wasCSharpSQLite – Blame information for rev 1

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1 office 1 # 2001 September 15
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 # This file implements regression tests for SQLite library. The
12 # focus of this file is testing aggregate functions and the
13 # GROUP BY and HAVING clauses of SELECT statements.
14 #
15 # $Id: select5.test,v 1.20 2008/08/21 14:15:59 drh Exp $
16  
17 set testdir [file dirname $argv0]
18 source $testdir/tester.tcl
19  
20 # Build some test data
21 #
22 execsql {
23 CREATE TABLE t1(x int, y int);
24 BEGIN;
25 }
26 for {set i 1} {$i<32} {incr i} {
27 for {set j 0} {(1<<$j)<$i} {incr j} {}
28 execsql "INSERT INTO t1 VALUES([expr {32-$i}],[expr {10-$j}])"
29 }
30 execsql {
31 COMMIT
32 }
33  
34 do_test select5-1.0 {
35 execsql {SELECT DISTINCT y FROM t1 ORDER BY y}
36 } {5 6 7 8 9 10}
37  
38 # Sort by an aggregate function.
39 #
40 do_test select5-1.1 {
41 execsql {SELECT y, count(*) FROM t1 GROUP BY y ORDER BY y}
42 } {5 15 6 8 7 4 8 2 9 1 10 1}
43 do_test select5-1.2 {
44 execsql {SELECT y, count(*) FROM t1 GROUP BY y ORDER BY count(*), y}
45 } {9 1 10 1 8 2 7 4 6 8 5 15}
46 do_test select5-1.3 {
47 execsql {SELECT count(*), y FROM t1 GROUP BY y ORDER BY count(*), y}
48 } {1 9 1 10 2 8 4 7 8 6 15 5}
49  
50 # Some error messages associated with aggregates and GROUP BY
51 #
52 do_test select5-2.1.1 {
53 catchsql {
54 SELECT y, count(*) FROM t1 GROUP BY z ORDER BY y
55 }
56 } {1 {no such column: z}}
57 do_test select5-2.1.2 {
58 catchsql {
59 SELECT y, count(*) FROM t1 GROUP BY temp.t1.y ORDER BY y
60 }
61 } {1 {no such column: temp.t1.y}}
62 do_test select5-2.2 {
63 set v [catch {execsql {
64 SELECT y, count(*) FROM t1 GROUP BY z(y) ORDER BY y
65 }} msg]
66 lappend v $msg
67 } {1 {no such function: z}}
68 do_test select5-2.3 {
69 set v [catch {execsql {
70 SELECT y, count(*) FROM t1 GROUP BY y HAVING count(*)<3 ORDER BY y
71 }} msg]
72 lappend v $msg
73 } {0 {8 2 9 1 10 1}}
74 do_test select5-2.4 {
75 set v [catch {execsql {
76 SELECT y, count(*) FROM t1 GROUP BY y HAVING z(y)<3 ORDER BY y
77 }} msg]
78 lappend v $msg
79 } {1 {no such function: z}}
80 do_test select5-2.5 {
81 set v [catch {execsql {
82 SELECT y, count(*) FROM t1 GROUP BY y HAVING count(*)<z ORDER BY y
83 }} msg]
84 lappend v $msg
85 } {1 {no such column: z}}
86  
87 # Get the Agg function to rehash in vdbe.c
88 #
89 do_test select5-3.1 {
90 execsql {
91 SELECT x, count(*), avg(y) FROM t1 GROUP BY x HAVING x<4 ORDER BY x
92 }
93 } {1 1 5.0 2 1 5.0 3 1 5.0}
94  
95 # Run various aggregate functions when the count is zero.
96 #
97 do_test select5-4.1 {
98 execsql {
99 SELECT avg(x) FROM t1 WHERE x>100
100 }
101 } {{}}
102 do_test select5-4.2 {
103 execsql {
104 SELECT count(x) FROM t1 WHERE x>100
105 }
106 } {0}
107 do_test select5-4.3 {
108 execsql {
109 SELECT min(x) FROM t1 WHERE x>100
110 }
111 } {{}}
112 do_test select5-4.4 {
113 execsql {
114 SELECT max(x) FROM t1 WHERE x>100
115 }
116 } {{}}
117 do_test select5-4.5 {
118 execsql {
119 SELECT sum(x) FROM t1 WHERE x>100
120 }
121 } {{}}
122  
123 # Some tests for queries with a GROUP BY clause but no aggregate functions.
124 #
125 # Note: The query in test cases 5.1 through 5.5 are not legal SQL. So if the
126 # implementation changes in the future and it returns different results,
127 # this is not such a big deal.
