[ Avaa Bypassed ]

#
# test of left outer join
#

--disable_warnings
drop table if exists t0,t1,t2,t3,t4,t5;
--enable_warnings

CREATE TABLE t1 (
  grp int(11) default NULL,
  a bigint(20) unsigned default NULL,
  c char(10) NOT NULL default ''
) ENGINE=MyISAM;
INSERT INTO t1 VALUES (1,1,'a'),(2,2,'b'),(2,3,'c'),(3,4,'E'),(3,5,'C'),(3,6,'D'),(NULL,NULL,'');
create table t2 (id int, a bigint unsigned not null, c char(10), d int, primary key (a));
insert into t2 values (1,1,"a",1),(3,4,"A",4),(3,5,"B",5),(3,6,"C",6),(4,7,"D",7);

select t1.*,t2.* from t1 JOIN t2 where t1.a=t2.a;
select t1.*,t2.* from t1 left join t2 on (t1.a=t2.a) order by t1.grp,t1.a,t2.c;
select t1.*,t2.* from { oj t2 left outer join t1 on (t1.a=t2.a) };
select t1.*,t2.* from t1 as t0,{ oj t2 left outer join t1 on (t1.a=t2.a) } WHERE t0.a=2;
select t1.*,t2.* from t1 left join t2 using (a);
select t1.*,t2.* from t1 left join t2 using (a) where t1.a=t2.a;
select t1.*,t2.* from t1 left join t2 using (a,c);
--sorted_result
select t1.*,t2.* from t1 left join t2 using (c);
select t1.*,t2.* from t1 natural left outer join t2;

select t1.*,t2.* from t1 left join t2 on (t1.a=t2.a) where t2.id=3;
select t1.*,t2.* from t1 left join t2 on (t1.a=t2.a) where t2.id is null;

explain select t1.*,t2.* from t1,t2 where t1.a=t2.a and isnull(t2.a)=1;
explain select t1.*,t2.* from t1 left join t2 on t1.a=t2.a where isnull(t2.a)=1;

--sorted_result
select t1.*,t2.*,t3.a from t1 left join t2 on (t1.a=t2.a) left join t1 as t3 on (t2.a=t3.a);

# The next query should rearange the left joins to get this to work
--error 1054
explain select t1.*,t2.*,t3.a from t1 left join t2 on (t3.a=t2.a) left join t1 as t3 on (t1.a=t3.a);
--error 1054
select t1.*,t2.*,t3.a from t1 left join t2 on (t3.a=t2.a) left join t1 as t3 on (t1.a=t3.a);

# The next query should give an error in MySQL
--error 1054
select t1.*,t2.*,t3.a from t1 left join t2 on (t3.a=t2.a) left join t1 as t3 on (t2.a=t3.a);

# Test of inner join
select t1.*,t2.* from t1 inner join t2 using (a);
select t1.*,t2.* from t1 inner join t2 on (t1.a=t2.a);
select t1.*,t2.* from t1 natural join t2;

drop table t1,t2;

#
# Test of left join bug
#

CREATE TABLE t1 (
 usr_id INT unsigned NOT NULL,
 uniq_id INT unsigned NOT NULL AUTO_INCREMENT,
        start_num INT unsigned NOT NULL DEFAULT 1,
        increment INT unsigned NOT NULL DEFAULT 1,
 PRIMARY KEY (uniq_id),
 INDEX usr_uniq_idx (usr_id, uniq_id),
 INDEX uniq_usr_idx (uniq_id, usr_id)
);
CREATE TABLE t2 (
 id INT unsigned NOT NULL DEFAULT 0,
 usr2_id INT unsigned NOT NULL DEFAULT 0,
 max INT unsigned NOT NULL DEFAULT 0,
 c_amount INT unsigned NOT NULL DEFAULT 0,
 d_max INT unsigned NOT NULL DEFAULT 0,
 d_num INT unsigned NOT NULL DEFAULT 0,
 orig_time INT unsigned NOT NULL DEFAULT 0,
 c_time INT unsigned NOT NULL DEFAULT 0,
 active ENUM ("no","yes") NOT NULL,
 PRIMARY KEY (id,usr2_id),
 INDEX id_idx (id),
 INDEX usr2_idx (usr2_id)
);
INSERT INTO t1 VALUES (3,NULL,0,50),(3,NULL,0,200),(3,NULL,0,25),(3,NULL,0,84676),(3,NULL,0,235),(3,NULL,0,10),(3,NULL,0,3098),(3,NULL,0,2947),(3,NULL,0,8987),(3,NULL,0,8347654),(3,NULL,0,20398),(3,NULL,0,8976),(3,NULL,0,500),(3,NULL,0,198);

#1st select shows that one record is returned with null entries for the right
#table, when selecting on an id that does not exist in the right table t2
SELECT t1.usr_id,t1.uniq_id,t1.increment,
t2.usr2_id,t2.c_amount,t2.max
FROM t1
LEFT JOIN t2 ON t2.id = t1.uniq_id
WHERE t1.uniq_id = 4
ORDER BY t2.c_amount;

# The same with RIGHT JOIN
SELECT t1.usr_id,t1.uniq_id,t1.increment,
t2.usr2_id,t2.c_amount,t2.max
FROM t2
RIGHT JOIN t1 ON t2.id = t1.uniq_id
WHERE t1.uniq_id = 4
ORDER BY t2.c_amount;

INSERT INTO t2 VALUES (2,3,3000,6000,0,0,746584,837484,'yes');
--error ER_DUP_ENTRY
INSERT INTO t2 VALUES (2,3,3000,6000,0,0,746584,837484,'yes');
INSERT INTO t2 VALUES (7,3,1000,2000,0,0,746294,937484,'yes');

#3rd select should show that one record is returned with null entries for the
# right table, when selecting on an id that does not exist in the right table
# t2 but this select returns an empty set!!!!
SELECT t1.usr_id,t1.uniq_id,t1.increment,t2.usr2_id,t2.c_amount,t2.max FROM t1 LEFT JOIN t2 ON t2.id = t1.uniq_id WHERE t1.uniq_id = 4 ORDER BY t2.c_amount;
SELECT t1.usr_id,t1.uniq_id,t1.increment,t2.usr2_id,t2.c_amount,t2.max FROM t1 LEFT JOIN t2 ON t2.id = t1.uniq_id WHERE t1.uniq_id = 4 GROUP BY t2.c_amount;
# Removing the ORDER BY works:
SELECT t1.usr_id,t1.uniq_id,t1.increment,t2.usr2_id,t2.c_amount,t2.max FROM t1 LEFT JOIN t2 ON t2.id = t1.uniq_id WHERE t1.uniq_id = 4;

drop table t1,t2;

#
# Test of LEFT JOIN with const tables (failed for frankie@etsetb.upc.es)
#

CREATE TABLE t1 (
  cod_asig int(11) DEFAULT '0' NOT NULL,
  desc_larga_cat varchar(80) DEFAULT '' NOT NULL,
  desc_larga_cas varchar(80) DEFAULT '' NOT NULL,
  desc_corta_cat varchar(40) DEFAULT '' NOT NULL,
  desc_corta_cas varchar(40) DEFAULT '' NOT NULL,
  cred_total double(3,1) DEFAULT '0.0' NOT NULL,
  pre_requisit int(11),
  co_requisit int(11),
  preco_requisit int(11),
  PRIMARY KEY (cod_asig)
);

INSERT INTO t1 VALUES (10360,'asdfggfg','Introduccion a los  Ordenadores I','asdfggfg','Introduccio Ordinadors I',6.0,NULL,NULL,NULL);
INSERT INTO t1 VALUES (10361,'Components i Circuits Electronics I','Componentes y Circuitos Electronicos I','Components i Circuits Electronics I','Comp. i Circ. Electr. I',6.0,NULL,NULL,NULL);
INSERT INTO t1 VALUES (10362,'Laboratori d`Ordinadors','Laboratorio de Ordenadores','Laboratori d`Ordinadors','Laboratori Ordinadors',4.5,NULL,NULL,NULL);
INSERT INTO t1 VALUES (10363,'Tecniques de Comunicacio Oral i Escrita','Tecnicas de Comunicacion Oral y Escrita','Tecniques de Comunicacio Oral i Escrita','Tec. Com. Oral i Escrita',4.5,NULL,NULL,NULL);
INSERT INTO t1 VALUES (11403,'Projecte Fi de Carrera','Proyecto Fin de Carrera','Projecte Fi de Carrera','PFC',9.0,NULL,NULL,NULL);
INSERT INTO t1 VALUES (11404,'+lgebra lineal','Algebra lineal','+lgebra lineal','+lgebra lineal',15.0,NULL,NULL,NULL);
INSERT INTO t1 VALUES (11405,'+lgebra lineal','Algebra lineal','+lgebra lineal','+lgebra lineal',18.0,NULL,NULL,NULL);
INSERT INTO t1 VALUES (11406,'Calcul Infinitesimal','Cßlculo Infinitesimal','Calcul Infinitesimal','Calcul Infinitesimal',15.0,NULL,NULL,NULL);

