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1 #
2 # 2002 May 24
3 #
4 # The author disclaims copyright to this source code. In place of
5 # a legal notice, here is a blessing:
6 #
7 # May you do good and not evil.
8 # May you find forgiveness for yourself and forgive others.
9 # May you share freely, never taking more than you give.
10 #
11 #***********************************************************************
12 # This file implements regression tests for SQLite library.
13 #
14 # This file implements tests for joins, including outer joins.
15 #
16 # $Id: join.test,v 1.11 2003/09/27 13:39:40 drh Exp $
18 set testdir [file dirname $argv0]
19 source $testdir/tester.tcl
21 do_test join-1.1 {
22 execsql {
23 CREATE TABLE t1(a,b,c);
24 INSERT INTO t1 VALUES(1,2,3);
25 INSERT INTO t1 VALUES(2,3,4);
26 INSERT INTO t1 VALUES(3,4,5);
27 SELECT * FROM t1;
28 }
29 } {1 2 3 2 3 4 3 4 5}
30 do_test join-1.2 {
31 execsql {
32 CREATE TABLE t2(b,c,d);
33 INSERT INTO t2 VALUES(1,2,3);
34 INSERT INTO t2 VALUES(2,3,4);
35 INSERT INTO t2 VALUES(3,4,5);
36 SELECT * FROM t2;
37 }
38 } {1 2 3 2 3 4 3 4 5}
40 do_test join-1.3 {
41 execsql2 {
42 SELECT * FROM t1 NATURAL JOIN t2;
43 }
44 } {t1.a 1 t1.b 2 t1.c 3 t2.d 4 t1.a 2 t1.b 3 t1.c 4 t2.d 5}
45 do_test join-1.3.1 {
46 execsql2 {
47 SELECT * FROM t2 NATURAL JOIN t1;
48 }
49 } {t2.b 2 t2.c 3 t2.d 4 t1.a 1 t2.b 3 t2.c 4 t2.d 5 t1.a 2}
50 do_test join-1.4 {
51 execsql2 {
52 SELECT * FROM t1 INNER JOIN t2 USING(b,c);
53 }
54 } {t1.a 1 t1.b 2 t1.c 3 t2.d 4 t1.a 2 t1.b 3 t1.c 4 t2.d 5}
55 do_test join-1.5 {
56 execsql2 {
57 SELECT * FROM t1 INNER JOIN t2 USING(b);
58 }
59 } {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}
60 do_test join-1.6 {
61 execsql2 {
62 SELECT * FROM t1 INNER JOIN t2 USING(c);
63 }
64 } {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}
65 do_test join-1.7 {
66 execsql2 {
67 SELECT * FROM t1 INNER JOIN t2 USING(c,b);
68 }
69 } {t1.a 1 t1.b 2 t1.c 3 t2.d 4 t1.a 2 t1.b 3 t1.c 4 t2.d 5}
71 do_test join-1.8 {
72 execsql {
73 SELECT * FROM t1 NATURAL CROSS JOIN t2;
74 }
75 } {1 2 3 4 2 3 4 5}
76 do_test join-1.9 {
77 execsql {
78 SELECT * FROM t1 CROSS JOIN t2 USING(b,c);
79 }
80 } {1 2 3 4 2 3 4 5}
81 do_test join-1.10 {
82 execsql {
83 SELECT * FROM t1 NATURAL INNER JOIN t2;
84 }
85 } {1 2 3 4 2 3 4 5}
86 do_test join-1.11 {
87 execsql {
88 SELECT * FROM t1 INNER JOIN t2 USING(b,c);
89 }
90 } {1 2 3 4 2 3 4 5}
91 do_test join-1.12 {
92 execsql {
93 SELECT * FROM t1 natural inner join t2;
94 }
95 } {1 2 3 4 2 3 4 5}
96 do_test join-1.13 {
97 execsql2 {
98 SELECT * FROM t1 NATURAL JOIN
