1 2#pragma ident "%Z%%M% %I% %E% SMI" 3 4# 2002 May 24 5# 6# The author disclaims copyright to this source code. In place of 7# a legal notice, here is a blessing: 8# 9# May you do good and not evil. 10# May you find forgiveness for yourself and forgive others. 11# May you share freely, never taking more than you give. 12# 13#*********************************************************************** 14# This file implements regression tests for SQLite library. 15# 16# This file implements tests for left outer joins containing WHERE 17# clauses that restrict the scope of the left term of the join. 18# 19# $Id: join4_28.test,v 1.1.2.1 2004/07/22 16:08:39 drh Exp $ 20 21set testdir [file dirname $argv0] 22source $testdir/tester.tcl 23 24do_test join4-1.1 { 25 execsql { 26 create temp table t1(a integer, b varchar(10)); 27 insert into t1 values(1,'one'); 28 insert into t1 values(2,'two'); 29 insert into t1 values(3,'three'); 30 insert into t1 values(4,'four'); 31 32 create temp table t2(x integer, y varchar(10), z varchar(10)); 33 insert into t2 values(2,'niban','ok'); 34 insert into t2 values(4,'yonban','err'); 35 } 36 execsql { 37 select * from t1 left outer join t2 on t1.a=t2.x where t2.z='ok' 38 } 39} {2 two 2 niban ok} 40do_test join4-1.2 { 41 execsql { 42 select * from t1 left outer join t2 on t1.a=t2.x and t2.z='ok' 43 } 44} {1 one {} {} {} 2 two 2 niban ok 3 three {} {} {} 4 four {} {} {}} 45do_test join4-1.3 { 46 execsql { 47 create index i2 on t2(z); 48 } 49 execsql { 50 select * from t1 left outer join t2 on t1.a=t2.x where t2.z='ok' 51 } 52} {2 two 2 niban ok} 53do_test join4-1.4 { 54 execsql { 55 select * from t1 left outer join t2 on t1.a=t2.x and t2.z='ok' 56 } 57} {1 one {} {} {} 2 two 2 niban ok 3 three {} {} {} 4 four {} {} {}} 58do_test join4-1.5 { 59 execsql { 60 select * from t1 left outer join t2 on t1.a=t2.x where t2.z>='ok' 61 } 62} {2 two 2 niban ok} 63do_test join4-1.4 { 64 execsql { 65 select * from t1 left outer join t2 on t1.a=t2.x and t2.z>='ok' 66 } 67} {1 one {} {} {} 2 two 2 niban ok 3 three {} {} {} 4 four {} {} {}} 68do_test join4-1.6 { 69 execsql { 70 select * from t1 left outer join t2 on t1.a=t2.x where t2.z IN ('ok') 71 } 72} {2 two 2 niban ok} 73do_test join4-1.7 { 74 execsql { 75 select * from t1 left outer join t2 on t1.a=t2.x and t2.z IN ('ok') 76 } 77} {1 one {} {} {} 2 two 2 niban ok 3 three {} {} {} 4 four {} {} {}} 78 79 80finish_test 81