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# EVIDENCE-OF: R-52129-05406 you can say things like "OUTER LEFT NATURAL 254# JOIN" which means the same as "NATURAL LEFT OUTER JOIN". 255do_test join-2.1b { 256 execsql { 257 SELECT * FROM t1 OUTER LEFT NATURAL JOIN t2; 258 } 259} {1 2 3 4 2 3 4 5 3 4 5 {}} 260do_test join-2.1c { 261 execsql { 262 SELECT * FROM t1 NATURAL LEFT OUTER JOIN t2; 263 } 264} {1 2 3 4 2 3 4 5 3 4 5 {}} 265 266# ticket #3522 267do_test join-2.1.1 { 268 execsql2 { 269 SELECT * FROM t1 NATURAL LEFT JOIN t2; 270 } 271} {a 1 b 2 c 3 d 4 a 2 b 3 c 4 d 5 a 3 b 4 c 5 d {}} 272do_test join-2.1.2 { 273 execsql2 { 274 SELECT t1.* FROM t1 NATURAL LEFT JOIN t2; 275 } 276} {a 1 b 2 c 3 a 2 b 3 c 4 a 3 b 4 c 5} 277do_test join-2.1.3 { 278 execsql2 { 279 SELECT t2.* FROM t1 NATURAL LEFT JOIN t2; 280 } 281} {b 2 c 3 d 4 b 3 c 4 d 5 b {} c {} d {}} 282 283do_test join-2.2 { 284 execsql { 285 SELECT * FROM t2 NATURAL LEFT OUTER JOIN t1; 286 } 287} {1 2 3 {} 2 3 4 1 3 4 5 2} 288 289#do_test join-2.3 { 290# catchsql { 291# SELECT * FROM t1 NATURAL RIGHT OUTER JOIN t2; 292# } 293#} {1 {RIGHT and FULL OUTER JOINs are not currently supported}} 294 295do_test join-2.4 { 296 execsql { 297 SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.d 298 } 299} {1 2 3 {} {} {} 2 3 4 {} {} {} 3 4 5 1 2 3} 300do_test join-2.5 { 301 execsql { 302 SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.d WHERE t1.a>1 303 } 304} {2 3 4 {} {} {} 3 4 5 1 2 3} 305do_test join-2.6 { 306 execsql { 307 SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.d WHERE t2.b IS NULL OR t2.b>1 308 } 309} {1 2 3 {} {} {} 2 3 4 {} {} {}} 310 311do_test join-3.1 { 312 catchsql { 313 SELECT * FROM t1 NATURAL JOIN t2 ON t1.a=t2.b; 314 } 315} {1 {a NATURAL join may not have an ON or USING clause}} 316do_test join-3.2 { 317 catchsql { 318 SELECT * FROM t1 NATURAL JOIN t2 USING(b); 319 } 320} {1 {a NATURAL join may not have an ON or USING clause}} 321do_test join-3.3 { 322 catchsql { 323 SELECT * FROM t1 JOIN t2 ON t1.a=t2.b USING(b); 324 } 325} {1 {near "USING": syntax error}} 326do_test join-3.4.1 { 327 catchsql { 328 SELECT * FROM t1 JOIN t2 USING(a); 329 } 330} {1 {cannot join using column a - column not present in both tables}} 331do_test join-3.4.2 { 332 catchsql { 333 SELECT * FROM t1 JOIN t2 USING(d); 334 } 335} {1 {cannot join using column d - column not present in both tables}} 336do_test join-3.5 { 337 catchsql { SELECT * FROM t1 USING(a) } 338} {1 {a JOIN clause is required before USING}} 339do_test join-3.6 { 340 catchsql { 341 SELECT * FROM t1 JOIN t2 ON t3.a=t2.b; 342 } 343} {1 {no such column: t3.a}} 344 345# EVIDENCE-OF: R-47973-48020 you cannot say "INNER OUTER JOIN", because 346# that would be contradictory. 347do_test join-3.7 { 348 catchsql { 349 SELECT * FROM t1 INNER OUTER JOIN t2; 350 } 351} {1 {unknown join type: INNER OUTER}} 352do_test join-3.8 { 353 catchsql { 354 SELECT * FROM t1 INNER OUTER CROSS JOIN t2; 355 } 356} {1 {unknown join type: INNER OUTER CROSS}} 357do_test join-3.9 { 358 catchsql { 359 SELECT * FROM t1 OUTER NATURAL INNER JOIN t2; 360 } 361} {1 {unknown join type: OUTER NATURAL INNER}} 362do_test join-3.10 { 363 catchsql { 364 SELECT * FROM t1 LEFT BOGUS JOIN t2; 365 } 366} {1 {unknown join type: LEFT BOGUS}} 367do_test join-3.11 { 368 catchsql { 369 SELECT * FROM t1 INNER