99 (SELECT b as 'c', c as 'd', d as 'e' FROM t2) as t3
100 }
101 } {t1.a 1 t1.b 2 t1.c 3 t3.d 4 t3.e 5}
102 do_test join-1.14 {
103 execsql2 {
104 SELECT * FROM (SELECT b as 'c', c as 'd', d as 'e' FROM t2) as 'tx'
105 NATURAL JOIN t1
106 }
107 } {tx.c 3 tx.d 4 tx.e 5 t1.a 1 t1.b 2}
109 do_test join-1.15 {
110 execsql {
111 CREATE TABLE t3(c,d,e);
112 INSERT INTO t3 VALUES(2,3,4);
113 INSERT INTO t3 VALUES(3,4,5);
114 INSERT INTO t3 VALUES(4,5,6);
115 SELECT * FROM t3;
116 }
117 } {2 3 4 3 4 5 4 5 6}
118 do_test join-1.16 {
119 execsql {
120 SELECT * FROM t1 natural join t2 natural join t3;
121 }
122 } {1 2 3 4 5 2 3 4 5 6}
123 do_test join-1.17 {
124 execsql2 {
125 SELECT * FROM t1 natural join t2 natural join t3;
126 }
127 } {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}
128 do_test join-1.18 {
129 execsql {
130 CREATE TABLE t4(d,e,f);
131 INSERT INTO t4 VALUES(2,3,4);
132 INSERT INTO t4 VALUES(3,4,5);
133 INSERT INTO t4 VALUES(4,5,6);
134 SELECT * FROM t4;
135 }
136 } {2 3 4 3 4 5 4 5 6}
137 do_test join-1.19 {
138 execsql {
139 SELECT * FROM t1 natural join t2 natural join t4;
140 }
141 } {1 2 3 4 5 6}
142 do_test join-1.19 {
143 execsql2 {
144 SELECT * FROM t1 natural join t2 natural join t4;
145 }
146 } {t1.a 1 t1.b 2 t1.c 3 t2.d 4 t4.e 5 t4.f 6}
147 do_test join-1.20 {
148 execsql {
149 SELECT * FROM t1 natural join t2 natural join t3 WHERE t1.a=1
150 }
151 } {1 2 3 4 5}
153 do_test join-2.1 {
154 execsql {
155 SELECT * FROM t1 NATURAL LEFT JOIN t2;
156 }
157 } {1 2 3 4 2 3 4 5 3 4 5 {}}
158 do_test join-2.2 {
159 execsql {
160 SELECT * FROM t2 NATURAL LEFT OUTER JOIN t1;
161 }
162 } {1 2 3 {} 2 3 4 1 3 4 5 2}
163 do_test join-2.3 {
164 catchsql {
165 SELECT * FROM t1 NATURAL RIGHT OUTER JOIN t2;
166 }
167 } {1 {RIGHT and FULL OUTER JOINs are not currently supported}}
168 do_test join-2.4 {
169 execsql {
170 SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.d
171 }
172 } {1 2 3 {} {} {} 2 3 4 {} {} {} 3 4 5 1 2 3}
173 do_test join-2.5 {
174 execsql {
175 SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.d WHERE t1.a>1
176 }
177 } {2 3 4 {} {} {} 3 4 5 1 2 3}
178 do_test join-2.6 {
179 execsql {
180 SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.d WHERE t2.b IS NULL OR t2.b>1
181 }
182 } {1 2 3 {} {} {} 2 3 4 {} {} {}}
184 do_test join-3.1 {
185 catchsql {
186 SELECT * FROM t1 NATURAL JOIN t2 ON t1.a=t2.b;
187 }
188 } {1 {a NATURAL join may not have an ON or USING clause}}
189 do_test join-3.2 {
190 catchsql {
191 SELECT * FROM t1 NATURAL JOIN t2 USING(b);
192 }
193 } {1 {a NATURAL join may not have an ON or USING clause}}
194 do_test join-3.3 {
195 catchsql {
