Annotation of embedaddon/sqlite3/test/cse.test, revision 1.1.1.1
1.1 misho 1: # 2008 April 1
2: #
3: # The author disclaims copyright to this source code. In place of
4: # a legal notice, here is a blessing:
5: #
6: # May you do good and not evil.
7: # May you find forgiveness for yourself and forgive others.
8: # May you share freely, never taking more than you give.
9: #
10: #***********************************************************************
11: #
12: # Test cases designed to exercise and verify the logic for
13: # factoring constant expressions out of loops and for
14: # common subexpression eliminations.
15: #
16: # $Id: cse.test,v 1.6 2008/08/04 03:51:24 danielk1977 Exp $
17: #
18:
19: set testdir [file dirname $argv0]
20: source $testdir/tester.tcl
21:
22: do_test cse-1.1 {
23: execsql {
24: CREATE TABLE t1(a INTEGER PRIMARY KEY, b, c, d, e, f);
25: INSERT INTO t1 VALUES(1,11,12,13,14,15);
26: INSERT INTO t1 VALUES(2,21,22,23,24,25);
27: }
28: execsql {
29: SELECT b, -b, ~b, NOT b, NOT NOT b, b-b, b+b, b*b, b/b, b FROM t1
30: }
31: } {11 -11 -12 0 1 0 22 121 1 11 21 -21 -22 0 1 0 42 441 1 21}
32: do_test cse-1.2 {
33: execsql {
34: SELECT b, b%b, b==b, b!=b, b<b, b<=b, b IS NULL, b NOT NULL, b FROM t1
35: }
36: } {11 0 1 0 0 1 0 1 11 21 0 1 0 0 1 0 1 21}
37: do_test cse-1.3 {
38: execsql {
39: SELECT b, abs(b), coalesce(b,-b,NOT b,c,NOT c), c, -c FROM t1;
40: }
41: } {11 11 11 12 -12 21 21 21 22 -22}
42: do_test cse-1.4 {
43: execsql {
44: SELECT CASE WHEN a==1 THEN b ELSE c END, b, c FROM t1
45: }
46: } {11 11 12 22 21 22}
47: do_test cse-1.5 {
48: execsql {
49: SELECT CASE a WHEN 1 THEN b WHEN 2 THEN c ELSE d END, b, c, d FROM t1
50: }
51: } {11 11 12 13 22 21 22 23}
52: do_test cse-1.6.1 {
53: execsql {
54: SELECT CASE b WHEN 11 THEN -b WHEN 21 THEN -c ELSE -d END, b, c, d FROM t1
55: }
56: } {-11 11 12 13 -22 21 22 23}
57: do_test cse-1.6.2 {
58: execsql {
59: SELECT CASE b+1 WHEN c THEN d WHEN e THEN f ELSE 999 END, b, c, d FROM t1
60: }
61: } {13 11 12 13 23 21 22 23}
62: do_test cse-1.6.3 {
63: execsql {
64: SELECT CASE WHEN b THEN d WHEN e THEN f ELSE 999 END, b, c, d FROM t1
65: }
66: } {13 11 12 13 23 21 22 23}
67: do_test cse-1.6.4 {
68: execsql {
69: SELECT b, c, d, CASE WHEN b THEN d WHEN e THEN f ELSE 999 END FROM t1
70: }
71: } {11 12 13 13 21 22 23 23}
72: do_test cse-1.6.5 {
73: execsql {
74: SELECT b, c, d, CASE WHEN 0 THEN d WHEN e THEN f ELSE 999 END FROM t1
75: }
76: } {11 12 13 15 21 22 23 25}
77: do_test cse-1.7 {
78: execsql {
79: SELECT a, -a, ~a, NOT a, NOT NOT a, a-a, a+a, a*a, a/a, a FROM t1
80: }
81: } {1 -1 -2 0 1 0 2 1 1 1 2 -2 -3 0 1 0 4 4 1 2}
82: do_test cse-1.8 {
83: execsql {
84: SELECT a, a%a, a==a, a!=a, a<a, a<=a, a IS NULL, a NOT NULL, a FROM t1
85: }
86: } {1 0 1 0 0 1 0 1 1 2 0 1 0 0 1 0 1 2}
87: do_test cse-1.9 {
88: execsql {
89: SELECT NOT b, ~b, NOT NOT b, b FROM t1
90: }
91: } {0 -12 1 11 0 -22 1 21}
92: do_test cse-1.10 {
93: execsql {
94: SELECT CAST(b AS integer), typeof(b), CAST(b AS text), typeof(b) FROM t1
95: }
96: } {11 integer 11 integer 21 integer 21 integer}
97: ifcapable compound {
98: do_test cse-1.11 {
99: execsql {
100: SELECT *,* FROM t1 WHERE a=2
101: UNION ALL
102: SELECT *,* FROM t1 WHERE a=1
103: }
104: } {2 21 22 23 24 25 2 21 22 23 24 25 1 11 12 13 14 15 1 11 12 13 14 15}
105: do_test cse-1.12 {
106: execsql {
107: SELECT coalesce(b,c,d,e), a, b, c, d, e FROM t1 WHERE a=2
108: UNION ALL
109: SELECT coalesce(e,d,c,b), e, d, c, b, a FROM t1 WHERE a=1
110: }
111: } {21 2 21 22 23 24 14 14 13 12 11 1}
112: }
113: do_test cse-1.13 {
114: execsql {
115: SELECT upper(b), typeof(b), b FROM t1
116: }
117: } {11 integer 11 21 integer 21}
118: do_test cse-1.14 {
119: execsql {
120: SELECT b, typeof(b), upper(b), typeof(b), b FROM t1
121: }
122: } {11 integer 11 integer 11 21 integer 21 integer 21}
123:
124: # Overflow the column cache. Create queries involving more and more
125: # columns until the cache overflows. Verify correct operation throughout.
126: #
127: do_test cse-2.1 {
128: execsql {
129: CREATE TABLE t2(a0,a1,a2,a3,a4,a5,a6,a7,a8,a9,
130: a10,a11,a12,a13,a14,a15,a16,a17,a18,a19,
131: a20,a21,a22,a23,a24,a25,a26,a27,a28,a29,
132: a30,a31,a32,a33,a34,a35,a36,a37,a38,a39,
133: a40,a41,a42,a43,a44,a45,a46,a47,a48,a49);
134: INSERT INTO t2 VALUES(0,1,2,3,4,5,6,7,8,9,
135: 10,11,12,13,14,15,16,17,18,19,
136: 20,21,22,23,24,25,26,27,28,29,
137: 30,31,32,33,34,35,36,37,38,39,
138: 40,41,42,43,44,45,46,47,48,49);
139: SELECT * FROM t2;
140: }
141: } {0 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}
142:
143: for {set i 1} {$i<100} {incr i} {
144: set n [expr {int(rand()*44)+5}]
145: set colset {}
146: set answer {}
147: for {set j 0} {$j<$n} {incr j} {
148: set r [expr {$j+int(rand()*5)}]
149: if {$r>49} {set r [expr {99-$r}]}
150: lappend colset a$j a$r
151: lappend answer $j $r
152: }
153: set sql "SELECT [join $colset ,] FROM t2"
154: do_test cse-2.2.$i {
155: # explain $::sql
156: execsql $::sql
157: } $answer
158: }
159:
160: finish_test
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