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} 275do_test join-2.3 { 276 catchsql { 277 SELECT * FROM t1 NATURAL RIGHT OUTER JOIN t2; 278 } 279} {1 {RIGHT and FULL OUTER JOINs are not currently supported}} 280do_test join-2.4 { 281 execsql { 282 SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.d 283 } 284} {1 2 3 {} {} {} 2 3 4 {} {} {} 3 4 5 1 2 3} 285do_test join-2.5 { 286 execsql { 287 SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.d WHERE t1.a>1 288 } 289} {2 3 4 {} {} {} 3 4 5 1 2 3} 290do_test join-2.6 { 291 execsql { 292 SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.d WHERE t2.b IS NULL OR t2.b>1 293 } 294} {1 2 3 {} {} {} 2 3 4 {} {} {}} 295 296do_test join-3.1 { 297 catchsql { 298 SELECT * FROM t1 NATURAL JOIN t2 ON t1.a=t2.b; 299 } 300} {1 {a NATURAL join may not have an ON or USING clause}} 301do_test join-3.2 { 302 catchsql { 303 SELECT * FROM t1 NATURAL JOIN t2 USING(b); 304 } 305} {1 {a NATURAL join may not have an ON or USING clause}} 306do_test join-3.3 { 307 catchsql { 308 SELECT * FROM t1 JOIN t2 ON t1.a=t2.b USING(b); 309 } 310} {1 {near "USING": syntax error}} 311do_test join-3.4.1 { 312 catchsql { 313 SELECT * FROM t1 JOIN t2 USING(a); 314 } 315} {1 {cannot join using column a - column not present in both tables}} 316do_test join-3.4.2 { 317 catchsql { 318 SELECT * FROM t1 JOIN t2 USING(d); 319 } 320} {1 {cannot join using column d - column not present in both tables}} 321do_test join-3.5 { 322 catchsql { SELECT * FROM t1 USING(a) } 323} {1 {a JOIN clause is required before USING}} 324do_test join-3.6 { 325 catchsql { 326 SELECT * FROM t1 JOIN t2 ON t3.a=t2.b; 327 } 328} {1 {no such column: t3.a}} 329do_test join-3.7 { 330 catchsql { 331 SELECT * FROM t1 INNER OUTER JOIN t2; 332 } 333} {1 {unknown or unsupported join type: INNER OUTER}} 334do_test join-3.8 { 335 catchsql { 336 SELECT * FROM t1 INNER OUTER CROSS JOIN t2; 337 } 338} {1 {unknown or unsupported join type: INNER OUTER CROSS}} 339do_test join-3.9 { 340 catchsql { 341 SELECT * FROM t1 OUTER NATURAL INNER JOIN t2; 342 } 343} {1 {unknown or unsupported join type: OUTER NATURAL INNER}} 344do_test join-3.10 { 345 catchsql { 346 SELECT * FROM t1 LEFT BOGUS JOIN t2; 347 } 348} {1 {unknown or unsupported join type: LEFT BOGUS}} 349do_test join-3.11 { 350 catchsql { 351 SELECT * FROM t1 INNER BOGUS CROSS JOIN t2; 352 } 353} {1 {unknown or unsupported join type: INNER BOGUS CROSS}} 354do_test join-3.12 { 355 catchsql { 356 SELECT * FROM t1 NATURAL AWK SED JOIN t2; 357 } 358} {1 {unknown or unsupported join type: NATURAL AWK SED}} 359 360do_test join-4.1 { 361 execsql { 362 BEGIN; 363 CREATE TABLE t5(a INTEGER PRIMARY KEY); 364 CREATE TABLE t6(a INTEGER); 365 INSERT INTO t6 VALUES(NULL); 366 INSERT INTO t6 VALUES(NULL); 367 INSERT INTO t6 SELECT * FROM t6; 368 INSERT INTO t6 SELECT * FROM t6; 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 COMMIT; 374 } 375 execsql { 376 SELECT * FROM t6 NATURAL JOIN t5; 377 } 378} {} 379do_test join-4.2 { 380 execsql { 381 SELECT * FROM t6, t5 WHERE t6.a<t5.a; 382 } 383} {} 384do_test join-4.3 { 385 execsql { 386 SELECT * FROM t6, t5 WHERE t6.a>t5.a; 387 } 388} {} 389do_test join-4.4 { 390 execsql { 391 UPDATE t6 SET a='xyz'; 392 SELECT * FROM t6 NATURAL JOIN t5; 393 } 394} {} 395do_test join-4.6 { 396 execsql { 397 SELECT * FROM t6, t5 WHERE t6.a<t5.a; 398 } 399} {} 400do_test join-4.7 { 401 execsql { 402 SELECT * FROM t6, t5 WHERE t6.a>t5.a; 403 } 404} {} 405do_test join-4.8 { 406 execsql { 407 UPDATE t6 SET a=1; 408 SELECT * FROM t6 NATURAL JOIN t5; 409 } 410} {} 411do_test join-4.9 { 412 execsql { 413 SELECT * FROM t6, t5 WHERE t6.a<t5.a; 414 } 415} {} 416do_test join-4.10 { 417 execsql { 418 SELECT * FROM t6, t5 WHERE t6.a>t5.a; 419 } 420} {} 421 422do_test join-5.1 { 423 execsql { 424 BEGIN; 425 create table centros (id integer primary key, centro); 426 INSERT INTO centros VALUES(1,'xxx'); 427 create table usuarios (id integer primary key, nombre, apellidos, 428 idcentro integer); 429 INSERT INTO usuarios VALUES(1,'a','aa',1); 430 INSERT INTO usuarios VALUES(2,'b','bb',1); 431 INSERT INTO usuarios VALUES(3,'c','cc',NULL); 432 create index idcentro on usuarios (idcentro); 433 END; 434 select usuarios.id, usuarios.nombre, centros.centro from 435 usuarios left outer join centros on usuarios.idcentro = centros.id; 436 } 437} {1 a xxx 2 b xxx 3 c {}} 438 439# A test for ticket #247. 440# 441do_test join-7.1 { 442 sqlite3_db_config db SQLITE_DBCONFIG_DQS_DML 1 443 execsql { 444 CREATE TABLE t7 (x, y); 445 INSERT INTO t7 VALUES ("pa1", 1); 446 INSERT INTO t7 VALUES ("pa2", NULL); 447 INSERT INTO t7 VALUES ("pa3", NULL); 448 INSERT INTO t7 VALUES ("pa4", 2); 449 INSERT INTO t7 VALUES ("pa30", 131); 450 INSERT INTO t7 VALUES ("pa31", 130); 451 INSERT INTO t7 VALUES ("pa28", NULL); 452 453 CREATE TABLE t8 (a integer primary key, b); 454 INSERT INTO t8 VALUES (1, "pa1"); 455 INSERT INTO t8 VALUES (2, "pa4"); 456 INSERT INTO t8 VALUES (3, NULL); 457 INSERT INTO t8 VALUES (4, NULL); 458 INSERT INTO t8 VALUES (130, "pa31"); 459 INSERT INTO t8 VALUES (131, "pa30"); 460 461 SELECT coalesce(t8.a,999) from t7 LEFT JOIN t8 on y=a; 462 } 463} {1 999 999 2 131 130 999} 464 465# Make sure a left join where the right table is really a view that 466# is itself a join works right. Ticket #306. 467# 468ifcapable view { 469do_test join-8.1 { 470 execsql { 471 BEGIN; 472 CREATE TABLE t9(a INTEGER PRIMARY KEY, b); 473 INSERT INTO t9 VALUES(1,11); 474 INSERT INTO t9 VALUES(2,22); 475 CREATE TABLE t10(x INTEGER PRIMARY KEY, y); 476 INSERT INTO t10 VALUES(1,2); 477 INSERT INTO t10 VALUES(3,3); 478 CREATE TABLE t11(p INTEGER PRIMARY KEY, q); 479 INSERT INTO t11 VALUES(2,111); 480 INSERT INTO t11 VALUES(3,333); 481 CREATE VIEW v10_11 AS SELECT x, q FROM t10, t11 WHERE t10.y=t11.p; 482 COMMIT; 483 SELECT * FROM t9 LEFT JOIN v10_11 ON( a=x ); 484 } 485} {1 