1# 2005 September 19 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 left outer joins containing ON 14# clauses that restrict the scope of the left term of the join. 15# 16# $Id: join5.test,v 1.1 2005/09/19 21:05:50 drh Exp $ 17 18set testdir [file dirname $argv0] 19source $testdir/tester.tcl 20 21 22do_test join5-1.1 { 23 execsql { 24 BEGIN; 25 CREATE TABLE t1(a integer primary key, b integer, c integer); 26 CREATE TABLE t2(x integer primary key, y); 27 CREATE TABLE t3(p integer primary key, q); 28 INSERT INTO t3 VALUES(11,'t3-11'); 29 INSERT INTO t3 VALUES(12,'t3-12'); 30 INSERT INTO t2 VALUES(11,'t2-11'); 31 INSERT INTO t2 VALUES(12,'t2-12'); 32 INSERT INTO t1 VALUES(1, 5, 0); 33 INSERT INTO t1 VALUES(2, 11, 2); 34 INSERT INTO t1 VALUES(3, 12, 1); 35 COMMIT; 36 } 37} {} 38do_test join5-1.2 { 39 execsql { 40 select * from t1 left join t2 on t1.b=t2.x and t1.c=1 41 } 42} {1 5 0 {} {} 2 11 2 {} {} 3 12 1 12 t2-12} 43do_test join5-1.3 { 44 execsql { 45 select * from t1 left join t2 on t1.b=t2.x where t1.c=1 46 } 47} {3 12 1 12 t2-12} 48do_test join5-1.4 { 49 execsql { 50 select * from t1 left join t2 on t1.b=t2.x and t1.c=1 51 left join t3 on t1.b=t3.p and t1.c=2 52 } 53} {1 5 0 {} {} {} {} 2 11 2 {} {} 11 t3-11 3 12 1 12 t2-12 {} {}} 54do_test join5-1.5 { 55 execsql { 56 select * from t1 left join t2 on t1.b=t2.x and t1.c=1 57 left join t3 on t1.b=t3.p where t1.c=2 58 } 59} {2 11 2 {} {} 11 t3-11} 60 61 62finish_test 63