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1# 2002 May 24
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 WHERE
14# clauses that restrict the scope of the left term of the join.
15#
16# $Id: join4.test,v 1.4 2005/03/29 03:11:00 danielk1977 Exp $
17
18set testdir [file dirname $argv0]
19source $testdir/tester.tcl
20
21ifcapable tempdb {
22  do_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}
38} else {
39  do_test join4-1.1 {
40    execsql {
41      create table t1(a integer, b varchar(10));
42      insert into t1 values(1,'one');
43      insert into t1 values(2,'two');
44      insert into t1 values(3,'three');
45      insert into t1 values(4,'four');
46
47      create table t2(x integer, y varchar(10), z varchar(10));
48      insert into t2 values(2,'niban','ok');
49      insert into t2 values(4,'yonban','err');
50    }
51    execsql {
52      select * from t1 left outer join t2 on t1.a=t2.x where t2.z='ok'
53    }
54  } {2 two 2 niban ok}
55}
56do_test join4-1.2 {
57  execsql {
58    select * from t1 left outer join t2 on t1.a=t2.x and t2.z='ok'
59  }
60} {1 one {} {} {} 2 two 2 niban ok 3 three {} {} {} 4 four {} {} {}}
61do_test join4-1.3 {
62  execsql {
63    create index i2 on t2(z);
64  }
65  execsql {
66    select * from t1 left outer join t2 on t1.a=t2.x where t2.z='ok'
67  }
68} {2 two 2 niban ok}
69do_test join4-1.4 {
70  execsql {
71    select * from t1 left outer join t2 on t1.a=t2.x and t2.z='ok'
72  }
73} {1 one {} {} {} 2 two 2 niban ok 3 three {} {} {} 4 four {} {} {}}
74do_test join4-1.5 {
75  execsql {
76    select * from t1 left outer join t2 on t1.a=t2.x where t2.z>='ok'
77  }
78} {2 two 2 niban ok}
79do_test join4-1.4 {
80  execsql {
81    select * from t1 left outer join t2 on t1.a=t2.x and t2.z>='ok'
82  }
83} {1 one {} {} {} 2 two 2 niban ok 3 three {} {} {} 4 four {} {} {}}
84ifcapable subquery {
85  do_test join4-1.6 {
86    execsql {
87      select * from t1 left outer join t2 on t1.a=t2.x where t2.z IN ('ok')
88    }
89  } {2 two 2 niban ok}
90  do_test join4-1.7 {
91    execsql {
92      select * from t1 left outer join t2 on t1.a=t2.x and t2.z IN ('ok')
93    }
94  } {1 one {} {} {} 2 two 2 niban ok 3 three {} {} {} 4 four {} {} {}}
95}
96
97
98finish_test
99