diff options
Diffstat (limited to 'mysql-test/r/join_outer.result')
| -rw-r--r-- | mysql-test/r/join_outer.result | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/mysql-test/r/join_outer.result b/mysql-test/r/join_outer.result index 76c1b06b638..19368ace977 100644 --- a/mysql-test/r/join_outer.result +++ b/mysql-test/r/join_outer.result @@ -4,6 +4,7 @@ grp int(11) default NULL, a bigint(20) unsigned default NULL, c char(10) NOT NULL default '' ) ENGINE=MyISAM; +) 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); @@ -665,3 +666,20 @@ left outer join t2 using (f2) left outer join t3 using (f3); ERROR 42S22: Unknown column 'test.t2.f3' in 'on clause' 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; +a1 a2 b1 b2 c1 c2 +1 2 1 3 NULL NULL +2 2 2 3 NULL NULL +3 2 NULL NULL 3 4 +explain select * from t1 left join t2 on b1 = a1 left join t3 on c1 = a1 and b1 is null; +table type possible_keys key key_len ref rows Extra +t1 ALL NULL NULL NULL NULL 3 +t2 ALL NULL NULL NULL NULL 2 +t3 ALL NULL NULL NULL NULL 2 +drop table t1, t2, t3; |