1# 2002 May 24 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. 12# 13# This file implements tests for joins, including outer joins. 14# 15# $Id: join.test,v 1.20 2005/06/06 17:11:46 drh Exp $ 16 17set testdir [file dirname $argv0] 18source $testdir/tester.tcl 19 20do_test join-1.1 { 21 execsql { 22 CREATE TABLE t1(a,b,c); 23 INSERT INTO t1 VALUES(1,2,3); 24 INSERT INTO t1 VALUES(2,3,4); 25 INSERT INTO t1 VALUES(3,4,5); 26 SELECT * FROM t1; 27 } 28} {1 2 3 2 3 4 3 4 5} 29do_test join-1.2 { 30 execsql { 31 CREATE TABLE t2(b,c,d); 32 INSERT INTO t2 VALUES(1,2,3); 33 INSERT INTO t2 VALUES(2,3,4); 34 INSERT INTO t2 VALUES(3,4,5); 35 SELECT * FROM t2; 36 } 37} {1 2 3 2 3 4 3 4 5} 38 39do_test join-1.3 { 40 execsql2 { 41 SELECT * FROM t1 NATURAL JOIN t2; 42 } 43} {a 1 b 2 c 3 d 4 a 2 b 3 c 4 d 5} 44do_test join-1.3.1 { 45 execsql2 { 46 SELECT * FROM t2 NATURAL JOIN t1; 47 } 48} {b 2 c 3 d 4 a 1 b 3 c 4 d 5 a 2} 49do_test join-1.3.2 { 50 execsql2 { 51 SELECT * FROM t2 AS x NATURAL JOIN t1; 52 } 53} {b 2 c 3 d 4 a 1 b 3 c 4 d 5 a 2} 54do_test join-1.3.3 { 55 execsql2 { 56 SELECT * FROM t2 NATURAL JOIN t1 AS y; 57 } 58} {b 2 c 3 d 4 a 1 b 3 c 4 d 5 a 2} 59do_test join-1.3.4 { 60 execsql { 61 SELECT b FROM t1 NATURAL JOIN t2; 62 } 63} {2 3} 64do_test join-1.4.1 { 65 execsql2 { 66 SELECT * FROM t1 INNER JOIN t2 USING(b,c); 67 } 68} {a 1 b 2 c 3 d 4 a 2 b 3 c 4 d 5} 69do_test join-1.4.2 { 70 execsql2 { 71 SELECT * FROM t1 AS x INNER JOIN t2 USING(b,c); 72 } 73} {a 1 b 2 c 3 d 4 a 2 b 3 c 4 d 5} 74do_test join-1.4.3 { 75 execsql2 { 76 SELECT * FROM t1 INNER JOIN t2 AS y USING(b,c); 77 } 78} {a 1 b 2 c 3 d 4 a 2 b 3 c 4 d 5} 79do_test join-1.4.4 { 80 execsql2 { 81 SELECT * FROM t1 AS x INNER JOIN t2 AS y USING(b,c); 82 } 83} {a 1 b 2 c 3 d 4 a 2 b 3 c 4 d 5} 84do_test join-1.4.5 { 85 execsql { 86 SELECT b FROM t1 JOIN t2 USING(b); 87 } 88} {2 3} 89do_test join-1.5 { 90 execsql2 { 91 SELECT * FROM t1 INNER JOIN t2 USING(b); 92 } 93} {a 1 b 2 c 3 c 3 d 4 a 2 b 3 c 4 c 4 d 5} 94do_test join-1.6 { 95 execsql2 { 96 SELECT * FROM t1 INNER JOIN t2 USING(c); 97 } 98} {a 1 b 2 c 3 b 2 d 4 a 2 b 3 c 4 b 3 d 5} 99do_test join-1.7 { 100 execsql2 { 101 SELECT * FROM t1 INNER JOIN t2 USING(c,b); 102 } 103} {a 1 b 2 c 3 d 4 a 2 b 3 c 4 d 5} 104 105do_test join-1.8 { 106 execsql { 107 SELECT * FROM t1 NATURAL CROSS JOIN t2; 108 } 109} {1 2 3 4 2 3 4 5} 110do_test join-1.9 { 111 execsql { 112 SELECT * FROM t1 CROSS JOIN t2 USING(b,c); 113 } 114} {1 2 3 4 2 3 4 5} 115do_test join-1.10 { 116 execsql { 117 SELECT * FROM t1 NATURAL INNER JOIN t2; 118 } 119} {1 2 3 4 2 3 4 5} 120do_test join-1.11 { 121 execsql { 122 SELECT * FROM t1 INNER JOIN t2 USING(b,c); 123 } 124} {1 2 3 4 2 3 4 5} 125do_test join-1.12 { 126 execsql { 127 SELECT * FROM t1 natural inner join t2; 128 } 129} {1 2 