1# 2002-05-24 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 16set testdir [file dirname $argv0] 17source $testdir/tester.tcl 18 19do_test join-1.1 { 20 execsql { 21 CREATE TABLE t1(a,b,c); 22 INSERT INTO t1 VALUES(1,2,3); 23 INSERT INTO t1 VALUES(2,3,4); 24 INSERT INTO t1 VALUES(3,4,5); 25 SELECT * FROM t1; 26 } 27} {1 2 3 2 3 4 3 4 5} 28do_test join-1.2 { 29 execsql { 30 CREATE TABLE t2(b,c,d); 31 INSERT INTO t2 VALUES(1,2,3); 32 INSERT INTO t2 VALUES(2,3,4); 33 INSERT INTO t2 VALUES(3,4,5); 34 SELECT * FROM t2; 35 } 36} {1 2 3 2 3 4 3 4 5} 37 38# A FROM clause of the form: "<table>, <table> ON <expr>" is not 39# allowed by the SQLite syntax diagram, nor by any other SQL database 40# engine that we are aware of. Nevertheless, historic versions of 41# SQLite have allowed it. We need to continue to support it moving 42# forward to prevent breakage of legacy applications. Though, we will 43# not advertise it as being supported. 44# 45do_execsql_test join-1.2.1 { 46 SELECT t1.rowid, t2.rowid, '|' FROM t1, t2 ON t1.a=t2.b; 47} {1 1 | 2 2 | 3 3 |} 48 49do_test join-1.3 { 50 execsql2 { 51 SELECT * FROM t1 NATURAL JOIN t2; 52 } 53} {a 1 b 2 c 3 d 4 a 2 b 3 c 4 d 5} 54do_test join-1.3.1 { 55 execsql2 { 56 SELECT * FROM t2 NATURAL JOIN t1; 57 } 58} {b 2 c 3 d 4 a 1 b 3 c 4 d 5 a 2} 59do_test join-1.3.2 { 60 execsql2 { 61 SELECT * FROM t2 AS x NATURAL JOIN t1; 62 } 63} {b 2 c 3 d 4 a 1 b 3 c 4 d 5 a 2} 64do_test join-1.3.3 { 65 execsql2 { 66 SELECT * FROM t2 NATURAL JOIN t1 AS y; 67 } 68} {b 2 c 3 d 4 a 1 b 3 c 4 d 5 a 2} 69do_test join-1.3.4 { 70 execsql { 71 SELECT b FROM t1 NATURAL JOIN t2; 72 } 73} {2 3} 74 75# ticket #3522 76do_test join-1.3.5 { 77 execsql2 { 78 SELECT t2.* FROM t2 NATURAL JOIN t1 79 } 80} {b 2 c 3 d 4 b 3 c 4 d 5} 81do_test join-1.3.6 { 82 execsql2 { 83 SELECT xyzzy.* FROM t2 AS xyzzy NATURAL JOIN t1 84 } 85} {b 2 c 3 d 4 b 3 c 4 d 5} 86do_test join-1.3.7 { 87 execsql2 { 88 SELECT t1.* FROM t2 NATURAL JOIN t1 89 } 90} {a 1 b 2 c 3 a 2 b 3 c 4} 91do_test join-1.3.8 { 92 execsql2 { 93 SELECT xyzzy.* FROM t2 NATURAL JOIN t1 AS xyzzy 94 } 95} {a 1 b 2 c 3 a 2 b 3 c 4} 96do_test join-1.3.9 { 97 execsql2 { 98 SELECT aaa.*, bbb.* FROM t2 AS aaa NATURAL JOIN t1 AS bbb 99 } 100} {b 2 c 3 d 4 a 1 b 2 c 3 b 3 c 4 d 5 a 2 b 3 c 4} 101do_test join-1.3.10 { 102 execsql2 { 103 SELECT t1.*, t2.* FROM t2 NATURAL JOIN t1 104 } 105} {a 1 b 2 c 3 b 2 c 3 d 4 a 2 b 3 c 4 b 3 c 4 d 5} 106 107 108do_test join-1.4.1 { 109 execsql2 { 110 SELECT * FROM t1 INNER JOIN t2 USING(b,c); 111 } 112} {a 1 b 2 c 3 d 4 a 2 b 3 c 4 d 5} 113do_test join-1.4.2 { 114 execsql2 { 115 SELECT * FROM t1 AS x INNER JOIN t2 USING(b,c); 116 } 117} {a 1 b 2 c 3 d 4 a 2 b 3 c 4 d 5} 118do_test join-1.4.3 { 119 execsql2 { 120 SELECT * FROM t1 INNER JOIN t2 AS y USING(b,c); 121 } 122} {a 1 b 2 c 3 d 4 a 2 b 3 c 4 d 5} 123do_test join-1.4.4 { 124 execsql2 { 125 SELECT * FROM t1 AS x INNER JOIN t2 AS y USING(b,c); 126 } 127} {a 1 b 2 c 3 d 4 a 2 b 3 c 4 d 5} 128do_test join-1.4.5 { 129 execsql { 130 SELECT b FROM t1 JOIN t2 USING(b); 131 } 132} {2 3} 133 134# Ticket #3522 135do_test join-1.4.6 { 136 execsql2 { 137 SELECT t1.* FROM t1 JOIN t2 USING(b); 138 } 139} {a 1 b 2 c 3 a 2 b 3 c 4} 140do_test join-1.4.7 { 141 execsql2 { 142 SELECT t2.