| blob | 990a623e54f798c003d15491de7421389f66992a |
2 #pragma ident "%Z%%M% %I% %E% SMI"
4 # 2002 May 24
5 #
6 # The author disclaims copyright to this source code. In place of
7 # a legal notice, here is a blessing:
8 #
9 # May you do good and not evil.
10 # May you find forgiveness for yourself and forgive others.
11 # May you share freely, never taking more than you give.
12 #
13 #***********************************************************************
14 # This file implements regression tests for SQLite library.
15 #
16 # This file implements tests for joins, including outer joins.
17 #
18 # $Id: join.test,v 1.11 2003/09/27 13:39:40 drh Exp $
20 set testdir [file dirname $argv0]
21 source $testdir/tester.tcl
23 do_test join-1.1 {
24 execsql {
25 CREATE TABLE t1(a,b,c);
26 INSERT INTO t1 VALUES(1,2,3);
27 INSERT INTO t1 VALUES(2,3,4);
28 INSERT INTO t1 VALUES(3,4,5);
29 SELECT * FROM t1;
30 }
31 } {1 2 3 2 3 4 3 4 5}
32 do_test join-1.2 {
33 execsql {
34 CREATE TABLE t2(b,c,d);
35 INSERT INTO t2 VALUES(1,2,3);
36 INSERT INTO t2 VALUES(2,3,4);
37 INSERT INTO t2 VALUES(3,4,5);
38 SELECT * FROM t2;
39 }
40 } {1 2 3 2 3 4 3 4 5}
42 do_test join-1.3 {
43 execsql2 {
44 SELECT * FROM t1 NATURAL JOIN t2;
45 }
46 } {t1.a 1 t1.b 2 t1.c 3 t2.d 4 t1.a 2 t1.b 3 t1.c 4 t2.d 5}
47 do_test join-1.3.1 {
48 execsql2 {
49 SELECT * FROM t2 NATURAL JOIN t1;
50 }
51 } {t2.b 2 t2.c 3 t2.d 4 t1.a 1 t2.b 3 t2.c 4 t2.d 5 t1.a 2}
52 do_test join-1.4 {
53 execsql2 {
54 SELECT * FROM t1 INNER JOIN t2 USING(b,c);
55 }
56 } {t1.a 1 t1.b 2 t1.c 3 t2.d 4 t1.a 2 t1.b 3 t1.c 4 t2.d 5}
57 do_test join-1.5 {
58 execsql2 {
59 SELECT * FROM t1 INNER JOIN t2 USING(b);
60 }
61 } {t1.a 1 t1.b 2 t1.c 3 t2.c 3 t2.d 4 t1.a 2 t1.b 3 t1.c 4 t2.c 4 t2.d 5}
62 do_test join-1.6 {
63 execsql2 {
64 SELECT * FROM t1 INNER JOIN t2 USING(c);
65 }
66 } {t1.a 1 t1.b 2 t1.c 3 t2.b 2 t2.d 4 t1.a 2 t1.b 3 t1.c 4 t2.b 3 t2.d 5}
67 do_test join-1.7 {
68 execsql2 {
69 SELECT * FROM t1 INNER JOIN t2 USING(c,b);
70 }
71 } {t1.a 1 t1.b 2 t1.c 3 t2.d 4 t1.a 2 t1.b 3 t1.c 4 t2.d 5}
73 do_test join-1.8 {
74 execsql {
75 SELECT * FROM t1 NATURAL CROSS JOIN t2;
76 }
77 } {1 2 3 4 2 3 4 5}
78 do_test join-1.9 {
79 execsql {
80 SELECT * FROM t1 CROSS JOIN t2 USING(b,c);
81 }
82 } {1 2 3 4 2 3 4 5}
83 do_test join-1.10 {
84 execsql {
85 SELECT * FROM t1 NATURAL INNER JOIN t2;
86 }
87 } {1 2 3 4 2 3 4 5}
88 do_test join-1.11 {
89 execsql {
90 SELECT * FROM t1 INNER JOIN t2 USING(b,c);
91 }
92 } {1 2 3 4 2 3 4 5}
93 do_test join-1.12 {
94 execsql {
95 SELECT * FROM t1 natural inner join t2;
96 }
97 } {1 2 3 4 2 3 4 5}
98 do_test join-1.13 {
99 execsql2 {
100 SELECT * FROM t1 NATURAL JOIN