11 1 111 2 22 {} {}} 486ifcapable subquery { 487 do_test join-8.2 { 488 execsql { 489 SELECT * FROM t9 LEFT JOIN (SELECT x, q FROM t10, t11 WHERE t10.y=t11.p) 490 ON( a=x); 491 } 492 } {1 11 1 111 2 22 {} {}} 493} 494do_test join-8.3 { 495 execsql { 496 SELECT * FROM v10_11 LEFT JOIN t9 ON( a=x ); 497 } 498} {1 111 1 11 3 333 {} {}} 499ifcapable subquery { 500 # Constant expressions in a subquery that is the right element of a 501 # LEFT JOIN evaluate to NULL for rows where the LEFT JOIN does not 502 # match. Ticket #3300 503 do_test join-8.4 { 504 execsql { 505 SELECT * FROM t9 LEFT JOIN (SELECT 44, p, q FROM t11) AS sub1 ON p=a 506 } 507 } {1 11 {} {} {} 2 22 44 2 111} 508} 509} ;# ifcapable view 510 511# Ticket #350 describes a scenario where LEFT OUTER JOIN does not 512# function correctly if the right table in the join is really 513# subquery. 514# 515# To test the problem, we generate the same LEFT OUTER JOIN in two 516# separate selects but with on using a subquery and the other calling 517# the table directly. Then connect the two SELECTs using an EXCEPT. 518# Both queries should generate the same results so the answer should 519# be an empty set. 520# 521ifcapable compound { 522do_test join-9.1 { 523 execsql { 524 BEGIN; 525 CREATE TABLE t12(a,b); 526 INSERT INTO t12 VALUES(1,11); 527 INSERT INTO t12 VALUES(2,22); 528 CREATE TABLE t13(b,c); 529 INSERT INTO t13 VALUES(22,222); 530 COMMIT; 531 } 532} {} 533 534ifcapable subquery { 535 do_test join-9.1.1 { 536 execsql { 537 SELECT * FROM t12 NATURAL LEFT JOIN t13 538 EXCEPT 539 SELECT * FROM t12 NATURAL LEFT JOIN (SELECT * FROM t13 WHERE b>0); 540 } 541 } {} 542} 543ifcapable view { 544 do_test join-9.2 { 545 execsql { 546 CREATE VIEW v13 AS SELECT * FROM t13 WHERE b>0; 547 SELECT * FROM t12 NATURAL LEFT JOIN t13 548 EXCEPT 549 SELECT * FROM t12 NATURAL LEFT JOIN v13; 550 } 551 } {} 552} ;# ifcapable view 553} ;# ifcapable compound 554 555ifcapable subquery { 556 # Ticket #1697: Left Join WHERE clause terms that contain an 557 # aggregate subquery. 558 # 559 do_test join-10.1 { 560 execsql { 561 CREATE TABLE t21(a,b,c); 562 CREATE TABLE t22(p,q); 563 CREATE INDEX i22 ON t22(q); 564 SELECT a FROM t21 LEFT JOIN t22 ON b=p WHERE q= 565 (SELECT max(m.q) FROM t22 m JOIN t21 n ON n.b=m.p WHERE n.c=1); 566 } 567 } {} 568 569 # Test a LEFT JOIN when the right-hand side of hte join is an empty 570 # sub-query. Seems fine. 571 # 572 do_test join-10.2 { 573 execsql { 574 CREATE TABLE t23(a, b, c); 575 CREATE TABLE t24(a, b, c); 576 INSERT INTO t23 VALUES(1, 2, 3); 577 } 578 execsql { 579 SELECT * FROM t23 LEFT JOIN t24; 580 } 581 } {1 2 3 {} {} {}} 582 do_test join-10.3 { 583 execsql { 584 SELECT * FROM t23 LEFT JOIN (SELECT * FROM t24); 585 } 586 } {1 2 3 {} {} {}} 587 588} ;# ifcapable subquery 589 590#------------------------------------------------------------------------- 591# The following tests are to ensure that bug b73fb0bd64 is fixed. 