* FROM t1 JOIN t2 USING(b); 143 } 144} {b 2 c 3 d 4 b 3 c 4 d 5} 145 146do_test join-1.5 { 147 execsql2 { 148 SELECT * FROM t1 INNER JOIN t2 USING(b); 149 } 150} {a 1 b 2 c 3 c 3 d 4 a 2 b 3 c 4 c 4 d 5} 151do_test join-1.6 { 152 execsql2 { 153 SELECT * FROM t1 INNER JOIN t2 USING(c); 154 } 155} {a 1 b 2 c 3 b 2 d 4 a 2 b 3 c 4 b 3 d 5} 156do_test join-1.7 { 157 execsql2 { 158 SELECT * FROM t1 INNER JOIN t2 USING(c,b); 159 } 160} {a 1 b 2 c 3 d 4 a 2 b 3 c 4 d 5} 161 162do_test join-1.8 { 163 execsql { 164 SELECT * FROM t1 NATURAL CROSS JOIN t2; 165 } 166} {1 2 3 4 2 3 4 5} 167do_test join-1.9 { 168 execsql { 169 SELECT * FROM t1 CROSS JOIN t2 USING(b,c); 170 } 171} {1 2 3 4 2 3 4 5} 172do_test join-1.10 { 173 execsql { 174 SELECT * FROM t1 NATURAL INNER JOIN t2; 175 } 176} {1 2 3 4 2 3 4 5} 177do_test join-1.11 { 178 execsql { 179 SELECT * FROM t1 INNER JOIN t2 USING(b,c); 180 } 181} {1 2 3 4 2 3 4 5} 182do_test join-1.12 { 183 execsql { 184 SELECT * FROM t1 natural inner join t2; 185 } 186} {1 2 3 4 2 3 4 5} 187 188ifcapable subquery { 189 do_test join-1.13 { 190 execsql2 { 191 SELECT * FROM t1 NATURAL JOIN 192 (SELECT b as 'c', c as 'd', d as 'e' FROM t2) as t3 193 } 194 } {a 1 b 2 c 3 d 4 e 5} 195 do_test join-1.14 { 196 execsql2 { 197 SELECT * FROM (SELECT b as 'c', c as 'd', d as 'e' FROM t2) as 'tx' 198 NATURAL JOIN t1 199 } 200 } {c 3 d 4 e 5 a 1 b 2} 201} 202 203do_test join-1.15 { 204 execsql { 205 CREATE TABLE t3(c,d,e); 206 INSERT INTO t3 VALUES(2,3,4); 207 INSERT INTO t3 VALUES(3,4,5); 208 INSERT INTO t3 VALUES(4,5,6); 209 SELECT * FROM t3; 210 } 211} {2 3 4 3 4 5 4 5 6} 212do_test join-1.16 { 213 execsql { 214 SELECT * FROM t1 natural join t2 natural join t3; 215 } 216} {1 2 3 4 5 2 3 4 5 6} 217do_test join-1.17 { 218 execsql2 { 219 SELECT * FROM t1 natural join t2 natural join t3; 220 } 221} {a 1 b 2 c 3 d 4 e 5 a 2 b 3 c 4 d 5 e 6} 222do_test join-1.18 { 223 execsql { 224 CREATE TABLE t4(d,e,f); 225 INSERT INTO t4 VALUES(2,3,4); 226 INSERT INTO t4 VALUES(3,4,5); 227 INSERT INTO t4 VALUES(4,5,6); 228 SELECT * FROM t4; 229 } 230} {2 3 4 3 4 5 4 5 6} 231do_test join-1.19.1 { 232 execsql { 233 SELECT * FROM t1 natural join t2 natural join t4; 234 } 235} {1 2 3 4 5 6} 236do_test join-1.19.2 { 237 execsql2 { 238 SELECT * FROM t1 natural join t2 natural join t4; 239 } 240} {a 1 b 2 c 3 d 4 e 5 f 6} 241do_test join-1.20 { 242 execsql { 243 SELECT * FROM t1 natural join t2 natural join t3 WHERE t1.a=1 244 } 245} {1 2 3 4 5} 246 247do_test join-2.1 { 248 execsql { 249 SELECT * FROM t1 NATURAL LEFT JOIN t2; 250 } 251} {1 2 3 4 2 3 4 5 3 4 5 {}} 252 253# ticket #3522 254do_test join-2.1.1 { 255 execsql2 { 256 SELECT * FROM t1 NATURAL LEFT JOIN t2; 257 } 258} {a 1 b 2 c 3 d 4 a 2 b 3 c 4 d 5 a 3 b 4 c 5 d {}} 259do_test join-2.1.2 { 260 execsql2 { 261 SELECT t1.* FROM t1 NATURAL LEFT JOIN t2; 262 } 263} {a 1 b 2 c 3 a 2 b 3 c 4 a 3 b 4 c 5} 264do_test join-2.1.3 { 265 execsql2 { 266 SELECT t2.* FROM t1 NATURAL LEFT JOIN t2; 267 } 268} {b 2 c 3 d 4 b 3 c 4 d 5 b {} c {} d {}} 269 270do_test join-2.2 { 271 execsql { 272 SELECT * FROM t2 NATURAL LEFT OUTER JOIN t1; 273 } 274} {1 2 3 {} 2 3 4 1 3 4 5 2} 275 276#do_test join-2.3 { 277# catchsql { 278# SELECT * FROM t1 NATURAL RIGHT OUTER JOIN t2; 279# } 280#} {1 {RIGHT and FULL OUTER JOINs are not currently supported}} 281 282do_test join-2.4 { 283 execsql { 284 SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.d 285 } 286} {1 2 3 {} {} {} 2 3 4 {} {} {} 3 4 5 1 2 3} 287do_test join-2.5 { 288 execsql { 289 SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.d WHERE t1.a>1 290 } 291} {2 3 4 {} {} {} 3 4 5 1 2 3} 292do_test join-2.6 { 293 execsql { 294 SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.d WHERE t2.b IS NULL OR t2.b>1 295 } 296} {1 2 3 {} {} {} 2 3 4 {} {} {}} 297 298do_test join-3.1 { 299 catchsql { 300 SELECT * FROM t1 NATURAL JOIN t2 ON t1.a=t2.b; 301 } 302} {1 {a NATURAL join may not have an ON or USING clause}} 303do_test join-3.2 { 304 catchsql { 305 SELECT * FROM t1 NATURAL JOIN t2 USING(b); 306 } 307} {1 {a NATURAL join may not have an ON or USING clause}} 308do_test join-3.3 { 309 catchsql { 310 SELECT * FROM t1 JOIN t2 ON t1.a=t2.b USING(b); 311 } 312} {1 {near "USING": syntax error}} 313do_test join-3.4.1 { 314 