128 #
129 do_test select5-5.1 {
130 execsql {
131 CREATE TABLE t2(a, b, c);
132 INSERT INTO t2 VALUES(1, 2, 3);
133 INSERT INTO t2 VALUES(1, 4, 5);
134 INSERT INTO t2 VALUES(6, 4, 7);
135 CREATE INDEX t2_idx ON t2(a);
136 }
137 } {}
138 do_test select5-5.2 {
139 execsql {
140 SELECT a FROM t2 GROUP BY a;
141 }
142 } {1 6}
143 do_test select5-5.3 {
144 execsql {
145 SELECT a FROM t2 WHERE a>2 GROUP BY a;
146 }
147 } {6}
148 do_test select5-5.4 {
149 execsql {
150 SELECT a, b FROM t2 GROUP BY a, b;
151 }
152 } {1 2 1 4 6 4}
153 do_test select5-5.5 {
154 execsql {
155 SELECT a, b FROM t2 GROUP BY a;
156 }
157 } {1 4 6 4}
158  
159 # Test rendering of columns for the GROUP BY clause.
160 #
161 do_test select5-5.11 {
162 execsql {
163 SELECT max(c), b*a, b, a FROM t2 GROUP BY b*a, b, a
164 }
165 } {3 2 2 1 5 4 4 1 7 24 4 6}
166  
167 # NULL compare equal to each other for the purposes of processing
168 # the GROUP BY clause.
169 #
170 do_test select5-6.1 {
171 execsql {
172 CREATE TABLE t3(x,y);
173 INSERT INTO t3 VALUES(1,NULL);
174 INSERT INTO t3 VALUES(2,NULL);
175 INSERT INTO t3 VALUES(3,4);
176 SELECT count(x), y FROM t3 GROUP BY y ORDER BY 1
177 }
178 } {1 4 2 {}}
179 do_test select5-6.2 {
180 execsql {
181 CREATE TABLE t4(x,y,z);
182 INSERT INTO t4 VALUES(1,2,NULL);
183 INSERT INTO t4 VALUES(2,3,NULL);
184 INSERT INTO t4 VALUES(3,NULL,5);
185 INSERT INTO t4 VALUES(4,NULL,6);
186 INSERT INTO t4 VALUES(4,NULL,6);
187 INSERT INTO t4 VALUES(5,NULL,NULL);
188 INSERT INTO t4 VALUES(5,NULL,NULL);
189 INSERT INTO t4 VALUES(6,7,8);
190 SELECT max(x), count(x), y, z FROM t4 GROUP BY y, z ORDER BY 1
191 }
192 } {1 1 2 {} 2 1 3 {} 3 1 {} 5 4 2 {} 6 5 2 {} {} 6 1 7 8}
193  
194 do_test select5-7.2 {
195 execsql {
196 SELECT count(*), count(x) as cnt FROM t4 GROUP BY y ORDER BY cnt;
197 }
198 } {1 1 1 1 1 1 5 5}
199  
200 # See ticket #3324.
201 #
202 do_test select5-8.1 {
203 execsql {
204 CREATE TABLE t8a(a,b);
205 CREATE TABLE t8b(x);
206 INSERT INTO t8a VALUES('one', 1);
207 INSERT INTO t8a VALUES('one', 2);
208 INSERT INTO t8a VALUES('two', 3);
209 INSERT INTO t8a VALUES('one', NULL);
210 INSERT INTO t8b(rowid,x) VALUES(1,111);
211 INSERT INTO t8b(rowid,x) VALUES(2,222);
212 INSERT INTO t8b(rowid,x) VALUES(3,333);
213 SELECT a, count(b) FROM t8a, t8b WHERE b=t8b.rowid GROUP BY a ORDER BY a;
214 }
215 } {one 2 two 1}
216 do_test select5-8.2 {
217 execsql {
218 SELECT a, count(b) FROM t8a, t8b WHERE b=+t8b.rowid GROUP BY a ORDER BY a;
219 }
220 } {one 2 two 1}
221 do_test select5-8.3 {
222 execsql {
223 SELECT t8a.a, count(t8a.b) FROM t8a, t8b WHERE t8a.b=t8b.rowid
224 GROUP BY 1 ORDER BY 1;
225 }
226 } {one 2 two 1}
227 do_test select5-8.4 {
228 execsql {
229 SELECT a, count(*) FROM t8a, t8b WHERE b=+t8b.rowid GROUP BY a ORDER BY a;
230 }
231 } {one 2 two 1}
232 do_test select5-8.5 {
233 execsql {
234 SELECT a, count(b) FROM t8a, t8b WHERE b<x GROUP BY a ORDER BY a;
235 }
236 } {one 6 two 3}
237 do_test select5-8.6 {
238 execsql {
239 SELECT a, count(t8a.b) FROM t8a, t8b WHERE b=t8b.rowid
240 GROUP BY a ORDER BY 2;
241 }
242 } {two 1 one 2}
243 do_test select5-8.7 {
244 execsql {
245 SELECT a, count(b) FROM t8a, t8b GROUP BY a ORDER BY 2;
246 }
247 } {two 3 one 6}
248 do_test select5-8.8 {
249 execsql {
250 SELECT a, count(*) FROM t8a, t8b GROUP BY a ORDER BY 2;
251 }
252 } {two 3 one 9}
253  
254  
255  
256  
257 finish_test