# 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 1.2 2002/05/25 00:18:21 drh 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; } } {t1.a 1 t1.b 2 t1.c 3 t2.d 4 t1.a 2 t1.b 3 t1.c 4 t2.d 5} do_test join-1.3.1 { execsql2 { SELECT * FROM t2 NATURAL JOIN t1; } } {t2.b 2 t2.c 3 t2.d 4 t1.a 1 t2.b 3 t2.c 4 t2.d 5 t1.a 2} do_test join-1.4 { execsql2 { SELECT * FROM t1 INNER JOIN t2 USING(b,c); } } {t1.a 1 t1.b 2 t1.c 3 t2.d 4 t1.a 2 t1.b 3 t1.c 4 t2.d 5} do_test join-1.5 { execsql2 { SELECT * FROM t1 INNER JOIN t2 USING(b); } } {t1.a 1 t1.b 2 t1.c 3 t2.c 3 t2.d 4 t1.a 2 t1.b 3 t1.c 4 t2.c 4 t2.d 5} do_test join-1.6 { execsql2 { SELECT * FROM t1 INNER JOIN t2 USING(c); } } {t1.a 1 t1.b 2 t1.c 3 t2.b 2 t2.d 4 t1.a 2 t1.b 3 t1.c 4 t2.b 3 t2.d 5} do_test join-1.7 { execsql2 { SELECT * FROM t1 INNER JOIN t2 USING(c,b); } } {t1.a 1 t1.b 2 t1.c 3 t2.d 4 t1.a 2 t1.b 3 t1.c 4 t2.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} 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 } } {t1.a 1 t1.b 2 t1.c 3 t3.d 4 t3.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 } } {tx.c 3 tx.d 4 tx.e 5 t1.a 1 t1.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; } } {t1.a 1 t1.b 2 t1.c 3 t2.d 4 t3.e 5 t1.a 2 t1.b 3 t1.c 4 t2.d 5 t3.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 { execsql { SELECT * FROM t1 natural join t2 natural join t4; } } {1 2 3 4 5 6} do_test join-1.19 { execsql2 { SELECT * FROM t1 natural join t2 natural join t4; } } {t1.a 1 t1.b 2 t1.c 3 t2.d 4 t4.e 5 t4.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-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 BOGUS JOIN t2; } } {1 {unknown or unsupported join type: BOGUS}} finish_test