BOGUS CROSS JOIN t2; 370 } 371} {1 {unknown join type: INNER BOGUS CROSS}} 372do_test join-3.12 { 373 catchsql { 374 SELECT * FROM t1 NATURAL AWK SED JOIN t2; 375 } 376} {1 {unknown join type: NATURAL AWK SED}} 377 378do_test join-4.1 { 379 execsql { 380 BEGIN; 381 CREATE TABLE t5(a INTEGER PRIMARY KEY); 382 CREATE TABLE t6(a INTEGER); 383 INSERT INTO t6 VALUES(NULL); 384 INSERT INTO t6 VALUES(NULL); 385 INSERT INTO t6 SELECT * FROM t6; 386 INSERT INTO t6 SELECT * FROM t6; 387 INSERT INTO t6 SELECT * FROM t6; 388 INSERT INTO t6 SELECT * FROM t6; 389 INSERT INTO t6 SELECT * FROM t6; 390 INSERT INTO t6 SELECT * FROM t6; 391 COMMIT; 392 } 393 execsql { 394 SELECT * FROM t6 NATURAL JOIN t5; 395 } 396} {} 397do_test join-4.2 { 398 execsql { 399 SELECT * FROM t6, t5 WHERE t6.a<t5.a; 400 } 401} {} 402do_test join-4.3 { 403 execsql { 404 SELECT * FROM t6, t5 WHERE t6.a>t5.a; 405 } 406} {} 407do_test join-4.4 { 408 execsql { 409 UPDATE t6 SET a='xyz'; 410 SELECT * FROM t6 NATURAL JOIN t5; 411 } 412} {} 413do_test join-4.6 { 414 execsql { 415 SELECT * FROM t6, t5 WHERE t6.a<t5.a; 416 } 417} {} 418do_test join-4.7 { 419 execsql { 420 SELECT * FROM t6, t5 WHERE t6.a>t5.a; 421 } 422} {} 423do_test join-4.8 { 424 execsql { 425 UPDATE t6 SET a=1; 426 SELECT * FROM t6 NATURAL JOIN t5; 427 } 428} {} 429do_test join-4.9 { 430 execsql { 431 SELECT * FROM t6, t5 WHERE t6.a<t5.a; 432 } 433} {} 434do_test join-4.10 { 435 execsql { 436 SELECT * FROM t6, t5 WHERE t6.a>t5.a; 437 } 438} {} 439 440do_test join-5.1 { 441 execsql { 442 BEGIN; 443 create table centros (id integer primary key, centro); 444 INSERT INTO centros VALUES(1,'xxx'); 445 create table usuarios (id integer primary key, nombre, apellidos, 446 idcentro integer); 447 INSERT INTO usuarios VALUES(1,'a','aa',1); 448 INSERT INTO usuarios VALUES(2,'b','bb',1); 449 INSERT INTO usuarios VALUES(3,'c','cc',NULL); 450 create index idcentro on usuarios (idcentro); 451 END; 452 select usuarios.id, usuarios.nombre, centros.centro from 453 usuarios left outer join centros on usuarios.idcentro = centros.id; 454 } 455} {1 a xxx 2 b xxx 3 c {}} 456 457# A test for ticket #247. 458# 459do_test join-7.1 { 460 sqlite3_db_config db SQLITE_DBCONFIG_DQS_DML 1 461 execsql { 462 CREATE TABLE t7 (x, y); 463 INSERT INTO t7 VALUES ("pa1", 1); 464 INSERT INTO t7 VALUES ("pa2", NULL); 465 INSERT INTO t7 VALUES ("pa3", NULL); 466 INSERT INTO t7 VALUES ("pa4", 2); 467 INSERT INTO t7 VALUES ("pa30", 131); 468 INSERT INTO t7 VALUES ("pa31", 130); 469 INSERT INTO t7 VALUES ("pa28", NULL); 470 471 CREATE TABLE t8 (a integer primary key, b); 472 INSERT INTO t8 VALUES (1, "pa1"); 473 INSERT INTO t8 VALUES (2, "pa4"); 474 INSERT INTO t8 VALUES (3, NULL); 475 INSERT INTO t8 VALUES (4, NULL); 476 INSERT INTO t8 VALUES (130, "pa31"); 477 INSERT INTO t8 VALUES (131, "pa30"); 478 479 SELECT coalesce(t8.a,999) from t7 LEFT JOIN t8 on y=a; 480 } 481} {1 999 999 2 131 130 999} 482 483# Make sure a left join where the right table is really a view that 484# is itself a join works right. Ticket #306. 