592# 593do_test join-11.1 { 594 drop_all_tables 595 execsql { 596 CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT); 597 CREATE TABLE t2(a INTEGER PRIMARY KEY, b TEXT); 598 INSERT INTO t1 VALUES(1,'abc'); 599 INSERT INTO t1 VALUES(2,'def'); 600 INSERT INTO t2 VALUES(1,'abc'); 601 INSERT INTO t2 VALUES(2,'def'); 602 SELECT * FROM t1 NATURAL JOIN t2; 603 } 604} {1 abc 2 def} 605 606do_test join-11.2 { 607 execsql { SELECT a FROM t1 JOIN t1 USING (a)} 608} {1 2} 609do_test join-11.3 { 610 execsql { SELECT a FROM t1 JOIN t1 AS t2 USING (a)} 611} {1 2} 612do_test join-11.3 { 613 execsql { SELECT * FROM t1 NATURAL JOIN t1 AS t2} 614} {1 abc 2 def} 615do_test join-11.4 { 616 execsql { SELECT * FROM t1 NATURAL JOIN t1 } 617} {1 abc 2 def} 618 619do_test join-11.5 { 620 drop_all_tables 621 execsql { 622 CREATE TABLE t1(a COLLATE nocase, b); 623 CREATE TABLE t2(a, b); 624 INSERT INTO t1 VALUES('ONE', 1); 625 INSERT INTO t1 VALUES('two', 2); 626 INSERT INTO t2 VALUES('one', 1); 627 INSERT INTO t2 VALUES('two', 2); 628 } 629} {} 630do_test join-11.6 { 631 execsql { SELECT * FROM t1 NATURAL JOIN t2 } 632} {ONE 1 two 2} 633do_test join-11.7 { 634 execsql { SELECT * FROM t2 NATURAL JOIN t1 } 635} {two 2} 636 637do_test join-11.8 { 638 drop_all_tables 639 execsql { 640 CREATE TABLE t1(a, b TEXT); 641 CREATE TABLE t2(b INTEGER, a); 642 INSERT INTO t1 VALUES('one', '1.0'); 643 INSERT INTO t1 VALUES('two', '2'); 644 INSERT INTO t2 VALUES(1, 'one'); 645 INSERT INTO t2 VALUES(2, 'two'); 646 } 647} {} 648do_test join-11.9 { 649 execsql { SELECT * FROM t1 NATURAL JOIN t2 } 650} {one 1.0 two 2} 651do_test join-11.10 { 652 execsql { SELECT * FROM t2 NATURAL JOIN t1 } 653} {1 one 2 two} 654 655#------------------------------------------------------------------------- 656# Test that at most 64 tables are allowed in a join. 657# 658do_execsql_test join-12.1 { 659 CREATE TABLE t14(x); 660 INSERT INTO t14 VALUES('abcdefghij'); 661} 662 663proc jointest {tn nTbl res} { 664 set sql "SELECT 1 FROM [string repeat t14, [expr $nTbl-1]] t14;" 665 uplevel [list do_catchsql_test $tn $sql $res] 666} 667 668jointest join-12.2 30 {0 1} 669jointest join-12.3 63 {0 1} 670jointest join-12.4 64 {0 1} 671jointest join-12.5 65 {1 {at most 64 tables in a join}} 672jointest join-12.6 66 {1 {at most 64 tables in a join}} 673jointest join-12.7 127 {1 {at most 64 tables in a join}} 674jointest join-12.8 128 {1 {at most 64 tables in a join}} 675 676# As of 2019-01-17, the number of elements in a SrcList is limited 677# to 200. The following tests still run, but the answer is now 678# an SQLITE_NOMEM error. 679# 680# jointest join-12.9 1000 {1 {at most 64 tables in a join}} 681# 682# If SQLite is built with SQLITE_MEMDEBUG, then the huge number of realloc() 683# calls made by the following test cases are too time consuming to run. 684# Without SQLITE_MEMDEBUG, realloc() is fast enough that these are not 685# a problem. 