` is not null) limit 1))))
 insert into t1 (id, text) values (1000, 'text1000'), (1001, 'text1001');
 create table t2 (id int not null, text varchar(20) not null default '', primary key (id));
 insert into t2 (id, text) values (1, 'text1'), (2, 'text2'), (3, 'text3'), (4, 'text4'), (5, 'text5'), (6, 'text6'), (7, 'text7'), (8, 'text8'), (9, 'text9'), (10, 'text10'), (11, 'text1'), (12, 'text2'), (13, 'text3'), (14, 'text4'), (15, 'text5'), (16, 'text6'), (17, 'text7'), (18, 'text8'), (19, 'text9'), (20, 'text10'),(21, 'text1'), (22, 'text2'), (23, 'text3'), (24, 'text4'), (25, 'text5'), (26, 'text6'), (27, 'text7'), (28, 'text8'), (29, 'text9'), (30, 'text10'), (31, 'text1'), (32, 'text2'), (33, 'text3'), (34, 'text4'), (35, 'text5'), (36, 'text6'), (37, 'text7'), (38, 'text8'), (39, 'text9'), (40, 'text10'), (41, 'text1'), (42, 'text2'), (43, 'text3'), (44, 'text4'), (45, 'text5'), (46, 'text6'), (47, 'text7'), (48, 'text8'), (49, 'text9'), (50, 'text10');
@@ -2423,7 +2423,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 2	DEPENDENT SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 Warnings:
 Note	1276	Field or reference 'test.up.a' of SELECT #2 was resolved in SELECT #1
-Note	1003	select `test`.`up`.`a` AS `a`,`test`.`up`.`b` AS `b` from `test`.`t1` `up` where <expr_cache><`test`.`up`.`a`>(exists(select 1 from `test`.`t1` where (`test`.`t1`.`a` = `test`.`up`.`a`)))
+Note	1003	select `test`.`up`.`a` AS `a`,`test`.`up`.`b` AS `b` from `test`.`t1` `up` where <expr_cache><`test`.`up`.`a`>(exists(select 1 from `test`.`t1` where (`test`.`t1`.`a` = `test`.`up`.`a`) limit 1))
 drop table t1;
 CREATE TABLE t1 (t1_a int);
 INSERT INTO t1 VALUES (1);
@@ -4432,7 +4432,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 2	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 Warnings:
 Note	1276	Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
-Note	1003	select 2 AS `2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a`>(exists(select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`)))
+Note	1003	select 2 AS `2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a`>(exists(select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`) limit 1))
 EXPLAIN EXTENDED
 SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a) UNION
 (SELECT 1 FROM t2 WHERE t1.a = t2.a));
@@ -4444,7 +4444,7 @@ NULL	UNION RESULT	<union2,3>	ALL	NULL	NULL	NULL	NULL	NULL	NULL
 Warnings:
 Note	1276	Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
 Note	1276	Field or reference 'test.t1.a' of SELECT #3 was resolved in SELECT #1
-Note	1003	select 2 AS `2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a`>(exists((select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`)) union (select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`))))
+Note	1003	select 2 AS `2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a`>(exists((select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`)) union (select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`)) limit 1))
 DROP TABLE t1,t2;
 create table t0(a int);
 insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
@@ -7187,4 +7187,35 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
 2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
 drop table t1,t2;
+#
+# MDEV-19429: Wrong query result with EXISTS and LIMIT 0
+#
+create table t10 (a int);
+insert into t10 values (1),(2),(3);
+create table t12 (a int);
+insert into t12 values (1),(2),(3);
+select * from t10 where exists (select * from t12 order by a limit 0);
+a
+explain select * from t10 where exists (select * from t12 order by a limit 0);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Zero limit
+prepare stmt1 from "select * from t10 where exists (select * from t12 order by a limit ?)";
+set @l=1;
+execute stmt1 using @l;
+a
+1
+2
+3
+set @l=2;
+execute stmt1 using @l;
+a
+1
+2
+3
+set @l=0;
+execute stmt1 using @l;
+a
+deallocate prepare stmt1;
+drop table t10, t12;
 End of 5.5 tests
diff --git a/mysql-test/r/subselect_mat.result b/mysql-test/r/subselect_mat.result
index 0e10800331a..79d5fa37f16 100644
--- a/mysql-test/r/subselect_mat.result
+++ b/mysql-test/r/subselect_mat.result
@@ -2219,7 +2219,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 3	MATERIALIZED	t3	ALL	NULL	NULL	NULL	NULL	8	100.00	
 Warnings:
 Note	1276	Field or reference 'test.t1.f1' of SELECT #2 was resolved in SELECT #1