485# 486ifcapable view { 487do_test join-8.1 { 488 execsql { 489 BEGIN; 490 CREATE TABLE t9(a INTEGER PRIMARY KEY, b); 491 INSERT INTO t9 VALUES(1,11); 492 INSERT INTO t9 VALUES(2,22); 493 CREATE TABLE t10(x INTEGER PRIMARY KEY, y); 494 INSERT INTO t10 VALUES(1,2); 495 INSERT INTO t10 VALUES(3,3); 496 CREATE TABLE t11(p INTEGER PRIMARY KEY, q); 497 INSERT INTO t11 VALUES(2,111); 498 INSERT INTO t11 VALUES(3,333); 499 CREATE VIEW v10_11 AS SELECT x, q FROM t10, t11 WHERE t10.y=t11.p; 500 COMMIT; 501 SELECT * FROM t9 LEFT JOIN v10_11 ON( a=x ); 502 } 503} {1 11 1 111 2 22 {} {}} 504ifcapable subquery { 505 do_test join-8.2 { 506 execsql { 507 SELECT * FROM t9 LEFT JOIN (SELECT x, q FROM t10, t11 WHERE t10.y=t11.p) 508 ON( a=x); 509 } 510 } {1 11 1 111 2 22 {} {}} 511} 512do_test join-8.3 { 513 execsql { 514 SELECT * FROM v10_11 LEFT JOIN t9 ON( a=x ); 515 } 516} {1 111 1 11 3 333 {} {}} 517ifcapable subquery { 518 # Constant expressions in a subquery that is the right element of a 519 # LEFT JOIN evaluate to NULL for rows where the LEFT JOIN does not 520 # match. Ticket #3300 521 do_test join-8.4 { 522 execsql { 523 SELECT * FROM t9 LEFT JOIN (SELECT 44, p, q FROM t11) AS sub1 ON p=a 524 } 525 } {1 11 {} {} {} 2 22 44 2 111} 526} 527} ;# ifcapable view 528 529# Ticket #350 describes a scenario where LEFT OUTER JOIN does not 530# function correctly if the right table in the join is really 531# subquery. 532# 533# To test the problem, we generate the same LEFT OUTER JOIN in two 534# separate selects but with on using a subquery and the other calling 535# the table directly. Then connect the two SELECTs using an EXCEPT. 536# Both queries should generate the same results so the answer should 537# be an empty set. 538# 539ifcapable compound { 540do_test join-9.1 { 541 execsql { 542 BEGIN; 543 CREATE TABLE t12(a,b); 544 INSERT INTO t12 VALUES(1,11); 545 INSERT INTO t12 VALUES(2,22); 546 CREATE TABLE t13(b,c); 547 INSERT INTO t13 VALUES(22,222); 548 COMMIT; 549 } 550} {} 551 552ifcapable subquery { 553 do_test join-9.1.1 { 554 execsql { 555 SELECT * FROM t12 NATURAL LEFT JOIN t13 556 EXCEPT 557 SELECT * FROM t12 NATURAL LEFT JOIN (SELECT * FROM t13 WHERE b>0); 558 } 559 } {} 560} 561ifcapable view { 562 do_test join-9.2 { 563 execsql { 564 CREATE VIEW v13 AS SELECT * FROM t13 WHERE b>0; 565 SELECT * FROM t12 NATURAL LEFT JOIN t13 566 EXCEPT 567 SELECT * FROM t12 NATURAL LEFT JOIN v13; 568 } 569 } {} 570} ;# ifcapable view 571} ;# ifcapable compound 572 573ifcapable subquery { 574 # Ticket #1697: Left Join WHERE clause terms that contain an 575 # aggregate subquery. 576 # 577 do_test join-10.1 { 578 execsql { 579 CREATE TABLE t21(a,b,c); 580 CREATE TABLE t22(p,q); 581 CREATE INDEX i22 ON t22(q); 582 SELECT a FROM t21 LEFT JOIN t22 ON b=p WHERE q= 583 (SELECT max(m.q) FROM t22 m JOIN t21 n ON n.b=m.p WHERE n.c=1); 584 } 585 } {} 586 587 # Test a LEFT JOIN when the right-hand side of hte join is an empty 588 # sub-query. Seems fine. 589 # 590 do_test join-10.2 { 591 execsql { 592 CREATE TABLE t23(a, b, c); 593 CREATE TABLE t24(a, b, c); 594 INSERT INTO t23 VALUES(1, 2, 3); 595 } 596 execsql { 597 SELECT * FROM t23 LEFT JOIN t24; 598 } 599 } {1 2 3 {} {} {}} 600 do_test join-10.3 { 601 execsql { 602 SELECT * FROM t23 LEFT JOIN (SELECT * FROM t24); 603 } 604 } {1 2 3 {} {} {}} 605 606} ;# ifcapable subquery 607 608#------------------------------------------------------------------------- 609# The following tests are to ensure that bug b73fb0bd64 is fixed. 