196 SELECT * FROM t1 JOIN t2 ON t1.a=t2.b USING(b);
197 }
198 } {1 {cannot have both ON and USING clauses in the same join}}
199 do_test join-3.4 {
200 catchsql {
201 SELECT * FROM t1 JOIN t2 USING(a);
202 }
203 } {1 {cannot join using column a - column not present in both tables}}
204 do_test join-3.5 {
205 catchsql {
206 SELECT * FROM t1 USING(a);
207 }
208 } {0 {1 2 3 2 3 4 3 4 5}}
209 do_test join-3.6 {
210 catchsql {
211 SELECT * FROM t1 JOIN t2 ON t3.a=t2.b;
212 }
213 } {1 {no such column: t3.a}}
214 do_test join-3.7 {
215 catchsql {
216 SELECT * FROM t1 INNER OUTER JOIN t2;
217 }
218 } {1 {unknown or unsupported join type: INNER OUTER}}
219 do_test join-3.7 {
220 catchsql {
221 SELECT * FROM t1 LEFT BOGUS JOIN t2;
222 }
223 } {1 {unknown or unsupported join type: LEFT BOGUS}}
225 do_test join-4.1 {
226 execsql {
227 BEGIN;
228 CREATE TABLE t5(a INTEGER PRIMARY KEY);
229 CREATE TABLE t6(a INTEGER);
230 INSERT INTO t6 VALUES(NULL);
231 INSERT INTO t6 VALUES(NULL);
232 INSERT INTO t6 SELECT * FROM t6;
233 INSERT INTO t6 SELECT * FROM t6;
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 COMMIT;
239 }
240 execsql {
241 SELECT * FROM t6 NATURAL JOIN t5;
242 }
243 } {}
244 do_test join-4.2 {
245 execsql {
246 SELECT * FROM t6, t5 WHERE t6.a<t5.a;
247 }
248 } {}
249 do_test join-4.3 {
250 execsql {
251 SELECT * FROM t6, t5 WHERE t6.a>t5.a;
252 }
253 } {}
254 do_test join-4.4 {
255 execsql {
256 UPDATE t6 SET a='xyz';
257 SELECT * FROM t6 NATURAL JOIN t5;
258 }
259 } {}
260 do_test join-4.6 {
261 execsql {
262 SELECT * FROM t6, t5 WHERE t6.a<t5.a;
263 }
264 } {}
265 do_test join-4.7 {
266 execsql {
267 SELECT * FROM t6, t5 WHERE t6.a>t5.a;
268 }
269 } {}
270 do_test join-4.8 {
271 execsql {
272 UPDATE t6 SET a=1;
273 SELECT * FROM t6 NATURAL JOIN t5;
274 }
275 } {}
276 do_test join-4.9 {
277 execsql {
278 SELECT * FROM t6, t5 WHERE t6.a<t5.a;
279 }
280 } {}
281 do_test join-4.10 {
282 execsql {
283 SELECT * FROM t6, t5 WHERE t6.a>t5.a;
284 }
285 } {}
287 do_test join-5.1 {
288 execsql {
289 BEGIN;
290 create table centros (id integer primary key, centro);
291 INSERT INTO centros VALUES(1,'xxx');
292 create table usuarios (id integer primary key, nombre, apellidos,
293 idcentro integer);
294 INSERT INTO usuarios VALUES(1,'a','aa',1);
295 INSERT INTO usuarios VALUES(2,'b','bb',1);
296 INSERT INTO usuarios VALUES(3,'c','cc',NULL);
297 create index idcentro on usuarios (idcentro);
298 END;
299 select usuarios.id, usuarios.nombre, centros.centro from
300 usuarios left outer join centros on usuarios.idcentro = centros.id;
301 }
302 } {1 a xxx 2 b xxx 3 c {}}
304 # A test for ticket #247.