686# 687# ifcapable pragma&&compileoption_diags { 688# if {[lsearch [db eval {PRAGMA compile_options}] MEMDEBUG]<0} { 689# jointest join-12.10 65534 {1 {at most 64 tables in a join}} 690# jointest join-12.11 65535 {1 {too many references to "t14": max 65535}} 691# jointest join-12.12 65536 {1 {too many references to "t14": max 65535}} 692# jointest join-12.13 65537 {1 {too many references to "t14": max 65535}} 693# } 694# } 695 696 697#------------------------------------------------------------------------- 698# Test a problem with reordering tables following a LEFT JOIN. 699# 700do_execsql_test join-13.0 { 701 CREATE TABLE aa(a); 702 CREATE TABLE bb(b); 703 CREATE TABLE cc(c); 704 705 INSERT INTO aa VALUES(45); 706 INSERT INTO cc VALUES(45); 707 INSERT INTO cc VALUES(45); 708} 709 710do_execsql_test join-13.1 { 711 SELECT * FROM aa LEFT JOIN bb, cc WHERE cc.c=aa.a; 712} {45 {} 45 45 {} 45} 713 714# In the following, the order of [cc] and [bb] must not be exchanged, even 715# though this would be helpful if the query used an inner join. 716do_execsql_test join-13.2 { 717 CREATE INDEX ccc ON cc(c); 718 SELECT * FROM aa LEFT JOIN bb, cc WHERE cc.c=aa.a; 719} {45 {} 45 45 {} 45} 720 721# Verify that that iTable attributes the TK_IF_NULL_ROW operators in the 722# expression tree are correctly updated by the query flattener. This was 723# a bug discovered on 2017-05-22 by Mark Brand. 724# 725do_execsql_test join-14.1 { 726 SELECT * 727 FROM (SELECT 1 a) AS x 728 LEFT JOIN (SELECT 1, * FROM (SELECT * FROM (SELECT 1))); 729} {1 1 1} 730do_execsql_test join-14.2 { 731 SELECT * 732 FROM (SELECT 1 a) AS x 733 LEFT JOIN (SELECT 1, * FROM (SELECT * FROM (SELECT * FROM (SELECT 1)))) AS y 734 JOIN (SELECT * FROM (SELECT 9)) AS z; 735} {1 1 1 9} 736do_execsql_test join-14.3 { 737 SELECT * 738 FROM (SELECT 111) 739 LEFT JOIN (SELECT cc+222, * FROM (SELECT * FROM (SELECT 333 cc))); 740} {111 555 333} 741 742do_execsql_test join-14.4 { 743 DROP TABLE IF EXISTS t1; 744 CREATE TABLE t1(c PRIMARY KEY, a TEXT(10000), b TEXT(10000)); 745 SELECT * FROM (SELECT 111) LEFT JOIN (SELECT c+222 FROM t1) GROUP BY 1; 746} {111 {}} 747do_execsql_test join-14.5 { 748 DROP TABLE IF EXISTS t1; 749 CREATE TABLE t1(c PRIMARY KEY) WITHOUT ROWID; 750 SELECT * FROM (SELECT 111) LEFT JOIN (SELECT c+222 FROM t1) GROUP BY 1; 751} {111 {}} 752 753# Verify the fix to ticket 754# https://www.sqlite.org/src/tktview/7fde638e94287d2c948cd9389 755# 756db close 757sqlite3 db :memory: 758do_execsql_test join-14.10 { 759 CREATE TABLE t1(a); 760 INSERT INTO t1 VALUES(1),(2),(3); 761 CREATE VIEW v2 AS SELECT a, 1 AS b FROM t1; 762 CREATE TABLE t3(x); 763 INSERT INTO t3 VALUES(2),(4); 764 SELECT *, '|' FROM t3 LEFT JOIN v2 ON a=x WHERE b=1; 765} {2 2 1 |} 766do_execsql_test join-14.11 { 767 SELECT *, '|' FROM t3 LEFT JOIN v2 ON a=x WHERE b+1=x; 768} {2 2 1 |} 769do_execsql_test join-14.12 { 770 SELECT *, '|' FROM t3 LEFT JOIN v2 ON a=x ORDER BY b; 