610# 611do_test join-11.1 { 612 drop_all_tables 613 execsql { 614 CREATE TABLE t1(a INTEGER PRIMARY KEY, b TEXT); 615 CREATE TABLE t2(a INTEGER PRIMARY KEY, b TEXT); 616 INSERT INTO t1 VALUES(1,'abc'); 617 INSERT INTO t1 VALUES(2,'def'); 618 INSERT INTO t2 VALUES(1,'abc'); 619 INSERT INTO t2 VALUES(2,'def'); 620 SELECT * FROM t1 NATURAL JOIN t2; 621 } 622} {1 abc 2 def} 623 624do_test join-11.2 { 625 execsql { SELECT a FROM t1 JOIN t1 USING (a)} 626} {1 2} 627do_test join-11.3 { 628 execsql { SELECT a FROM t1 JOIN t1 AS t2 USING (a)} 629} {1 2} 630do_test join-11.3 { 631 execsql { SELECT * FROM t1 NATURAL JOIN t1 AS t2} 632} {1 abc 2 def} 633do_test join-11.4 { 634 execsql { SELECT * FROM t1 NATURAL JOIN t1 } 635} {1 abc 2 def} 636 637do_test join-11.5 { 638 drop_all_tables 639 execsql { 640 CREATE TABLE t1(a COLLATE nocase, b); 641 CREATE TABLE t2(a, b); 642 INSERT INTO t1 VALUES('ONE', 1); 643 INSERT INTO t1 VALUES('two', 2); 644 INSERT INTO t2 VALUES('one', 1); 645 INSERT INTO t2 VALUES('two', 2); 646 } 647} {} 648do_test join-11.6 { 649 execsql { SELECT * FROM t1 NATURAL JOIN t2 } 650} {ONE 1 two 2} 651do_test join-11.7 { 652 execsql { SELECT * FROM t2 NATURAL JOIN t1 } 653} {two 2} 654 655do_test join-11.8 { 656 drop_all_tables 657 execsql { 658 CREATE TABLE t1(a, b TEXT); 659 CREATE TABLE t2(b INTEGER, a); 660 INSERT INTO t1 VALUES('one', '1.0'); 661 INSERT INTO t1 VALUES('two', '2'); 662 INSERT INTO t2 VALUES(1, 'one'); 663 INSERT INTO t2 VALUES(2, 'two'); 664 } 665} {} 666do_test join-11.9 { 667 execsql { SELECT * FROM t1 NATURAL JOIN t2 } 668} {one 1.0 two 2} 669do_test join-11.10 { 670 execsql { SELECT * FROM t2 NATURAL JOIN t1 } 671} {1 one 2 two} 672 673#------------------------------------------------------------------------- 674# Test that at most 64 tables are allowed in a join. 675# 676do_execsql_test join-12.1 { 677 CREATE TABLE t14(x); 678 INSERT INTO t14 VALUES('abcdefghij'); 679} 680 681proc jointest {tn nTbl res} { 682 set sql "SELECT 1 FROM [string repeat t14, [expr $nTbl-1]] t14;" 683 uplevel [list do_catchsql_test $tn $sql $res] 684} 685 686jointest join-12.2 30 {0 1} 687jointest join-12.3 63 {0 1} 688jointest join-12.4 64 {0 1} 689jointest join-12.5 65 {1 {at most 64 tables in a join}} 690jointest join-12.6 66 {1 {at most 64 tables in a join}} 691jointest join-12.7 127 {1 {at most 64 tables in a join}} 692jointest join-12.8 128 {1 {at most 64 tables in a join}} 693 694# As of 2019-01-17, the number of elements in a SrcList is limited 695# to 200. The following tests still run, but the answer is now 696# an SQLITE_NOMEM error. 697# 698# jointest join-12.9 1000 {1 {at most 64 tables in a join}} 699# 700# If SQLite is built with SQLITE_MEMDEBUG, then the huge number of realloc() 701# calls made by the following test cases are too time consuming to run. 702# Without SQLITE_MEMDEBUG, realloc() is fast enough that these are not 703# a problem. 704# 705# ifcapable pragma&&compileoption_diags { 706# if {[lsearch [db eval {PRAGMA compile_options}] MEMDEBUG]<0} { 707# jointest join-12.10 65534 {1 {at most 64 tables in a join}} 708# jointest join-12.11 65535 {1 {too many references to "t14": max 65535}} 709# jointest join-12.12 65536 {1 {too many references to "t14": max 65535}} 710# jointest join-12.13 65537 {1 {too many references to "t14": max 65535}} 711# } 712# } 713 714 715#------------------------------------------------------------------------- 716# Test a problem with reordering tables following