CREATE TABLE t2 (
  idAssignatura int(11) DEFAULT '0' NOT NULL,
  Grup int(11) DEFAULT '0' NOT NULL,
  Places smallint(6) DEFAULT '0' NOT NULL,
  PlacesOcupades int(11) DEFAULT '0',
  PRIMARY KEY (idAssignatura,Grup)
);


INSERT INTO t2 VALUES (10360,12,333,0);
INSERT INTO t2 VALUES (10361,30,2,0);
INSERT INTO t2 VALUES (10361,40,3,0);
INSERT INTO t2 VALUES (10360,45,10,0);
INSERT INTO t2 VALUES (10362,10,12,0);
INSERT INTO t2 VALUES (10360,55,2,0);
INSERT INTO t2 VALUES (10360,70,0,0);
INSERT INTO t2 VALUES (10360,565656,0,0);
INSERT INTO t2 VALUES (10360,32767,7,0);
INSERT INTO t2 VALUES (10360,33,8,0);
INSERT INTO t2 VALUES (10360,7887,85,0);
INSERT INTO t2 VALUES (11405,88,8,0);
INSERT INTO t2 VALUES (10360,0,55,0);
INSERT INTO t2 VALUES (10360,99,0,0);
INSERT INTO t2 VALUES (11411,30,10,0);
INSERT INTO t2 VALUES (11404,0,0,0);
INSERT INTO t2 VALUES (10362,11,111,0);
INSERT INTO t2 VALUES (10363,33,333,0);
INSERT INTO t2 VALUES (11412,55,0,0);
INSERT INTO t2 VALUES (50003,66,6,0);
INSERT INTO t2 VALUES (11403,5,0,0);
INSERT INTO t2 VALUES (11406,11,11,0);
INSERT INTO t2 VALUES (11410,11410,131,0);
INSERT INTO t2 VALUES (11416,11416,32767,0);
INSERT INTO t2 VALUES (11409,0,0,0);

CREATE TABLE t3 (
  id int(11) NOT NULL auto_increment,
  dni_pasaporte char(16) DEFAULT '' NOT NULL,
  idPla int(11) DEFAULT '0' NOT NULL,
  cod_asig int(11) DEFAULT '0' NOT NULL,
  any smallint(6) DEFAULT '0' NOT NULL,
  quatrimestre smallint(6) DEFAULT '0' NOT NULL,
  estat char(1) DEFAULT 'M' NOT NULL,
  PRIMARY KEY (id),
  UNIQUE dni_pasaporte (dni_pasaporte,idPla),
  UNIQUE dni_pasaporte_2 (dni_pasaporte,idPla,cod_asig,any,quatrimestre)
);

INSERT INTO t3 VALUES (1,'11111111',1,10362,98,1,'M');

CREATE TABLE t4 (
  id int(11) NOT NULL auto_increment,
  papa int(11) DEFAULT '0' NOT NULL,
  fill int(11) DEFAULT '0' NOT NULL,
  idPla int(11) DEFAULT '0' NOT NULL,
  PRIMARY KEY (id),
  KEY papa (idPla,papa),
  UNIQUE papa_2 (idPla,papa,fill)
);

INSERT INTO t4 VALUES (1,-1,10360,1);
INSERT INTO t4 VALUES (2,-1,10361,1);
INSERT INTO t4 VALUES (3,-1,10362,1);

SELECT DISTINCT fill,desc_larga_cat,cred_total,Grup,Places,PlacesOcupades FROM t4 LEFT JOIN t3 ON t3.cod_asig=fill AND estat='S'   AND dni_pasaporte='11111111'   AND t3.idPla=1 , t2,t1 WHERE fill=t1.cod_asig   AND Places>PlacesOcupades   AND fill=idAssignatura   AND t4.idPla=1   AND papa=-1;

SELECT DISTINCT fill,t3.idPla FROM t4 LEFT JOIN t3 ON t3.cod_asig=t4.fill AND t3.estat='S' AND t3.dni_pasaporte='1234' AND t3.idPla=1 ;

INSERT INTO t3 VALUES (3,'1234',1,10360,98,1,'S');
SELECT DISTINCT fill,t3.idPla FROM t4 LEFT JOIN t3 ON t3.cod_asig=t4.fill AND t3.estat='S' AND t3.dni_pasaporte='1234' AND t3.idPla=1 ;

drop table t1,t2,t3,test.t4;

#
# Test of IS NULL on AUTO_INCREMENT with LEFT JOIN
#

CREATE TABLE t1 (
  id smallint(5) unsigned NOT NULL auto_increment,
  name char(60) DEFAULT '' NOT NULL,
  PRIMARY KEY (id)
);
INSERT INTO t1 VALUES (1,'Antonio Paz');
INSERT INTO t1 VALUES (2,'Lilliana Angelovska');
INSERT INTO t1 VALUES (3,'Thimble Smith');

CREATE TABLE t2 (
  id smallint(5) unsigned NOT NULL auto_increment,
  owner smallint(5) unsigned DEFAULT '0' NOT NULL,
  name char(60),
  PRIMARY KEY (id)
);
INSERT INTO t2 VALUES (1,1,'El Gato');
INSERT INTO t2 VALUES (2,1,'Perrito');
INSERT INTO t2 VALUES (3,3,'Happy');

--sorted_result
select t1.name, t2.name, t2.id from t1 left join t2 on (t1.id = t2.owner);
select t1.name, t2.name, t2.id from t1 left join t2 on (t1.id = t2.owner) where t2.id is null;
explain select t1.name, t2.name, t2.id from t1 left join t2 on (t1.id = t2.owner) where t2.id is null;
explain select t1.name, t2.name, t2.id from t1 left join t2 on (t1.id = t2.owner) where t2.name is null;
select count(*) from t1 left join t2 on (t1.id = t2.owner);

--sorted_result
select t1.name, t2.name, t2.id from t2 right join t1 on (t1.id = t2.owner);
select t1.name, t2.name, t2.id from t2 right join t1 on (t1.id = t2.owner) where t2.id is null;
explain select t1.name, t2.name, t2.id from t2 right join t1 on (t1.id = t2.owner) where t2.id is null;
explain select t1.name, t2.name, t2.id from t2 right join t1 on (t1.id = t2.owner) where t2.name is null;
select count(*) from t2 right join t1 on (t1.id = t2.owner);

--sorted_result
select t1.name, t2.name, t2.id,t3.id from t2 right join t1 on (t1.id = t2.owner) left join t1 as t3 on t3.id=t2.owner;
select t1.name, t2.name, t2.id,t3.id from t1 right join t2 on (t1.id = t2.owner) right join t1 as t3 on t3.id=t2.owner;
select t1.name, t2.name, t2.id, t2.owner, t3.id from t1 left join t2 on (t1.id = t2.owner) right join t1 as t3 on t3.id=t2.owner;

drop table t1,t2;

create table t1 (id int not null, str char(10), index(str));
insert into t1 values (1, null), (2, null), (3, "foo"), (4, "bar");
select * from t1 where str is not null order by id;
select * from t1 where str is null;
drop table t1;

#
# Test wrong LEFT JOIN query
#

CREATE TABLE t1 (
  t1_id bigint(21) NOT NULL auto_increment,
  PRIMARY KEY (t1_id)
);
CREATE TABLE t2 (
  t2_id bigint(21) NOT NULL auto_increment,
  PRIMARY KEY (t2_id)
);
CREATE TABLE t3 (
  t3_id bigint(21) NOT NULL auto_increment,
  PRIMARY KEY (t3_id)
);
CREATE TABLE t4 (
  seq_0_id bigint(21) DEFAULT '0' NOT NULL,
  seq_1_id bigint(21) DEFAULT '0' NOT NULL,
  KEY seq_0_id (seq_0_id),
  KEY seq_1_id (seq_1_id)
);
CREATE TABLE t5 (
  seq_0_id bigint(21) DEFAULT '0' NOT NULL,
  seq_1_id bigint(21) DEFAULT '0' NOT NULL,
  KEY seq_1_id (seq_1_id),
  KEY seq_0_id (seq_0_id)
);

insert into t1 values (1);
insert into t2 values (1);
insert into t3 values (1);
insert into t4 values (1,1);
insert into t5 values (1,1);

