|
sl@0
|
1 |
# 2008 August 28
|
|
sl@0
|
2 |
#
|
|
sl@0
|
3 |
# The author disclaims copyright to this source code. In place of
|
|
sl@0
|
4 |
# a legal notice, here is a blessing:
|
|
sl@0
|
5 |
#
|
|
sl@0
|
6 |
# May you do good and not evil.
|
|
sl@0
|
7 |
# May you find forgiveness for yourself and forgive others.
|
|
sl@0
|
8 |
# May you share freely, never taking more than you give.
|
|
sl@0
|
9 |
#
|
|
sl@0
|
10 |
#***********************************************************************
|
|
sl@0
|
11 |
#
|
|
sl@0
|
12 |
# This file implements regression tests for SQLite library. The
|
|
sl@0
|
13 |
# focus of this script is correct code generation of aliased result-set
|
|
sl@0
|
14 |
# values. See ticket #3343.
|
|
sl@0
|
15 |
#
|
|
sl@0
|
16 |
# $Id: alias.test,v 1.1 2008/08/29 02:14:03 drh Exp $
|
|
sl@0
|
17 |
#
|
|
sl@0
|
18 |
set testdir [file dirname $argv0]
|
|
sl@0
|
19 |
source $testdir/tester.tcl
|
|
sl@0
|
20 |
|
|
sl@0
|
21 |
# A procedure to return a sequence of increasing integers.
|
|
sl@0
|
22 |
#
|
|
sl@0
|
23 |
namespace eval ::seq {
|
|
sl@0
|
24 |
variable counter 0
|
|
sl@0
|
25 |
proc value {args} {
|
|
sl@0
|
26 |
variable counter
|
|
sl@0
|
27 |
incr counter
|
|
sl@0
|
28 |
return $counter
|
|
sl@0
|
29 |
}
|
|
sl@0
|
30 |
proc reset {} {
|
|
sl@0
|
31 |
variable counter
|
|
sl@0
|
32 |
set counter 0
|
|
sl@0
|
33 |
}
|
|
sl@0
|
34 |
}
|
|
sl@0
|
35 |
|
|
sl@0
|
36 |
|
|
sl@0
|
37 |
do_test alias-1.1 {
|
|
sl@0
|
38 |
db function sequence ::seq::value
|
|
sl@0
|
39 |
db eval {
|
|
sl@0
|
40 |
CREATE TABLE t1(x);
|
|
sl@0
|
41 |
INSERT INTO t1 VALUES(9);
|
|
sl@0
|
42 |
INSERT INTO t1 VALUES(8);
|
|
sl@0
|
43 |
INSERT INTO t1 VALUES(7);
|
|
sl@0
|
44 |
SELECT x, sequence() FROM t1;
|
|
sl@0
|
45 |
}
|
|
sl@0
|
46 |
} {9 1 8 2 7 3}
|
|
sl@0
|
47 |
do_test alias-1.2 {
|
|
sl@0
|
48 |
::seq::reset
|
|
sl@0
|
49 |
db eval {
|
|
sl@0
|
50 |
--pragma vdbe_listing=on; pragma vdbe_trace=on;
|
|
sl@0
|
51 |
SELECT x, sequence() AS y FROM t1 WHERE y>0
|
|
sl@0
|
52 |
}
|
|
sl@0
|
53 |
} {9 1 8 2 7 3}
|
|
sl@0
|
54 |
do_test alias-1.3 {
|
|
sl@0
|
55 |
::seq::reset
|
|
sl@0
|
56 |
db eval {
|
|
sl@0
|
57 |
SELECT x, sequence() AS y FROM t1 WHERE y>0 AND y<99
|
|
sl@0
|
58 |
}
|
|
sl@0
|
59 |
} {9 1 8 2 7 3}
|
|
sl@0
|
60 |
do_test alias-1.4 {
|
|
sl@0
|
61 |
::seq::reset
|
|
sl@0
|
62 |
db eval {
|
|
sl@0
|
63 |
SELECT x, sequence() AS y FROM t1 WHERE y>0 AND y<99 AND y!=55
|
|
sl@0
|
64 |
}
|
|
sl@0
|
65 |
} {9 1 8 2 7 3}
|
|
sl@0
|
66 |
do_test alias-1.5 {
|
|
sl@0
|
67 |
