diff options
Diffstat (limited to 'mysql-test/r/view.result')
| -rw-r--r-- | mysql-test/r/view.result | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/mysql-test/r/view.result b/mysql-test/r/view.result index 6530fd10a6a..3c6eb235a57 100644 --- a/mysql-test/r/view.result +++ b/mysql-test/r/view.result @@ -5536,6 +5536,89 @@ Warnings: Warning 1356 View 'test.v1' references invalid table(s) or column(s) or function(s) or definer/invoker of view lack rights to use them drop view v1; drop table t1,t2; +# +# MDEV-12099: usage of mergeable view with LEFT JOIN +# that can be converted to INNER JOIN +# +create table t1 (a int, b int, key(a)) engine=myisam; +insert into t1 values +(3,20), (7,10), (2,10), (4,30), (8,70), +(7,70), (9,100), (9,60), (8,80), (7,60); +create table t2 (c int, d int, key (c)) engine=myisam; +insert into t2 values +(50,100), (20, 200), (10,300), +(150,100), (120, 200), (110,300), +(250,100), (220, 200), (210,300); +create table t3(e int, f int not null, key(e), unique (f)) engine=myisam; +insert into t3 values +(100, 3), (300, 5), (400, 4), (300,7), +(300,2), (600, 13), (800, 15), (700, 14), +(600, 23), (800, 25), (700, 24); +create view v1 as +select * from t2 left join t3 on t3.e=t2.d where t3.f is not null; +select * +from t1 left join v1 on v1.c=t1.b +where t1.a < 5; +a b c d e f +2 10 10 300 300 5 +2 10 10 300 300 7 +2 10 10 300 300 2 +3 20 NULL NULL NULL NULL +4 30 NULL NULL NULL NULL +select * +from t1 left join ( t2 left join t3 on t3.e=t2.d ) +on t2.c=t1.b and t3.f is not null +where t1.a < 5; +a b c d e f +2 10 10 300 300 5 +2 10 10 300 300 7 +2 10 10 300 300 2 +3 20 NULL NULL NULL NULL +4 30 NULL NULL NULL NULL +explain extended +select * +from t1 left join v1 on v1.c=t1.b +where t1.a < 5; +id select_type table type possible_keys key key_len ref rows filtered Extra +1 SIMPLE t1 range a a 5 NULL 3 100.00 Using index condition +1 SIMPLE t2 ref c c 5 test.t1.b 2 100.00 Using where +1 SIMPLE t3 ref f,e e 5 test.t2.d 2 100.00 Using where +Warnings: +Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d`,`test`.`t3`.`e` AS `e`,`test`.`t3`.`f` AS `f` from `test`.`t1` left join (`test`.`t2` join `test`.`t3`) on(((`test`.`t2`.`c` = `test`.`t1`.`b`) and (`test`.`t3`.`e` = `test`.`t2`.`d`) and (`test`.`t3`.`f` is not null) and (`test`.`t1`.`b` is not null) and (`test`.`t2`.`d` is not null))) where (`test`.`t1`.`a` < 5) +explain extended +select * +from t1 left join ( t2 left join t3 on t3.e=t2.d ) +on t2.c=t1.b and t3.f is not null +where t1.a < 5; +id select_type table type possible_keys key key_len ref rows filtered Extra +1 SIMPLE t1 range a a 5 NULL 3 100.00 Using index condition +1 SIMPLE t2 ref c c 5 test.t1.b 2 100.00 Using where +1 SIMPLE t3 ref f,e e 5 test.t2.d 2 100.00 Using where +Warnings: +Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d`,`test`.`t3`.`e` AS `e`,`test`.`t3`.`f` AS `f` from `test`.`t1` left join (`test`.`t2` join `test`.`t3`) on(((`test`.`t2`.`c` = `test`.`t1`.`b`) and (`test`.`t3`.`e` = `test`.`t2`.`d`) and (`test`.`t3`.`f` is not null) and (`test`.`t1`.`b` is not null) and (`test`.`t2`.`d` is not null))) where (`test`.`t1`.`a` < 5) +explain extended +select * +from t1 left join v1 on v1.c=t1.b and v1.f=t1.a +where t1.a < 5; +id select_type table type possible_keys key key_len ref rows filtered Extra +1 SIMPLE t1 range a a 5 NULL 3 100.00 Using index condition +1 SIMPLE t3 eq_ref f,e f 4 test.t1.a 1 100.00 Using where +1 SIMPLE t2 ref c c 5 test.t1.b 2 100.00 Using where +Warnings: +Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d`,`test`.`t3`.`e` AS `e`,`test`.`t3`.`f` AS `f` from `test`.`t1` left join (`test`.`t2` join `test`.`t3`) on(((`test`.`t2`.`c` = `test`.`t1`.`b`) and (`test`.`t3`.`f` = `test`.`t1`.`a`) and (`test`.`t2`.`d` = `test`.`t3`.`e`) and (`test`.`t1`.`a` is not null) and (`test`.`t1`.`a` is not null) and (`test`.`t1`.`b` is not null))) where (`test`.`t1`.`a` < 5) +explain extended +select * +from t1 left join ( t2 left join t3 on t3.e=t2.d ) +on t2.c=t1.b and t3.f=t1.a and t3.f is not null +where t1.a < 5; +id select_type table type possible_keys key key_len ref rows filtered Extra +1 SIMPLE t1 range a a 5 NULL 3 100.00 Using index condition +1 SIMPLE t3 eq_ref f,e f 4 test.t1.a 1 100.00 Using where +1 SIMPLE t2 ref c c 5 test.t1.b 2 100.00 Using where +Warnings: +Note 1003 select `test`.`t1`.`a` AS `a`,`test`.`t1`.`b` AS `b`,`test`.`t2`.`c` AS `c`,`test`.`t2`.`d` AS `d`,`test`.`t3`.`e` AS `e`,`test`.`t3`.`f` AS `f` from `test`.`t1` left join (`test`.`t2` join `test`.`t3`) on(((`test`.`t2`.`c` = `test`.`t1`.`b`) and (`test`.`t3`.`f` = `test`.`t1`.`a`) and (`test`.`t2`.`d` = `test`.`t3`.`e`) and (`test`.`t1`.`a` is not null) and (`test`.`t1`.`a` is not null) and (`test`.`t1`.`b` is not null))) where (`test`.`t1`.`a` < 5) +drop view v1; +drop table t1,t2,t3; # ----------------------------------------------------------------- # -- End of 5.5 tests. # ----------------------------------------------------------------- |