--error 1054
explain select * from t3 left join t4 on t4.seq_1_id = t2.t2_id left join t1 on t1.t1_id = t4.seq_0_id left join t5 on t5.seq_0_id = t1.t1_id left join t2 on t2.t2_id = t5.seq_1_id where t3.t3_id = 23;

drop table t1,t2,t3,t4,t5;

#
# Another LEFT JOIN problem
# (The problem was that the result changed when we added ORDER BY)
#

create table t1 (n int, m int, o int, key(n));
create table t2 (n int not null, m int, o int, primary key(n));
insert into t1 values (1, 2, 11), (1, 2, 7), (2, 2, 8), (1,2,9),(1,3,9);
insert into t2 values (1, 2, 3),(2, 2, 8), (4,3,9),(3,2,10);
select t1.*, t2.* from t1 left join t2 on t1.n = t2.n and
t1.m = t2.m where t1.n = 1;
select t1.*, t2.* from t1 left join t2 on t1.n = t2.n and
t1.m = t2.m where t1.n = 1 order by t1.o,t1.m;
drop table t1,t2;

# Test bug with NATURAL join:

CREATE TABLE t1 (id1 INT NOT NULL PRIMARY KEY, dat1 CHAR(1), id2 INT);   
INSERT INTO t1 VALUES (1,'a',1);
INSERT INTO t1 VALUES (2,'b',1);
INSERT INTO t1 VALUES (3,'c',2);

CREATE TABLE t2 (id2 INT NOT NULL PRIMARY KEY, dat2 CHAR(1));   
INSERT INTO t2 VALUES (1,'x');
INSERT INTO t2 VALUES (2,'y');
INSERT INTO t2 VALUES (3,'z');

SELECT t2.id2 FROM t2 LEFT OUTER JOIN t1 ON t1.id2 = t2.id2 WHERE id1 IS NULL;
SELECT t2.id2 FROM t2 NATURAL LEFT OUTER JOIN t1 WHERE id1 IS NULL;

drop table t1,t2;

create table t1 ( color varchar(20), name varchar(20) );
insert into t1 values ( 'red', 'apple' );
insert into t1 values ( 'yellow', 'banana' );
insert into t1 values ( 'green', 'lime' );
insert into t1 values ( 'black', 'grape' );
insert into t1 values ( 'blue', 'blueberry' );
create table t2 ( count int, color varchar(20) );
insert into t2 values (10, 'green');
insert into t2 values (5, 'black');
insert into t2 values (15, 'white');
insert into t2 values (7, 'green');
select * from t1;
select * from t2;
select * from t2 natural join t1;
select t2.count, t1.name from t2 natural join t1;
select t2.count, t1.name from t2 inner join t1 using (color);
drop table t1;
drop table t2;

#
# Test of LEFT JOIN + GROUP FUNCTIONS within functions:
#

CREATE TABLE t1 (
  pcode varchar(8) DEFAULT '' NOT NULL
);
INSERT INTO t1 VALUES ('kvw2000'),('kvw2001'),('kvw3000'),('kvw3001'),('kvw3002'),('kvw3500'),('kvw3501'),('kvw3502'),('kvw3800'),('kvw3801'),('kvw3802'),('kvw3900'),('kvw3901'),('kvw3902'),('kvw4000'),('kvw4001'),('kvw4002'),('kvw4200'),('kvw4500'),('kvw5000'),('kvw5001'),('kvw5500'),('kvw5510'),('kvw5600'),('kvw5601'),('kvw6000'),('klw1000'),('klw1020'),('klw1500'),('klw2000'),('klw2001'),('klw2002'),('kld2000'),('klw2500'),('kmw1000'),('kmw1500'),('kmw2000'),('kmw2001'),('kmw2100'),('kmw3000'),('kmw3200');
CREATE TABLE t2 (
  pcode varchar(8) DEFAULT '' NOT NULL,
  KEY pcode (pcode)
);
INSERT INTO t2 VALUES ('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw2000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3000'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw3500'),('kvw6000'),('kvw6000'),('kld2000');

SELECT t1.pcode, IF(ISNULL(t2.pcode), 0, COUNT(*)) AS count FROM t1
LEFT JOIN t2 ON t1.pcode = t2.pcode GROUP BY t1.pcode;
SELECT SQL_BIG_RESULT t1.pcode, IF(ISNULL(t2.pcode), 0, COUNT(*)) AS count FROM t1 LEFT JOIN t2 ON t1.pcode = t2.pcode GROUP BY t1.pcode;
drop table t1,t2;

#
# Another left join problem
#

CREATE TABLE t1 (
  id int(11),
  pid int(11),
  rep_del tinyint(4),
  KEY id (id),
  KEY pid (pid)
);
INSERT INTO t1 VALUES (1,NULL,NULL);
INSERT INTO t1 VALUES (2,1,NULL);
select * from t1 LEFT JOIN t1 t2 ON (t1.id=t2.pid) AND t2.rep_del IS NULL;
create index rep_del ON t1(rep_del);
select * from t1 LEFT JOIN t1 t2 ON (t1.id=t2.pid) AND t2.rep_del IS NULL;
drop table t1;

CREATE TABLE t1 (
  id int(11) DEFAULT '0' NOT NULL,
  name tinytext DEFAULT '' NOT NULL,
  UNIQUE id (id)
);
INSERT INTO t1 VALUES (1,'yes'),(2,'no');
CREATE TABLE t2 (
  id int(11) DEFAULT '0' NOT NULL,
  idx int(11) DEFAULT '0' NOT NULL,
  UNIQUE id (id,idx)
);
INSERT INTO t2 VALUES (1,1);
explain SELECT * from t1 left join t2 on t1.id=t2.id where t2.id IS NULL;
SELECT * from t1 left join t2 on t1.id=t2.id where t2.id IS NULL;
drop table t1,t2;

#
# Test problem with using key_column= constant in ON and WHERE
#
create table t1 (bug_id mediumint, reporter mediumint);
create table t2 (bug_id mediumint, who mediumint, index(who));
insert into t2 values (1,1),(1,2);
insert into t1 values (1,1),(2,1);
SELECT * FROM t1 LEFT JOIN t2 ON (t1.bug_id =  t2.bug_id AND  t2.who = 2) WHERE  (t1.reporter = 2 OR t2.who = 2);
drop table t1,t2;

#
# Test problem with LEFT JOIN

create table t1 (fooID smallint unsigned auto_increment, primary key (fooID));
create table t2 (fooID smallint unsigned not null, barID smallint unsigned not null, primary key (fooID,barID));
insert into t1 (fooID) values (10),(20),(30);
insert into t2 values (10,1),(20,2),(30,3);
explain select * from t2 left join t1 on t1.fooID = t2.fooID and t1.fooID = 30;
select * from t2 left join t1 on t1.fooID = t2.fooID and t1.fooID = 30;
--sorted_result
select * from t2 left join t1 ignore index(primary) on t1.fooID = t2.fooID and t1.fooID = 30;
drop table t1,t2;

create table t1 (i int);
create table t2 (i int);
create table t3 (i int);
insert into t1 values(1),(2);
insert into t2 values(2),(3);
insert into t3 values(2),(4);
--sorted_result
select * from t1 natural left join t2 natural left join t3;
select * from t1 natural left join t2 where (t2.i is not null)=0;
--sorted_result
select * from t1 natural left join t2 where (t2.i is not null) is not null;
select * from t1 natural left join t2 where (i is not null)=0;
--sorted_result
select * from t1 natural left join t2 where (i is not null) is not null;
drop table t1,t2,t3;

#
# Test of USING
#
create table t1 (f1 integer,f2 integer,f3 integer);
create table t2 (f2 integer,f4 integer);
create table t3 (f3 integer,f5 integer);
select * from t1
         left outer join t2 using (f2)
         left outer join t3 using (f3);
drop table t1,t2,t3;

create table t1 (a1 int, a2 int);
create table t2 (b1 int not null, b2 int);
create table t3 (c1 int, c2 int);

insert into t1 values (1,2), (2,2), (3,2);
insert into t2 values (1,3), (2,3);
insert into t3 values (2,4),        (3,4);

select * from t1 left join t2  on  b1 = a1 left join t3  on  c1 = a1  and  b1 is null;
explain select * from t1 left join t2  on  b1 = a1 left join t3  on  c1 = a1  and  b1 is null;

drop table t1, t2, t3;