catchsql { 315 SELECT * FROM t1 JOIN t2 USING(a); 316 } 317} {1 {cannot join using column a - column not present in both tables}} 318do_test join-3.4.2 { 319 catchsql { 320 SELECT * FROM t1 JOIN t2 USING(d); 321 } 322} {1 {cannot join using column d - column not present in both tables}} 323do_test join-3.5 { 324 catchsql { SELECT * FROM t1 USING(a) } 325} {1 {a JOIN clause is required before USING}} 326do_test join-3.6 { 327 catchsql { 328 SELECT * FROM t1 JOIN t2 ON t3.a=t2.b; 329 } 330} {1 {no such column: t3.a}} 331do_test join-3.7 { 332 catchsql { 333 SELECT * FROM t1 INNER OUTER JOIN t2; 334 } 335} {1 {unknown join type: INNER OUTER}} 336do_test join-3.8 { 337 catchsql { 338 SELECT * FROM t1 INNER OUTER CROSS JOIN t2; 339 } 340} {1 {unknown join type: INNER OUTER CROSS}} 341do_test join-3.9 { 342 catchsql { 343 SELECT * FROM t1 OUTER NATURAL INNER JOIN t2; 344 } 345} {1 {unknown join type: OUTER NATURAL INNER}} 346do_test join-3.10 { 347 catchsql { 348 SELECT * FROM t1 LEFT BOGUS JOIN t2; 349 } 350} {1 {unknown join type: LEFT BOGUS}} 351do_test join-3.11 { 352 catchsql { 353 SELECT * FROM t1 INNER BOGUS CROSS JOIN t2; 354 } 355} {1 {unknown join type: INNER BOGUS CROSS}} 356do_test join-3.12 { 357 catchsql { 358 SELECT * FROM t1 NATURAL AWK SED JOIN t2; 359 } 360} {1 {unknown join type: NATURAL AWK SED}} 361 362do_test join-4.1 { 363 execsql { 364 BEGIN; 365 CREATE TABLE t5(a INTEGER PRIMARY KEY); 366 CREATE TABLE t6(a INTEGER); 367 INSERT INTO t6 VALUES(NULL); 368 INSERT INTO t6 VALUES(NULL); 369 INSERT INTO t6 SELECT * FROM t6; 370 INSERT INTO t6 SELECT * FROM t6; 371 INSERT INTO t6 SELECT * FROM t6; 372 INSERT INTO t6 SELECT * FROM t6; 373 INSERT INTO t6 SELECT * FROM t6; 374 INSERT INTO t6 SELECT * FROM t6; 375 COMMIT; 376 } 377 execsql { 378 SELECT * FROM t6 NATURAL JOIN t5; 379 } 380} {} 381do_test join-4.2 { 382 execsql { 383 SELECT * FROM t6, t5 WHERE t6.a<t5.a; 384 } 385} {} 386do_test join-4.3 { 387 execsql { 388 SELECT * FROM t6, t5 WHERE t6.a>t5.a; 389 } 390} {} 391do_test join-4.4 { 392 execsql { 393 UPDATE t6 SET a='xyz'; 394 SELECT * FROM t6 NATURAL JOIN t5; 395 } 396} {} 397do_test join-4.6 { 398 execsql { 399 SELECT * FROM t6, t5 WHERE t6.a<t5.a; 400 } 401} {} 402do_test join-4.7 { 403 execsql { 404 SELECT * FROM t6, t5 WHERE t6.a>t5.a; 405 } 406} {} 407do_test join-4.8 { 408 execsql { 409 UPDATE t6 SET a=1; 410 SELECT * FROM t6 NATURAL JOIN t5; 411 } 412} {} 413do_test join-4.9 { 414 execsql { 415 SELECT * FROM t6, t5 WHERE t6.a<t5.a; 416 } 417} {} 418do_test join-4.10 { 419 execsql { 420 SELECT * FROM t6, t5 WHERE t6.a>t5.a; 421 } 422} {} 423 424do_test join-5.1 { 425 execsql { 426 BEGIN; 427 create table centros (id integer primary key, centro); 428 INSERT INTO centros VALUES(1,'xxx'); 429 create table usuarios (id integer primary key, nombre, apellidos, 430 idcentro integer); 431 INSERT INTO usuarios VALUES(1,'a','aa',1); 432 INSERT INTO usuarios VALUES(2,'b','bb',1); 433 INSERT INTO usuarios VALUES(3,'c','cc',NULL); 434 create index idcentro on usuarios (idcentro); 435 END; 436 select usuarios.id, usuarios.nombre, centros.centro from 437 usuarios left outer join centros on usuarios.idcentro = centros.id; 438 } 439} {1 a xxx 2 b xxx 3 c {}} 440 441# A test for ticket #247. 442# 443do_test join-7.1 { 444 sqlite3_db_config db SQLITE_DBCONFIG_DQS_DML 1 445 execsql { 446 CREATE TABLE t7 (x, y); 447 INSERT INTO t7 VALUES ("pa1", 1); 448 INSERT INTO t7 VALUES ("pa2", NULL); 449 INSERT INTO t7 VALUES ("pa3", NULL); 450 INSERT INTO t7 VALUES ("pa4", 2); 451 INSERT INTO t7 VALUES ("pa30", 131); 452 INSERT INTO t7 VALUES ("pa31", 130); 453 INSERT INTO t7 VALUES ("pa28", NULL); 454 455 CREATE TABLE t8 (a integer primary key, b); 456 INSERT INTO t8 VALUES (1, "pa1"); 457 INSERT INTO t8 VALUES (2, "pa4"); 458 INSERT INTO t8 VALUES (3, NULL); 459 INSERT INTO t8 VALUES (4, NULL); 460 INSERT INTO t8 VALUES (130, "pa31"); 461 INSERT INTO t8 VALUES (131, "pa30"); 462 463 SELECT coalesce(t8.a,999) from t7 LEFT JOIN t8 on y=a; 464 } 465} {1 999 999 2 131 130 999} 466 467# Make sure a left join where the right table is really a view that 468# is itself a join works right. Ticket #306. 