1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
# 2007 May 6
#
# The author disclaims copyright to this source code. In place of
# a legal notice, here is a blessing:
#
# May you do good and not evil.
# May you find forgiveness for yourself and forgive others.
# May you share freely, never taking more than you give.
#
#***********************************************************************
#
# $Id: tkt2339.test,v 1.2 2007/09/12 17:01:45 danielk1977 Exp $
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
ifcapable !subquery||!compound {
finish_test
return
}
do_test tkt2339.1 {
execsql {
create table t1(num int);
insert into t1 values (1);
insert into t1 values (2);
insert into t1 values (3);
insert into t1 values (4);
create table t2(num int);
insert into t2 values (11);
insert into t2 values (12);
insert into t2 values (13);
insert into t2 values (14);
SELECT * FROM (SELECT * FROM t1 ORDER BY num DESC LIMIT 2)
UNION
SELECT * FROM (SELECT * FROM t2 ORDER BY num DESC LIMIT 2)
}
} {3 4 13 14}
do_test tkt2339.2 {
execsql {
SELECT * FROM (SELECT * FROM t1 ORDER BY num DESC LIMIT 2)
UNION ALL
SELECT * FROM (SELECT * FROM t2 ORDER BY num DESC LIMIT 2)
}
} {4 3 14 13}
do_test tkt2339.3 {
execsql {
SELECT * FROM (SELECT * FROM t1 ORDER BY num DESC)
UNION ALL
SELECT * FROM (SELECT * FROM t2 ORDER BY num DESC LIMIT 2)
}
} {4 3 2 1 14 13}
do_test tkt2339.4 {
execsql {
SELECT * FROM (SELECT * FROM t1 ORDER BY num DESC LIMIT 2)
UNION ALL
SELECT * FROM (SELECT * FROM t2 ORDER BY num DESC)
}
} {4 3 14 13 12 11}
do_test tkt2339.5 {
execsql {
SELECT * FROM (SELECT * FROM t1 ORDER BY num DESC LIMIT 2)
UNION
SELECT * FROM (SELECT * FROM t2 ORDER BY num DESC)
}
} {3 4 11 12 13 14}
do_test tkt2339.6 {
execsql {
SELECT * FROM (SELECT * FROM t1 ORDER BY num DESC LIMIT 2)
EXCEPT
SELECT * FROM (SELECT * FROM t2 ORDER BY num DESC)
}
} {3 4}
do_test tkt2339.7 {
execsql {
SELECT * FROM (SELECT * FROM t1 LIMIT 2)
UNION
SELECT * FROM (SELECT * FROM t2 ORDER BY num DESC LIMIT 2)
}
} {1 2 13 14}
do_test tkt2339.8 {
execsql {
SELECT * FROM (SELECT * FROM t1 LIMIT 2)
UNION
SELECT * FROM (SELECT * FROM t2 LIMIT 2)
}
} {1 2 11 12}
do_test tkt2339.9 {
execsql {
SELECT * FROM (SELECT * FROM t1 ORDER BY num DESC LIMIT 2)
UNION
SELECT * FROM (SELECT * FROM t2 LIMIT 2)
}
} {3 4 11 12}
finish_test
|
