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Commit 3b672d7e authored by timour@mysql.com's avatar timour@mysql.com
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WL#2486 - natural/using join according to SQL:2003. 

Implemented specialized regression test for the WL.
parent 04d1ef90
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mysql-test/r/join.result
View file @ 3b672d7e
......@@ -391,3 +391,309 @@ i i i
2 NULL 4
2 2 2
drop table t1,t2,t3;
create table t1 (c int, b int);
create table t2 (a int, b int);
create table t3 (b int, c int);
create table t4 (y int, c int);
create table t5 (y int, z int);
create table t6 (a int, c int);
insert into t1 values (10,1);
insert into t1 values (3 ,1);
insert into t1 values (3 ,2);
insert into t2 values (2, 1);
insert into t3 values (1, 3);
insert into t3 values (1,10);
insert into t4 values (11,3);
insert into t4 values (2, 3);
insert into t5 values (11,4);
insert into t6 values (2, 3);
create algorithm=merge view v1a as
select * from t1 natural join t2;
create algorithm=merge view v1b(a,b,c) as
select * from t1 natural join t2;
create algorithm=merge view v1c as
select b as a, c as b, a as c from t1 natural join t2;
create algorithm=merge view v1d(b, a, c) as
select a as c, c as b, b as a from t1 natural join t2;
create algorithm=merge view v2a as
select t1.c, t1.b, t2.a from t1 join (t2 join t4 on b + 1 = y) on t1.c = t4.c;
create algorithm=merge view v2b as
select t1.c as b, t1.b as a, t2.a as c
from t1 join (t2 join t4 on b + 1 = y) on t1.c = t4.c;
create algorithm=merge view v3a as
select * from t1 natural join t2 natural join t3;
create algorithm=merge view v3b as
select * from t1 natural join (t2 natural join t3);
create algorithm=merge view v4 as
select * from v2a natural join v3a;
select * from (t1 natural join t2) natural join (t3 natural join t4);
b c a y
1 3 2 11
1 3 2 2
select * from (t1 natural join t2) natural left join (t3 natural join t4);
b c a y
1 10 2 NULL
1 3 2 11
1 3 2 2
select * from (t3 natural join t4) natural right join (t1 natural join t2);
b c a y
1 10 2 NULL
1 3 2 11
1 3 2 2
select * from (t1 natural left join t2) natural left join (t3 natural left join t4);
b c a y
1 10 2 NULL
1 3 2 11
1 3 2 2
2 3 NULL NULL
select * from (t4 natural right join t3) natural right join (t2 natural right join t1);
b c a y
1 10 2 NULL
1 3 2 11
1 3 2 2
2 3 NULL NULL
select * from t1 natural join t2 natural join t3 natural join t4;
c b a y
3 1 2 11
3 1 2 2
select * from ((t1 natural join t2) natural join t3) natural join t4;
c b a y
3 1 2 11
3 1 2 2
select * from t1 natural join (t2 natural join (t3 natural join t4));
c b a y
3 1 2 11
3 1 2 2
select * from ((t3 natural left join (t1 natural left join t2)) natural left join t4) natural left join t5;
y c b a z
11 3 1 2 4
2 3 1 2 NULL
NULL 10 1 2 NULL
select * from t5 natural right join (t4 natural right join ((t2 natural right join t1) natural right join t3));
y c b a z
11 3 1 2 4
2 3 1 2 NULL
NULL 10 1 2 NULL
select * from (t1 natural join t2), (t3 natural join t4);
b c a c b y
1 10 2 3 1 11
1 10 2 3 1 2
1 3 2 3 1 11
1 3 2 3 1 2