a LEFT JOIN. 717# 718do_execsql_test join-13.0 { 719 CREATE TABLE aa(a); 720 CREATE TABLE bb(b); 721 CREATE TABLE cc(c); 722 723 INSERT INTO aa VALUES(45); 724 INSERT INTO cc VALUES(45); 725 INSERT INTO cc VALUES(45); 726} 727 728do_execsql_test join-13.1 { 729 SELECT * FROM aa LEFT JOIN bb, cc WHERE cc.c=aa.a; 730} {45 {} 45 45 {} 45} 731 732# In the following, the order of [cc] and [bb] must not be exchanged, even 733# though this would be helpful if the query used an inner join. 734do_execsql_test join-13.2 { 735 CREATE INDEX ccc ON cc(c); 736 SELECT * FROM aa LEFT JOIN bb, cc WHERE cc.c=aa.a; 737} {45 {} 45 45 {} 45} 738 739# Verify that that iTable attributes the TK_IF_NULL_ROW operators in the 740# expression tree are correctly updated by the query flattener. This was 741# a bug discovered on 2017-05-22 by Mark Brand. 742# 743do_execsql_test join-14.1 { 744 SELECT * 745 FROM (SELECT 1 a) AS x 746 LEFT JOIN (SELECT 1, * FROM (SELECT * FROM (SELECT 1))); 747} {1 1 1} 748do_execsql_test join-14.2 { 749 SELECT * 750 FROM (SELECT 1 a) AS x 751 LEFT JOIN (SELECT 1, * FROM (SELECT * FROM (SELECT * FROM (SELECT 1)))) AS y 752 JOIN (SELECT * FROM (SELECT 9)) AS z; 753} {1 1 1 9} 754do_execsql_test join-14.3 { 755 SELECT * 756 FROM (SELECT 111) 757 LEFT JOIN (SELECT cc+222, * FROM (SELECT * FROM (SELECT 333 cc))); 758} {111 555 333} 759 760do_execsql_test join-14.4 { 761 DROP TABLE IF EXISTS t1; 762 CREATE TABLE t1(c PRIMARY KEY, a TEXT(10000), b TEXT(10000)); 763 SELECT * FROM (SELECT 111) LEFT JOIN (SELECT c+222 FROM t1) GROUP BY 1; 764} {111 {}} 765do_execsql_test join-14.5 { 766 SELECT * FROM (SELECT 111 AS x UNION ALL SELECT 222) 767 LEFT JOIN (SELECT c+333 AS y FROM t1) ON x=y GROUP BY 1; 768} {111 {} 222 {}} 769do_execsql_test join-14.6 { 770 SELECT * FROM (SELECT 111 AS x UNION ALL SELECT 111) 771 LEFT JOIN (SELECT c+333 AS y FROM t1) ON x=y GROUP BY 1; 772} {111 {}} 773do_execsql_test join-14.7 { 774 SELECT * FROM (SELECT 111 AS x UNION ALL SELECT 111 UNION ALL SELECT 222) 775 LEFT JOIN (SELECT c+333 AS y FROM t1) ON x=y GROUP BY 1; 776} {111 {} 222 {}} 777do_execsql_test join-14.8 { 778 INSERT INTO t1(c) VALUES(-111); 779 SELECT * FROM (SELECT 111 AS x UNION ALL SELECT 111 UNION ALL SELECT 222) 780 LEFT JOIN (SELECT c+333 AS y FROM t1) ON x=y GROUP BY 1; 781} {111 {} 222 222} 782do_execsql_test join-14.9 { 783 DROP TABLE IF EXISTS t1; 784 CREATE TABLE t1(c PRIMARY KEY) WITHOUT ROWID; 785 SELECT * FROM (SELECT 111) LEFT JOIN (SELECT c+222 FROM t1) GROUP BY 1; 786} {111 {}} 787 788# Verify the fix to ticket 789# https://www.sqlite.org/src/tktview/7fde638e94287d2c948cd9389 790# 791db close 792sqlite3 db :memory: 793do_execsql_test join-14.10 { 794 CREATE TABLE t1(a); 795 INSERT INTO t1 VALUES(1),(2),(3); 796 CREATE VIEW v2 AS SELECT a, 1 AS b FROM t1; 797 CREATE TABLE t3(x); 798 INSERT INTO t3 VALUES(2),(4); 799 SELECT *, '|' FROM t3 LEFT JOIN v2 ON a=x WHERE b=1; 800} {2 2 1 |} 801do_execsql_test join-14.11 { 802 SELECT *, '|' FROM t3 LEFT JOIN v2 ON a=x WHERE b+1=x; 803} {2 2 1 |} 804do_execsql_test join-14.12 { 805 SELECT *, '|' FROM t3 LEFT JOIN v2 ON a=x ORDER BY b; 806} {4 {} {} | 2 2 1 |} 807 808# Verify the fix for ticket 809# https://www.sqlite.org/src/info/892fc34f173e99d8 810# 811db close 812sqlite3 db :memory: 813do_execsql_test join-14.20 { 814 CREATE TABLE t1(id INTEGER PRIMARY KEY); 815 CREATE TABLE t2(id INTEGER PRIMARY KEY, c2 INTEGER); 816 CREATE TABLE t3(id INTEGER PRIMARY KEY, c3 INTEGER); 817 INSERT INTO t1(id) VALUES(456); 818 INSERT INTO t3(id) VALUES(1),(2); 819 SELECT t1.id, x2.id, x3.id 820 FROM t1 821 LEFT JOIN (SELECT * FROM t2) AS x2 ON t1.id=x2.c2 822 LEFT JOIN t3 AS x3 ON x2.id=x3.c3; 823} {456 {} {}} 824 825# 2018-03-24. 