101 (SELECT b as 'c', c as 'd', d as 'e' FROM t2) as t3
102 }
103 } {t1.a 1 t1.b 2 t1.c 3 t3.d 4 t3.e 5}
104 do_test join-1.14 {
105 execsql2 {
106 SELECT * FROM (SELECT b as 'c', c as 'd', d as 'e' FROM t2) as 'tx'
107 NATURAL JOIN t1
108 }
109 } {tx.c 3 tx.d 4 tx.e 5 t1.a 1 t1.b 2}
111 do_test join-1.15 {
112 execsql {
113 CREATE TABLE t3(c,d,e);
114 INSERT INTO t3 VALUES(2,3,4);
115 INSERT INTO t3 VALUES(3,4,5);
116 INSERT INTO t3 VALUES(4,5,6);
117 SELECT * FROM t3;
118 }
119 } {2 3 4 3 4 5 4 5 6}
120 do_test join-1.16 {
121 execsql {
122 SELECT * FROM t1 natural join t2 natural join t3;
123 }
124 } {1 2 3 4 5 2 3 4 5 6}
125 do_test join-1.17 {
126 execsql2 {
127 SELECT * FROM t1 natural join t2 natural join t3;
128 }
129 } {t1.a 1 t1.b 2 t1.c 3 t2.d 4 t3.e 5 t1.a 2 t1.b 3 t1.c 4 t2.d 5 t3.e 6}
130 do_test join-1.18 {
131 execsql {
132 CREATE TABLE t4(d,e,f);
133 INSERT INTO t4 VALUES(2,3,4);
134 INSERT INTO t4 VALUES(3,4,5);
135 INSERT INTO t4 VALUES(4,5,6);
136 SELECT * FROM t4;
137 }
138 } {2 3 4 3 4 5 4 5 6}
139 do_test join-1.19 {
140 execsql {
141 SELECT * FROM t1 natural join t2 natural join t4;
142 }
143 } {1 2 3 4 5 6}
144 do_test join-1.19 {
145 execsql2 {
146 SELECT * FROM t1 natural join t2 natural join t4;
147 }
148 } {t1.a 1 t1.b 2 t1.c 3 t2.d 4 t4.e 5 t4.f 6}
149 do_test join-1.20 {
150 execsql {
151 SELECT * FROM t1 natural join t2 natural join t3 WHERE t1.a=1
152 }
153 } {1 2 3 4 5}
155 do_test join-2.1 {
156 execsql {
157 SELECT * FROM t1 NATURAL LEFT JOIN t2;
158 }
159 } {1 2 3 4 2 3 4 5 3 4 5 {}}
160 do_test join-2.2 {
161 execsql {
162 SELECT * FROM t2 NATURAL LEFT OUTER JOIN t1;
163 }
164 } {1 2 3 {} 2 3 4 1 3 4 5 2}
165 do_test join-2.3 {
166 catchsql {
167 SELECT * FROM t1 NATURAL RIGHT OUTER JOIN t2;
168 }
169 } {1 {RIGHT and FULL OUTER JOINs are not currently supported}}
170 do_test join-2.4 {
171 execsql {
172 SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.d
173 }
174 } {1 2 3 {} {} {} 2 3 4 {} {} {} 3 4 5 1 2 3}
175 do_test join-2.5 {
176 execsql {
177 SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.d WHERE t1.a>1
178 }
179 } {2 3 4 {} {} {} 3 4 5 1 2 3}
180 do_test join-2.6 {
181 execsql {
182 SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.d WHERE t2.b IS NULL OR t2.b>1
183 }
184 } {1 2 3 {} {} {} 2 3 4 {} {} {}}
186 do_test join-3.1 {
187 catchsql {
188 SELECT * FROM t1 NATURAL JOIN t2 ON t1.a=t2.b;
189 }
190 } {1 {a NATURAL join may not have an ON or USING clause}}
191 do_test join-3.2 {
192 catchsql {
193 SELECT * FROM t1 NATURAL JOIN t2 USING(b);
194 }
195 } {1 {a NATURAL join may not have an ON or USING clause}}
196 do_test join-3.3 {
197 catchsql {
198 SELECT * FROM t1 JOIN t2 ON t1.a=t2.b USING(b);