-Note	1003	select `test`.`t1`.`f1` AS `f1` from `test`.`t1` where <expr_cache><`test`.`t1`.`f1`>(exists(select 1 from `test`.`t2` semi join (`test`.`t3`) join `test`.`t3` where ((`test`.`t3`.`i3` = `test`.`t2`.`i2`) and (`test`.`t1`.`f1` = `test`.`t3`.`f3`))))
+Note	1003	select `test`.`t1`.`f1` AS `f1` from `test`.`t1` where <expr_cache><`test`.`t1`.`f1`>(exists(select 1 from `test`.`t2` semi join (`test`.`t3`) join `test`.`t3` where ((`test`.`t3`.`i3` = `test`.`t2`.`i2`) and (`test`.`t1`.`f1` = `test`.`t3`.`f3`)) limit 1))
 # this checks the result set above
 set @save_optimizer_switch= @@optimizer_switch;
 set optimizer_switch= 'materialization=off,semijoin=off';
diff --git a/mysql-test/r/subselect_no_mat.result b/mysql-test/r/subselect_no_mat.result
index 5c21e746b60..7662e416a66 100644
--- a/mysql-test/r/subselect_no_mat.result
+++ b/mysql-test/r/subselect_no_mat.result
@@ -348,7 +348,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 2	DEPENDENT SUBQUERY	t7	eq_ref	PRIMARY	PRIMARY	4	test.t6.clinic_uq	1	100.00	Using index
 Warnings:
 Note	1276	Field or reference 'test.t6.clinic_uq' of SELECT #2 was resolved in SELECT #1
-Note	1003	select `test`.`t6`.`patient_uq` AS `patient_uq`,`test`.`t6`.`clinic_uq` AS `clinic_uq` from `test`.`t6` where <expr_cache><`test`.`t6`.`clinic_uq`>(exists(select 1 from `test`.`t7` where (`test`.`t7`.`uq` = `test`.`t6`.`clinic_uq`)))
+Note	1003	select `test`.`t6`.`patient_uq` AS `patient_uq`,`test`.`t6`.`clinic_uq` AS `clinic_uq` from `test`.`t6` where <expr_cache><`test`.`t6`.`clinic_uq`>(exists(select 1 from `test`.`t7` where (`test`.`t7`.`uq` = `test`.`t6`.`clinic_uq`) limit 1))
 select * from t1 where a= (select a from t2,t4 where t2.b=t4.b);
 ERROR 23000: Column 'a' in field list is ambiguous
 drop table t1,t2,t3;
@@ -1894,7 +1894,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 2	DEPENDENT SUBQUERY	t1	eq_ref	PRIMARY	PRIMARY	4	test.tt.id	1	100.00	Using where; Using index
 Warnings:
 Note	1276	Field or reference 'test.tt.id' of SELECT #2 was resolved in SELECT #1
-Note	1003	select `test`.`tt`.`id` AS `id`,`test`.`tt`.`text` AS `text` from `test`.`t1` `tt` where (not(<expr_cache><`test`.`tt`.`id`>(exists(select `test`.`t1`.`id` from `test`.`t1` where ((`test`.`t1`.`id` < 8) and (`test`.`t1`.`id` = `test`.`tt`.`id`)) having (`test`.`t1`.`id` is not null)))))
+Note	1003	select `test`.`tt`.`id` AS `id`,`test`.`tt`.`text` AS `text` from `test`.`t1` `tt` where (not(<expr_cache><`test`.`tt`.`id`>(exists(select `test`.`t1`.`id` from `test`.`t1` where ((`test`.`t1`.`id` < 8) and (`test`.`t1`.`id` = `test`.`tt`.`id`)) having (`test`.`t1`.`id` is not null) limit 1))))
 insert into t1 (id, text) values (1000, 'text1000'), (1001, 'text1001');
 create table t2 (id int not null, text varchar(20) not null default '', primary key (id));
 insert into t2 (id, text) values (1, 'text1'), (2, 'text2'), (3, 'text3'), (4, 'text4'), (5, 'text5'), (6, 'text6'), (7, 'text7'), (8, 'text8'), (9, 'text9'), (10, 'text10'), (11, 'text1'), (12, 'text2'), (13, 'text3'), (14, 'text4'), (15, 'text5'), (16, 'text6'), (17, 'text7'), (18, 'text8'), (19, 'text9'), (20, 'text10'),(21, 'text1'), (22, 'text2'), (23, 'text3'), (24, 'text4'), (25, 'text5'), (26, 'text6'), (27, 'text7'), (28, 'text8'), (29, 'text9'), (30, 'text10'), (31, 'text1'), (32, 'text2'), (33, 'text3'), (34, 'text4'), (35, 'text5'), (36, 'text6'), (37, 'text7'), (38, 'text8'), (39, 'text9'), (40, 'text10'), (41, 'text1'), (42, 'text2'), (43, 'text3'), (44, 'text4'), (45, 'text5'), (46, 'text6'), (47, 'text7'), (48, 'text8'), (49, 'text9'), (50, 'text10');
@@ -2430,7 +2430,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 2	DEPENDENT SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 Warnings:
 Note	1276	Field or reference 'test.up.a' of SELECT #2 was resolved in SELECT #1
-Note	1003	select `test`.`up`.`a` AS `a`,`test`.`up`.`b` AS `b` from `test`.`t1` `up` where <expr_cache><`test`.`up`.`a`>(exists(select 1 from `test`.`t1` where (`test`.`t1`.`a` = `test`.`up`.`a`)))
+Note	1003	select `test`.`up`.`a` AS `a`,`test`.`up`.`b` AS `b` from `test`.`t1` `up` where <expr_cache><`test`.`up`.`a`>(exists(select 1 from `test`.`t1` where (`test`.`t1`.`a` = `test`.`up`.`a`) limit 1))
 drop table t1;
 CREATE TABLE t1 (t1_a int);
 INSERT INTO t1 VALUES (1);
@@ -4436,7 +4436,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 2	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 Warnings:
 Note	1276	Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