469# 470ifcapable view { 471do_test join-8.1 { 472 execsql { 473 BEGIN; 474 CREATE TABLE t9(a INTEGER PRIMARY KEY, b); 475 INSERT INTO t9 VALUES(1,11); 476 INSERT INTO t9 VALUES(2,22); 477 CREATE TABLE t10(x INTEGER PRIMARY KEY, y); 478 INSERT INTO t10 VALUES(1,2); 479 INSERT INTO t10 VALUES(3,3); 480 CREATE TABLE t11(p INTEGER PRIMARY KEY, q); 481 INSERT INTO t11 VALUES(2,111); 482 INSERT INTO t11 VALUES(3,333); 483 CREATE VIEW v10_11 AS SELECT x, q FROM t10, t11 WHERE t10.y=t11.p; 484 COMMIT; 485 SELECT * FROM t9 LEFT JOIN v10_11 ON( a=x ); 486 } 487} {1 11 1 111 2 22 {} {}} 488ifcapable subquery { 489 do_test join-8.2 { 490 execsql { 491 SELECT * FROM t9 LEFT JOIN (SELECT x, q FROM t10, t11 WHERE t10.y=t11.p) 492 ON( a=x); 493 } 494 } {1 11 1 111 2 22 {} {}} 495} 496do_test join-8.3 { 497 execsql { 498 SELECT * FROM v10_11 LEFT JOIN t9 ON( a=x ); 499 } 500} {1 111 1 11 3 333 {} {}} 501ifcapable subquery { 502 # Constant expressions in a subquery that is the right element of a 503 # LEFT JOIN evaluate to NULL for rows where the LEFT JOIN does not 504 # match. Ticket #3300 505 do_test join-8.4 { 506 execsql { 507 SELECT * FROM t9 LEFT JOIN (SELECT 44, p, q FROM t11) AS sub1 ON p=a 508 } 509 } {1 11 {} {} {} 2 22 44 2 111} 510} 511} ;# ifcapable view 512 513# Ticket #350 describes a scenario where LEFT OUTER JOIN does not 514# function correctly if the right table in the join is really 515# subquery. 516# 517# To test the problem, we generate the same LEFT OUTER JOIN in two 518# separate selects but with on using a subquery and the other calling 519# the table directly. Then connect the two SELECTs using an EXCEPT. 520# Both queries should generate the same results so the answer should 521# be an empty set. 522# 523ifcapable compound { 524do_test join-9.1 { 525 execsql { 526 BEGIN; 527 CREATE TABLE t12(a,b); 528 INSERT INTO t12 VALUES(1,11); 529 INSERT INTO t12 VALUES(2,22); 530 CREATE TABLE t13(b,c); 531 INSERT INTO t13 VALUES(22,222); 532 COMMIT; 533 } 534} {} 535 536ifcapable subquery { 537 do_test join-9.1.1 { 538 execsql { 539 SELECT * FROM t12 NATURAL LEFT JOIN t13 540 EXCEPT 541 SELECT * FROM t12 NATURAL LEFT JOIN (SELECT * FROM t13 WHERE b>0); 542 } 543 } {} 544} 545ifcapable view { 546 do_test join-9.2 { 547 execsql { 548 CREATE VIEW v13 AS SELECT * FROM t13 WHERE b>0; 549 SELECT * FROM t12 NATURAL LEFT JOIN t13 550 EXCEPT 551 SELECT * FROM t12 NATURAL LEFT JOIN v13; 552 } 553 } {} 554} ;# ifcapable view 555} ;# ifcapable compound 556 557ifcapable subquery { 558 # Ticket #1697: Left Join WHERE clause terms that contain an 559 # aggregate subquery. 560 # 561 do_test join-10.1 { 562 execsql { 563 CREATE TABLE t21(a,b,c); 564 CREATE TABLE t22(p,q); 565 CREATE INDEX i22 ON t22(q); 566 SELECT a FROM t21 LEFT JOIN t22 ON b=p WHERE q= 567 (SELECT max(m.q) FROM t22 m JOIN t21 n ON n.b=m.p WHERE n.c=1); 568 } 569 } {} 570 571 # Test a LEFT JOIN when the right-hand side of hte join is an empty 572 # sub-query. Seems fine. 573 # 574 do_test join-10.2 { 575 execsql { 576 CREATE TABLE t23(a, b, c); 577 CREATE TABLE t24(a, b, c); 578 INSERT INTO t23 VALUES(1, 2, 3); 579 } 580 execsql { 581 SELECT * FROM t23 LEFT JOIN t24; 582 } 583 } {1 2 3 {} {} {}} 584 do_test join-10.3 { 585 execsql { 586 SELECT * FROM t23 LEFT JOIN (SELECT * FROM t24); 587 } 588 } {1 2 3 {} {} {}} 589 590} ;# ifcapable subquery 591 592#------------------------------------------------------------------------- 593# The following tests are to ensure that bug b73fb0bd64 is fixed. 