::seq::reset
|
|
sl@0
|
68 |
db eval {
|
|
sl@0
|
69 |
SELECT x, sequence() AS y FROM t1
|
|
sl@0
|
70 |
WHERE y>0 AND y<99 AND y!=55 AND y NOT IN (56,57,58)
|
|
sl@0
|
71 |
AND y NOT LIKE 'abc%' AND y%10==2
|
|
sl@0
|
72 |
}
|
|
sl@0
|
73 |
} {8 2}
|
|
sl@0
|
74 |
do_test alias-1.6 {
|
|
sl@0
|
75 |
::seq::reset
|
|
sl@0
|
76 |
db eval {
|
|
sl@0
|
77 |
SELECT x, sequence() AS y FROM t1 WHERE y BETWEEN 0 AND 99
|
|
sl@0
|
78 |
}
|
|
sl@0
|
79 |
} {9 1 8 2 7 3}
|
|
sl@0
|
80 |
do_test alias-1.7 {
|
|
sl@0
|
81 |
::seq::reset
|
|
sl@0
|
82 |
db eval {
|
|
sl@0
|
83 |
SELECT x, sequence() AS y FROM t1 WHERE y IN (55,66,3)
|
|
sl@0
|
84 |
}
|
|
sl@0
|
85 |
} {7 3}
|
|
sl@0
|
86 |
do_test alias-1.8 {
|
|
sl@0
|
87 |
::seq::reset
|
|
sl@0
|
88 |
db eval {
|
|
sl@0
|
89 |
SELECT x, 1-sequence() AS y FROM t1 ORDER BY y
|
|
sl@0
|
90 |
}
|
|
sl@0
|
91 |
} {7 -2 8 -1 9 0}
|
|
sl@0
|
92 |
do_test alias-1.9 {
|
|
sl@0
|
93 |
::seq::reset
|
|
sl@0
|
94 |
db eval {
|
|
sl@0
|
95 |
SELECT x, sequence() AS y FROM t1 ORDER BY -y
|
|
sl@0
|
96 |
}
|
|
sl@0
|
97 |
} {7 3 8 2 9 1}
|
|
sl@0
|
98 |
do_test alias-1.10 {
|
|
sl@0
|
99 |
::seq::reset
|
|
sl@0
|
100 |
db eval {
|
|
sl@0
|
101 |
SELECT x, sequence() AS y FROM t1 ORDER BY x%2, y
|
|
sl@0
|
102 |
}
|
|
sl@0
|
103 |
} {8 2 9 1 7 3}
|
|
sl@0
|
104 |
|
|
sl@0
|
105 |
unset -nocomplain random_int_list
|
|
sl@0
|
106 |
set random_int_list [db eval {
|
|
sl@0
|
107 |
SELECT random()&2147483647 AS r FROM t1, t1, t1, t1 ORDER BY r
|
|
sl@0
|
108 |
}]
|
|
sl@0
|
109 |
do_test alias-1.11 {
|
|
sl@0
|
110 |
lsort -integer $::random_int_list
|
|
sl@0
|
111 |
} $random_int_list
|
|
sl@0
|
112 |
|
|
sl@0
|
113 |
|
|
sl@0
|
114 |
do_test alias-2.1 {
|
|
sl@0
|
115 |
db eval {
|
|
sl@0
|
116 |
SELECT 4 UNION SELECT 1 ORDER BY 1
|
|
sl@0
|
117 |
}
|
|
sl@0
|
118 |
} {1 4}
|
|
sl@0
|
119 |
do_test alias-2.2 {
|
|
sl@0
|
120 |
db eval {
|
|
sl@0
|
121 |
SELECT 4 UNION SELECT 1 UNION SELECT 9 ORDER BY 1
|
|
sl@0
|
122 |
}
|
|
sl@0
|
123 |
} {1 4 9}
|
|
sl@0
|
124 |
|
|
sl@0
|
125 |
if 0 {
|
|
sl@0
|
126 |
# Aliases in the GROUP BY clause cause the expression to be evaluated
|
|
sl@0
|
127 |
# twice in the current implementation. This might change in the future.
|
|
sl@0
|
128 |
#
|
|
sl@0
|
129 |
do_test alias-3.1 {
|
|
sl@0
|
130 |
::seq::reset
|
|
sl@0
|
131 |
db eval {
|
|
sl@0
|
132 |
SELECT sequence(*) AS y, count(*) AS z FROM t1 GROUP BY y ORDER BY z, y
|
|
sl@0
|
133 |
}
|
|
sl@0
|
134 |
} {1 1 2 1 3 1}
|
|
sl@0
|
135 |
}
|
|
sl@0
|
136 |
|
|
sl@0
|
137 |
finish_test
|