3 4 2 3 4 5} 130 131ifcapable subquery { 132 do_test join-1.13 { 133 execsql2 { 134 SELECT * FROM t1 NATURAL JOIN 135 (SELECT b as 'c', c as 'd', d as 'e' FROM t2) as t3 136 } 137 } {a 1 b 2 c 3 d 4 e 5} 138 do_test join-1.14 { 139 execsql2 { 140 SELECT * FROM (SELECT b as 'c', c as 'd', d as 'e' FROM t2) as 'tx' 141 NATURAL JOIN t1 142 } 143 } {c 3 d 4 e 5 a 1 b 2} 144} 145 146do_test join-1.15 { 147 execsql { 148 CREATE TABLE t3(c,d,e); 149 INSERT INTO t3 VALUES(2,3,4); 150 INSERT INTO t3 VALUES(3,4,5); 151 INSERT INTO t3 VALUES(4,5,6); 152 SELECT * FROM t3; 153 } 154} {2 3 4 3 4 5 4 5 6} 155do_test join-1.16 { 156 execsql { 157 SELECT * FROM t1 natural join t2 natural join t3; 158 } 159} {1 2 3 4 5 2 3 4 5 6} 160do_test join-1.17 { 161 execsql2 { 162 SELECT * FROM t1 natural join t2 natural join t3; 163 } 164} {a 1 b 2 c 3 d 4 e 5 a 2 b 3 c 4 d 5 e 6} 165do_test join-1.18 { 166 execsql { 167 CREATE TABLE t4(d,e,f); 168 INSERT INTO t4 VALUES(2,3,4); 169 INSERT INTO t4 VALUES(3,4,5); 170 INSERT INTO t4 VALUES(4,5,6); 171 SELECT * FROM t4; 172 } 173} {2 3 4 3 4 5 4 5 6} 174do_test join-1.19.1 { 175 execsql { 176 SELECT * FROM t1 natural join t2 natural join t4; 177 } 178} {1 2 3 4 5 6} 179do_test join-1.19.2 { 180 execsql2 { 181 SELECT * FROM t1 natural join t2 natural join t4; 182 } 183} {a 1 b 2 c 3 d 4 e 5 f 6} 184do_test join-1.20 { 185 execsql { 186 SELECT * FROM t1 natural join t2 natural join t3 WHERE t1.a=1 187 } 188} {1 2 3 4 5} 189 190do_test join-2.1 { 191 execsql { 192 SELECT * FROM t1 NATURAL LEFT JOIN t2; 193 } 194} {1 2 3 4 2 3 4 5 3 4 5 {}} 195do_test join-2.2 { 196 execsql { 197 SELECT * FROM t2 NATURAL LEFT OUTER JOIN t1; 198 } 199} {1 2 3 {} 2 3 4 1 3 4 5 2} 200do_test join-2.3 { 201 catchsql { 202 SELECT * FROM t1 NATURAL RIGHT OUTER JOIN t2; 203 } 204} {1 {RIGHT and FULL OUTER JOINs are not currently supported}} 205do_test join-2.4 { 206 execsql { 207 SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.d 208 } 209} {1 2 3 {} {} {} 2 3 4 {} {} {} 3 4 5 1 2 3} 210do_test join-2.5 { 211 execsql { 212 SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.d WHERE t1.a>1 213 } 214} {2 3 4 {} {} {} 3 4 5 1 2 3} 215do_test join-2.6 { 216 execsql { 217 SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.d WHERE t2.b IS NULL OR t2.b>1 218 } 219} {1 2 3 {} {} {} 2 3 4 {} {} {}} 220 221do_test join-3.1 { 222 catchsql { 223 SELECT * FROM t1 NATURAL JOIN t2 ON t1.a=t2.b; 224 } 225} {1 {a NATURAL join may not have an ON or USING clause}} 226do_test join-3.2 { 227 catchsql { 228 SELECT * FROM t1 NATURAL JOIN t2 USING(b); 229 } 230} {1 {a NATURAL join may not have an ON or USING clause}} 231do_test join-3.3 { 232 catchsql { 233 SELECT * FROM t1 JOIN t2 ON t1.a=t2.b USING(b); 234 } 235} {1 {cannot have both ON and USING clauses in the same