1
2	fail: correlated subquery
3
4	fail: exists
5
6
0.0000
7
8
9
10
11
12
13	fail: join predicates
14
0.00000000
15	fail: correlated subquery
16
17	fail: correlated subquery
18
19
0.0000
20	fail: correlated subquery
21	fail: exists, not exists
22	fail: not exists