# Test for BUG#8711 '<=>' was considered to be a NULL-rejecting predicate.
create table t1 (
  a int(11),
  b char(10),
  key (a)
);
insert into t1 (a) values (1),(2),(3),(4);
create table t2 (a int);

select * from t1 left join t2 on t1.a=t2.a where not (t2.a <=> t1.a);
select * from t1 left join t2 on t1.a=t2.a having not (t2.a <=> t1.a);
drop table t1,t2;

# Test for BUG#5088

create table t1 (
  match_id tinyint(3) unsigned not null auto_increment,
  home tinyint(3) unsigned default '0',
  unique key match_id (match_id),
  key match_id_2 (match_id)
);

insert into t1 values("1", "2");

create table t2 (
  player_id tinyint(3) unsigned default '0',
  match_1_h tinyint(3) unsigned default '0',
  key player_id (player_id)
);

insert into t2 values("1", "5");
insert into t2 values("2", "9");
insert into t2 values("3", "3");
insert into t2 values("4", "7");
insert into t2 values("5", "6");
insert into t2 values("6", "8");
insert into t2 values("7", "4");
insert into t2 values("8", "12");
insert into t2 values("9", "11");
insert into t2 values("10", "10");

explain select s.*, '*', m.*, (s.match_1_h - m.home) UUX from 
  (t2 s left join t1 m on m.match_id = 1) 
  order by m.match_id desc;
  
explain select s.*, '*', m.*, (s.match_1_h - m.home) UUX from 
  (t2 s left join t1 m on m.match_id = 1) 
  order by UUX desc;

select s.*, '*', m.*, (s.match_1_h - m.home) UUX from 
  (t2 s left join t1 m on m.match_id = 1) 
  order by UUX desc;

explain select s.*, '*', m.*, (s.match_1_h - m.home) UUX from 
  t2 s straight_join t1 m where m.match_id = 1 
  order by UUX desc;

select s.*, '*', m.*, (s.match_1_h - m.home) UUX from 
  t2 s straight_join t1 m where m.match_id = 1 
  order by UUX desc;

drop table t1, t2;

# Tests for bugs #6307 and 6460

create table t1 (a int, b int, unique index idx (a, b));
create table t2 (a int, b int, c int, unique index idx (a, b));

insert into t1 values (1, 10), (1,11), (2,10), (2,11);
insert into t2 values (1,10,3);

select t1.a, t1.b, t2.c from t1 left join t2
                                on t1.a=t2.a and t1.b=t2.b and t2.c=3
   where t1.a=1 and t2.c is null;

drop table t1, t2;

CREATE TABLE t1 (
  ts_id bigint(20) default NULL,
  inst_id tinyint(4) default NULL,
  flag_name varchar(64) default NULL,
  flag_value text,
  UNIQUE KEY ts_id (ts_id,inst_id,flag_name)
) ENGINE=MyISAM DEFAULT CHARSET=utf8;

CREATE TABLE t2 (
  ts_id bigint(20) default NULL,
  inst_id tinyint(4) default NULL,
  flag_name varchar(64) default NULL,
  flag_value text,
  UNIQUE KEY ts_id (ts_id,inst_id,flag_name)
) ENGINE=MyISAM DEFAULT CHARSET=utf8;

INSERT INTO t1 VALUES
  (111056548820001, 0, 'flag1', NULL),
  (111056548820001, 0, 'flag2', NULL),
  (2, 0, 'other_flag', NULL);

INSERT INTO t2 VALUES
  (111056548820001, 3, 'flag1', 'sss');

SELECT t1.flag_name,t2.flag_value 
  FROM t1 LEFT JOIN t2 
          ON (t1.ts_id = t2.ts_id AND t1.flag_name = t2.flag_name AND
              t2.inst_id = 3) 
  WHERE t1.inst_id = 0 AND t1.ts_id=111056548820001 AND
        t2.flag_value IS  NULL;

DROP TABLE t1,t2;

CREATE TABLE t1 (
  id int(11) unsigned NOT NULL auto_increment,
  text_id int(10) unsigned default NULL,
  PRIMARY KEY  (id)
);

INSERT INTO t1 VALUES("1", "0");
INSERT INTO t1 VALUES("2", "10");

CREATE TABLE t2 (
  text_id char(3) NOT NULL default '',
  language_id char(3) NOT NULL default '',
  text_data text,
  PRIMARY KEY  (text_id,language_id)
);

INSERT INTO t2 VALUES("0", "EN", "0-EN");
INSERT INTO t2 VALUES("0", "SV", "0-SV");
INSERT INTO t2 VALUES("10", "EN", "10-EN");
INSERT INTO t2 VALUES("10", "SV", "10-SV");
SELECT t1.id, t1.text_id, t2.text_data
  FROM t1 LEFT JOIN t2
               ON t1.text_id = t2.text_id
                  AND t2.language_id = 'SV'
  WHERE (t1.id LIKE '%' OR t2.text_data LIKE '%');

DROP TABLE t1, t2;

# Test for bug #5896  

CREATE TABLE t0 (a0 int PRIMARY KEY);
CREATE TABLE t1 (a1 int PRIMARY KEY);
CREATE TABLE t2 (a2 int);
CREATE TABLE t3 (a3 int);
INSERT INTO t0 VALUES (1);
INSERT INTO t1 VALUES (1);
INSERT INTO t2 VALUES (1), (2);
INSERT INTO t3 VALUES (1), (2);

SELECT * FROM t1 LEFT JOIN t2 ON a1=0;
EXPLAIN SELECT * FROM t1 LEFT JOIN t2 ON a1=0;
SELECT * FROM t1 LEFT JOIN (t2,t3) ON a1=0;
EXPLAIN SELECT * FROM t1 LEFT JOIN (t2,t3) ON a1=0;
SELECT * FROM t0, t1 LEFT JOIN (t2,t3) ON a1=0 WHERE a0=a1;
EXPLAIN SELECT * FROM t0, t1 LEFT JOIN (t2,t3) ON a1=0 WHERE a0=a1;

INSERT INTO t0 VALUES (0);
INSERT INTO t1 VALUES (0);
SELECT * FROM t0, t1 LEFT JOIN (t2,t3) ON a1=5 WHERE a0=a1 AND a0=1;
EXPLAIN SELECT * FROM t0, t1 LEFT JOIN (t2,t3) ON a1=5 WHERE a0=a1 AND a0=1;

# Test for BUG#4480
drop table t1,t2;
create table t1 (a int, b int);
insert into t1 values (1,1),(2,2),(3,3);
create table t2 (a int, b int);
insert into t2 values (1,1), (2,2);

select * from t2 right join t1 on t2.a=t1.a;
select straight_join * from t2 right join t1 on t2.a=t1.a;

DROP TABLE t0,t1,t2,t3;

#
# Test for bug #9017: left join mistakingly converted to inner join
#

CREATE TABLE t1 (a int PRIMARY KEY, b int);
CREATE TABLE t2 (a int PRIMARY KEY, b int);

INSERT INTO t1 VALUES (1,1), (2,1), (3,1), (4,2);
INSERT INTO t2 VALUES (1,2), (2,2);

SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.a;
SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.a WHERE t1.b=1;
SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.a
  WHERE t1.b=1 XOR (NOT ISNULL(t2.a) AND t2.b=1);
SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.a WHERE not(0+(t1.a=30 and t2.b=1));

DROP TABLE t1,t2;

# Bug #8681: Bad warning message when group_concat() exceeds max length
set group_concat_max_len=5;
create table t1 (a int, b varchar(20));
create table t2 (a int, c varchar(20));
insert into t1 values (1,"aaaaaaaaaa"),(2,"bbbbbbbbbb");
insert into t2 values (1,"cccccccccc"),(2,"dddddddddd");
select group_concat(t1.b,t2.c) from t1 left join t2 using(a) group by t1.a;
select group_concat(t1.b,t2.c) from t1 inner join t2 using(a) group by t1.a;
select group_concat(t1.b,t2.c) from t1 left join t2 using(a) group by a;
select group_concat(t1.b,t2.c) from t1 inner join t2 using(a) group by a;
drop table t1, t2;
set group_concat_max_len=default;