select * from (t1 join t2 using (b)) join (t3 join t4 using (c)) using (c);
c b a b y
3 1 2 1 11
3 1 2 1 2
select * from (t1 join t2 using (b)) natural join (t3 join t4 using (c));
b c a y
1 3 2 11
1 3 2 2
select a,b,c from (t1 natural join t2) natural join (t3 natural join t4)
where b + 1 = y or b + 10 = y group by b,c,a having min(b) < max(y) order by a;
a b c
2 1 3
select * from (t1 natural join t2) natural left join (t3 natural join t4)
where b + 1 = y or b + 10 = y group by b,c,a,y having min(b) < max(y) order by a, y;
b c a y
1 3 2 2
1 3 2 11
select * from (t3 natural join t4) natural right join (t1 natural join t2)
where b + 1 = y or b + 10 = y group by b,c,a,y having min(b) < max(y) order by a, y;
b c a y
1 3 2 2
1 3 2 11
select * from t1 natural join t2 where t1.c > t2.a;
b c a
1 10 2
1 3 2
select * from t1 natural join t2 where t1.b > t2.b;
b c a
select * from t1 natural left join (t4 natural join t5) where t5.z is not NULL;
c b y z
3 1 11 4
3 2 11 4
select * from t1 join (t2 join t4 on b + 1 = y) on t1.c = t4.c;
c b a b y c
3 1 2 1 2 3
3 2 2 1 2 3
select * from (t2 join t4 on b + 1 = y) join t1 on t1.c = t4.c;
a b y c c b
2 1 2 3 3 1
2 1 2 3 3 2
select * from t1 natural join (t2 join t4 on b + 1 = y);
c b a y
3 1 2 2
select * from (t1 cross join t2) join (t3 cross join t4) on (a < y and t2.b < t3.c);
c b a b b c y c
10 1 2 1 1 3 11 3
10 1 2 1 1 10 11 3
3 1 2 1 1 3 11 3
3 1 2 1 1 10 11 3
3 2 2 1 1 3 11 3
3 2 2 1 1 10 11 3
select * from (t1, t2) join (t3, t4) on (a < y and t2.b < t3.c);
c b a b b c y c
10 1 2 1 1 3 11 3
10 1 2 1 1 10 11 3
3 1 2 1 1 3 11 3
3 1 2 1 1 10 11 3
3 2 2 1 1 3 11 3
3 2 2 1 1 10 11 3
select * from (t1 natural join t2) join (t3 natural join t4) on a = y;
b c a c b y
1 10 2 3 1 2
1 3 2 3 1 2
select * from ((t3 join (t1 join t2 on c > a) on t3.b < t2.a) join t4 on y > t1.c) join t5 on z = t1.b + 3;
b c c b a b y c y z
1 3 10 1 2 1 11 3 11 4
1 10 10 1 2 1 11 3 11 4
1 3 3 1 2 1 11 3 11 4
1 10 3 1 2 1 11 3 11 4
select * from t1 natural join t2 where t1.b > 0;
b c a
1 10 2
1 3 2
select * from t1 natural join (t4 natural join t5) where t4.y > 7;
c b y z
3 1 11 4
3 2 11 4
select * from (t4 natural join t5) natural join t1 where t4.y > 7;
c y z b
3 11 4 1
3 11 4 2
select * from t1 natural left join (t4 natural join t5) where t4.y > 7;
c b y z
3 1 11 4
3 2 11 4
select * from (t4 natural join t5) natural right join t1 where t4.y > 7;
c b y z
3 1 11 4
3 2 11 4
select * from (t1 natural join t2) join (t3 natural join t4) on t1.b = t3.b;
b c a c b y
1 10 2 3 1 11
1 10 2 3 1 2
1 3 2 3 1 11
1 3 2 3 1 2
select t1.*, t2.* from t1 natural join t2;
c b a b
10 1 2 1
3 1 2 1
select t1.*, t2.*, t3.*, t4.* from (t1 natural join t2) natural join (t3 natural join t4);
c b a b b c y c
3 1 2 1 1 3 11 3
3 1 2 1 1 3 2 3
select * from (select * from t1 natural join t2) as t12
natural join
(select * from t3 natural join t4) as t34;
b c a y
1 3 2 11
1 3 2 2
select * from (select * from t1 natural join t2) as t12
natural left join
(select * from t3 natural join t4) as t34;
b c a y
1 10 2 NULL
1 3 2 11
1 3 2 2
select * from (select * from t3 natural join t4) as t34
natural right join
(select * from t1 natural join t2) as t12;