771} {4 {} {} | 2 2 1 |} 772 773# Verify the fix for ticket 774# https://www.sqlite.org/src/info/892fc34f173e99d8 775# 776db close 777sqlite3 db :memory: 778do_execsql_test join-14.20 { 779 CREATE TABLE t1(id INTEGER PRIMARY KEY); 780 CREATE TABLE t2(id INTEGER PRIMARY KEY, c2 INTEGER); 781 CREATE TABLE t3(id INTEGER PRIMARY KEY, c3 INTEGER); 782 INSERT INTO t1(id) VALUES(456); 783 INSERT INTO t3(id) VALUES(1),(2); 784 SELECT t1.id, x2.id, x3.id 785 FROM t1 786 LEFT JOIN (SELECT * FROM t2) AS x2 ON t1.id=x2.c2 787 LEFT JOIN t3 AS x3 ON x2.id=x3.c3; 788} {456 {} {}} 789 790# 2018-03-24. 791# E.Pasma discovered that the LEFT JOIN strength reduction optimization 792# was misbehaving. The problem turned out to be that the 793# sqlite3ExprImpliesNotNull() routine was saying that CASE expressions 794# like 795# 796# CASE WHEN true THEN true ELSE x=0 END 797# 798# could never be true if x is NULL. The following test cases verify 799# that this error has been resolved. 800# 801db close 802sqlite3 db :memory: 803do_execsql_test join-15.100 { 804 CREATE TABLE t1(a INT, b INT); 805 INSERT INTO t1 VALUES(1,2),(3,4); 806 CREATE TABLE t2(x INT, y INT); 807 SELECT *, 'x' 808 FROM t1 LEFT JOIN t2 809 WHERE CASE WHEN FALSE THEN a=x ELSE 1 END; 810} {1 2 {} {} x 3 4 {} {} x} 811do_execsql_test join-15.105 { 812 SELECT *, 'x' 813 FROM t1 LEFT JOIN t2 814 WHERE a IN (1,3,x,y); 815} {1 2 {} {} x 3 4 {} {} x} 816do_execsql_test join-15.106a { 817 SELECT *, 'x' 818 FROM t1 LEFT JOIN t2 819 WHERE NOT ( 'x'='y' AND t2.y=1 ); 820} {1 2 {} {} x 3 4 {} {} x} 821do_execsql_test join-15.106b { 822 SELECT *, 'x' 823 FROM t1 LEFT JOIN t2 824 WHERE ~ ( 'x'='y' AND t2.y=1 ); 825} {1 2 {} {} x 3 4 {} {} x} 826do_execsql_test join-15.107 { 827 SELECT *, 'x' 828 FROM t1 LEFT JOIN t2 829 WHERE t2.y IS NOT 'abc' 830} {1 2 {} {} x 3 4 {} {} x} 831do_execsql_test join-15.110 { 832 DROP TABLE t1; 833 DROP TABLE t2; 834 CREATE TABLE t1(a INTEGER PRIMARY KEY, b INTEGER); 835 INSERT INTO t1(a,b) VALUES(1,0),(11,1),(12,1),(13,1),(121,12); 836 CREATE INDEX t1b ON t1(b); 837 CREATE TABLE t2(x INTEGER PRIMARY KEY); 838 INSERT INTO t2(x) VALUES(0),(1); 839 SELECT a1, a2, a3, a4, a5 840 FROM (SELECT a AS a1 FROM t1 WHERE b=0) 841 JOIN (SELECT x AS x1 FROM t2) 842 LEFT JOIN (SELECT a AS a2, b AS b2 FROM t1) 843 ON x1 IS TRUE AND b2=a1 844 JOIN (SELECT x AS x2 FROM t2) 845 ON x2<=CASE WHEN x1 THEN CASE WHEN a2 THEN 1 ELSE -1 END ELSE 0 END 846 LEFT JOIN (SELECT a AS a3, b AS b3 FROM t1) 847 ON x2 IS TRUE AND b3=a2 848 JOIN (SELECT x AS x3 FROM t2) 849 ON x3<=CASE WHEN x2 THEN CASE WHEN a3 THEN 1 ELSE -1 END ELSE 0 END 850 LEFT JOIN (SELECT a AS a4, b AS b4 FROM t1) 851 ON x3 IS TRUE AND b4=a3 852 JOIN (SELECT x AS x4 FROM t2) 853 ON x4<=CASE WHEN x3 THEN CASE WHEN a4 THEN 1 ELSE -1 END ELSE 0 END 854 LEFT JOIN (SELECT a AS a5, b AS b5 FROM t1) 855 ON x4 IS TRUE AND b5=a4 856 ORDER BY a1, a2, a3, a4, a5; 857} {1 {} {} {} {} 1 11 {} {} {} 1 12 {} {} {} 1 12 121 {} {} 1 13 {} {} {}} 858 859# 2019-02-05 Ticket https://www.sqlite.org/src/tktview/5948e09b8c415bc45da5c 860# Error in join due to the LEFT JOIN strength reduction optimization. 