199 }
200 } {1 {cannot have both ON and USING clauses in the same join}}
201 do_test join-3.4 {
202 catchsql {
203 SELECT * FROM t1 JOIN t2 USING(a);
204 }
205 } {1 {cannot join using column a - column not present in both tables}}
206 do_test join-3.5 {
207 catchsql {
208 SELECT * FROM t1 USING(a);
209 }
210 } {0 {1 2 3 2 3 4 3 4 5}}
211 do_test join-3.6 {
212 catchsql {
213 SELECT * FROM t1 JOIN t2 ON t3.a=t2.b;
214 }
215 } {1 {no such column: t3.a}}
216 do_test join-3.7 {
217 catchsql {
218 SELECT * FROM t1 INNER OUTER JOIN t2;
219 }
220 } {1 {unknown or unsupported join type: INNER OUTER}}
221 do_test join-3.7 {
222 catchsql {
223 SELECT * FROM t1 LEFT BOGUS JOIN t2;
224 }
225 } {1 {unknown or unsupported join type: LEFT BOGUS}}
227 do_test join-4.1 {
228 execsql {
229 BEGIN;
230 CREATE TABLE t5(a INTEGER PRIMARY KEY);
231 CREATE TABLE t6(a INTEGER);
232 INSERT INTO t6 VALUES(NULL);
233 INSERT INTO t6 VALUES(NULL);
234 INSERT INTO t6 SELECT * FROM t6;
235 INSERT INTO t6 SELECT * FROM t6;
236 INSERT INTO t6 SELECT * FROM t6;
237 INSERT INTO t6 SELECT * FROM t6;
238 INSERT INTO t6 SELECT * FROM t6;
239 INSERT INTO t6 SELECT * FROM t6;
240 COMMIT;
241 }
242 execsql {
243 SELECT * FROM t6 NATURAL JOIN t5;
244 }
245 } {}
246 do_test join-4.2 {
247 execsql {
248 SELECT * FROM t6, t5 WHERE t6.a<t5.a;
249 }
250 } {}
251 do_test join-4.3 {
252 execsql {
253 SELECT * FROM t6, t5 WHERE t6.a>t5.a;
254 }
255 } {}
256 do_test join-4.4 {
257 execsql {
258 UPDATE t6 SET a='xyz';
259 SELECT * FROM t6 NATURAL JOIN t5;
260 }
261 } {}
262 do_test join-4.6 {
263 execsql {
264 SELECT * FROM t6, t5 WHERE t6.a<t5.a;
265 }
266 } {}
267 do_test join-4.7 {
268 execsql {
269 SELECT * FROM t6, t5 WHERE t6.a>t5.a;
270 }
271 } {}
272 do_test join-4.8 {
273 execsql {
274 UPDATE t6 SET a=1;
275 SELECT * FROM t6 NATURAL JOIN t5;
276 }
277 } {}
278 do_test join-4.9 {
279 execsql {
280 SELECT * FROM t6, t5 WHERE t6.a<t5.a;
281 }
282 } {}
283 do_test join-4.10 {
284 execsql {
285 SELECT * FROM t6, t5 WHERE t6.a>t5.a;
286 }
287 } {}
289 do_test join-5.1 {
290 execsql {
291 BEGIN;
292 create table centros (id integer primary key, centro);
293 INSERT INTO centros VALUES(1,'xxx');
294 create table usuarios (id integer primary key, nombre, apellidos,
295 idcentro integer);
296 INSERT INTO usuarios VALUES(1,'a','aa',1);
297 INSERT INTO usuarios VALUES(2,'b','bb',1);
298 INSERT INTO usuarios VALUES(3,'c','cc',NULL);
299 create index idcentro on usuarios (idcentro);
300 END;
301 select usuarios.id, usuarios.nombre, centros.centro from
302 usuarios left outer join centros on usuarios.idcentro = centros.id;
303 }
304 } {1 a xxx 2 b xxx 3 c {}}
306 # A test for ticket #247.