594# 595do_test join-11.1 { 596 drop_all_tables 597 execsql { 598 CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT); 599 CREATE TABLE t2(a INTEGER PRIMARY KEY, b TEXT); 600 INSERT INTO t1 VALUES(1,'abc'); 601 INSERT INTO t1 VALUES(2,'def'); 602 INSERT INTO t2 VALUES(1,'abc'); 603 INSERT INTO t2 VALUES(2,'def'); 604 SELECT * FROM t1 NATURAL JOIN t2; 605 } 606} {1 abc 2 def} 607 608do_test join-11.2 { 609 execsql { SELECT a FROM t1 JOIN t1 USING (a)} 610} {1 2} 611do_test join-11.3 { 612 execsql { SELECT a FROM t1 JOIN t1 AS t2 USING (a)} 613} {1 2} 614do_test join-11.3 { 615 execsql { SELECT * FROM t1 NATURAL JOIN t1 AS t2} 616} {1 abc 2 def} 617do_test join-11.4 { 618 execsql { SELECT * FROM t1 NATURAL JOIN t1 } 619} {1 abc 2 def} 620 621do_test join-11.5 { 622 drop_all_tables 623 execsql { 624 CREATE TABLE t1(a COLLATE nocase, b); 625 CREATE TABLE t2(a, b); 626 INSERT INTO t1 VALUES('ONE', 1); 627 INSERT INTO t1 VALUES('two', 2); 628 INSERT INTO t2 VALUES('one', 1); 629 INSERT INTO t2 VALUES('two', 2); 630 } 631} {} 632do_test join-11.6 { 633 execsql { SELECT * FROM t1 NATURAL JOIN t2 } 634} {ONE 1 two 2} 635do_test join-11.7 { 636 execsql { SELECT * FROM t2 NATURAL JOIN t1 } 637} {two 2} 638 639do_test join-11.8 { 640 drop_all_tables 641 execsql { 642 CREATE TABLE t1(a, b TEXT); 643 CREATE TABLE t2(b INTEGER, a); 644 INSERT INTO t1 VALUES('one', '1.0'); 645 INSERT INTO t1 VALUES('two', '2'); 646 INSERT INTO t2 VALUES(1, 'one'); 647 INSERT INTO t2 VALUES(2, 'two'); 648 } 649} {} 650do_test join-11.9 { 651 execsql { SELECT * FROM t1 NATURAL JOIN t2 } 652} {one 1.0 two 2} 653do_test join-11.10 { 654 execsql { SELECT * FROM t2 NATURAL JOIN t1 } 655} {1 one 2 two} 656 657#------------------------------------------------------------------------- 658# Test that at most 64 tables are allowed in a join. 659# 660do_execsql_test join-12.1 { 661 CREATE TABLE t14(x); 662 INSERT INTO t14 VALUES('abcdefghij'); 663} 664 665proc jointest {tn nTbl res} { 666 set sql "SELECT 1 FROM [string repeat t14, [expr $nTbl-1]] t14;" 667 uplevel [list do_catchsql_test $tn $sql $res] 668} 669 670jointest join-12.2 30 {0 1} 671jointest join-12.3 63 {0 1} 672jointest join-12.4 64 {0 1} 673jointest join-12.5 65 {1 {at most 64 tables in a join}} 674jointest join-12.6 66 {1 {at most 64 tables in a join}} 675jointest join-12.7 127 {1 {at most 64 tables in a join}} 676jointest join-12.8 128 {1 {at most 64 tables in a join}} 677 678# As of 2019-01-17, the number of elements in a SrcList is limited 679# to 200. The following tests still run, but the answer is now 680# an SQLITE_NOMEM error. 681# 682# jointest join-12.9 1000 {1 {at most 64 tables in a join}} 683# 684# If SQLite is built with SQLITE_MEMDEBUG, then the huge number of realloc() 685# calls made by the following test cases are too time consuming to run. 686# Without SQLITE_MEMDEBUG, realloc() is fast enough that these are not 687# a problem. 688# 689# ifcapable pragma&&compileoption_diags { 690# if {[lsearch [db eval {PRAGMA compile_options}] MEMDEBUG]<0} { 691# jointest join-12.10 65534 {1 {at most 64 tables in a join}} 692# jointest join-12.11 65535 {1 {too many references to "t14": max 65535}} 693# jointest join-12.12 65536 {1 {too many references to "t14": max 65535}} 694# jointest join-12.13 65537 {1 {too many references to "t14": max 65535}} 695# } 696# } 697 698 699#------------------------------------------------------------------------- 700# Test a problem with reordering tables following a LEFT JOIN. 701# 702do_execsql_test join-13.0 { 703 CREATE TABLE aa(a); 704 CREATE TABLE bb(b); 705 CREATE TABLE cc(c); 706 707 INSERT INTO aa