861# 862do_execsql_test join-16.100 { 863 DROP TABLE IF EXISTS t1; 864 DROP TABLE IF EXISTS t2; 865 CREATE TABLE t1(a INT); 866 INSERT INTO t1(a) VALUES(1); 867 CREATE TABLE t2(b INT); 868 SELECT a, b 869 FROM t1 LEFT JOIN t2 ON 0 870 WHERE (b IS NOT NULL)=0; 871} {1 {}} 872 873# 2019-08-17 ticket https://sqlite.org/src/tktview/6710d2f7a13a299728ab 874# Ensure that constants that derive from the right-hand table of a LEFT JOIN 875# are never factored out, since they are not really constant. 876# 877do_execsql_test join-17.100 { 878 DROP TABLE IF EXISTS t1; 879 CREATE TABLE t1(x); 880 INSERT INTO t1(x) VALUES(0),(1); 881 SELECT * FROM t1 LEFT JOIN (SELECT abs(1) AS y FROM t1) ON x WHERE NOT(y='a'); 882} {1 1 1 1} 883do_execsql_test join-17.110 { 884 SELECT * FROM t1 LEFT JOIN (SELECT abs(1)+2 AS y FROM t1) ON x 885 WHERE NOT(y='a'); 886} {1 3 1 3} 887 888#------------------------------------------------------------------------- 889reset_db 890do_execsql_test join-18.1 { 891 CREATE TABLE t0(a); 892 CREATE TABLE t1(b); 893 CREATE VIEW v0 AS SELECT a FROM t1 LEFT JOIN t0; 894 INSERT INTO t1 VALUES (1); 895} {} 896 897do_execsql_test join-18.2 { 898 SELECT * FROM v0 WHERE NOT(v0.a IS FALSE); 899} {{}} 900 901do_execsql_test join-18.3 { 902 SELECT * FROM t1 LEFT JOIN t0 WHERE NOT(a IS FALSE); 903} {1 {}} 904 905do_execsql_test join-18.4 { 906 SELECT NOT(v0.a IS FALSE) FROM v0 907} {1} 908 909#------------------------------------------------------------------------- 910reset_db 911do_execsql_test join-19.0 { 912 CREATE TABLE t1(a); 913 CREATE TABLE t2(b); 914 INSERT INTO t1(a) VALUES(0); 915 CREATE VIEW v0(c) AS SELECT t2.b FROM t1 LEFT JOIN t2; 916} 917 918do_execsql_test join-19.1 { 919 SELECT * FROM v0 WHERE v0.c NOTNULL NOTNULL; 920} {{}} 921 922do_execsql_test join-19.2 { 923 SELECT * FROM t1 LEFT JOIN t2 924} {0 {}} 925 926do_execsql_test join-19.3 { 927 SELECT * FROM t1 LEFT JOIN t2 WHERE (b IS NOT NULL) IS NOT NULL; 928} {0 {}} 929 930do_execsql_test join-19.4 { 931 SELECT (b IS NOT NULL) IS NOT NULL FROM t1 LEFT JOIN t2 932} {1} 933 934do_execsql_test join-19.5 { 935 SELECT * FROM t1 LEFT JOIN t2 WHERE 936 (b IS NOT NULL AND b IS NOT NULL) IS NOT NULL; 937} {0 {}} 938 939# 2019-11-02 ticket 623eff57e76d45f6 940# The optimization of exclusing the WHERE expression of a partial index 941# from the WHERE clause of the query if the index is used does not work 942# of the table of the index is the right-hand table of a LEFT JOIN. 943# 944db close 945sqlite3 db :memory: 946do_execsql_test join-20.1 { 947 CREATE TABLE t1(c1); 948 CREATE TABLE t0(c0); 949 INSERT INTO t0(c0) VALUES (0); 950 SELECT * FROM t0 LEFT JOIN t1 WHERE NULL IN (c1); 951} {} 952do_execsql_test join-20.2 { 953 CREATE INDEX