b c a y
1 10 2 NULL
1 3 2 11
1 3 2 2
select * from v1a;
b c a
1 10 2
1 3 2
select * from v1b;
a b c
1 10 2
1 3 2
select * from v1c;
a b c
1 10 2
1 3 2
select * from v1d;
b a c
2 10 1
2 3 1
select * from v2a;
c b a
3 1 2
3 2 2
select * from v2b;
b a c
3 1 2
3 2 2
select * from v3a;
b c a
1 10 2
1 3 2
select * from v3b;
c b a
10 1 2
3 1 2
select * from v4;
c b a
3 1 2
select * from v1a natural join v2a;
b c a
1 3 2
select v2a.* from v1a natural join v2a;
c b a
3 1 2
select * from v1b join v2a on v1b.b = v2a.c;
a b c c b a
1 3 2 3 1 2
1 3 2 3 2 2
select * from v1c join v2a on v1c.b = v2a.c;
a b c c b a
1 3 2 3 1 2
1 3 2 3 2 2
select * from v1d join v2a on v1d.a = v2a.c;
b a c c b a
2 3 1 3 1 2
2 3 1 3 2 2
select * from v1a join (t3 natural join t4) on a = y;
b c a c b y
1 10 2 3 1 2
1 3 2 3 1 2
select * from t1 natural join (t3 cross join t4);
ERROR 23000: Column 'c' in from clause is ambiguous
select * from (t3 cross join t4) natural join t1;
ERROR 23000: Column 'c' in from clause is ambiguous
select * from t1 join (t2, t3) using (b);
ERROR 23000: Column 'b' in from clause is ambiguous
select * from ((t1 natural join t2), (t3 natural join t4)) natural join t6;
ERROR 23000: Column 'c' in from clause is ambiguous
select * from ((t1 natural join t2), (t3 natural join t4)) natural join t6;
ERROR 23000: Column 'c' in from clause is ambiguous
select * from (t1 join t2 on t1.b=t2.b) natural join (t3 natural join t4);
ERROR 23000: Column 'b' in from clause is ambiguous
select * from (t3 natural join t4) natural join (t1 join t2 on t1.b=t2.b);
ERROR 23000: Column 'b' in from clause is ambiguous
select * from (t3 join (t4 natural join t5) on (b < z))
natural join
(t1 natural join t2);
ERROR 23000: Column 'c' in from clause is ambiguous
select t1.b from v1a;
ERROR 42S22: Unknown column 't1.b' in 'field list'
select * from v1a join v1b on t1.b = t2.b;
ERROR 42S22: Unknown column 't1.b' in 'on clause'
drop table t1;
drop table t2;
drop table t3;
drop table t4;
drop table t5;
drop table t6;
drop view v1a;
drop view v1b;
drop view v1c;
drop view v1d;
drop view v2a;
drop view v2b;
drop view v3a;
drop view v3b;
drop view v4;
mysql-test/t/join.test
View file @ 3b672d7e
......@@ -334,3 +334,210 @@ select t1.i,t2.i,t3.i from t2 right join t3 on (t2.i=t3.i),t1 order by t1.i,t2.i
drop table t1,t2,t3;
# End of 4.1 tests
#
# Tests for WL#2486 Natural/using join according to SQL:2003.
#
# NOTICE:
# - The tests are designed so that all statements, except MySQL
# extensions run on any SQL server. Please do no change.
# - Tests marked with TODO will be submitted as bugs.
#
create table t1 (c int, b int);
create table t2 (a int, b int);
create table t3 (b int, c int);
create table t4 (y int, c int);
create table t5 (y int, z int);
create table t6 (a int, c int);
insert into t1 values (10,1);
insert into t1 values (3 ,1);
insert into t1 values (3 ,2);
insert into t2 values (2, 1);
insert into t3 values (1, 3);
insert into t3 values (1,10);
insert into t4 values (11,3);
insert into t4 values (2, 3);
insert into t5 values (11,4);
insert into t6 values (2, 3);
-- Views with simple natural join.