join}} 236do_test join-3.4 { 237 catchsql { 238 SELECT * FROM t1 JOIN t2 USING(a); 239 } 240} {1 {cannot join using column a - column not present in both tables}} 241do_test join-3.5 { 242 catchsql { 243 SELECT * FROM t1 USING(a); 244 } 245} {0 {1 2 3 2 3 4 3 4 5}} 246do_test join-3.6 { 247 catchsql { 248 SELECT * FROM t1 JOIN t2 ON t3.a=t2.b; 249 } 250} {1 {no such column: t3.a}} 251do_test join-3.7 { 252 catchsql { 253 SELECT * FROM t1 INNER OUTER JOIN t2; 254 } 255} {1 {unknown or unsupported join type: INNER OUTER}} 256do_test join-3.7 { 257 catchsql { 258 SELECT * FROM t1 LEFT BOGUS JOIN t2; 259 } 260} {1 {unknown or unsupported join type: LEFT BOGUS}} 261 262do_test join-4.1 { 263 execsql { 264 BEGIN; 265 CREATE TABLE t5(a INTEGER PRIMARY KEY); 266 CREATE TABLE t6(a INTEGER); 267 INSERT INTO t6 VALUES(NULL); 268 INSERT INTO t6 VALUES(NULL); 269 INSERT INTO t6 SELECT * FROM t6; 270 INSERT INTO t6 SELECT * FROM t6; 271 INSERT INTO t6 SELECT * FROM t6; 272 INSERT INTO t6 SELECT * FROM t6; 273 INSERT INTO t6 SELECT * FROM t6; 274 INSERT INTO t6 SELECT * FROM t6; 275 COMMIT; 276 } 277 execsql { 278 SELECT * FROM t6 NATURAL JOIN t5; 279 } 280} {} 281do_test join-4.2 { 282 execsql { 283 SELECT * FROM t6, t5 WHERE t6.a<t5.a; 284 } 285} {} 286do_test join-4.3 { 287 execsql { 288 SELECT * FROM t6, t5 WHERE t6.a>t5.a; 289 } 290} {} 291do_test join-4.4 { 292 execsql { 293 UPDATE t6 SET a='xyz'; 294 SELECT * FROM t6 NATURAL JOIN t5; 295 } 296} {} 297do_test join-4.6 { 298 execsql { 299 SELECT * FROM t6, t5 WHERE t6.a<t5.a; 300 } 301} {} 302do_test join-4.7 { 303 execsql { 304 SELECT * FROM t6, t5 WHERE t6.a>t5.a; 305 } 306} {} 307do_test join-4.8 { 308 execsql { 309 UPDATE t6 SET a=1; 310 SELECT * FROM t6 NATURAL JOIN t5; 311 } 312} {} 313do_test join-4.9 { 314 execsql { 315 SELECT * FROM t6, t5 WHERE t6.a<t5.a; 316 } 317} {} 318do_test join-4.10 { 319 execsql { 320 SELECT * FROM t6, t5 WHERE t6.a>t5.a; 321 } 322} {} 323 324do_test join-5.1 { 325 execsql { 326 BEGIN; 327 create table centros (id integer primary key, centro); 328 INSERT INTO centros VALUES(1,'xxx'); 329 create table usuarios (id integer primary key, nombre, apellidos, 330 idcentro integer); 331 INSERT INTO usuarios VALUES(1,'a','aa',1); 332 INSERT INTO usuarios VALUES(2,'b','bb',1); 333 INSERT INTO usuarios VALUES(3,'c','cc',NULL); 334 create index idcentro on usuarios (idcentro); 335 END; 336 select usuarios.id, usuarios.nombre, centros.centro from 337 usuarios left outer join centros on usuarios.idcentro = centros.id; 338 } 339} {1 a xxx 2 b xxx 3 c {}} 340 341# A test for ticket #247. 