Commit 4bf5c7c5 authored by unknown's avatar unknown
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Test for BUG#4889 - inconsistent resilts of more than 2-way natural join 

due to incorrect transformation to JOIN ... ON.

The bug itself is fixed by WL#2486.


mysql-test/r/select.result:
  Test for BUG#4889.
mysql-test/t/select.test:
  Test for BUG#4889.
parent b4e830c3

mysql-test/r/select.result

+15 −0
Original line number Diff line number Diff line
@@ -2860,3 +2860,18 @@ a2 c 
2	2

drop table t1, t2;

drop view v2;

create table t1 (a int(10), t1_val int(10));

create table t2 (b int(10), t2_val int(10));

create table t3 (a int(10), b int(10));

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

insert into t2 values (1,1),(2,2),(3,3);

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

select * from t1 natural join t2 natural join t3;

a	b	t1_val	t2_val

1	1	1	1

2	1	2	1

select * from t1 natural join t3 natural join t2;

b	a	t1_val	t2_val

1	1	1	1

1	2	2	1

drop table t1, t2, t3;

mysql-test/t/select.test

+17 −0
Original line number Diff line number Diff line
@@ -2426,3 +2426,20 @@ select * from v2 natural right join t2; 


drop table t1, t2;

drop view v2;





#

# Bug #4789 Incosistent results of more than 2-way natural joins due to

#           incorrect transformation to join ... on.

#



create table t1 (a int(10), t1_val int(10));

create table t2 (b int(10), t2_val int(10));

create table t3 (a int(10), b int(10));

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

insert into t2 values (1,1),(2,2),(3,3);

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

# the following two queries must return the same result

select * from t1 natural join t2 natural join t3;

select * from t1 natural join t3 natural join t2;

drop table t1, t2, t3;