# 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 1.21 2006/03/02 04:44:24 drh Exp $set testdir [file dirname $argv0]source $testdir/tester.tcldo_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 {  catchsql {    SELECT * FROM t1 JOIN t2 USING(a);  }} {1 {cannot join using column a - 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-3.7 {  catchsql {    SELECT * FROM t1 LEFT BOGUS JOIN t2;  }} {1 {unknown or unsupported join type: LEFT BOGUS}}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.a<t5.a;  }} {}do_test join-4.3 {  execsql {    SELECT * FROM t6, t5 WHERE t6.a>t5.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.a<t5.a;  }} {}do_test join-4.7 {  execsql {    SELECT * FROM t6, t5 WHERE t6.a>t5.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.a<t5.a;  }} {}do_test join-4.10 {  execsql {    SELECT * FROM t6, t5 WHERE t6.a>t5.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# 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);  }  } {}finish_test