342# 343do_test join-7.1 { 344 execsql { 345 CREATE TABLE t7 (x, y); 346 INSERT INTO t7 VALUES ("pa1", 1); 347 INSERT INTO t7 VALUES ("pa2", NULL); 348 INSERT INTO t7 VALUES ("pa3", NULL); 349 INSERT INTO t7 VALUES ("pa4", 2); 350 INSERT INTO t7 VALUES ("pa30", 131); 351 INSERT INTO t7 VALUES ("pa31", 130); 352 INSERT INTO t7 VALUES ("pa28", NULL); 353 354 CREATE TABLE t8 (a integer primary key, b); 355 INSERT INTO t8 VALUES (1, "pa1"); 356 INSERT INTO t8 VALUES (2, "pa4"); 357 INSERT INTO t8 VALUES (3, NULL); 358 INSERT INTO t8 VALUES (4, NULL); 359 INSERT INTO t8 VALUES (130, "pa31"); 360 INSERT INTO t8 VALUES (131, "pa30"); 361 362 SELECT coalesce(t8.a,999) from t7 LEFT JOIN t8 on y=a; 363 } 364} {1 999 999 2 131 130 999} 365 366# Make sure a left join where the right table is really a view that 367# is itself a join works right. Ticket #306. 368# 369ifcapable view { 370do_test join-8.1 { 371 execsql { 372 BEGIN; 373 CREATE TABLE t9(a INTEGER PRIMARY KEY, b); 374 INSERT INTO t9 VALUES(1,11); 375 INSERT INTO t9 VALUES(2,22); 376 CREATE TABLE t10(x INTEGER PRIMARY KEY, y); 377 INSERT INTO t10 VALUES(1,2); 378 INSERT INTO t10 VALUES(3,3); 379 CREATE TABLE t11(p INTEGER PRIMARY KEY, q); 380 INSERT INTO t11 VALUES(2,111); 381 INSERT INTO t11 VALUES(3,333); 382 CREATE VIEW v10_11 AS SELECT x, q FROM t10, t11 WHERE t10.y=t11.p; 383 COMMIT; 384 SELECT * FROM t9 LEFT JOIN v10_11 ON( a=x ); 385 } 386} {1 11 1 111 2 22 {} {}} 387ifcapable subquery { 388 do_test join-8.2 { 389 execsql { 390 SELECT * FROM t9 LEFT JOIN (SELECT x, q FROM t10, t11 WHERE t10.y=t11.p) 391 ON( a=x); 392 } 393 } {1 11 1 111 2 22 {} {}} 394} 395do_test join-8.3 { 396 execsql { 397 SELECT * FROM v10_11 LEFT JOIN t9 ON( a=x ); 398 } 399} {1 111 1 11 3 333 {} {}} 400} ;# ifcapable view 401 402# Ticket #350 describes a scenario where LEFT OUTER JOIN does not 403# function correctly if the right table in the join is really 404# subquery. 405# 406# To test the problem, we generate the same LEFT OUTER JOIN in two 407# separate selects but with on using a subquery and the other calling 408# the table directly. Then connect the two SELECTs using an EXCEPT. 409# Both queries should generate the same results so the answer should 410# be an empty set. 411# 412ifcapable compound { 413do_test join-9.1 { 414 execsql { 415 BEGIN; 416 CREATE TABLE t12(a,b); 417 INSERT INTO t12 VALUES(1,11); 418 INSERT INTO t12 VALUES(2,22); 419 CREATE TABLE t13(b,c); 420 INSERT INTO t13 VALUES(22,222); 421 COMMIT; 422 } 423} {} 424 425ifcapable subquery { 426 do_test join-9.1.1 { 427 execsql { 428 SELECT * FROM t12 NATURAL LEFT JOIN t13 429 EXCEPT 430 SELECT * FROM t12 NATURAL LEFT JOIN (SELECT * FROM t13 WHERE b>0); 431 } 432 } {} 433} 434ifcapable view { 435 do_test join-9.2 { 436 execsql { 437 CREATE VIEW v13 AS SELECT * FROM t13 WHERE b>0; 438 SELECT * FROM t12 NATURAL LEFT JOIN t13 439 EXCEPT 440 SELECT * FROM t12 NATURAL LEFT JOIN v13; 441 } 442 } {} 443} ;# ifcapable view 444} ;# ifcapable compound 445 446finish_test 447