-Note	1003	select 2 AS `2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a`>(exists(select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`)))
+Note	1003	select 2 AS `2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a`>(exists(select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`) limit 1))
 EXPLAIN EXTENDED
 SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a) UNION
 (SELECT 1 FROM t2 WHERE t1.a = t2.a));
@@ -4448,7 +4448,7 @@ NULL	UNION RESULT	<union2,3>	ALL	NULL	NULL	NULL	NULL	NULL	NULL
 Warnings:
 Note	1276	Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
 Note	1276	Field or reference 'test.t1.a' of SELECT #3 was resolved in SELECT #1
-Note	1003	select 2 AS `2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a`>(exists((select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`)) union (select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`))))
+Note	1003	select 2 AS `2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a`>(exists((select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`)) union (select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`)) limit 1))
 DROP TABLE t1,t2;
 create table t0(a int);
 insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
@@ -7184,6 +7184,37 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
 2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
 drop table t1,t2;
+#
+# MDEV-19429: Wrong query result with EXISTS and LIMIT 0
+#
+create table t10 (a int);
+insert into t10 values (1),(2),(3);
+create table t12 (a int);
+insert into t12 values (1),(2),(3);
+select * from t10 where exists (select * from t12 order by a limit 0);
+a
+explain select * from t10 where exists (select * from t12 order by a limit 0);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Zero limit
+prepare stmt1 from "select * from t10 where exists (select * from t12 order by a limit ?)";
+set @l=1;
+execute stmt1 using @l;
+a
+1
+2
+3
+set @l=2;
+execute stmt1 using @l;
+a
+1
+2
+3
+set @l=0;
+execute stmt1 using @l;
+a
+deallocate prepare stmt1;
+drop table t10, t12;
 End of 5.5 tests
 set optimizer_switch=default;
 select @@optimizer_switch like '%materialization=on%';
diff --git a/mysql-test/r/subselect_no_opts.result b/mysql-test/r/subselect_no_opts.result
index 8ab1f1bd3f9..0242eac3edd 100644
--- a/mysql-test/r/subselect_no_opts.result
+++ b/mysql-test/r/subselect_no_opts.result
@@ -344,7 +344,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 2	DEPENDENT SUBQUERY	t7	eq_ref	PRIMARY	PRIMARY	4	test.t6.clinic_uq	1	100.00	Using index
 Warnings:
 Note	1276	Field or reference 'test.t6.clinic_uq' of SELECT #2 was resolved in SELECT #1
-Note	1003	select `test`.`t6`.`patient_uq` AS `patient_uq`,`test`.`t6`.`clinic_uq` AS `clinic_uq` from `test`.`t6` where exists(select 1 from `test`.`t7` where (`test`.`t7`.`uq` = `test`.`t6`.`clinic_uq`))
+Note	1003	select `test`.`t6`.`patient_uq` AS `patient_uq`,`test`.`t6`.`clinic_uq` AS `clinic_uq` from `test`.`t6` where exists(select 1 from `test`.`t7` where (`test`.`t7`.`uq` = `test`.`t6`.`clinic_uq`) limit 1)
 select * from t1 where a= (select a from t2,t4 where t2.b=t4.b);
 ERROR 23000: Column 'a' in field list is ambiguous
 drop table t1,t2,t3;
@@ -1890,7 +1890,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 2	DEPENDENT SUBQUERY	t1	eq_ref	PRIMARY	PRIMARY	4	test.tt.id	1	100.00	Using where; Using index
 Warnings:
 Note	1276	Field or reference 'test.tt.id' of SELECT #2 was resolved in SELECT #1
-Note	1003	select `test`.`tt`.`id` AS `id`,`test`.`tt`.`text` AS `text` from `test`.`t1` `tt` where (not(exists(select `test`.`t1`.`id` from `test`.`t1` where ((`test`.`t1`.`id` < 8) and (`test`.`t1`.`id` = `test`.`tt`.`id`)) having (`test`.`t1`.`id` is not null))))
+Note	1003	select `test`.`tt`.`id` AS `id`,`test`.`tt`.`text` AS `text` from `test`.`t1` `tt` where (not(exists(select `test`.`t1`.`id` from `test`.`t1` where ((`test`.`t1`.`id` < 8) and (`test`.`t1`.`id` = `test`.`tt`.`id`)) having (`test`.`t1`.`id` is not null) limit 1)))
 insert into t1 (id, text) values (1000, 'text1000'), (1001, 'text1001');
 create table t2 (id int not null, text varchar(20) not null default '', primary key (id));