# End of 4.1 tests

#
# BUG#10162 - ON is merged with WHERE, left join is convered to a regular join
#
create table t1 (gid smallint(5) unsigned not null, x int(11) not null, y int(11) not null, art int(11) not null, primary key  (gid,x,y));
insert t1 values (1, -5, -8, 2), (1, 2, 2, 1), (1, 1, 1, 1);
create table t2 (gid smallint(5) unsigned not null, x int(11) not null, y int(11) not null, id int(11) not null, primary key  (gid,id,x,y), key id (id));
insert t2 values (1, -5, -8, 1), (1, 1, 1, 1), (1, 2, 2, 1);
create table t3 ( set_id smallint(5) unsigned not null, id tinyint(4) unsigned not null, name char(12) not null, primary key  (id,set_id));
insert t3 values (0, 1, 'a'), (1, 1, 'b'), (0, 2, 'c'), (1, 2, 'd'), (1, 3, 'e'), (1, 4, 'f'), (1, 5, 'g'), (1, 6, 'h');
explain select name from t1 left join t2 on t1.x = t2.x and t1.y = t2.y
left join t3 on t1.art = t3.id where t2.id =1 and t2.x = -5 and t2.y =-8
and t1.gid =1 and t2.gid =1 and t3.set_id =1;
drop tables t1,t2,t3;

#
# Test for bug #9938: invalid conversion from outer join to inner join 
# for queries containing indirect reference in WHERE clause
#

CREATE TABLE t1 (EMPNUM INT, GRP INT);
INSERT INTO t1 VALUES (0, 10);
INSERT INTO t1 VALUES (2, 30);

CREATE TABLE t2 (EMPNUM INT, NAME CHAR(5));
INSERT INTO t2 VALUES (0, 'KERI');
INSERT INTO t2 VALUES (9, 'BARRY');

CREATE VIEW v1 AS
SELECT COALESCE(t2.EMPNUM,t1.EMPNUM) AS EMPNUM, NAME, GRP
  FROM t2 LEFT OUTER JOIN t1 ON t2.EMPNUM=t1.EMPNUM;

SELECT * FROM v1;
SELECT * FROM v1 WHERE EMPNUM < 10;

DROP VIEW v1;
DROP TABLE t1,t2;

#
# Test for bug #11285: false Item_equal on expression in outer join
# 

CREATE TABLE t1 (c11 int);
CREATE TABLE t2 (c21 int);
INSERT INTO t1 VALUES (30), (40), (50);
INSERT INTO t2 VALUES (300), (400), (500);
SELECT * FROM t1 LEFT JOIN t2 ON (c11=c21 AND c21=30) WHERE c11=40;
DROP TABLE t1, t2;
#
# Test for bugs
# #12101: erroneously applied outer join elimination in case of WHERE NOT BETWEEN
# #12102: erroneously missing outer join elimination in case of WHERE IN/IF
#

CREATE TABLE t1 (a int PRIMARY KEY, b int);
CREATE TABLE t2 (a int PRIMARY KEY, b int);

INSERT INTO t1 VALUES (1,2), (2,1), (3,2), (4,3), (5,6), (6,5), (7,8), (8,7), (9,10);
INSERT INTO t2 VALUES (3,0), (4,1), (6,4), (7,5);

SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t2.b <= t1.a AND t1.a <= t1.b;
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t1.a BETWEEN t2.b AND t1.b;
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE NOT(t1.a NOT BETWEEN t2.b AND t1.b);

SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t2.b > t1.a OR t1.a > t1.b;
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t1.a NOT BETWEEN t2.b AND t1.b;
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE NOT(t1.a BETWEEN t2.b AND t1.b);

SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t1.a = t2.a OR t2.b > t1.a OR t1.a > t1.b;
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE NOT(t1.a != t2.a AND t1.a BETWEEN t2.b AND t1.b);

SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t1.a = t2.a AND (t2.b > t1.a OR t1.a > t1.b);
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE NOT(t1.a != t2.a OR t1.a BETWEEN t2.b AND t1.b);

SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t1.a = t2.a OR t1.a = t2.b;
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t1.a IN(t2.a, t2.b);
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE NOT(t1.a NOT IN(t2.a, t2.b));

SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t1.a != t1.b AND t1.a != t2.b;
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t1.a NOT IN(t1.b, t2.b);
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE NOT(t1.a IN(t1.b, t2.b));

SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t2.a != t2.b OR (t1.a != t2.a AND t1.a != t2.b);
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE NOT(t2.a = t2.b AND t1.a IN(t2.a, t2.b));

SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t2.a != t2.b AND t1.a != t1.b AND t1.a != t2.b;
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE NOT(t2.a = t2.b OR t1.a IN(t1.b, t2.b));

EXPLAIN SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t1.a = t2.a OR t1.a = t2.b;
EXPLAIN SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t1.a IN(t2.a, t2.b);
EXPLAIN SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.a WHERE t1.a > IF(t1.a = t2.b-2, t2.b, t2.b-1);

DROP TABLE t1,t2;

#
# Test for bug #17164: ORed FALSE blocked conversion of outer join into join
#

# Test case moved to join_outer_innodb

#
# Bug 19396: LEFT OUTER JOIN over views in curly braces 
# 
--disable_warnings
DROP VIEW IF EXISTS v1,v2;
DROP TABLE IF EXISTS t1,t2;
--enable_warnings

CREATE TABLE t1 (a int);
CREATE table t2 (b int);
INSERT INTO t1 VALUES (1), (2), (3), (4), (1), (1), (3);
INSERT INTO t2 VALUES (2), (3);

CREATE VIEW v1 AS SELECT a FROM t1 JOIN t2 ON t1.a=t2.b;
CREATE VIEW v2 AS SELECT b FROM t2 JOIN t1 ON t2.b=t1.a;

SELECT v1.a, v2. b 
  FROM v1 LEFT OUTER JOIN v2 ON (v1.a=v2.b) AND (v1.a >= 3)
    GROUP BY v1.a;
SELECT v1.a, v2. b 
  FROM { OJ v1 LEFT OUTER JOIN v2 ON (v1.a=v2.b) AND (v1.a >= 3) }
    GROUP BY v1.a;

DROP VIEW v1,v2;
DROP TABLE t1,t2;

#
# Bug 19816: LEFT OUTER JOIN with constant ORed predicates in WHERE clause
# 

CREATE TABLE t1 (a int);
CREATE TABLE t2 (b int);
INSERT INTO t1 VALUES (1), (2), (3), (4);
INSERT INTO t2 VALUES (2), (3);

--sorted_result
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.b WHERE (1=1);

--sorted_result
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.b WHERE (1 OR 1);
--sorted_result
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.b WHERE (0 OR 1);
--sorted_result
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.b WHERE (1=1 OR 2=2);
--sorted_result
SELECT * FROM t1 LEFT JOIN t2 ON t1.a = t2.b WHERE (1=1 OR 1=0);

DROP TABLE t1,t2;

#
# Bug 26017: LEFT OUTER JOIN over two constant tables and 
#            a case-insensitive comparison predicate field=const 
# 

CREATE TABLE t1 (
  f1 varchar(16) collate latin1_swedish_ci PRIMARY KEY,
  f2 varchar(16) collate latin1_swedish_ci
);
CREATE TABLE t2 (
  f1 varchar(16) collate latin1_swedish_ci PRIMARY KEY,
  f3 varchar(16) collate latin1_swedish_ci
);

INSERT INTO t1 VALUES ('bla','blah');
INSERT INTO t2 VALUES ('bla','sheep');

SELECT * FROM t1 JOIN t2 USING(f1) WHERE f1='Bla';
SELECT * FROM t1 LEFT JOIN t2 USING(f1) WHERE f1='bla';
SELECT * FROM t1 LEFT JOIN t2 USING(f1) WHERE f1='Bla';

DROP TABLE t1,t2;

#
# Bug 28188: 'not exists' optimization for outer joins 
#
 
CREATE TABLE t1 (id int PRIMARY KEY, a varchar(8));
CREATE TABLE t2 (id int NOT NULL, b int NOT NULL, INDEX idx(id));
INSERT INTO t1 VALUES
  (1,'aaaaaaa'), (5,'eeeeeee'), (4,'ddddddd'), (2,'bbbbbbb'), (3,'ccccccc');
INSERT INTO t2 VALUES
  (3,10), (2,20), (5,30), (3,20), (5,10), (3,40), (3,30), (2,10), (2,40);

EXPLAIN
SELECT t1.id, a FROM t1 LEFT JOIN t2 ON t1.id=t2.id WHERE t2.b IS NULL;

flush status;
SELECT t1.id, a FROM t1 LEFT JOIN t2 ON t1.id=t2.id WHERE t2.b IS NULL;
show status like 'Handler_read%';