826# E.Pasma discovered that the LEFT JOIN strength reduction optimization 827# was misbehaving. The problem turned out to be that the 828# sqlite3ExprImpliesNotNull() routine was saying that CASE expressions 829# like 830# 831# CASE WHEN true THEN true ELSE x=0 END 832# 833# could never be true if x is NULL. The following test cases verify 834# that this error has been resolved. 835# 836db close 837sqlite3 db :memory: 838do_execsql_test join-15.100 { 839 CREATE TABLE t1(a INT, b INT); 840 INSERT INTO t1 VALUES(1,2),(3,4); 841 CREATE TABLE t2(x INT, y INT); 842 SELECT *, 'x' 843 FROM t1 LEFT JOIN t2 844 WHERE CASE WHEN FALSE THEN a=x ELSE 1 END; 845} {1 2 {} {} x 3 4 {} {} x} 846do_execsql_test join-15.105 { 847 SELECT *, 'x' 848 FROM t1 LEFT JOIN t2 849 WHERE a IN (1,3,x,y); 850} {1 2 {} {} x 3 4 {} {} x} 851do_execsql_test join-15.106a { 852 SELECT *, 'x' 853 FROM t1 LEFT JOIN t2 854 WHERE NOT ( 'x'='y' AND t2.y=1 ); 855} {1 2 {} {} x 3 4 {} {} x} 856do_execsql_test join-15.106b { 857 SELECT *, 'x' 858 FROM t1 LEFT JOIN t2 859 WHERE ~ ( 'x'='y' AND t2.y=1 ); 860} {1 2 {} {} x 3 4 {} {} x} 861do_execsql_test join-15.107 { 862 SELECT *, 'x' 863 FROM t1 LEFT JOIN t2 864 WHERE t2.y IS NOT 'abc' 865} {1 2 {} {} x 3 4 {} {} x} 866do_execsql_test join-15.110 { 867 DROP TABLE t1; 868 DROP TABLE t2; 869 CREATE TABLE t1(a INTEGER PRIMARY KEY, b INTEGER); 870 INSERT INTO t1(a,b) VALUES(1,0),(11,1),(12,1),(13,1),(121,12); 871 CREATE INDEX t1b ON t1(b); 872 CREATE TABLE t2(x INTEGER PRIMARY KEY); 873 INSERT INTO t2(x) VALUES(0),(1); 874 SELECT a1, a2, a3, a4, a5 875 FROM (SELECT a AS a1 FROM t1 WHERE b=0) 876 JOIN (SELECT x AS x1 FROM t2) 877 LEFT JOIN (SELECT a AS a2, b AS b2 FROM t1) 878 ON x1 IS TRUE AND b2=a1 879 JOIN (SELECT x AS x2 FROM t2) 880 ON x2<=CASE WHEN x1 THEN CASE WHEN a2 THEN 1 ELSE -1 END ELSE 0 END 881 LEFT JOIN (SELECT a AS a3, b AS b3 FROM t1) 882 ON x2 IS TRUE AND b3=a2 883 JOIN (SELECT x AS x3 FROM t2) 884 ON x3<=CASE WHEN x2 THEN CASE WHEN a3 THEN 1 ELSE -1 END ELSE 0 END 885 LEFT JOIN (SELECT a AS a4, b AS b4 FROM t1) 886 ON x3 IS TRUE AND b4=a3 887 JOIN (SELECT x AS x4 FROM t2) 888 ON x4<=CASE WHEN x3 THEN CASE WHEN a4 THEN 1 ELSE -1 END ELSE 0 END 889 LEFT JOIN (SELECT a AS a5, b AS b5 FROM t1) 890 ON x4 IS TRUE AND b5=a4 891 ORDER BY a1, a2, a3, a4, a5; 892} {1 {} {} {} {} 1 11 {} {} {} 1 12 {} {} {} 1 12 121 {} {} 1 13 {} {} {}} 893 894# 2019-02-05 Ticket https://www.sqlite.org/src/tktview/5948e09b8c415bc45da5c 895# Error in join due to the LEFT JOIN strength reduction optimization. 896# 897do_execsql_test join-16.100 { 898 DROP TABLE IF EXISTS t1; 899 DROP TABLE IF EXISTS t2; 900 CREATE TABLE t1(a INT); 901 INSERT INTO t1(a) VALUES(1); 902 CREATE TABLE t2(b INT); 903 SELECT a, b 904 FROM t1 LEFT JOIN t2 ON 0 905 WHERE (b IS NOT NULL)=0; 906} {1 {}} 907 908# 2019-08-17 ticket https://sqlite.org/src/tktview/6710d2f7a13a299728ab 909# Ensure that constants that derive from the right-hand table of a LEFT JOIN 910# are never factored out, since they are not really constant. 