 insert into t2 (id, text) values (1, 'text1'), (2, 'text2'), (3, 'text3'), (4, 'text4'), (5, 'text5'), (6, 'text6'), (7, 'text7'), (8, 'text8'), (9, 'text9'), (10, 'text10'), (11, 'text1'), (12, 'text2'), (13, 'text3'), (14, 'text4'), (15, 'text5'), (16, 'text6'), (17, 'text7'), (18, 'text8'), (19, 'text9'), (20, 'text10'),(21, 'text1'), (22, 'text2'), (23, 'text3'), (24, 'text4'), (25, 'text5'), (26, 'text6'), (27, 'text7'), (28, 'text8'), (29, 'text9'), (30, 'text10'), (31, 'text1'), (32, 'text2'), (33, 'text3'), (34, 'text4'), (35, 'text5'), (36, 'text6'), (37, 'text7'), (38, 'text8'), (39, 'text9'), (40, 'text10'), (41, 'text1'), (42, 'text2'), (43, 'text3'), (44, 'text4'), (45, 'text5'), (46, 'text6'), (47, 'text7'), (48, 'text8'), (49, 'text9'), (50, 'text10');
@@ -2426,7 +2426,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 2	DEPENDENT SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 Warnings:
 Note	1276	Field or reference 'test.up.a' of SELECT #2 was resolved in SELECT #1
-Note	1003	select `test`.`up`.`a` AS `a`,`test`.`up`.`b` AS `b` from `test`.`t1` `up` where exists(select 1 from `test`.`t1` where (`test`.`t1`.`a` = `test`.`up`.`a`))
+Note	1003	select `test`.`up`.`a` AS `a`,`test`.`up`.`b` AS `b` from `test`.`t1` `up` where exists(select 1 from `test`.`t1` where (`test`.`t1`.`a` = `test`.`up`.`a`) limit 1)
 drop table t1;
 CREATE TABLE t1 (t1_a int);
 INSERT INTO t1 VALUES (1);
@@ -4432,7 +4432,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 2	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 Warnings:
 Note	1276	Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
-Note	1003	select 2 AS `2` from `test`.`t1` where exists(select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`))
+Note	1003	select 2 AS `2` from `test`.`t1` where exists(select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`) limit 1)
 EXPLAIN EXTENDED
 SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a) UNION
 (SELECT 1 FROM t2 WHERE t1.a = t2.a));
@@ -4444,7 +4444,7 @@ NULL	UNION RESULT	<union2,3>	ALL	NULL	NULL	NULL	NULL	NULL	NULL
 Warnings:
 Note	1276	Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
 Note	1276	Field or reference 'test.t1.a' of SELECT #3 was resolved in SELECT #1
-Note	1003	select 2 AS `2` from `test`.`t1` where exists((select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`)) union (select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`)))
+Note	1003	select 2 AS `2` from `test`.`t1` where exists((select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`)) union (select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`)) limit 1)
 DROP TABLE t1,t2;
 create table t0(a int);
 insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
@@ -7182,5 +7182,36 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
 2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
 drop table t1,t2;
+#
+# MDEV-19429: Wrong query result with EXISTS and LIMIT 0
+#
+create table t10 (a int);
+insert into t10 values (1),(2),(3);
+create table t12 (a int);
+insert into t12 values (1),(2),(3);
+select * from t10 where exists (select * from t12 order by a limit 0);
+a
+explain select * from t10 where exists (select * from t12 order by a limit 0);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Zero limit
+prepare stmt1 from "select * from t10 where exists (select * from t12 order by a limit ?)";
+set @l=1;
+execute stmt1 using @l;
+a
+1
+2
+3
+set @l=2;
+execute stmt1 using @l;
+a
+1
+2
+3
+set @l=0;
+execute stmt1 using @l;
+a
+deallocate prepare stmt1;
+drop table t10, t12;
 End of 5.5 tests
 set @optimizer_switch_for_subselect_test=null;
diff --git a/mysql-test/r/subselect_no_scache.result b/mysql-test/r/subselect_no_scache.result
index f0afa7ef19c..15f29c55d10 100644
--- a/mysql-test/r/subselect_no_scache.result
+++ b/mysql-test/r/subselect_no_scache.result
@@ -347,7 +347,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 2	DEPENDENT SUBQUERY	t7	eq_ref	PRIMARY	PRIMARY	4	test.t6.clinic_uq	1	100.00	Using index
 Warnings:
 Note	1276	Field or reference 'test.t6.clinic_uq' of SELECT #2 was resolved in SELECT #1
-Note	1003	select `test`.`t6`.`patient_uq` AS `patient_uq`,`test`.`t6`.`clinic_uq` AS `clinic_uq` from `test`.`t6` where exists(select 1 from `test`.`t7` where (`test`.`t7`.`uq` = `test`.`t6`.`clinic_uq`))
+Note	1003	select `test`.`t6`.`patient_uq` AS `patient_uq`,`test`.`t6`.`clinic_uq` AS `clinic_uq` from `test`.`t6` where exists(select 1 from `test`.`t7` where (`test`.`t7`.`uq` = `test`.`t6`.`clinic_uq`) limit 1)
 select * from t1 where a= (select a from t2,t4 where t2.b=t4.b);
 ERROR 23000: Column 'a' in field list is ambiguous
 drop table t1,t2,t3;
@@ -1893,7 +1893,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 2	DEPENDENT SUBQUERY	t1	eq_ref	PRIMARY	PRIMARY	4	test.tt.id	1	100.00	Using where; Using index
