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# 2002 May 24
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#
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# The author disclaims copyright to this source code. In place of
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# a legal notice, here is a blessing:
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#
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# May you do good and not evil.
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# May you find forgiveness for yourself and forgive others.
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# May you share freely, never taking more than you give.
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#
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#***********************************************************************
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# This file implements regression tests for SQLite library.
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#
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# This file implements tests for left outer joins containing WHERE
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# clauses that restrict the scope of the left term of the join.
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#
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# $Id: join4.test,v 1.4 2005/03/29 03:11:00 danielk1977 Exp $
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set testdir [file dirname $argv0]
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source $testdir/tester.tcl
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ifcapable tempdb {
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do_test join4-1.1 {
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execsql {
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create temp table t1(a integer, b varchar(10));
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insert into t1 values(1,'one');
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insert into t1 values(2,'two');
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insert into t1 values(3,'three');
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insert into t1 values(4,'four');
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create temp table t2(x integer, y varchar(10), z varchar(10));
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insert into t2 values(2,'niban','ok');
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insert into t2 values(4,'yonban','err');
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}
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execsql {
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select * from t1 left outer join t2 on t1.a=t2.x where t2.z='ok'
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}
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} {2 two 2 niban ok}
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} else {
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do_test join4-1.1 {
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execsql {
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create table t1(a integer, b varchar(10));
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insert into t1 values(1,'one');
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insert into t1 values(2,'two');
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insert into t1 values(3,'three');
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insert into t1 values(4,'four');
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create table t2(x integer, y varchar(10), z varchar(10));
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insert into t2 values(2,'niban','ok');
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insert into t2 values(4,'yonban','err');
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}
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execsql {
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select * from t1 left outer join t2 on t1.a=t2.x where t2.z='ok'
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}
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} {2 two 2 niban ok}
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}
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do_test join4-1.2 {
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execsql {
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select * from t1 left outer join t2 on t1.a=t2.x and t2.z='ok'
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}
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} {1 one {} {} {} 2 two 2 niban ok 3 three {} {} {} 4 four {} {} {}}
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do_test join4-1.3 {
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execsql {
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create index i2 on t2(z);
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}
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execsql {
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select * from t1 left outer join t2 on t1.a=t2.x where t2.z='ok'
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}
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} {2 two 2 niban ok}
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do_test join4-1.4 {
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execsql {
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select * from t1 left outer join t2 on t1.a=t2.x and t2.z='ok'
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}
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} {1 one {} {} {} 2 two 2 niban ok 3 three {} {} {} 4 four {} {} {}}
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do_test join4-1.5 {
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execsql {
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select * from t1 left outer join t2 on t1.a=t2.x where t2.z>='ok'
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}
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} {2 two 2 niban ok}
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do_test join4-1.4 {
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execsql {
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select * from t1 left outer join t2 on t1.a=t2.x and t2.z>='ok'
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}
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} {1 one {} {} {} 2 two 2 niban ok 3 three {} {} {} 4 four {} {} {}}
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ifcapable subquery {
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do_test join4-1.6 {
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execsql {
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select * from t1 left outer join t2 on t1.a=t2.x where t2.z IN ('ok')
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}
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} {2 two 2 niban ok}
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do_test join4-1.7 {
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execsql {
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select * from t1 left outer join t2 on t1.a=t2.x and t2.z IN ('ok')
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}
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} {1 one {} {} {} 2 two 2 niban ok 3 three {} {} {} 4 four {} {} {}}
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}
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finish_test
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