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
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
|
# 2012 Sept 27
#
# 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.
#
#***********************************************************************
# This file implements regression tests for SQLite library. The
# focus of this file is testing that the optimizations that disable
# ORDER BY clauses when the natural order of a query is correct.
#
set testdir [file dirname $argv0]
source $testdir/tester.tcl
set ::testprefix orderby2
# Generate test data for a join. Verify that the join gets the
# correct answer.
#
do_test 1.0 {
db eval {
CREATE TABLE t1(a INTEGER PRIMARY KEY, b);
INSERT INTO t1 VALUES(1,11), (2,22);
CREATE TABLE t2(d, e, UNIQUE(d,e));
INSERT INTO t2 VALUES(10, 'ten'), (11,'eleven'), (12,'twelve'),
(11, 'oneteen');
}
} {}
do_test 1.1a {
db eval {
SELECT e FROM t1, t2 WHERE a=1 AND d=b ORDER BY d, e;
}
} {eleven oneteen}
do_test 1.1b {
db eval {
EXPLAIN QUERY PLAN
SELECT e FROM t1, t2 WHERE a=1 AND d=b ORDER BY d, e;
}
} {~/ORDER BY/}
do_test 1.2a {
db eval {
SELECT e FROM t1, t2 WHERE a=1 AND d=b ORDER BY e;
}
} {eleven oneteen}
do_test 1.2b {
db eval {
EXPLAIN QUERY PLAN
SELECT e FROM t1, t2 WHERE a=1 AND d=b ORDER BY e;
}
} {~/ORDER BY/}
do_test 1.3a {
db eval {
SELECT e, b FROM t1, t2 WHERE a=1 ORDER BY d, e;
}
} {ten 11 eleven 11 oneteen 11 twelve 11}
do_test 1.3b {
db eval {
EXPLAIN QUERY PLAN
SELECT e, b FROM t1, t2 WHERE a=1 ORDER BY d, e;
}
} {~/ORDER BY/}
# The following tests derived from TH3 test module cov1/where34.test
#
do_test 2.0 {
db eval {
CREATE TABLE t31(a,b); CREATE INDEX t31ab ON t31(a,b);
CREATE TABLE t32(c,d); CREATE INDEX t32cd ON t32(c,d);
CREATE TABLE t33(e,f); CREATE INDEX t33ef ON t33(e,f);
CREATE TABLE t34(g,h); CREATE INDEX t34gh ON t34(g,h);
INSERT INTO t31 VALUES(1,4), (2,3), (1,3);
INSERT INTO t32 VALUES(4,5), (3,6), (3,7), (4,8);
INSERT INTO t33 VALUES(5,9), (7,10), (6,11), (8,12), (8,13), (7,14);
INSERT INTO t34 VALUES(11,20), (10,21), (12,22), (9,23), (13,24),
(14,25), (12,26);
SELECT a||','||c||','||e||','||g FROM t31, t32, t33, t34
WHERE c=b AND e=d AND g=f
ORDER BY a ASC, c ASC, e DESC, g ASC;
}
} {1,3,7,10 1,3,7,14 1,3,6,11 1,4,8,12 1,4,8,12 1,4,8,13 1,4,5,9 2,3,7,10 2,3,7,14 2,3,6,11}
do_test 2.1 {
db eval {
SELECT a||','||c||','||e||','||g FROM t31, t32, t33, t34
WHERE c=b AND e=d AND g=f
ORDER BY +a ASC, +c ASC, +e DESC, +g ASC;
}
} {1,3,7,10 1,3,7,14 1,3,6,11 1,4,8,12 1,4,8,12 1,4,8,13 1,4,5,9 2,3,7,10 2,3,7,14 2,3,6,11}
do_test 2.2 {
db eval {
SELECT a||','||c||','||e||','||g FROM t31, t32, t33, t34
WHERE c=b AND e=d AND g=f
ORDER BY a ASC, c ASC, e ASC, g ASC;
}
} {1,3,6,11 1,3,7,10 1,3,7,14 1,4,5,9 1,4,8,12 1,4,8,12 1,4,8,13 2,3,6,11 2,3,7,10 2,3,7,14}
do_test 2.3 {
optimization_control db cover-idx-scan off
db cache flush
db eval {
SELECT a||','||c||','||e||','||g FROM t31, t32, t33, t34
WHERE c=b AND e=d AND g=f
ORDER BY a ASC, c ASC, e ASC, g ASC;
}
} {1,3,6,11 1,3,7,10 1,3,7,14 1,4,5,9 1,4,8,12 1,4,8,12 1,4,8,13 2,3,6,11 2,3,7,10 2,3,7,14}
optimization_control db all on
db cache flush
finish_test
|