VALUES(45); 708 INSERT INTO cc VALUES(45); 709 INSERT INTO cc VALUES(45); 710} 711 712do_execsql_test join-13.1 { 713 SELECT * FROM aa LEFT JOIN bb, cc WHERE cc.c=aa.a; 714} {45 {} 45 45 {} 45} 715 716# In the following, the order of [cc] and [bb] must not be exchanged, even 717# though this would be helpful if the query used an inner join. 718do_execsql_test join-13.2 { 719 CREATE INDEX ccc ON cc(c); 720 SELECT * FROM aa LEFT JOIN bb, cc WHERE cc.c=aa.a; 721} {45 {} 45 45 {} 45} 722 723# Verify that that iTable attributes the TK_IF_NULL_ROW operators in the 724# expression tree are correctly updated by the query flattener. This was 725# a bug discovered on 2017-05-22 by Mark Brand. 726# 727do_execsql_test join-14.1 { 728 SELECT * 729 FROM (SELECT 1 a) AS x 730 LEFT JOIN (SELECT 1, * FROM (SELECT * FROM (SELECT 1))); 731} {1 1 1} 732do_execsql_test join-14.2 { 733 SELECT * 734 FROM (SELECT 1 a) AS x 735 LEFT JOIN (SELECT 1, * FROM (SELECT * FROM (SELECT * FROM (SELECT 1)))) AS y 736 JOIN (SELECT * FROM (SELECT 9)) AS z; 737} {1 1 1 9} 738do_execsql_test join-14.3 { 739 SELECT * 740 FROM (SELECT 111) 741 LEFT JOIN (SELECT cc+222, * FROM (SELECT * FROM (SELECT 333 cc))); 742} {111 555 333} 743 744do_execsql_test join-14.4 { 745 DROP TABLE IF EXISTS t1; 746 CREATE TABLE t1(c PRIMARY KEY, a TEXT(10000), b TEXT(10000)); 747 SELECT * FROM (SELECT 111) LEFT JOIN (SELECT c+222 FROM t1) GROUP BY 1; 748} {111 {}} 749do_execsql_test join-14.5 { 750 DROP TABLE IF EXISTS t1; 751 CREATE TABLE t1(c PRIMARY KEY) WITHOUT ROWID; 752 SELECT * FROM (SELECT 111) LEFT JOIN (SELECT c+222 FROM t1) GROUP BY 1; 753} {111 {}} 754 755# Verify the fix to ticket 756# https://www.sqlite.org/src/tktview/7fde638e94287d2c948cd9389 757# 758db close 759sqlite3 db :memory: 760do_execsql_test join-14.10 { 761 CREATE TABLE t1(a); 762 INSERT INTO t1 VALUES(1),(2),(3); 763 CREATE VIEW v2 AS SELECT a, 1 AS b FROM t1; 764 CREATE TABLE t3(x); 765 INSERT INTO t3 VALUES(2),(4); 766 SELECT *, '|' FROM t3 LEFT JOIN v2 ON a=x WHERE b=1; 767} {2 2 1 |} 768do_execsql_test join-14.11 { 769 SELECT *, '|' FROM t3 LEFT JOIN v2 ON a=x WHERE b+1=x; 770} {2 2 1 |} 771do_execsql_test join-14.12 { 772 SELECT *, '|' FROM t3 LEFT JOIN v2 ON a=x ORDER BY b; 773} {4 {} {} | 2 2 1 |} 774 775# Verify the fix for ticket 776# https://www.sqlite.org/src/info/892fc34f173e99d8 777# 778db close 779sqlite3 db :memory: 780do_execsql_test join-14.20 { 781 CREATE TABLE t1(id INTEGER PRIMARY KEY); 782 CREATE TABLE t2(id INTEGER PRIMARY KEY, c2 INTEGER); 783 CREATE TABLE t3(id INTEGER PRIMARY KEY, c3 INTEGER); 784 INSERT INTO t1(id) VALUES(456); 785 INSERT INTO t3(id) VALUES(1),(2); 786 SELECT t1.id, x2.id, x3.id 787 FROM t1 788 LEFT JOIN (SELECT * FROM t2) AS x2 ON t1.id=x2.c2 789 LEFT JOIN t3 AS x3 ON x2.id=x3.c3; 790} {456 {} {}} 791 792# 2018-03-24. 793# E.Pasma discovered that the LEFT JOIN strength reduction optimization 794# was misbehaving. The problem turned out to be that the 795# sqlite3ExprImpliesNotNull() routine was saying that CASE expressions 796# like 797# 798# CASE WHEN true THEN true ELSE x=0 END 799# 800# could never be true if x is NULL. The following test cases verify 801# that this error has been resolved. 