 Warnings:
 Note	1276	Field or reference 'test.tt.id' of SELECT #2 was resolved in SELECT #1
-Note	1003	select `test`.`tt`.`id` AS `id`,`test`.`tt`.`text` AS `text` from `test`.`t1` `tt` where (not(exists(select `test`.`t1`.`id` from `test`.`t1` where ((`test`.`t1`.`id` < 8) and (`test`.`t1`.`id` = `test`.`tt`.`id`)) having (`test`.`t1`.`id` is not null))))
+Note	1003	select `test`.`tt`.`id` AS `id`,`test`.`tt`.`text` AS `text` from `test`.`t1` `tt` where (not(exists(select `test`.`t1`.`id` from `test`.`t1` where ((`test`.`t1`.`id` < 8) and (`test`.`t1`.`id` = `test`.`tt`.`id`)) having (`test`.`t1`.`id` is not null) limit 1)))
 insert into t1 (id, text) values (1000, 'text1000'), (1001, 'text1001');
 create table t2 (id int not null, text varchar(20) not null default '', primary key (id));
 insert into t2 (id, text) values (1, 'text1'), (2, 'text2'), (3, 'text3'), (4, 'text4'), (5, 'text5'), (6, 'text6'), (7, 'text7'), (8, 'text8'), (9, 'text9'), (10, 'text10'), (11, 'text1'), (12, 'text2'), (13, 'text3'), (14, 'text4'), (15, 'text5'), (16, 'text6'), (17, 'text7'), (18, 'text8'), (19, 'text9'), (20, 'text10'),(21, 'text1'), (22, 'text2'), (23, 'text3'), (24, 'text4'), (25, 'text5'), (26, 'text6'), (27, 'text7'), (28, 'text8'), (29, 'text9'), (30, 'text10'), (31, 'text1'), (32, 'text2'), (33, 'text3'), (34, 'text4'), (35, 'text5'), (36, 'text6'), (37, 'text7'), (38, 'text8'), (39, 'text9'), (40, 'text10'), (41, 'text1'), (42, 'text2'), (43, 'text3'), (44, 'text4'), (45, 'text5'), (46, 'text6'), (47, 'text7'), (48, 'text8'), (49, 'text9'), (50, 'text10');
@@ -2429,7 +2429,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 2	DEPENDENT SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 Warnings:
 Note	1276	Field or reference 'test.up.a' of SELECT #2 was resolved in SELECT #1
-Note	1003	select `test`.`up`.`a` AS `a`,`test`.`up`.`b` AS `b` from `test`.`t1` `up` where exists(select 1 from `test`.`t1` where (`test`.`t1`.`a` = `test`.`up`.`a`))
+Note	1003	select `test`.`up`.`a` AS `a`,`test`.`up`.`b` AS `b` from `test`.`t1` `up` where exists(select 1 from `test`.`t1` where (`test`.`t1`.`a` = `test`.`up`.`a`) limit 1)
 drop table t1;
 CREATE TABLE t1 (t1_a int);
 INSERT INTO t1 VALUES (1);
@@ -4438,7 +4438,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 2	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 Warnings:
 Note	1276	Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
-Note	1003	select 2 AS `2` from `test`.`t1` where exists(select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`))
+Note	1003	select 2 AS `2` from `test`.`t1` where exists(select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`) limit 1)
 EXPLAIN EXTENDED
 SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a) UNION
 (SELECT 1 FROM t2 WHERE t1.a = t2.a));
@@ -4450,7 +4450,7 @@ NULL	UNION RESULT	<union2,3>	ALL	NULL	NULL	NULL	NULL	NULL	NULL
 Warnings:
 Note	1276	Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
 Note	1276	Field or reference 'test.t1.a' of SELECT #3 was resolved in SELECT #1
-Note	1003	select 2 AS `2` from `test`.`t1` where exists((select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`)) union (select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`)))
+Note	1003	select 2 AS `2` from `test`.`t1` where exists((select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`)) union (select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`)) limit 1)
 DROP TABLE t1,t2;
 create table t0(a int);
 insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
@@ -7193,6 +7193,37 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
 2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
 drop table t1,t2;
+#
+# MDEV-19429: Wrong query result with EXISTS and LIMIT 0
+#
+create table t10 (a int);
+insert into t10 values (1),(2),(3);
+create table t12 (a int);
+insert into t12 values (1),(2),(3);
+select * from t10 where exists (select * from t12 order by a limit 0);
+a
+explain select * from t10 where exists (select * from t12 order by a limit 0);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Zero limit
+prepare stmt1 from "select * from t10 where exists (select * from t12 order by a limit ?)";
+set @l=1;
+execute stmt1 using @l;
+a
+1
+2
+3
+set @l=2;
+execute stmt1 using @l;
+a
+1
+2
+3
+set @l=0;
+execute stmt1 using @l;
+a
+deallocate prepare stmt1;
+drop table t10, t12;
 End of 5.5 tests
 set optimizer_switch=default;
 select @@optimizer_switch like '%subquery_cache=on%';