307 #
308 do_test join-7.1 {
309 execsql {
310 CREATE TABLE t7 (x, y);
311 INSERT INTO t7 VALUES ("pa1", 1);
312 INSERT INTO t7 VALUES ("pa2", NULL);
313 INSERT INTO t7 VALUES ("pa3", NULL);
314 INSERT INTO t7 VALUES ("pa4", 2);
315 INSERT INTO t7 VALUES ("pa30", 131);
316 INSERT INTO t7 VALUES ("pa31", 130);
317 INSERT INTO t7 VALUES ("pa28", NULL);
319 CREATE TABLE t8 (a integer primary key, b);
320 INSERT INTO t8 VALUES (1, "pa1");
321 INSERT INTO t8 VALUES (2, "pa4");
322 INSERT INTO t8 VALUES (3, NULL);
323 INSERT INTO t8 VALUES (4, NULL);
324 INSERT INTO t8 VALUES (130, "pa31");
325 INSERT INTO t8 VALUES (131, "pa30");
327 SELECT coalesce(t8.a,999) from t7 LEFT JOIN t8 on y=a;
328 }
329 } {1 999 999 2 131 130 999}
331 # Make sure a left join where the right table is really a view that
332 # is itself a join works right. Ticket #306.
333 #
334 do_test join-8.1 {
335 execsql {
336 BEGIN;
337 CREATE TABLE t9(a INTEGER PRIMARY KEY, b);
338 INSERT INTO t9 VALUES(1,11);
339 INSERT INTO t9 VALUES(2,22);
340 CREATE TABLE t10(x INTEGER PRIMARY KEY, y);
341 INSERT INTO t10 VALUES(1,2);
342 INSERT INTO t10 VALUES(3,3);
343 CREATE TABLE t11(p INTEGER PRIMARY KEY, q);
344 INSERT INTO t11 VALUES(2,111);
345 INSERT INTO t11 VALUES(3,333);
346 CREATE VIEW v10_11 AS SELECT x, q FROM t10, t11 WHERE t10.y=t11.p;
347 COMMIT;
348 SELECT * FROM t9 LEFT JOIN v10_11 ON( a=x );
349 }
350 } {1 11 1 111 2 22 {} {}}
351 do_test join-8.2 {
352 execsql {
353 SELECT * FROM t9 LEFT JOIN (SELECT x, q FROM t10, t11 WHERE t10.y=t11.p)
354 ON( a=x);
355 }
356 } {1 11 1 111 2 22 {} {}}
357 do_test join-8.3 {
358 execsql {
359 SELECT * FROM v10_11 LEFT JOIN t9 ON( a=x );
360 }
361 } {1 111 1 11 3 333 {} {}}
363 # Ticket #350 describes a scenario where LEFT OUTER JOIN does not
364 # function correctly if the right table in the join is really
365 # subquery.
366 #
367 # To test the problem, we generate the same LEFT OUTER JOIN in two
368 # separate selects but with on using a subquery and the other calling
369 # the table directly. Then connect the two SELECTs using an EXCEPT.
370 # Both queries should generate the same results so the answer should
371 # be an empty set.
372 #
373 do_test join-9.1 {
374 execsql {
375 BEGIN;
376 CREATE TABLE t12(a,b);
377 INSERT INTO t12 VALUES(1,11);
378 INSERT INTO t12 VALUES(2,22);
379 CREATE TABLE t13(b,c);
380 INSERT INTO t13 VALUES(22,222);
381 COMMIT;
382 SELECT * FROM t12 NATURAL LEFT JOIN t13
383 EXCEPT
384 SELECT * FROM t12 NATURAL LEFT JOIN (SELECT * FROM t13 WHERE b>0);
385 }
386 } {}
387 do_test join-9.2 {
388 execsql {
389 CREATE VIEW v13 AS SELECT * FROM t13 WHERE b>0;
390 SELECT * FROM t12 NATURAL LEFT JOIN t13
391 EXCEPT
392 SELECT * FROM t12 NATURAL LEFT JOIN v13;
393 }
394 } {}
396 finish_test