802# 803db close 804sqlite3 db :memory: 805do_execsql_test join-15.100 { 806 CREATE TABLE t1(a INT, b INT); 807 INSERT INTO t1 VALUES(1,2),(3,4); 808 CREATE TABLE t2(x INT, y INT); 809 SELECT *, 'x' 810 FROM t1 LEFT JOIN t2 811 WHERE CASE WHEN FALSE THEN a=x ELSE 1 END; 812} {1 2 {} {} x 3 4 {} {} x} 813do_execsql_test join-15.105 { 814 SELECT *, 'x' 815 FROM t1 LEFT JOIN t2 816 WHERE a IN (1,3,x,y); 817} {1 2 {} {} x 3 4 {} {} x} 818do_execsql_test join-15.106a { 819 SELECT *, 'x' 820 FROM t1 LEFT JOIN t2 821 WHERE NOT ( 'x'='y' AND t2.y=1 ); 822} {1 2 {} {} x 3 4 {} {} x} 823do_execsql_test join-15.106b { 824 SELECT *, 'x' 825 FROM t1 LEFT JOIN t2 826 WHERE ~ ( 'x'='y' AND t2.y=1 ); 827} {1 2 {} {} x 3 4 {} {} x} 828do_execsql_test join-15.107 { 829 SELECT *, 'x' 830 FROM t1 LEFT JOIN t2 831 WHERE t2.y IS NOT 'abc' 832} {1 2 {} {} x 3 4 {} {} x} 833do_execsql_test join-15.110 { 834 DROP TABLE t1; 835 DROP TABLE t2; 836 CREATE TABLE t1(a INTEGER PRIMARY KEY, b INTEGER); 837 INSERT INTO t1(a,b) VALUES(1,0),(11,1),(12,1),(13,1),(121,12); 838 CREATE INDEX t1b ON t1(b); 839 CREATE TABLE t2(x INTEGER PRIMARY KEY); 840 INSERT INTO t2(x) VALUES(0),(1); 841 SELECT a1, a2, a3, a4, a5 842 FROM (SELECT a AS a1 FROM t1 WHERE b=0) 843 JOIN (SELECT x AS x1 FROM t2) 844 LEFT JOIN (SELECT a AS a2, b AS b2 FROM t1) 845 ON x1 IS TRUE AND b2=a1 846 JOIN (SELECT x AS x2 FROM t2) 847 ON x2<=CASE WHEN x1 THEN CASE WHEN a2 THEN 1 ELSE -1 END ELSE 0 END 848 LEFT JOIN (SELECT a AS a3, b AS b3 FROM t1) 849 ON x2 IS TRUE AND b3=a2 850 JOIN (SELECT x AS x3 FROM t2) 851 ON x3<=CASE WHEN x2 THEN CASE WHEN a3 THEN 1 ELSE -1 END ELSE 0 END 852 LEFT JOIN (SELECT a AS a4, b AS b4 FROM t1) 853 ON x3 IS TRUE AND b4=a3 854 JOIN (SELECT x AS x4 FROM t2) 855 ON x4<=CASE WHEN x3 THEN CASE WHEN a4 THEN 1 ELSE -1 END ELSE 0 END 856 LEFT JOIN (SELECT a AS a5, b AS b5 FROM t1) 857 ON x4 IS TRUE AND b5=a4 858 ORDER BY a1, a2, a3, a4, a5; 859} {1 {} {} {} {} 1 11 {} {} {} 1 12 {} {} {} 1 12 121 {} {} 1 13 {} {} {}} 860 861# 2019-02-05 Ticket https://www.sqlite.org/src/tktview/5948e09b8c415bc45da5c 862# Error in join due to the LEFT JOIN strength reduction optimization. 863# 864do_execsql_test join-16.100 { 865 DROP TABLE IF EXISTS t1; 866 DROP TABLE IF EXISTS t2; 867 CREATE TABLE t1(a INT); 868 INSERT INTO t1(a) VALUES(1); 869 CREATE TABLE t2(b INT); 870 SELECT a, b 871 FROM t1 LEFT JOIN t2 ON 0 872 WHERE (b IS NOT NULL)=0; 873} {1 {}} 874 875# 2019-08-17 ticket https://sqlite.org/src/tktview/6710d2f7a13a299728ab 876# Ensure that constants that derive from the right-hand table of a LEFT JOIN 877# are never factored out, since they are not really constant. 878# 879do_execsql_test join-17.100 { 880 DROP TABLE IF EXISTS t1; 881 CREATE TABLE t1(x); 882 INSERT INTO t1(x) VALUES(0),(1); 883 SELECT * FROM t1 LEFT JOIN (SELECT abs(1) AS y FROM t1) ON x WHERE NOT(y='a'); 884} {1 1 1 1} 885do_execsql_test join-17.110 { 886 SELECT * FROM t1 LEFT JOIN (SELECT abs(1)+2 AS y FROM t1) ON x 887 WHERE NOT(y='a'); 888} {1 3 1 3} 889 890#------------------------------------------------------------------------- 891reset_db 892do_execsql_test join-18.1 { 893 CREATE TABLE t0(a); 894 CREATE TABLE t1(b); 895 CREATE VIEW v0 AS SELECT a FROM t1 LEFT JOIN t0; 896 INSERT INTO t1 VALUES (1); 897} {} 898 899do_execsql_test join-18.2 { 900 SELECT * FROM v0 WHERE NOT(v0.a IS FALSE); 901} {{}} 902 903do_execsql_test join-18.3 { 904 SELECT * FROM t1 LEFT JOIN t0 WHERE NOT(a IS FALSE); 905} {1 {}} 906 907do_execsql_test join-18.4 { 908 SELECT NOT(v0.a IS FALSE) FROM v0 909} {1} 910 911#------------------------------------------------------------------------- 912reset_db 913do_execsql_test join-19.0 { 914 CREATE TABLE t1(a); 915 CREATE TABLE t2(b); 916 INSERT INTO t1(a) VALUES(0); 917 CREATE VIEW v0(c) AS SELECT t2.b FROM t1 LEFT JOIN t2; 918} 919 920do_execsql_test join-19.1 { 921 SELECT * FROM v0 WHERE v0.c NOTNULL NOTNULL; 922} {{}} 923 924do_execsql_test join-19.2 { 925 SELECT * FROM t1 LEFT JOIN t2 926} {0 {}} 927 928do_execsql_test join-19.3 { 929 SELECT * FROM t1 LEFT JOIN t2 WHERE (b IS NOT NULL) IS NOT NULL; 930} {0 {}} 931 932do_execsql_test join-19.4 { 933 SELECT (b IS NOT NULL) IS NOT NULL FROM t1 LEFT JOIN t2 934} {1} 935 936do_execsql_test join-19.5 { 937 SELECT * FROM t1 LEFT JOIN t2 WHERE 938 (b IS NOT NULL AND