t1x ON t1(0) WHERE NULL IN (c1); 954 SELECT * FROM t0 LEFT JOIN t1 WHERE NULL IN (c1); 955} {} 956 957# 2019-11-30 ticket 7f39060a24b47353 958# Do not allow a WHERE clause term to qualify a partial index on the 959# right table of a LEFT JOIN. 960# 961do_execsql_test join-21.10 { 962 DROP TABLE t0; 963 DROP TABLE t1; 964 CREATE TABLE t0(aa); 965 CREATE TABLE t1(bb); 966 INSERT INTO t0(aa) VALUES (1); 967 INSERT INTO t1(bb) VALUES (1); 968 SELECT 11, * FROM t1 LEFT JOIN t0 WHERE aa ISNULL; 969 SELECT 12, * FROM t1 LEFT JOIN t0 WHERE +aa ISNULL; 970 SELECT 13, * FROM t1 LEFT JOIN t0 ON aa ISNULL; 971 SELECT 14, * FROM t1 LEFT JOIN t0 ON +aa ISNULL; 972 CREATE INDEX i0 ON t0(aa) WHERE aa ISNULL; 973 SELECT 21, * FROM t1 LEFT JOIN t0 WHERE aa ISNULL; 974 SELECT 22, * FROM t1 LEFT JOIN t0 WHERE +aa ISNULL; 975 SELECT 23, * FROM t1 LEFT JOIN t0 ON aa ISNULL; 976 SELECT 24, * FROM t1 LEFT JOIN t0 ON +aa ISNULL; 977} {13 1 {} 14 1 {} 23 1 {} 24 1 {}} 978 979# 2019-12-18 problem with a LEFT JOIN where the RHS is a view. 980# Detected by Yongheng and Rui. 981# Follows from the optimization attempt of check-in 41c27bc0ff1d3135 982# on 2017-04-18 983# 984reset_db 985do_execsql_test join-22.10 { 986 CREATE TABLE t0(a, b); 987 CREATE INDEX t0a ON t0(a); 988 INSERT INTO t0 VALUES(10,10),(10,11),(10,12); 989 SELECT DISTINCT c FROM t0 LEFT JOIN (SELECT a+1 AS c FROM t0) ORDER BY c ; 990} {11} 991 992# 2019-12-22 ticket 7929c1efb2d67e98 993# 994reset_db 995ifcapable vtab { 996do_execsql_test join-23.10 { 997 CREATE TABLE t0(c0); 998 INSERT INTO t0(c0) VALUES(123); 999 CREATE VIEW v0(c0) AS SELECT 0 GROUP BY 1; 1000 SELECT t0.c0, v0.c0, vt0.name 1001 FROM v0, t0 LEFT JOIN pragma_table_info('t0') AS vt0 1002 ON vt0.name LIKE 'c0' 1003 WHERE v0.c0 == 0; 1004} {123 0 c0} 1005} 1006 1007#------------------------------------------------------------------------- 1008reset_db 1009do_execsql_test join-24.1 { 1010 CREATE TABLE t1(a PRIMARY KEY, x); 1011 CREATE TABLE t2(b INT); 1012 CREATE INDEX t1aa ON t1(a, a); 1013 1014 INSERT INTO t1 VALUES('abc', 'def'); 1015 INSERT INTO t2 VALUES(1); 1016} 1017 1018do_execsql_test join-24.2 { 1019 SELECT * FROM t2 JOIN t1 WHERE a='abc' AND x='def'; 1020} {1 abc def} 1021do_execsql_test join-24.3 { 1022 SELECT * FROM t2 JOIN t1 WHERE a='abc' AND x='abc'; 1023} {} 1024 1025do_execsql_test join-24.2 { 1026 SELECT * FROM t2 LEFT JOIN t1 ON a=0 WHERE (x='x' OR x IS NULL); 1027} {1 {} {}} 1028 1029# 2020-09-30 ticket 66e4b0e271c47145 1030# The query flattener inserts an "expr AND expr" expression as a substitution 1031# for the column of a view where that view column is part of an ON expression 1032# of a LEFT JOIN. 1033# 1034reset_db 1035do_execsql_test join-25.1 { 1036 CREATE TABLE t0(c0 INT); 1037 CREATE VIEW v0 AS SELECT (NULL AND 5) as c0 FROM t0; 1038 INSERT INTO t0(c0) VALUES (NULL); 1039 SELECT count(*) FROM v0 LEFT JOIN t0 ON v0.c0; 1040} {1} 1041 1042 1043finish_test 1044