diff --git a/mysql-test/r/subselect_no_semijoin.result b/mysql-test/r/subselect_no_semijoin.result
index 0d5fbc3498a..c75f335c6ef 100644
--- a/mysql-test/r/subselect_no_semijoin.result
+++ b/mysql-test/r/subselect_no_semijoin.result
@@ -344,7 +344,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 2	DEPENDENT SUBQUERY	t7	eq_ref	PRIMARY	PRIMARY	4	test.t6.clinic_uq	1	100.00	Using index
 Warnings:
 Note	1276	Field or reference 'test.t6.clinic_uq' of SELECT #2 was resolved in SELECT #1
-Note	1003	select `test`.`t6`.`patient_uq` AS `patient_uq`,`test`.`t6`.`clinic_uq` AS `clinic_uq` from `test`.`t6` where <expr_cache><`test`.`t6`.`clinic_uq`>(exists(select 1 from `test`.`t7` where (`test`.`t7`.`uq` = `test`.`t6`.`clinic_uq`)))
+Note	1003	select `test`.`t6`.`patient_uq` AS `patient_uq`,`test`.`t6`.`clinic_uq` AS `clinic_uq` from `test`.`t6` where <expr_cache><`test`.`t6`.`clinic_uq`>(exists(select 1 from `test`.`t7` where (`test`.`t7`.`uq` = `test`.`t6`.`clinic_uq`) limit 1))
 select * from t1 where a= (select a from t2,t4 where t2.b=t4.b);
 ERROR 23000: Column 'a' in field list is ambiguous
 drop table t1,t2,t3;
@@ -1890,7 +1890,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 2	DEPENDENT SUBQUERY	t1	eq_ref	PRIMARY	PRIMARY	4	test.tt.id	1	100.00	Using where; Using index
 Warnings:
 Note	1276	Field or reference 'test.tt.id' of SELECT #2 was resolved in SELECT #1
-Note	1003	select `test`.`tt`.`id` AS `id`,`test`.`tt`.`text` AS `text` from `test`.`t1` `tt` where (not(<expr_cache><`test`.`tt`.`id`>(exists(select `test`.`t1`.`id` from `test`.`t1` where ((`test`.`t1`.`id` < 8) and (`test`.`t1`.`id` = `test`.`tt`.`id`)) having (`test`.`t1`.`id` is not null)))))
+Note	1003	select `test`.`tt`.`id` AS `id`,`test`.`tt`.`text` AS `text` from `test`.`t1` `tt` where (not(<expr_cache><`test`.`tt`.`id`>(exists(select `test`.`t1`.`id` from `test`.`t1` where ((`test`.`t1`.`id` < 8) and (`test`.`t1`.`id` = `test`.`tt`.`id`)) having (`test`.`t1`.`id` is not null) limit 1))))
 insert into t1 (id, text) values (1000, 'text1000'), (1001, 'text1001');
 create table t2 (id int not null, text varchar(20) not null default '', primary key (id));
 insert into t2 (id, text) values (1, 'text1'), (2, 'text2'), (3, 'text3'), (4, 'text4'), (5, 'text5'), (6, 'text6'), (7, 'text7'), (8, 'text8'), (9, 'text9'), (10, 'text10'), (11, 'text1'), (12, 'text2'), (13, 'text3'), (14, 'text4'), (15, 'text5'), (16, 'text6'), (17, 'text7'), (18, 'text8'), (19, 'text9'), (20, 'text10'),(21, 'text1'), (22, 'text2'), (23, 'text3'), (24, 'text4'), (25, 'text5'), (26, 'text6'), (27, 'text7'), (28, 'text8'), (29, 'text9'), (30, 'text10'), (31, 'text1'), (32, 'text2'), (33, 'text3'), (34, 'text4'), (35, 'text5'), (36, 'text6'), (37, 'text7'), (38, 'text8'), (39, 'text9'), (40, 'text10'), (41, 'text1'), (42, 'text2'), (43, 'text3'), (44, 'text4'), (45, 'text5'), (46, 'text6'), (47, 'text7'), (48, 'text8'), (49, 'text9'), (50, 'text10');
@@ -2426,7 +2426,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 2	DEPENDENT SUBQUERY	t1	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 Warnings:
 Note	1276	Field or reference 'test.up.a' of SELECT #2 was resolved in SELECT #1
-Note	1003	select `test`.`up`.`a` AS `a`,`test`.`up`.`b` AS `b` from `test`.`t1` `up` where <expr_cache><`test`.`up`.`a`>(exists(select 1 from `test`.`t1` where (`test`.`t1`.`a` = `test`.`up`.`a`)))
+Note	1003	select `test`.`up`.`a` AS `a`,`test`.`up`.`b` AS `b` from `test`.`t1` `up` where <expr_cache><`test`.`up`.`a`>(exists(select 1 from `test`.`t1` where (`test`.`t1`.`a` = `test`.`up`.`a`) limit 1))
 drop table t1;
 CREATE TABLE t1 (t1_a int);
 INSERT INTO t1 VALUES (1);
@@ -4432,7 +4432,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 2	DEPENDENT SUBQUERY	t2	ALL	NULL	NULL	NULL	NULL	2	100.00	Using where
 Warnings:
 Note	1276	Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
-Note	1003	select 2 AS `2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a`>(exists(select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`)))
+Note	1003	select 2 AS `2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a`>(exists(select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`) limit 1))
 EXPLAIN EXTENDED
 SELECT 2 FROM t1 WHERE EXISTS ((SELECT 1 FROM t2 WHERE t1.a=t2.a) UNION
 (SELECT 1 FROM t2 WHERE t1.a = t2.a));
@@ -4444,7 +4444,7 @@ NULL	UNION RESULT	<union2,3>	ALL	NULL	NULL	NULL	NULL	NULL	NULL
 Warnings:
 Note	1276	Field or reference 'test.t1.a' of SELECT #2 was resolved in SELECT #1