305 #
306 do_test join-7.1 {
307 execsql {
308 CREATE TABLE t7 (x, y);
309 INSERT INTO t7 VALUES ("pa1", 1);
310 INSERT INTO t7 VALUES ("pa2", NULL);
311 INSERT INTO t7 VALUES ("pa3", NULL);
312 INSERT INTO t7 VALUES ("pa4", 2);
313 INSERT INTO t7 VALUES ("pa30", 131);
314 INSERT INTO t7 VALUES ("pa31", 130);
315 INSERT INTO t7 VALUES ("pa28", NULL);
317 CREATE TABLE t8 (a integer primary key, b);
318 INSERT INTO t8 VALUES (1, "pa1");
319 INSERT INTO t8 VALUES (2, "pa4");
320 INSERT INTO t8 VALUES (3, NULL);
321 INSERT INTO t8 VALUES (4, NULL);
322 INSERT INTO t8 VALUES (130, "pa31");
323 INSERT INTO t8 VALUES (131, "pa30");
325 SELECT coalesce(t8.a,999) from t7 LEFT JOIN t8 on y=a;
326 }
327 } {1 999 999 2 131 130 999}
329 # Make sure a left join where the right table is really a view that
330 # is itself a join works right. Ticket #306.
331 #
332 do_test join-8.1 {
333 execsql {
334 BEGIN;
335 CREATE TABLE t9(a INTEGER PRIMARY KEY, b);
336 INSERT INTO t9 VALUES(1,11);
337 INSERT INTO t9 VALUES(2,22);
338 CREATE TABLE t10(x INTEGER PRIMARY KEY, y);
339 INSERT INTO t10 VALUES(1,2);
340 INSERT INTO t10 VALUES(3,3);
341 CREATE TABLE t11(p INTEGER PRIMARY KEY, q);
342 INSERT INTO t11 VALUES(2,111);
343 INSERT INTO t11 VALUES(3,333);
344 CREATE VIEW v10_11 AS SELECT x, q FROM t10, t11 WHERE t10.y=t11.p;
345 COMMIT;
346 SELECT * FROM t9 LEFT JOIN v10_11 ON( a=x );
347 }
348 } {1 11 1 111 2 22 {} {}}
349 do_test join-8.2 {
350 execsql {
351 SELECT * FROM t9 LEFT JOIN (SELECT x, q FROM t10, t11 WHERE t10.y=t11.p)
352 ON( a=x);
353 }
354 } {1 11 1 111 2 22 {} {}}
355 do_test join-8.3 {
356 execsql {
357 SELECT * FROM v10_11 LEFT JOIN t9 ON( a=x );
358 }
359 } {1 111 1 11 3 333 {} {}}
361 # Ticket #350 describes a scenario where LEFT OUTER JOIN does not
362 # function correctly if the right table in the join is really
363 # subquery.
364 #
365 # To test the problem, we generate the same LEFT OUTER JOIN in two
366 # separate selects but with on using a subquery and the other calling
367 # the table directly. Then connect the two SELECTs using an EXCEPT.
368 # Both queries should generate the same results so the answer should
369 # be an empty set.
370 #
371 do_test join-9.1 {
372 execsql {
373 BEGIN;
374 CREATE TABLE t12(a,b);
375 INSERT INTO t12 VALUES(1,11);
376 INSERT INTO t12 VALUES(2,22);
377 CREATE TABLE t13(b,c);
378 INSERT INTO t13 VALUES(22,222);
379 COMMIT;
380 SELECT * FROM t12 NATURAL LEFT JOIN t13
381 EXCEPT
382 SELECT * FROM t12 NATURAL LEFT JOIN (SELECT * FROM t13 WHERE b>0);
383 }
384 } {}
385 do_test join-9.2 {
386 execsql {
387 CREATE VIEW v13 AS SELECT * FROM t13 WHERE b>0;
388 SELECT * FROM t12 NATURAL LEFT JOIN t13
389 EXCEPT
390 SELECT * FROM t12 NATURAL LEFT JOIN v13;
391 }
392 } {}
394 finish_test