# 2002 May 24 # # The author disclaims copyright to this source code. In place of # a legal notice, here is a blessing: # # May you do good and not evil. # May you find forgiveness for yourself and forgive others. # May you share freely, never taking more than you give. # #*********************************************************************** # This file implements regression tests for SQLite library. # # This file implements tests for joins, including outer joins. # # $Id: join.test,v 1.24 2008/07/09 14:47:21 danielk1977 Exp $ set testdir [file dirname $argv0] source $testdir/tester.tcl do_test join-1.1 { execsql { CREATE TABLE t1(a,b,c); INSERT INTO t1 VALUES(1,2,3); INSERT INTO t1 VALUES(2,3,4); INSERT INTO t1 VALUES(3,4,5); SELECT * FROM t1; } } {1 2 3 2 3 4 3 4 5} do_test join-1.2 { execsql { CREATE TABLE t2(b,c,d); INSERT INTO t2 VALUES(1,2,3); INSERT INTO t2 VALUES(2,3,4); INSERT INTO t2 VALUES(3,4,5); SELECT * FROM t2; } } {1 2 3 2 3 4 3 4 5} do_test join-1.3 { execsql2 { SELECT * FROM t1 NATURAL JOIN t2; } } {a 1 b 2 c 3 d 4 a 2 b 3 c 4 d 5} do_test join-1.3.1 { execsql2 { SELECT * FROM t2 NATURAL JOIN t1; } } {b 2 c 3 d 4 a 1 b 3 c 4 d 5 a 2} do_test join-1.3.2 { execsql2 { SELECT * FROM t2 AS x NATURAL JOIN t1; } } {b 2 c 3 d 4 a 1 b 3 c 4 d 5 a 2} do_test join-1.3.3 { execsql2 { SELECT * FROM t2 NATURAL JOIN t1 AS y; } } {b 2 c 3 d 4 a 1 b 3 c 4 d 5 a 2} do_test join-1.3.4 { execsql { SELECT b FROM t1 NATURAL JOIN t2; } } {2 3} do_test join-1.4.1 { execsql2 { SELECT * FROM t1 INNER JOIN t2 USING(b,c); } } {a 1 b 2 c 3 d 4 a 2 b 3 c 4 d 5} do_test join-1.4.2 { execsql2 { SELECT * FROM t1 AS x INNER JOIN t2 USING(b,c); } } {a 1 b 2 c 3 d 4 a 2 b 3 c 4 d 5} do_test join-1.4.3 { execsql2 { SELECT * FROM t1 INNER JOIN t2 AS y USING(b,c); } } {a 1 b 2 c 3 d 4 a 2 b 3 c 4 d 5} do_test join-1.4.4 { execsql2 { SELECT * FROM t1 AS x INNER JOIN t2 AS y USING(b,c); } } {a 1 b 2 c 3 d 4 a 2 b 3 c 4 d 5} do_test join-1.4.5 { execsql { SELECT b FROM t1 JOIN t2 USING(b); } } {2 3} do_test join-1.5 { execsql2 { SELECT * FROM t1 INNER JOIN t2 USING(b); } } {a 1 b 2 c 3 c 3 d 4 a 2 b 3 c 4 c 4 d 5} do_test join-1.6 { execsql2 { SELECT * FROM t1 INNER JOIN t2 USING(c); } } {a 1 b 2 c 3 b 2 d 4 a 2 b 3 c 4 b 3 d 5} do_test join-1.7 { execsql2 { SELECT * FROM t1 INNER JOIN t2 USING(c,b); } } {a 1 b 2 c 3 d 4 a 2 b 3 c 4 d 5} do_test join-1.8 { execsql { SELECT * FROM t1 NATURAL CROSS JOIN t2; } } {1 2 3 4 2 3 4 5} do_test join-1.9 { execsql { SELECT * FROM t1 CROSS JOIN t2 USING(b,c); } } {1 2 3 4 2 3 4 5} do_test join-1.10 { execsql { SELECT * FROM t1 NATURAL INNER JOIN t2; } } {1 2 3 4 2 3 4 5} do_test join-1.11 { execsql { SELECT * FROM t1 INNER JOIN t2 USING(b,c); } } {1 2 3 4 2 3 4 5} do_test join-1.12 { execsql { SELECT * FROM t1 natural inner join t2; } } {1 