DROP TABLE t1,t2;

#
# Bug 28571: outer join with false on condition over constant tables 
#

CREATE TABLE t1 (c int  PRIMARY KEY, e int NOT NULL);
INSERT INTO t1 VALUES (1,0), (2,1);
CREATE TABLE t2 (d int PRIMARY KEY);
INSERT INTO t2 VALUES (1), (2), (3);

EXPLAIN SELECT * FROM t1 LEFT JOIN t2 ON e<>0 WHERE c=1 AND d IS NULL;
SELECT * FROM t1 LEFT JOIN t2 ON e<>0 WHERE c=1 AND d IS NULL;
SELECT * FROM t1 LEFT JOIN t2 ON e<>0 WHERE c=1 AND d<=>NULL;

DROP TABLE t1,t2;

--echo #
--echo # Bug#47650: using group by with rollup without indexes returns incorrect 
--echo # results with where
--echo #
CREATE TABLE t1 ( a INT );
INSERT INTO t1 VALUES (1);

CREATE TABLE t2 ( a INT, b INT );
INSERT INTO t2 VALUES (1, 1),(1, 2),(1, 3),(2, 4),(2, 5);

EXPLAIN
SELECT t1.a, COUNT( t2.b ), SUM( t2.b ), MAX( t2.b )
FROM t1 LEFT JOIN t2 USING( a )
GROUP BY t1.a WITH ROLLUP;

SELECT t1.a, COUNT( t2.b ), SUM( t2.b ), MAX( t2.b )
FROM t1 LEFT JOIN t2 USING( a )
GROUP BY t1.a WITH ROLLUP;

EXPLAIN
SELECT t1.a, COUNT( t2.b ), SUM( t2.b ), MAX( t2.b )
FROM t1 JOIN t2 USING( a )
GROUP BY t1.a WITH ROLLUP;

SELECT t1.a, COUNT( t2.b ), SUM( t2.b ), MAX( t2.b )
FROM t1 JOIN t2 USING( a )
GROUP BY t1.a WITH ROLLUP;

DROP TABLE t1, t2;

--echo #
--echo # Bug#51598 Inconsistent behaviour with a COALESCE statement inside an IN comparison
--echo #
CREATE TABLE t1(f1 INT, f2 INT, f3 INT);
INSERT INTO t1 VALUES (1, NULL, 3);
CREATE TABLE t2(f1 INT, f2 INT);
INSERT INTO t2 VALUES (2, 1);

EXPLAIN EXTENDED SELECT * FROM t1 LEFT JOIN t2 ON t1.f2 = t2.f2
WHERE (COALESCE(t1.f1, t2.f1), f3) IN ((1, 3), (2, 2));

SELECT * FROM t1 LEFT JOIN t2 ON t1.f2 = t2.f2
WHERE (COALESCE(t1.f1, t2.f1), f3) IN ((1, 3), (2, 2));

DROP TABLE t1, t2;

--echo #
--echo # Bug#52357: Assertion failed: join->best_read in greedy_search 
--echo # optimizer_search_depth=0
--echo #
CREATE TABLE t1( a INT );

INSERT INTO t1 VALUES (1),(2);
SET optimizer_search_depth = 0;

--echo # Should not core dump on query preparation
EXPLAIN
SELECT 1
FROM t1 tt3 LEFT  OUTER JOIN t1 tt4 ON 1
            LEFT  OUTER JOIN t1 tt5 ON 1
            LEFT  OUTER JOIN t1 tt6 ON 1
            LEFT  OUTER JOIN t1 tt7 ON 1
            LEFT  OUTER JOIN t1 tt8 ON 1
            RIGHT OUTER JOIN t1 tt2 ON 1
            RIGHT OUTER JOIN t1 tt1 ON 1
            STRAIGHT_JOIN    t1 tt9 ON 1;

SET optimizer_search_depth = DEFAULT;
DROP TABLE t1;

--echo #
--echo # Bug#46091 STRAIGHT_JOIN + RIGHT JOIN returns different result
--echo #
CREATE TABLE t1 (f1 INT NOT NULL);
INSERT INTO t1 VALUES (9),(0);

CREATE TABLE t2 (f1 INT NOT NULL);
INSERT INTO t2 VALUES
(5),(3),(0),(3),(1),(0),(1),(7),(1),(0),(0),(8),(4),(9),(0),(2),(0),(8),(5),(1);

SELECT STRAIGHT_JOIN COUNT(*) FROM t1 TA1
RIGHT JOIN t2 TA2 JOIN t2 TA3 ON TA2.f1 ON TA3.f1;

EXPLAIN SELECT STRAIGHT_JOIN COUNT(*) FROM t1 TA1
RIGHT JOIN t2 TA2 JOIN t2 TA3 ON TA2.f1 ON TA3.f1;

DROP TABLE t1, t2;

--echo #
--echo # Bug#48971 Segfault in add_found_match_trig_cond () at sql_select.cc:5990
--echo #
CREATE TABLE t1(f1 INT, PRIMARY KEY (f1));
INSERT INTO t1 VALUES (1),(2);

EXPLAIN EXTENDED SELECT STRAIGHT_JOIN jt1.f1 FROM t1 AS jt1
 LEFT JOIN t1 AS jt2
  RIGHT JOIN t1 AS jt3
    JOIN t1 AS jt4 ON 1
   LEFT JOIN t1 AS jt5 ON 1
  ON 1
  RIGHT JOIN t1 AS jt6 ON jt6.f1
 ON 1;

EXPLAIN EXTENDED SELECT STRAIGHT_JOIN jt1.f1 FROM t1 AS jt1
 RIGHT JOIN t1 AS jt2
  RIGHT JOIN t1 AS jt3
    JOIN t1 AS jt4 ON 1
   LEFT JOIN t1 AS jt5 ON 1
  ON 1
  RIGHT JOIN t1 AS jt6 ON jt6.f1
 ON 1;

DROP TABLE t1;

--echo #
--echo # Bug#57688 Assertion `!table || (!table->write_set || bitmap_is_set(table->write_set, field
--echo #

CREATE TABLE t1 (f1 INT NOT NULL, PRIMARY KEY (f1));
CREATE TABLE t2 (f1 INT NOT NULL, f2 INT NOT NULL, PRIMARY KEY (f1, f2));

INSERT INTO t1 VALUES (4);
INSERT INTO t2 VALUES (3, 3);
INSERT INTO t2 VALUES (7, 7);

EXPLAIN SELECT * FROM t1 LEFT JOIN t2 ON t2.f1 = t1.f1
WHERE t1.f1 = 4
GROUP BY t2.f1, t2.f2;

SELECT * FROM t1 LEFT JOIN t2 ON t2.f1 = t1.f1
WHERE t1.f1 = 4
GROUP BY t2.f1, t2.f2;

EXPLAIN SELECT * FROM t1 LEFT JOIN t2 ON t2.f1 = t1.f1
WHERE t1.f1 = 4 AND t2.f1 IS NOT NULL AND t2.f2 IS NOT NULL
GROUP BY t2.f1, t2.f2;

SELECT * FROM t1 LEFT JOIN t2 ON t2.f1 = t1.f1
WHERE t1.f1 = 4 AND t2.f1 IS NOT NULL AND t2.f2 IS NOT NULL
GROUP BY t2.f1, t2.f2;

DROP TABLE t1,t2;

--echo #
--echo # Bug#57034 incorrect OUTER JOIN result when joined on unique key
--echo #

CREATE TABLE t1 (pk INT PRIMARY KEY, 
                 col_int INT, 
                 col_int_unique INT UNIQUE KEY);
INSERT INTO t1 VALUES (1,NULL,2), (2,0,0);

CREATE TABLE t2 (pk INT PRIMARY KEY,
                 col_int INT,
                 col_int_unique INT UNIQUE KEY);
INSERT INTO t2 VALUES (1,0,1), (2,0,2);

EXPLAIN
SELECT * FROM t1 LEFT JOIN t2
  ON t1.col_int_unique = t2.col_int_unique AND t1.col_int = t2.col_int 
  WHERE t1.pk=1;

SELECT * FROM t1 LEFT JOIN t2
  ON t1.col_int_unique = t2.col_int_unique AND t1.col_int = t2.col_int 
  WHERE t1.pk=1;

DROP TABLE t1,t2;

--echo #
--echo # Bug#48046 Server incorrectly processing JOINs on NULL values
--echo #