create algorithm=merge view v1a as
select * from t1 natural join t2;
-- as above, but column names are cross-renamed: a->c, c->b, b->a
create algorithm=merge view v1b(a,b,c) as
select * from t1 natural join t2;
-- as above, but column names are aliased: a->c, c->b, b->a
create algorithm=merge view v1c as
select b as a, c as b, a as c from t1 natural join t2;
-- as above, but column names are cross-renamed, and aliased
-- a->c->b, c->b->a, b->a->c
create algorithm=merge view v1d(b, a, c) as
select a as c, c as b, b as a from t1 natural join t2;
-- Views with JOIN ... ON
create algorithm=merge view v2a as
select t1.c, t1.b, t2.a from t1 join (t2 join t4 on b + 1 = y) on t1.c = t4.c;
create algorithm=merge view v2b as
select t1.c as b, t1.b as a, t2.a as c
from t1 join (t2 join t4 on b + 1 = y) on t1.c = t4.c;
-- Views with bigger natural join
create algorithm=merge view v3a as
select * from t1 natural join t2 natural join t3;
create algorithm=merge view v3b as
select * from t1 natural join (t2 natural join t3);
-- View over views with mixed natural join and join ... on
create algorithm=merge view v4 as
select * from v2a natural join v3a;
-- Nested natural/using joins.
select * from (t1 natural join t2) natural join (t3 natural join t4);
select * from (t1 natural join t2) natural left join (t3 natural join t4);
select * from (t3 natural join t4) natural right join (t1 natural join t2);
select * from (t1 natural left join t2) natural left join (t3 natural left join t4);
select * from (t4 natural right join t3) natural right join (t2 natural right join t1);
select * from t1 natural join t2 natural join t3 natural join t4;
select * from ((t1 natural join t2) natural join t3) natural join t4;
select * from t1 natural join (t2 natural join (t3 natural join t4));
-- BUG#15355: this query fails in 'prepared statements' mode
-- select * from ((t3 natural join (t1 natural join t2)) natural join t4) natural join t5;
select * from ((t3 natural left join (t1 natural left join t2)) natural left join t4) natural left join t5;
select * from t5 natural right join (t4 natural right join ((t2 natural right join t1) natural right join t3));
select * from (t1 natural join t2), (t3 natural join t4);
-- MySQL extension - nested comma ',' operator instead of cross join.
-- BUG#15357 - natural join with nested cross-join results in incorrect columns
-- select * from t5 natural join ((t1 natural join t2), (t3 natural join t4));
-- select * from ((t1 natural join t2), (t3 natural join t4)) natural join t5;
-- select * from t5 natural join ((t1 natural join t2) cross join (t3 natural join t4));
-- select * from ((t1 natural join t2) cross join (t3 natural join t4)) natural join t5;
select * from (t1 join t2 using (b)) join (t3 join t4 using (c)) using (c);
select * from (t1 join t2 using (b)) natural join (t3 join t4 using (c));
-- Other clauses refer to NJ columns.
select a,b,c from (t1 natural join t2) natural join (t3 natural join t4)
where b + 1 = y or b + 10 = y group by b,c,a having min(b) < max(y) order by a;
select * from (t1 natural join t2) natural left join (t3 natural join t4)
where b + 1 = y or b + 10 = y group by b,c,a,y having min(b) < max(y) order by a, y;
select * from (t3 natural join t4) natural right join (t1 natural join t2)
where b + 1 = y or b + 10 = y group by b,c,a,y having min(b) < max(y) order by a, y;
-- Qualified column references to NJ columns.