2 3 4 2 3 4 5} ifcapable subquery { do_test join-1.13 { execsql2 { SELECT * FROM t1 NATURAL JOIN (SELECT b as 'c', c as 'd', d as 'e' FROM t2) as t3 } } {a 1 b 2 c 3 d 4 e 5} do_test join-1.14 { execsql2 { SELECT * FROM (SELECT b as 'c', c as 'd', d as 'e' FROM t2) as 'tx' NATURAL JOIN t1 } } {c 3 d 4 e 5 a 1 b 2} } do_test join-1.15 { execsql { CREATE TABLE t3(c,d,e); INSERT INTO t3 VALUES(2,3,4); INSERT INTO t3 VALUES(3,4,5); INSERT INTO t3 VALUES(4,5,6); SELECT * FROM t3; } } {2 3 4 3 4 5 4 5 6} do_test join-1.16 { execsql { SELECT * FROM t1 natural join t2 natural join t3; } } {1 2 3 4 5 2 3 4 5 6} do_test join-1.17 { execsql2 { SELECT * FROM t1 natural join t2 natural join t3; } } {a 1 b 2 c 3 d 4 e 5 a 2 b 3 c 4 d 5 e 6} do_test join-1.18 { execsql { CREATE TABLE t4(d,e,f); INSERT INTO t4 VALUES(2,3,4); INSERT INTO t4 VALUES(3,4,5); INSERT INTO t4 VALUES(4,5,6); SELECT * FROM t4; } } {2 3 4 3 4 5 4 5 6} do_test join-1.19.1 { execsql { SELECT * FROM t1 natural join t2 natural join t4; } } {1 2 3 4 5 6} do_test join-1.19.2 { execsql2 { SELECT * FROM t1 natural join t2 natural join t4; } } {a 1 b 2 c 3 d 4 e 5 f 6} do_test join-1.20 { execsql { SELECT * FROM t1 natural join t2 natural join t3 WHERE t1.a=1 } } {1 2 3 4 5} do_test join-2.1 { execsql { SELECT * FROM t1 NATURAL LEFT JOIN t2; } } {1 2 3 4 2 3 4 5 3 4 5 {}} do_test join-2.2 { execsql { SELECT * FROM t2 NATURAL LEFT OUTER JOIN t1; } } {1 2 3 {} 2 3 4 1 3 4 5 2} do_test join-2.3 { catchsql { SELECT * FROM t1 NATURAL RIGHT OUTER JOIN t2; } } {1 {RIGHT and FULL OUTER JOINs are not currently supported}} do_test join-2.4 { execsql { SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.d } } {1 2 3 {} {} {} 2 3 4 {} {} {} 3 4 5 1 2 3} do_test join-2.5 { execsql { SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.d WHERE t1.a>1 } } {2 3 4 {} {} {} 3 4 5 1 2 3} do_test join-2.6 { execsql { SELECT * FROM t1 LEFT JOIN t2 ON t1.a=t2.d WHERE t2.b IS NULL OR t2.b>1 } } {1 2 3 {} {} {} 2 3 4 {} {} {}} do_test join-3.1 { catchsql { SELECT * FROM t1 NATURAL JOIN t2 ON t1.a=t2.b; } } {1 {a NATURAL join may not have an ON or USING clause}} do_test join-3.2 { catchsql { SELECT * FROM t1 NATURAL JOIN t2 USING(b); } } {1 {a NATURAL join may not have an ON or USING clause}} do_test join-3.3 { catchsql { SELECT * FROM t1 JOIN t2 ON t1.a=t2.b USING(b); } } {1 {cannot have both ON and USING clauses in the same join}} do_test join-3.4.1 { catchsql { SELECT * FROM t1 JOIN t2 USING(a); } } {1 {cannot join using column a - column not present in both tables}} do_test join-3.4.2 { catchsql { SELECT * FROM t1 JOIN t2 USING(d); } } {1 {cannot join using column d - column not present in both tables}} do_test join-3.5 { catchsql { SELECT * FROM t1 USING(a); } } {0 {1 2 3 2 3 4 3 4 5}} do_test join-3.6 { catchsql { SELECT * FROM t1 JOIN t2 ON t3.a=t2.b; } } {1 {no such column: t3.a}} do_test join-3.7 { catchsql { SELECT * FROM t1 INNER OUTER JOIN t2; } } {1 {unknown or unsupported join type: INNER OUTER}} do_test join-3.8 { catchsql { SELECT * FROM t1 INNER OUTER CROSS JOIN t2; } } {1 {unknown or unsupported join type: INNER OUTER CROSS}} do_test join-3.9 { catchsql { SELECT * FROM t1 OUTER NATURAL INNER JOIN t2; } } {1 {unknown or unsupported join type: OUTER NATURAL INNER}} do_test join-3.10 { catchsql { SELECT * FROM t1 LEFT BOGUS JOIN t2; } } {1 {unknown or unsupported join type: LEFT BOGUS}} do_test join-3.11 { catchsql { SELECT * FROM t1 INNER BOGUS CROSS JOIN t2; } } {1 {unknown or unsupported join type: INNER BOGUS CROSS}} do_test join-3.12 { catchsql { SELECT * FROM t1 NATURAL AWK SED JOIN t2; } } {1 {unknown or unsupported join type: NATURAL AWK SED}} do_test join-4.1 { execsql { BEGIN; CREATE TABLE t5(a INTEGER PRIMARY KEY); CREATE TABLE t6(a INTEGER); INSERT INTO t6 VALUES(NULL); INSERT INTO t6 VALUES(NULL); INSERT INTO t6 SELECT * FROM t6; INSERT INTO t6 SELECT * FROM t6; INSERT INTO t6 SELECT * FROM t6; INSERT INTO t6 SELECT * FROM t6; INSERT INTO t6 SELECT * FROM t6; INSERT INTO t6 SELECT * FROM t6; COMMIT; } execsql { SELECT * FROM t6 NATURAL JOIN t5; } } {} do_test join-4.2 { execsql { SELECT * FROM t6, t5 WHERE t6.at5.a; } } {} do_test join-4.4 { execsql { UPDATE t6 SET a='xyz'; SELECT * FROM t6 NATURAL JOIN t5; } } {} do_test join-4.6 { execsql { SELECT * FROM t6, t5 WHERE t6.at5.a; } } {} do_test join-4.8 { execsql { UPDATE t6 SET a=1; SELECT * FROM t6 NATURAL JOIN t5; } } {} do_test join-4.9 { execsql { SELECT * FROM t6, t5 WHERE t6.at5.a; } } {} do_test join-5.1 { execsql { BEGIN; create table centros (id integer primary key, centro); INSERT INTO centros VALUES(1,'xxx'); create table usuarios (id integer primary key, nombre, apellidos, idcentro integer); INSERT INTO usuarios VALUES(1,'a','aa',1); INSERT INTO usuarios VALUES(2,'b','bb',1); INSERT INTO usuarios VALUES(3,'c','cc',NULL); create index idcentro on usuarios (idcentro); END; select usuarios.id, usuarios.nombre, centros.centro from usuarios left outer join centros on usuarios.idcentro = centros.id; } } {1 a xxx 2 b xxx 3 c {}} # A test for ticket #247. # do_test join-7.1 { execsql { CREATE TABLE t7 (x, y); INSERT INTO t7 VALUES ("pa1", 1); INSERT INTO t7 VALUES ("pa2", NULL); INSERT INTO t7 VALUES ("pa3", NULL); INSERT INTO t7 VALUES ("pa4", 2); INSERT INTO t7 VALUES ("pa30", 131); INSERT INTO t7 VALUES ("pa31", 130); INSERT INTO t7 VALUES ("pa28", NULL); CREATE TABLE t8 (a integer primary key, b); INSERT INTO t8 VALUES (1, "pa1"); INSERT INTO t8 VALUES (2, "pa4"); INSERT INTO t8 VALUES (3, NULL); INSERT INTO t8 VALUES (4, NULL); INSERT INTO t8 VALUES (130, "pa31"); INSERT INTO t8 VALUES (131, "pa30"); SELECT coalesce(t8.a,999) from t7 LEFT JOIN t8 on y=a; } } {1 999 999 2 131 130 999} # Make sure a left join where the right table is really a view that # is itself a join works right. Ticket #306. # ifcapable view { do_test join-8.1 { execsql { BEGIN; CREATE TABLE t9(a INTEGER PRIMARY KEY, b); INSERT INTO t9 VALUES(1,11); INSERT INTO t9 VALUES(2,22); CREATE TABLE t10(x INTEGER PRIMARY KEY, y); INSERT INTO t10 VALUES(1,2); INSERT INTO t10 VALUES(3,3); CREATE TABLE t11(p INTEGER PRIMARY KEY, q); INSERT INTO t11 VALUES(2,111); INSERT INTO t11 VALUES(3,333); CREATE VIEW v10_11 AS SELECT x, q FROM t10, t11 WHERE t10.y=t11.p; COMMIT; SELECT * FROM t9 LEFT JOIN v10_11 ON( a=x ); } } {1 11 1 111 2 22 {} {}} ifcapable subquery { do_test join-8.2 { execsql { SELECT * FROM t9 LEFT JOIN (SELECT x, q FROM t10, t11 WHERE t10.y=t11.p) ON( a=x); } } {1 11 1 111 2 22 {} {}} } do_test join-8.3 { execsql { SELECT * FROM v10_11 LEFT JOIN t9 ON( a=x ); } } {1 111 1 11 3 333 {} {}} } ;# ifcapable view # Ticket #350 describes a scenario where LEFT OUTER JOIN does not # function correctly if the right table in the join is really # subquery. # # To test the problem, we generate the same LEFT OUTER JOIN in two # separate selects but with on using a subquery and the other calling # the table directly. Then connect the two SELECTs using an EXCEPT. # Both queries should generate the same results so the answer should # be an empty set. # ifcapable compound { do_test join-9.1 { execsql { BEGIN; CREATE TABLE t12(a,b); INSERT INTO t12 VALUES(1,11); INSERT INTO t12 VALUES(2,22); CREATE TABLE t13(b,c); INSERT INTO t13 VALUES(22,222); COMMIT; } } {} ifcapable subquery { do_test join-9.1.1 { execsql { SELECT * FROM t12 NATURAL LEFT JOIN t13 EXCEPT SELECT * FROM t12 NATURAL LEFT JOIN (SELECT * FROM t13 WHERE b>0); } } {} } ifcapable view { do_test join-9.2 { execsql { CREATE VIEW v13 AS SELECT * FROM t13 WHERE b>0; SELECT * FROM t12 NATURAL LEFT JOIN t13 EXCEPT SELECT * FROM t12 NATURAL LEFT JOIN v13; } } {} } ;# ifcapable view } ;# ifcapable compound ifcapable subquery { # Ticket #1697: Left Join WHERE clause terms that contain an # aggregate subquery. # do_test join-10.1 { execsql { CREATE TABLE t21(a,b,c); CREATE TABLE t22(p,q); CREATE INDEX i22 ON t22(q); SELECT a FROM t21 LEFT JOIN t22 ON b=p WHERE q= (SELECT max(m.q) FROM t22 m JOIN t21 n ON n.b=m.p WHERE n.c=1); } } {} # Test a LEFT JOIN when the right-hand side of hte join is an empty # sub-query. Seems fine. # do_test join-10.2 { execsql { CREATE TABLE t23(a, b, c); CREATE TABLE t24(a, b, c); INSERT INTO t23 VALUES(1, 2, 3); } execsql { SELECT * FROM t23 LEFT JOIN t24; } } {1 2 3 {} {} {}} do_test join-10.3 { execsql { SELECT * FROM t23 LEFT JOIN (SELECT * FROM t24); } } {1 2 3 {} {} {}} } ;# ifcapable subquery finish_test