# bug#48046 is a duplicate of bug#57034

CREATE TABLE `BB` (
  `pk` int(11) NOT NULL AUTO_INCREMENT,
  `time_key` time DEFAULT NULL,
  `varchar_key` varchar(1) DEFAULT NULL,
  `varchar_nokey` varchar(1) DEFAULT NULL,
  PRIMARY KEY (`pk`),
  KEY `time_key` (`time_key`),
  KEY `varchar_key` (`varchar_key`)
) ENGINE=MyISAM AUTO_INCREMENT=11 DEFAULT CHARSET=latin1;

INSERT INTO `BB` VALUES (10,'18:27:58',NULL,NULL);

SELECT table1.time_key AS field1, table2.pk 
FROM BB table1  LEFT JOIN BB table2 
 ON table2.varchar_nokey = table1.varchar_key
 HAVING field1;

DROP TABLE BB;

--echo #
--echo # Bug#49600 Server incorrectly processing RIGHT JOIN with 
--echo #           constant WHERE clause and no index
--echo #

# bug#49600 is a duplicate of bug#57034

CREATE TABLE `BB` (
  `col_datetime_key` datetime DEFAULT NULL,
  `col_varchar_key` varchar(1) DEFAULT NULL,
  `col_varchar_nokey` varchar(1) DEFAULT NULL,
  KEY `col_datetime_key` (`col_datetime_key`),
  KEY `col_varchar_key` (`col_varchar_key`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1;

INSERT INTO `BB` VALUES ('1900-01-01 00:00:00',NULL,NULL);

SELECT table1.col_datetime_key  
FROM BB table1 RIGHT JOIN BB table2 
 ON table2 .col_varchar_nokey = table1.col_varchar_key
 WHERE 7;

# Disable keys, and we get incorrect result for the same query
ALTER TABLE BB DISABLE KEYS;

SELECT table1.col_datetime_key  
FROM BB table1 RIGHT JOIN BB table2
 ON table2 .col_varchar_nokey = table1.col_varchar_key
 WHERE 7;

DROP TABLE BB;


--echo #
--echo # Bug#58490: Incorrect result in multi level OUTER JOIN
--echo # in combination with IS NULL
--echo #

CREATE TABLE t1 (i INT NOT NULL);
INSERT INTO t1 VALUES (0),    (2),(3),(4);
CREATE TABLE t2 (i INT NOT NULL);
INSERT INTO t2 VALUES (0),(1),    (3),(4);
CREATE TABLE t3 (i INT NOT NULL);
INSERT INTO t3 VALUES (0),(1),(2),    (4);
CREATE TABLE t4 (i INT NOT NULL);
INSERT INTO t4 VALUES (0),(1),(2),(3)   ;

--sorted_result
SELECT * FROM
 t1 LEFT JOIN
 ( t2 LEFT JOIN
   ( t3 LEFT JOIN
     t4
     ON t4.i = t3.i
   )
   ON t3.i = t2.i
 )
 ON t2.i = t1.i
 ;

--sorted_result
SELECT * FROM
 t1 LEFT JOIN
 ( t2 LEFT JOIN
   ( t3 LEFT JOIN
     t4
     ON t4.i = t3.i
   )
   ON t3.i = t2.i
 )
 ON t2.i = t1.i
 WHERE t4.i IS NULL;


# Most simplified testcase to reproduce the bug.
# (Has to be at least a two level nested outer join)
--sorted_result
SELECT * FROM
 t1 LEFT JOIN
 ( ( t2 LEFT JOIN
     t3
     ON t3.i = t2.i
   )
 )
 ON t2.i = t1.i
 WHERE t3.i IS NULL;


# Extended testing:
# We then add some equi-join inside the query above:
# (There Used to be some problems here with first
#  proposed patch for this bug)
--sorted_result
SELECT * FROM
 t1 LEFT JOIN
 ( ( t2 LEFT JOIN
     t3
     ON t3.i = t2.i
   )
   JOIN t4
   ON t4.i=t2.i
 )
 ON t2.i = t1.i
 WHERE t3.i IS NULL;

--sorted_result
SELECT * FROM
 t1 LEFT JOIN
 ( ( t2 LEFT JOIN
     t3
     ON t3.i = t2.i
   )
   JOIN (t4 AS t4a JOIN t4 AS t4b ON t4a.i=t4b.i)
   ON t4a.i=t2.i
 )
 ON t2.i = t1.i
 WHERE t3.i IS NULL;

--sorted_result
SELECT * FROM
 t1 LEFT JOIN
 ( ( t2 LEFT JOIN
     t3
     ON t3.i = t2.i
   )
   JOIN (t4 AS t4a, t4 AS t4b)
   ON t4a.i=t2.i
 )
 ON t2.i = t1.i
 WHERE t3.i IS NULL;


DROP TABLE t1,t2,t3,t4;

## Bug#49322 & bug#58490 are duplicates. However, we include testcases
## for both.
--echo #
--echo # Bug#49322(Duplicate): Server is adding extra NULL row
--echo # on processing a WHERE clause
--echo #

CREATE TABLE h (pk INT NOT NULL, col_int_key INT);
INSERT INTO h VALUES (1,NULL),(4,2),(5,2),(3,4),(2,8);

CREATE TABLE m (pk INT NOT NULL, col_int_key INT);
INSERT INTO m VALUES (1,2),(2,7),(3,5),(4,7),(5,5),(6,NULL),(7,NULL),(8,9);
CREATE TABLE k (pk INT NOT NULL, col_int_key INT);
INSERT INTO k VALUES (1,9),(2,2),(3,5),(4,2),(5,7),(6,0),(7,5);

# Baseline query wo/ 'WHERE ... IS NULL' - was correct
--sorted_result
SELECT TABLE1.pk FROM k TABLE1
RIGHT JOIN h TABLE2 ON TABLE1.col_int_key=TABLE2.col_int_key
RIGHT JOIN m TABLE4 ON TABLE2.col_int_key=TABLE4.col_int_key;

# Adding 'WHERE ... IS NULL' -> incorrect result
--sorted_result
SELECT TABLE1.pk FROM k TABLE1
RIGHT JOIN h TABLE2 ON TABLE1.col_int_key=TABLE2.col_int_key
RIGHT JOIN m TABLE4 ON TABLE2.col_int_key=TABLE4.col_int_key
WHERE TABLE1.pk IS NULL;

DROP TABLE h,m,k;

--echo #
--echo # Bug #11765810	58813: SERVER THREAD HANGS WHEN JOIN + WHERE + GROUP BY
--echo # IS EXECUTED TWICE FROM P
--echo #
CREATE TABLE t1 ( a INT ) ENGINE = MYISAM;
INSERT INTO t1 VALUES (1);
PREPARE prep_stmt FROM '
 SELECT 1 AS f FROM t1
 LEFT JOIN t1 t2
  RIGHT JOIN t1 t3
    JOIN t1 t4
   ON 1
  ON 1
 ON 1
 GROUP BY f';
EXECUTE prep_stmt;
EXECUTE prep_stmt;

DROP TABLE t1;


--echo End of 5.1 tests

--echo #
--echo # Bug#54235 Extra rows with join_cache_level=4,6,8 and two LEFT JOIN
--echo #

CREATE TABLE t1 (a int);
CREATE TABLE t2 (a int);
CREATE TABLE t3 (a int);
CREATE TABLE t4 (a int);

INSERT INTO t1 VALUES (null),(null);

let $query = SELECT t1.a FROM t1 LEFT JOIN (t2 LEFT JOIN t3 ON t2.a)
ON 0 WHERE t1.a OR t3.a;

eval explain $query;

eval $query;

let $query = SELECT t1.a FROM t1 LEFT JOIN
(t2 LEFT JOIN (t3 LEFT JOIN t4 ON 1) ON t2.a)
ON 0 WHERE t1.a OR t4.a;

eval explain $query;

eval $query;

DROP TABLE t1,t2,t3,t4;

--echo #
--echo # Bug#56254 Assertion tab->ref.use_count fails in
--echo # join_read_key_unlock_row() on 4-way JOIN
--echo #

CREATE TABLE t1 (
  pk INT NOT NULL,
  col_int_key INT,
  col_int INT,
  PRIMARY KEY (pk),
  KEY col_int_key (col_int_key)
);

INSERT INTO t1 VALUES (6, -448724992, NULL);

CREATE TABLE t2 (
  col_int INT,
  col_varchar_10 VARCHAR(10)
);

