diff options
Diffstat (limited to 'mysql-test/main/join_outer.result')
| -rw-r--r-- | mysql-test/main/join_outer.result | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/mysql-test/main/join_outer.result b/mysql-test/main/join_outer.result index fcffeb6d161..6bcaee31e54 100644 --- a/mysql-test/main/join_outer.result +++ b/mysql-test/main/join_outer.result @@ -1,4 +1,5 @@ drop table if exists t0,t1,t2,t3,t4,t5; +drop view if exists v0,v1,v2,v3; SET @org_optimizer_switch=@@optimizer_switch; SET optimizer_switch=ifnull(@optimizer_switch_for_join_outer_test,'outer_join_with_cache=off'); set join_cache_level=1; @@ -2825,5 +2826,89 @@ WHERE t3.pk IN (2); 1 drop view v4; drop table t1,t2,t3,t4; +# +# MDEV-28602 Wrong result with outer join, merged derived table and view +# +create table t1 ( +Election int(10) unsigned NOT NULL +); +insert into t1 (Election) values (1); +create table t2 ( +VoteID int(10), +ElectionID int(10), +UserID int(10) +); +insert into t2 (ElectionID, UserID) values (2, 30), (3, 30); +create view v1 as select * from t1 +left join ( select 'Y' AS Voted, ElectionID from t2 ) AS T +on T.ElectionID = t1.Election +limit 9; +select * from v1; +Election Voted ElectionID +1 NULL NULL +drop table t1, t2; +drop view v1; +# +# and another contrived example showing a bit of heirarchy +# +create table t10 (a int); +create table t20 (b int); +insert into t10 values (1),(2); +insert into t20 values (1),(3); +create view v10 as select *, 'U' as u from t10 left join (select 'Y' as y, t20.b from t20) dt1 on t10.a= dt1.b limit 3; +create table t30 (c int); +insert into t30 values (1),(3); +create view v20 as select * from t30 left join (select 'X' as x, v10.u, v10.y, v10.b from v10) dt2 on t30.c=dt2.b limit 6; +select * from v20 limit 9; +c x u y b +1 X U Y 1 +3 NULL NULL NULL NULL +drop view v10, v20; +drop table t10, t20, t30; +# +# More complex testcase +# +create table t2 (b int); +insert into t2 values (3),(7),(1); +create table t3 (c int); +insert into t3 values (3),(1); +create table t1 (a int); +insert into t1 values (1),(2),(7),(1); +select * from +( +select * from +(select 'Z' as z, t1.a from t1) dt1 +left join +(select 'Y' as y, t2.b from t2) dt2 +left join +(select 'X' as x, t3.c from t3) dt3 +on dt2.b=dt3.c +on dt1.a=dt2.b +limit 9 +) dt; +z a y b x c +Z 1 Y 1 X 1 +Z 2 NULL NULL NULL NULL +Z 7 Y 7 NULL NULL +Z 1 Y 1 X 1 +create view v3(x,c) as select * from (select 'X' as x, t3.c from t3) dt3; +create view v2(y,b) as select * from (select 'Y' as y, t2.b from t2) dt2; +create view v0(y,b,x,c) as select * from v2 left join v3 on v2.b=v3.c; +create view v1 as select 'Z' as z, t1.a, v0.* from t1 left join v0 on t1.a=v0.b limit 9; +select * from v1; +z a y b x c +Z 1 Y 1 X 1 +Z 2 NULL NULL NULL NULL +Z 7 Y 7 NULL NULL +Z 1 Y 1 X 1 +set statement join_cache_level=0 for +select * from v1; +z a y b x c +Z 1 Y 1 X 1 +Z 2 NULL NULL NULL NULL +Z 7 Y 7 NULL NULL +Z 1 Y 1 X 1 +drop view v0, v1, v2, v3; +drop table t1, t2, t3; # end of 10.3 tests SET optimizer_switch=@org_optimizer_switch; |