911# 912do_execsql_test join-17.100 { 913 DROP TABLE IF EXISTS t1; 914 CREATE TABLE t1(x); 915 INSERT INTO t1(x) VALUES(0),(1); 916 SELECT * FROM t1 LEFT JOIN (SELECT abs(1) AS y FROM t1) ON x WHERE NOT(y='a'); 917} {1 1 1 1} 918do_execsql_test join-17.110 { 919 SELECT * FROM t1 LEFT JOIN (SELECT abs(1)+2 AS y FROM t1) ON x 920 WHERE NOT(y='a'); 921} {1 3 1 3} 922 923#------------------------------------------------------------------------- 924reset_db 925do_execsql_test join-18.1 { 926 CREATE TABLE t0(a); 927 CREATE TABLE t1(b); 928 CREATE VIEW v0 AS SELECT a FROM t1 LEFT JOIN t0; 929 INSERT INTO t1 VALUES (1); 930} {} 931 932do_execsql_test join-18.2 { 933 SELECT * FROM v0 WHERE NOT(v0.a IS FALSE); 934} {{}} 935 936do_execsql_test join-18.3 { 937 SELECT * FROM t1 LEFT JOIN t0 WHERE NOT(a IS FALSE); 938} {1 {}} 939 940do_execsql_test join-18.4 { 941 SELECT NOT(v0.a IS FALSE) FROM v0 942} {1} 943 944#------------------------------------------------------------------------- 945reset_db 946do_execsql_test join-19.0 { 947 CREATE TABLE t1(a); 948 CREATE TABLE t2(b); 949 INSERT INTO t1(a) VALUES(0); 950 CREATE VIEW v0(c) AS SELECT t2.b FROM t1 LEFT JOIN t2; 951} 952 953do_execsql_test join-19.1 { 954 SELECT * FROM v0 WHERE v0.c NOTNULL NOTNULL; 955} {{}} 956 957do_execsql_test join-19.2 { 958 SELECT * FROM t1 LEFT JOIN t2 959} {0 {}} 960 961do_execsql_test join-19.3 { 962 SELECT * FROM t1 LEFT JOIN t2 WHERE (b IS NOT NULL) IS NOT NULL; 963} {0 {}} 964 965do_execsql_test join-19.4 { 966 SELECT (b IS NOT NULL) IS NOT NULL FROM t1 LEFT JOIN t2 967} {1} 968 969do_execsql_test join-19.5 { 970 SELECT * FROM t1 LEFT JOIN t2 WHERE 971 (b IS NOT NULL AND b IS NOT NULL) IS NOT NULL; 972} {0 {}} 973 974# 2019-11-02 ticket 623eff57e76d45f6 975# The optimization of exclusing the WHERE expression of a partial index 976# from the WHERE clause of the query if the index is used does not work 977# of the table of the index is the right-hand table of a LEFT JOIN. 978# 979db close 980sqlite3 db :memory: 981do_execsql_test join-20.1 { 982 CREATE TABLE t1(c1); 983 CREATE TABLE t0(c0); 984 INSERT INTO t0(c0) VALUES (0); 985 SELECT * FROM t0 LEFT JOIN t1 WHERE NULL IN (c1); 986} {} 987do_execsql_test join-20.2 { 988 CREATE INDEX t1x ON t1(0) WHERE NULL IN (c1); 989 SELECT * FROM t0 LEFT JOIN t1 WHERE NULL IN (c1); 990} {} 991 992# 2019-11-30 ticket 7f39060a24b47353 993# Do not allow a WHERE clause term to qualify a partial index on the 994# right table of a LEFT JOIN. 995# 996do_execsql_test join-21.10 { 997 DROP TABLE t0; 998 DROP TABLE t1; 999 CREATE TABLE t0(aa); 1000 CREATE TABLE t1(bb); 1001 INSERT INTO t0(aa) VALUES (1); 1002 INSERT INTO t1(bb) VALUES (1); 1003 SELECT 11, * FROM t1 LEFT JOIN t0 WHERE aa ISNULL; 1004 SELECT 12, * FROM t1 LEFT JOIN t0 WHERE +aa ISNULL; 1005 SELECT 13, * FROM t1 LEFT JOIN t0 ON aa ISNULL; 1006 SELECT 14, * FROM t1 LEFT JOIN t0 ON +aa ISNULL; 1007 CREATE INDEX i0 ON t0(aa) WHERE aa ISNULL; 1008 SELECT 21, * FROM t1 LEFT JOIN t0 WHERE aa ISNULL; 1009 SELECT 22, * FROM t1 LEFT JOIN t0 WHERE +aa ISNULL; 1010 SELECT 23, * FROM t1 LEFT JOIN t0 ON aa ISNULL; 1011 SELECT 24, * FROM t1 LEFT JOIN t0 ON +aa ISNULL; 1012} {13 1 {} 14 1 {} 23 1 {} 24 1 {}} 1013 1014# 2019-12-18 problem with a LEFT JOIN where the RHS