select * from t1 natural join t2 where t1.c > t2.a;
select * from t1 natural join t2 where t1.b > t2.b;
select * from t1 natural left join (t4 natural join t5) where t5.z is not NULL;
-- Nested 'join ... on' - name resolution of ON conditions
select * from t1 join (t2 join t4 on b + 1 = y) on t1.c = t4.c;
select * from (t2 join t4 on b + 1 = y) join t1 on t1.c = t4.c;
select * from t1 natural join (t2 join t4 on b + 1 = y);
select * from (t1 cross join t2) join (t3 cross join t4) on (a < y and t2.b < t3.c);
-- MySQL extension - 'join ... on' over nested comma operator
select * from (t1, t2) join (t3, t4) on (a < y and t2.b < t3.c);
select * from (t1 natural join t2) join (t3 natural join t4) on a = y;
select * from ((t3 join (t1 join t2 on c > a) on t3.b < t2.a) join t4 on y > t1.c) join t5 on z = t1.b + 3;
-- MySQL extension - refererence qualified coalesced columns
select * from t1 natural join t2 where t1.b > 0;
select * from t1 natural join (t4 natural join t5) where t4.y > 7;
select * from (t4 natural join t5) natural join t1 where t4.y > 7;
select * from t1 natural left join (t4 natural join t5) where t4.y > 7;
select * from (t4 natural join t5) natural right join t1 where t4.y > 7;
select * from (t1 natural join t2) join (t3 natural join t4) on t1.b = t3.b;
-- MySQL extension - select qualified columns of NJ columns
select t1.*, t2.* from t1 natural join t2;
select t1.*, t2.*, t3.*, t4.* from (t1 natural join t2) natural join (t3 natural join t4);
-- Queries over subselects in the FROM clause
select * from (select * from t1 natural join t2) as t12
natural join
(select * from t3 natural join t4) as t34;
select * from (select * from t1 natural join t2) as t12
natural left join
(select * from t3 natural join t4) as t34;
select * from (select * from t3 natural join t4) as t34
natural right join
(select * from t1 natural join t2) as t12;
-- Queries over views
select * from v1a;
select * from v1b;
select * from v1c;
select * from v1d;
select * from v2a;
select * from v2b;
select * from v3a;
select * from v3b;
select * from v4;
select * from v1a natural join v2a;
select v2a.* from v1a natural join v2a;
select * from v1b join v2a on v1b.b = v2a.c;
select * from v1c join v2a on v1c.b = v2a.c;
select * from v1d join v2a on v1d.a = v2a.c;
select * from v1a join (t3 natural join t4) on a = y;
-- TODO: add tests with correlated subqueries for natural join/join on.
-- related to BUG#15269
----------------------------------------------------------------------
-- Negative tests (tests for errors)
----------------------------------------------------------------------
-- error 1052
select * from t1 natural join (t3 cross join t4); -- works in Oracle - bug
-- error 1052
select * from (t3 cross join t4) natural join t1; -- works in Oracle - bug
-- error 1052
select * from t1 join (t2, t3) using (b);
-- error 1052
select * from ((t1 natural join t2), (t3 natural join t4)) natural join t6;
-- error 1052
select * from ((t1 natural join t2), (t3 natural join t4)) natural join t6;
-- error 1052
-- BUG#15357: doesn't detect non-unique column 'c', as in the above query.
-- select * from t6 natural join ((t1 natural join t2), (t3 natural join t4));
-- error 1052
select * from (t1 join t2 on t1.b=t2.b) natural join (t3 natural join t4);
-- error 1052
select * from (t3 natural join t4) natural join (t1 join t2 on t1.b=t2.b);
-- this one is OK, the next equivalent one is incorrect (bug in Oracle)
-- error 1052
select * from (t3 join (t4 natural join t5) on (b < z))
natural join
(t1 natural join t2);
-- error 1052
-- BUG#15357: this query should return an ambiguous column error
-- Expected result: the query must return error with duplicate column 'c'
--select * from (t1 natural join t2)
-- natural join
-- (t3 join (t4 natural join t5) on (b < z));
-- error 1054
select t1.b from v1a;
-- error 1054
select * from v1a join v1b on t1.b = t2.b;
drop table t1;
drop table t2;
drop table t3;
drop table t4;
drop table t5;
drop table t6;
drop view v1a;
drop view v1b;
drop view v1c;
drop view v1d;
drop view v2a;
drop view v2b;
drop view v3a;
drop view v3b;
drop view v4;
# End of tests for WL#2486 - natural/using join
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