INSERT INTO t2 VALUES (6,'afasdkiyum');

CREATE TABLE t3 (
  col_varchar_10 VARCHAR(10),
  col_int INT
);

CREATE TABLE t4 (
  pk INT NOT NULL,
  PRIMARY KEY (pk)
);

INSERT INTO t4 VALUES (1);
INSERT INTO t4 VALUES (2);

SELECT t1.col_int
FROM t1
  LEFT JOIN t2
    LEFT JOIN t3
      JOIN t4  
      ON t3.col_int  = t4.pk
    ON t2.col_varchar_10 = t3.col_varchar_10
  ON t2.col_int = t1.pk
WHERE   t1.col_int_key IS NULL OR t4.pk < t3.col_int;

DROP TABLE t1,t2,t3,t4;

--echo
--echo # BUG#12567331 - INFINITE LOOP WHEN RESOLVING AN ALIASED COLUMN
--echo # USED IN GROUP BY
--echo 
CREATE TABLE t1 (pk int(11));

PREPARE prep_stmt_9846 FROM '
SELECT alias1.pk AS field1 FROM
t1 AS alias1
LEFT JOIN
( 
  t1 AS alias2
  RIGHT  JOIN
  ( 
    t1 AS alias3
    JOIN t1 AS alias4
    ON 1
  )
  ON 1
)
ON 1
GROUP BY field1';
execute prep_stmt_9846;
execute prep_stmt_9846;
deallocate prepare prep_stmt_9846;
drop table t1;

--echo #
--echo # Bug#13040136 - ASSERT IN PLAN_CHANGE_WATCHDOG::~PLAN_CHANGE_WATCHDOG()
--echo #
CREATE TABLE t1 (
  col_varchar_10 VARCHAR(10),
  col_int_key INTEGER,
  col_varchar_10_key VARCHAR(10),
  pk INTEGER NOT NULL,
  PRIMARY KEY (pk),
  KEY (col_int_key),
  KEY (col_varchar_10_key)
);
INSERT INTO t1 VALUES ('q',NULL,'o',1);

CREATE TABLE t2 (
  pk INTEGER NOT NULL AUTO_INCREMENT,
  col_varchar_10_key VARCHAR(10),
  col_int_key INTEGER,
  col_varchar_10 VARCHAR(10),
  PRIMARY KEY (pk),
  KEY (col_varchar_10_key),
  KEY col_int_key (col_int_key)
);
INSERT INTO t2 VALUES
(1,'r',NULL,'would'),(2,'tell',-655032320,'t'),
(3,'d',9,'a'),(4,'gvafasdkiy',6,'ugvafasdki'),
(5,'that\'s',NULL,'she'),(6,'bwftwugvaf',7,'cbwftwugva'),
(7,'f',-700055552,'mkacbwftwu'),(8,'a',9,'be'),
(9,'d',NULL,'u'),(10,'ckiixcsxmk',NULL,'o');

SELECT DISTINCT t2.col_int_key 
FROM
t1
LEFT JOIN t2
ON t1.col_varchar_10 = t2.col_varchar_10_key 
WHERE t2.pk
ORDER BY t2.col_int_key;

DROP TABLE t1,t2;

--echo #
--echo # Bug#13068506 - QUERY WITH GROUP BY ON NON-AGGR COLUMN RETURNS WRONG RESULT
--echo #
CREATE TABLE t1 (i1 int);
INSERT INTO t1 VALUES (100), (101);

CREATE TABLE t2 (i2 int, i3 int);
INSERT INTO t2 VALUES (20,1),(10,2);

CREATE TABLE t3 (i4 int(11));
INSERT INTO t3 VALUES (1),(2);

let $query= SELECT (
  SELECT MAX( t2.i2 )
  FROM t3 RIGHT JOIN t2 ON ( t2.i3 = 2 )
  WHERE t2.i3 <> t1.i1
) AS field1
FROM t1;

--echo
--eval $query;
--echo
--eval $query GROUP BY field1;

--echo
drop table t1,t2,t3;

--echo # Bug#11766384 - 59487: WRONG RESULT WITH STRAIGHT_JOIN AND RIGHT JOIN

CREATE TABLE t1 (
  pk int(11) NOT NULL,
  col_varchar_10_latin1_key varchar(10) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
INSERT INTO t1 VALUES (1,'1');
CREATE TABLE t2 (
  pk int(11) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
INSERT INTO t2 VALUES (1);
CREATE TABLE t3 (
  pk int(11) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
INSERT INTO t3 VALUES (1);
CREATE TABLE t4 (
  pk int(11) NOT NULL,
  col_int int(11) DEFAULT NULL,
  col_int_key int(11) DEFAULT NULL,
  col_varchar_10_latin1_key varchar(10) DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
INSERT INTO t4 VALUES (1,1,1,'1');
CREATE TABLE t5 (
  col_int int(11) DEFAULT NULL,
  col_varchar_10_utf8_key varchar(10) CHARACTER SET utf8 DEFAULT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
INSERT INTO t5 VALUES (1,'1');
CREATE TABLE t6 (
  col_int_key int(11) DEFAULT NULL,
  col_varchar_10_latin1_key varchar(10) DEFAULT NULL,
  pk int(11) NOT NULL
) ENGINE=InnoDB DEFAULT CHARSET=latin1;
INSERT INTO t6 VALUES (1,'1',1);

# EXPLAIN of query above (t2 is before t5 in plan)

let $rest_of_query=t6a.pk, t2.pk
FROM
  t6 AS t6a
  LEFT JOIN
  (
    t2
    RIGHT JOIN
    (
      (
        t1
        LEFT JOIN
        (
          t4
          JOIN
          t3
          ON t4.col_int
        )
        ON t4.col_int_key = t1.pk
      )
      LEFT JOIN
      (
        t5
        JOIN
        t6 AS t6b
        ON t5.col_varchar_10_utf8_key = t6b.col_varchar_10_latin1_key
      )
      ON t1.pk = t5.col_int
    )
    ON t4.col_varchar_10_latin1_key = t1.col_varchar_10_latin1_key
       AND t5.col_varchar_10_utf8_key = 0
  )
  ON t6a.pk IS TRUE
WHERE t6b.col_int_key IS TRUE
;

eval SELECT STRAIGHT_JOIN $rest_of_query;
eval EXPLAIN SELECT STRAIGHT_JOIN $rest_of_query;

# right result (same query, just remove STRAIGHT_JOIN):

eval SELECT $rest_of_query;
eval EXPLAIN SELECT $rest_of_query;

drop table t1,t2,t3,t4,t5,t6;

--echo #
--echo # Verify that the "not exists" optimization works.
--echo #
CREATE TABLE t1(a INT);
CREATE TABLE t2(a INT NOT NULL);
INSERT INTO t1 VALUES(1),(2);
INSERT INTO t2 VALUES(1),(2);
let $query=SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.a WHERE t2.a IS NULL;
eval EXPLAIN $query;
FLUSH STATUS;
eval $query;
# Without the "not exists" optimization, there would be more read_rnd_next
SHOW STATUS LIKE 'HANDLER_READ%';
DROP TABLE t1,t2;

--echo #
--echo # Bug#13464334 SAME QUERY PRODUCES DIFFERENT RESULTS WHEN USED WITH AND
--echo # WITHOUT UNION ALL
--echo #

CREATE TABLE t1 (p1 INT PRIMARY KEY, a CHAR(1));
CREATE TABLE t2 (p2 INT PRIMARY KEY, b CHAR(1));
INSERT INTO t1 VALUES (1,'a'),(2,'b'),(3,'c');
INSERT INTO t2 VALUES (1,'h'),(2,'i'),(3,'j'),(4,'k');
CREATE VIEW v1 AS SELECT * FROM t1;
CREATE VIEW v2 AS SELECT * FROM t2;
(SELECT p1 FROM v2 LEFT JOIN v1 ON b = a WHERE p2 = 1 GROUP BY p1 ORDER BY p1)
UNION (SELECT NULL LIMIT 0);
DROP VIEW v1, v2;
DROP TABLE t1, t2;

--echo #
--echo # Bug#13980954 Missing data on left join + null value + where..in
--echo #

CREATE TABLE t1 (ik INT, vc varchar(1)) ENGINE=Innodb;

let $query=
SELECT straight_join t1.vc, t1.ik
FROM t1 JOIN t1 AS t2 ON t1.vc=t2.vc LEFT JOIN t1 AS t3 ON t1.vc=t3.vc;

eval explain format=json $query;
eval $query;

DROP TABLE t1;