 Note	1276	Field or reference 'test.t1.a' of SELECT #3 was resolved in SELECT #1
-Note	1003	select 2 AS `2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a`>(exists((select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`)) union (select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`))))
+Note	1003	select 2 AS `2` from `test`.`t1` where <expr_cache><`test`.`t1`.`a`>(exists((select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`)) union (select 1 from `test`.`t2` where (`test`.`t1`.`a` = `test`.`t2`.`a`)) limit 1))
 DROP TABLE t1,t2;
 create table t0(a int);
 insert into t0 values (0),(1),(2),(3),(4),(5),(6),(7),(8),(9);
@@ -7182,6 +7182,37 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
 2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Select tables optimized away
 drop table t1,t2;
+#
+# MDEV-19429: Wrong query result with EXISTS and LIMIT 0
+#
+create table t10 (a int);
+insert into t10 values (1),(2),(3);
+create table t12 (a int);
+insert into t12 values (1),(2),(3);
+select * from t10 where exists (select * from t12 order by a limit 0);
+a
+explain select * from t10 where exists (select * from t12 order by a limit 0);
+id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
+1	PRIMARY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
+2	SUBQUERY	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Zero limit
+prepare stmt1 from "select * from t10 where exists (select * from t12 order by a limit ?)";
+set @l=1;
+execute stmt1 using @l;
+a
+1
+2
+3
+set @l=2;
+execute stmt1 using @l;
+a
+1
+2
+3
+set @l=0;
+execute stmt1 using @l;
+a
+deallocate prepare stmt1;
+drop table t10, t12;
 End of 5.5 tests
 set @optimizer_switch_for_subselect_test=null;
 set @join_cache_level_for_subselect_test=NULL;
diff --git a/mysql-test/r/subselect_sj_mat.result b/mysql-test/r/subselect_sj_mat.result
index cb4b63047e5..1e123f17cd3 100644
--- a/mysql-test/r/subselect_sj_mat.result
+++ b/mysql-test/r/subselect_sj_mat.result
@@ -2259,7 +2259,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
 3	MATERIALIZED	t3	ALL	NULL	NULL	NULL	NULL	8	100.00	
 Warnings:
 Note	1276	Field or reference 'test.t1.f1' of SELECT #2 was resolved in SELECT #1
-Note	1003	select `test`.`t1`.`f1` AS `f1` from `test`.`t1` where <expr_cache><`test`.`t1`.`f1`>(exists(select 1 from `test`.`t2` semi join (`test`.`t3`) join `test`.`t3` where ((`test`.`t3`.`i3` = `test`.`t2`.`i2`) and (`test`.`t1`.`f1` = `test`.`t3`.`f3`))))
+Note	1003	select `test`.`t1`.`f1` AS `f1` from `test`.`t1` where <expr_cache><`test`.`t1`.`f1`>(exists(select 1 from `test`.`t2` semi join (`test`.`t3`) join `test`.`t3` where ((`test`.`t3`.`i3` = `test`.`t2`.`i2`) and (`test`.`t1`.`f1` = `test`.`t3`.`f3`)) limit 1))
 # this checks the result set above
 set @save_optimizer_switch= @@optimizer_switch;
 set optimizer_switch= 'materialization=off,semijoin=off';
diff --git a/mysql-test/r/view_alias.result b/mysql-test/r/view_alias.result
index 72c4bf29f25..fc05e4f2276 100644
--- a/mysql-test/r/view_alias.result
+++ b/mysql-test/r/view_alias.result
@@ -90,22 +90,22 @@ CREATE TABLE t2 LIKE t1;
 # Test alias in subquery
 CREATE VIEW v1 AS SELECT a FROM t1 WHERE EXISTS (SELECT 1 FROM t2 AS b WHERE b.a = 0);
 DROP VIEW v1;
-CREATE VIEW v1 AS select `test`.`t1`.`a` AS `a` from `test`.`t1` where exists(select 1 from `test`.`t2` `b` where (`b`.`a` = 0));
+CREATE VIEW v1 AS select `test`.`t1`.`a` AS `a` from `test`.`t1` where exists(select 1 from `test`.`t2` `b` where (`b`.`a` = 0) limit 1);
 DROP VIEW v1;
 # Test column alias in subquery
 CREATE VIEW v1 AS SELECT a FROM t1 WHERE EXISTS (SELECT a AS alias FROM t1 GROUP BY alias);
 SHOW CREATE VIEW v1;
 View	Create View	character_set_client	collation_connection
-v1	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select `t1`.`a` AS `a` from `t1` where exists(select `t1`.`a` AS `alias` from `t1` group by `t1`.`a`)	latin1	latin1_swedish_ci
+v1	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select `t1`.`a` AS `a` from `t1` where exists(select `t1`.`a` AS `alias` from `t1` group by `t1`.`a` limit 1)	latin1	latin1_swedish_ci
 DROP VIEW v1;
-CREATE VIEW v1 AS select `test`.`t1`.`a` AS `a` from `test`.`t1` where exists(select `test`.`t1`.`a` AS `alias` from `test`.`t1` group by `test`.`t1`.`a`);
+CREATE VIEW v1 AS select `test`.`t1`.`a` AS `a` from `test`.`t1` where exists(select `test`.`t1`.`a` AS `alias` from `test`.`t1` group by `test`.`t1`.`a` limit 1);
 DROP VIEW v1;