is a view. 1015# Detected by Yongheng and Rui. 1016# Follows from the optimization attempt of check-in 41c27bc0ff1d3135 1017# on 2017-04-18 1018# 1019reset_db 1020do_execsql_test join-22.10 { 1021 CREATE TABLE t0(a, b); 1022 CREATE INDEX t0a ON t0(a); 1023 INSERT INTO t0 VALUES(10,10),(10,11),(10,12); 1024 SELECT DISTINCT c FROM t0 LEFT JOIN (SELECT a+1 AS c FROM t0) ORDER BY c ; 1025} {11} 1026 1027# 2019-12-22 ticket 7929c1efb2d67e98 1028# 1029reset_db 1030ifcapable vtab { 1031do_execsql_test join-23.10 { 1032 CREATE TABLE t0(c0); 1033 INSERT INTO t0(c0) VALUES(123); 1034 CREATE VIEW v0(c0) AS SELECT 0 GROUP BY 1; 1035 SELECT t0.c0, v0.c0, vt0.name 1036 FROM v0, t0 LEFT JOIN pragma_table_info('t0') AS vt0 1037 ON vt0.name LIKE 'c0' 1038 WHERE v0.c0 == 0; 1039} {123 0 c0} 1040} 1041 1042#------------------------------------------------------------------------- 1043reset_db 1044do_execsql_test join-24.1 { 1045 CREATE TABLE t1(a PRIMARY KEY, x); 1046 CREATE TABLE t2(b INT); 1047 CREATE INDEX t1aa ON t1(a, a); 1048 1049 INSERT INTO t1 VALUES('abc', 'def'); 1050 INSERT INTO t2 VALUES(1); 1051} 1052 1053do_execsql_test join-24.2 { 1054 SELECT * FROM t2 JOIN t1 WHERE a='abc' AND x='def'; 1055} {1 abc def} 1056do_execsql_test join-24.3 { 1057 SELECT * FROM t2 JOIN t1 WHERE a='abc' AND x='abc'; 1058} {} 1059 1060do_execsql_test join-24.2 { 1061 SELECT * FROM t2 LEFT JOIN t1 ON a=0 WHERE (x='x' OR x IS NULL); 1062} {1 {} {}} 1063 1064# 2020-09-30 ticket 66e4b0e271c47145 1065# The query flattener inserts an "expr AND expr" expression as a substitution 1066# for the column of a view where that view column is part of an ON expression 1067# of a LEFT JOIN. 1068# 1069reset_db 1070do_execsql_test join-25.1 { 1071 CREATE TABLE t0(c0 INT); 1072 CREATE VIEW v0 AS SELECT (NULL AND 5) as c0 FROM t0; 1073 INSERT INTO t0(c0) VALUES (NULL); 1074 SELECT count(*) FROM v0 LEFT JOIN t0 ON v0.c0; 1075} {1} 1076 1077# 2022-04-21 Parser issue detected by dbsqlfuzz 1078# 1079reset_db 1080do_catchsql_test join-26.1 { 1081 CREATE TABLE t4(a,b); 1082 CREATE TABLE t5(a,c); 1083 CREATE TABLE t6(a,d); 1084 SELECT * FROM t5 JOIN ((t4 JOIN (t5 JOIN t6)) t7); 1085} {/1 {.*}/} 1086 1087# 2022-06-09 Invalid subquery flattening caused by 1088# check-in 3f45007d544e5f78 and detected by dbsqlfuzz 1089# 1090reset_db 1091do_execsql_test join-27.1 { 1092 CREATE TABLE t1(a INT,b INT,c INT); INSERT INTO t1 VALUES(NULL,NULL,NULL); 1093 CREATE TABLE t2(d INT,e INT); INSERT INTO t2 VALUES(NULL,NULL); 1094 CREATE INDEX x2 ON t1(c,b); 1095 CREATE TABLE t3(x INT); INSERT INTO t3 VALUES(NULL); 1096} 1097do_execsql_test join-27.2 { 1098 WITH t99(b) AS MATERIALIZED ( 1099 SELECT b FROM t2 LEFT JOIN t1 ON c IN (SELECT x FROM t3) 1100 ) 1101 SELECT 5 FROM t2 JOIN t99 ON b IN (1,2,3); 1102} {} 1103do_execsql_test join-27.3 { 1104 WITH t99(b) AS NOT MATERIALIZED ( 1105 SELECT b FROM t2 LEFT JOIN t1 ON c IN (SELECT x FROM t3) 1106 ) 1107 SELECT 5 FROM t2 JOIN t99 ON b IN (1,2,3); 1108} {} 1109do_execsql_test join-27.4 { 1110 WITH t99(b) AS (SELECT b FROM t2 LEFT JOIN t1 ON c IN (SELECT x FROM t3)) 1111 SELECT 5 FROM t2 JOIN t99 ON b IN (1,2,3); 1112} {} 1113do_execsql_test join-27.5 { 1114 SELECT 5 1115 FROM t2 JOIN ( 1116 SELECT b FROM t2 LEFT JOIN t1 ON c IN (SELECT x FROM t3) 1117 ) AS t99 ON b IN (1,2,3); 1118} {} 1119 1120 1121finish_test 1122