b IS NOT NULL) IS NOT NULL; 939} {0 {}} 940 941# 2019-11-02 ticket 623eff57e76d45f6 942# The optimization of exclusing the WHERE expression of a partial index 943# from the WHERE clause of the query if the index is used does not work 944# of the table of the index is the right-hand table of a LEFT JOIN. 945# 946db close 947sqlite3 db :memory: 948do_execsql_test join-20.1 { 949 CREATE TABLE t1(c1); 950 CREATE TABLE t0(c0); 951 INSERT INTO t0(c0) VALUES (0); 952 SELECT * FROM t0 LEFT JOIN t1 WHERE NULL IN (c1); 953} {} 954do_execsql_test join-20.2 { 955 CREATE INDEX t1x ON t1(0) WHERE NULL IN (c1); 956 SELECT * FROM t0 LEFT JOIN t1 WHERE NULL IN (c1); 957} {} 958 959# 2019-11-30 ticket 7f39060a24b47353 960# Do not allow a WHERE clause term to qualify a partial index on the 961# right table of a LEFT JOIN. 962# 963do_execsql_test join-21.10 { 964 DROP TABLE t0; 965 DROP TABLE t1; 966 CREATE TABLE t0(aa); 967 CREATE TABLE t1(bb); 968 INSERT INTO t0(aa) VALUES (1); 969 INSERT INTO t1(bb) VALUES (1); 970 SELECT 11, * FROM t1 LEFT JOIN t0 WHERE aa ISNULL; 971 SELECT 12, * FROM t1 LEFT JOIN t0 WHERE +aa ISNULL; 972 SELECT 13, * FROM t1 LEFT JOIN t0 ON aa ISNULL; 973 SELECT 14, * FROM t1 LEFT JOIN t0 ON +aa ISNULL; 974 CREATE INDEX i0 ON t0(aa) WHERE aa ISNULL; 975 SELECT 21, * FROM t1 LEFT JOIN t0 WHERE aa ISNULL; 976 SELECT 22, * FROM t1 LEFT JOIN t0 WHERE +aa ISNULL; 977 SELECT 23, * FROM t1 LEFT JOIN t0 ON aa ISNULL; 978 SELECT 24, * FROM t1 LEFT JOIN t0 ON +aa ISNULL; 979} {13 1 {} 14 1 {} 23 1 {} 24 1 {}} 980 981# 2019-12-18 problem with a LEFT JOIN where the RHS is a view. 982# Detected by Yongheng and Rui. 983# Follows from the optimization attempt of check-in 41c27bc0ff1d3135 984# on 2017-04-18 985# 986reset_db 987do_execsql_test join-22.10 { 988 CREATE TABLE t0(a, b); 989 CREATE INDEX t0a ON t0(a); 990 INSERT INTO t0 VALUES(10,10),(10,11),(10,12); 991 SELECT DISTINCT c FROM t0 LEFT JOIN (SELECT a+1 AS c FROM t0) ORDER BY c ; 992} {11} 993 994# 2019-12-22 ticket 7929c1efb2d67e98 995# 996reset_db 997ifcapable vtab { 998do_execsql_test join-23.10 { 999 CREATE TABLE t0(c0); 1000 INSERT INTO t0(c0) VALUES(123); 1001 CREATE VIEW v0(c0) AS SELECT 0 GROUP BY 1; 1002 SELECT t0.c0, v0.c0, vt0.name 1003 FROM v0, t0 LEFT JOIN pragma_table_info('t0') AS vt0 1004 ON vt0.name LIKE 'c0' 1005 WHERE v0.c0 == 0; 1006} {123 0 c0} 1007} 1008 1009#------------------------------------------------------------------------- 1010reset_db 1011do_execsql_test join-24.1 { 1012 CREATE TABLE t1(a PRIMARY KEY, x); 1013 CREATE TABLE t2(b INT); 1014 CREATE INDEX t1aa ON t1(a, a); 1015 1016 INSERT INTO t1 VALUES('abc', 'def'); 1017 INSERT INTO t2 VALUES(1); 1018} 1019 1020do_execsql_test join-24.2 { 1021 SELECT * FROM t2 JOIN t1 WHERE a='abc' AND x='def'; 1022} {1 abc def} 1023do_execsql_test join-24.3 { 1024 SELECT * FROM t2 JOIN t1 WHERE a='abc' AND x='abc'; 1025} {} 1026 1027do_execsql_test join-24.2 { 1028 SELECT * FROM t2 LEFT JOIN t1 ON a=0 WHERE (x='x' OR x IS NULL); 1029} {1 {} {}} 1030 1031# 2020-09-30 ticket 66e4b0e271c47145 1032# The query flattener inserts an "expr AND expr" expression as a substitution 1033# for the column of a view where that view column is part of an ON expression 1034# of a LEFT JOIN. 1035# 1036reset_db 1037do_execsql_test join-25.1 { 1038 CREATE TABLE t0(c0 INT); 1039 CREATE VIEW v0 AS SELECT (NULL AND 5) as c0 FROM t0; 1040 INSERT INTO t0(c0) VALUES (NULL); 1041 SELECT count(*) FROM v0 LEFT JOIN t0 ON v0.c0; 1042} {1} 1043 1044# 2022-04-21 Parser issue detected by dbsqlfuzz 1045# 1046reset_db 1047do_catchsql_test join-26.1 { 1048 CREATE TABLE t4(a,b); 1049 CREATE TABLE t5(a,c); 1050 CREATE TABLE t6(a,d); 1051 SELECT * FROM t5 JOIN ((t4 JOIN (t5 JOIN t6)) t7); 1052} {/1 {.*}/} 1053 1054finish_test 1055