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