 # Alias as the expression column name.
 CREATE VIEW v1 AS SELECT a FROM t1 WHERE EXISTS (SELECT '  a   ' AS alias FROM t1 GROUP BY alias);
 SHOW CREATE VIEW v1;
 View	Create View	character_set_client	collation_connection
-v1	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select `t1`.`a` AS `a` from `t1` where exists(select '  a   ' AS `alias` from `t1` group by '  a   ')	latin1	latin1_swedish_ci
+v1	CREATE ALGORITHM=UNDEFINED DEFINER=`root`@`localhost` SQL SECURITY DEFINER VIEW `v1` AS select `t1`.`a` AS `a` from `t1` where exists(select '  a   ' AS `alias` from `t1` group by '  a   ' limit 1)	latin1	latin1_swedish_ci
 DROP VIEW v1;
-CREATE VIEW v1 AS select `test`.`t1`.`a` AS `a` from `test`.`t1` where exists(select '  a   ' AS `alias` from `test`.`t1` group by '  a   ');
+CREATE VIEW v1 AS select `test`.`t1`.`a` AS `a` from `test`.`t1` where exists(select '  a   ' AS `alias` from `test`.`t1` group by '  a   ' limit 1);
 DROP VIEW v1;
 DROP TABLE t1, t2;
-- 
cgit v1.2.1


From 82563c5fc0a40d64d8e8e9de2bf6f904fa6c0dc6 Mon Sep 17 00:00:00 2001
From: Sergei Golubchik <serg@mariadb.org>
Date: Sun, 21 Jul 2019 12:09:17 +0200
Subject: MDEV-20110 don't try to load client plugins with invalid names

reported by lixtelnis
---
 mysql-test/r/connect_debug.result | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'mysql-test/r')

diff --git a/mysql-test/r/connect_debug.result b/mysql-test/r/connect_debug.result
index 0452b238db9..3151166a0e6 100644
--- a/mysql-test/r/connect_debug.result
+++ b/mysql-test/r/connect_debug.result
@@ -3,3 +3,8 @@ set global debug_dbug='+d,auth_disconnect';
 create user 'bad' identified by 'worse';
 set global debug_dbug=@old_dbug;
 drop user bad;
+set global debug_dbug='+d,auth_invalid_plugin';
+create user 'bad' identified by 'worse';
+ERROR 2059 (HY000): Authentication plugin 'foo/bar' cannot be loaded: invalid plugin name
+set global debug_dbug=@old_dbug;
+drop user bad;
-- 
cgit v1.2.1


From 5e8ab9b7af159cee6e954f62b6304c2c33b6f6e2 Mon Sep 17 00:00:00 2001
From: Sergei Golubchik <serg@mariadb.com>
Date: Tue, 16 Apr 2019 09:33:02 +0530
Subject: Bug#27302459: EMPTY VALUE IN MYSQL.PLUGIN TABLE CAUSES SERVER TO EXIT
 ON STARTUP

Description:- During server startup, the server exits if
the 'mysql.plugin' system table has any rows with empty
value for the field 'name' (plugin name).
---
 mysql-test/r/plugin.result | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'mysql-test/r')

diff --git a/mysql-test/r/plugin.result b/mysql-test/r/plugin.result
index 4fb4986d0fd..68ee682e562 100644
--- a/mysql-test/r/plugin.result
+++ b/mysql-test/r/plugin.result
@@ -277,3 +277,5 @@ UNUSABLE
 uninstall soname 'ha_example';
 select plugin_name from information_schema.plugins where plugin_library like 'ha_example%';
 plugin_name
+insert mysql.plugin values ();
+delete from mysql.plugin where name = '';
-- 
cgit v1.2.1


From 8ddb7e3eb71010decd5acc99aa98c82bbe0139aa Mon Sep 17 00:00:00 2001
From: Sergei Golubchik <serg@mariadb.org>
Date: Wed, 24 Jul 2019 13:14:03 +0200
Subject: Bug#27167197 USING ? IN INSTALL PLUGIN QUERY ABORTS DEBUG, AND HANGS
 OPTIMIZED SERVER

check_valid_path() uses my_strcspn() that cannot handle invalid characters
properly. This is fixed by a big refactoring in 10.2 (MDEV-6353).

For 5.5, let's simply swap tests, because check_string_char_length()
rejects invalid characters just fine.
---
 mysql-test/r/plugin.result | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'mysql-test/r')

diff --git a/mysql-test/r/plugin.result b/mysql-test/r/plugin.result
index 68ee682e562..65e993b2766 100644
--- a/mysql-test/r/plugin.result
+++ b/mysql-test/r/plugin.result
@@ -277,5 +277,13 @@ UNUSABLE
 uninstall soname 'ha_example';
 select plugin_name from information_schema.plugins where plugin_library like 'ha_example%';
 plugin_name
+set names utf8;
+select convert('admin𝌆' using utf8);
+convert('admin𝌆' using utf8)
+admin
+Warnings:
+Warning	1300	Invalid utf8 character string: 'F09D8C'
+install plugin foo soname 'admin𝌆';
+ERROR HY000: No paths allowed for shared library
 insert mysql.plugin values ();
 delete from mysql.plugin where name = '';
-- 
cgit v1.2.1