3 # The author disclaims copyright to this source code. In place of
4 # a legal notice, here is a blessing:
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.
10 #***********************************************************************
11 # This file implements regression tests for SQLite library.
13 # This file implements tests for left outer joins containing ON
14 # clauses that restrict the scope of the left term of the join.
16 # $Id: join5.test,v 1.2 2007/06/08 00:20:48 drh Exp $
18 set testdir [file dirname $argv0]
19 source $testdir/tester.tcl
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);
40 select * from t1 left join t2 on t1.b=t2.x and t1.c=1
42 } {1 5 0 {} {} 2 11 2 {} {} 3 12 1 12 t2-12}
45 select * from t1 left join t2 on t1.b=t2.x where t1.c=1
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
53 } {1 5 0 {} {} {} {} 2 11 2 {} {} 11 t3-11 3 12 1 12 t2-12 {} {}}
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
59 } {2 11 2 {} {} 11 t3-11}
66 INSERT INTO "ab" VALUES(1,2);
67 INSERT INTO "ab" VALUES(3,NULL);
70 INSERT INTO "xy" VALUES(2,3);
71 INSERT INTO "xy" VALUES(NULL,1);
73 execsql {SELECT * FROM xy LEFT JOIN ab ON 0}
74 } {2 3 {} {} {} 1 {} {}}
76 execsql {SELECT * FROM xy LEFT JOIN ab ON 1}
77 } {2 3 1 2 2 3 3 {} {} 1 1 2 {} 1 3 {}}
79 execsql {SELECT * FROM xy LEFT JOIN ab ON NULL}
80 } {2 3 {} {} {} 1 {} {}}
82 execsql {SELECT * FROM xy LEFT JOIN ab ON 0 WHERE 0}
85 execsql {SELECT * FROM xy LEFT JOIN ab ON 1 WHERE 0}
88 execsql {SELECT * FROM xy LEFT JOIN ab ON NULL WHERE 0}
91 execsql {SELECT * FROM xy LEFT JOIN ab ON 0 WHERE 1}
92 } {2 3 {} {} {} 1 {} {}}
94 execsql {SELECT * FROM xy LEFT JOIN ab ON 1 WHERE 1}
95 } {2 3 1 2 2 3 3 {} {} 1 1 2 {} 1 3 {}}
97 execsql {SELECT * FROM xy LEFT JOIN ab ON NULL WHERE 1}
98 } {2 3 {} {} {} 1 {} {}}
100 execsql {SELECT * FROM xy LEFT JOIN ab ON 0 WHERE NULL}
103 execsql {SELECT * FROM xy LEFT JOIN ab ON 1 WHERE NULL}
106 execsql {SELECT * FROM xy LEFT JOIN ab ON NULL WHERE NULL}
109 # Ticket https://www.sqlite.org/src/tktview/6f2222d550f5b0ee7ed37601
110 # Incorrect output on a LEFT JOIN.
112 do_execsql_test join5-3.1 {
113 DROP TABLE IF EXISTS t1;
114 DROP TABLE IF EXISTS t2;
115 DROP TABLE IF EXISTS t3;
117 INSERT INTO x1 VALUES(1);
118 CREATE TABLE x2(b NOT NULL);
119 CREATE TABLE x3(c, d);
120 INSERT INTO x3 VALUES('a', NULL);
121 INSERT INTO x3 VALUES('b', NULL);
122 INSERT INTO x3 VALUES('c', NULL);
123 SELECT * FROM x1 LEFT JOIN x2 LEFT JOIN x3 ON x3.d = x2.b;
125 do_execsql_test join5-3.2 {
126 DROP TABLE IF EXISTS t1;
127 DROP TABLE IF EXISTS t2;
128 DROP TABLE IF EXISTS t3;
129 DROP TABLE IF EXISTS t4;
130 DROP TABLE IF EXISTS t5;
131 CREATE TABLE t1(x text NOT NULL, y text);
132 CREATE TABLE t2(u text NOT NULL, x text NOT NULL);
133 CREATE TABLE t3(w text NOT NULL, v text);
134 CREATE TABLE t4(w text NOT NULL, z text NOT NULL);
135 CREATE TABLE t5(z text NOT NULL, m text);
136 INSERT INTO t1 VALUES('f6d7661f-4efe-4c90-87b5-858e61cd178b',NULL);
137 INSERT INTO t1 VALUES('f6ea82c3-2cad-45ce-ae8f-3ddca4fb2f48',NULL);
138 INSERT INTO t1 VALUES('f6f47499-ecb4-474b-9a02-35be73c235e5',NULL);
139 INSERT INTO t1 VALUES('56f47499-ecb4-474b-9a02-35be73c235e5',NULL);
140 INSERT INTO t3 VALUES('007f2033-cb20-494c-b135-a1e4eb66130c',
141 'f6d7661f-4efe-4c90-87b5-858e61cd178b');
144 INNER JOIN t1 ON t1.x= t3.v AND t1.y IS NULL
145 LEFT JOIN t4 ON t4.w = t3.w
146 LEFT JOIN t5 ON t5.z = t4.z
147 LEFT JOIN t2 ON t2.u = t5.m
148 LEFT JOIN t1 xyz ON xyz.y = t2.x;
149 } {007f2033-cb20-494c-b135-a1e4eb66130c f6d7661f-4efe-4c90-87b5-858e61cd178b f6d7661f-4efe-4c90-87b5-858e61cd178b {} {} {} {} {} {} {} {} {}}
150 do_execsql_test join5-3.3 {
151 DROP TABLE IF EXISTS x1;
152 DROP TABLE IF EXISTS x2;
153 DROP TABLE IF EXISTS x3;
155 INSERT INTO x1 VALUES(1);
156 CREATE TABLE x2(b NOT NULL);
157 CREATE TABLE x3(c, d);
158 INSERT INTO x3 VALUES('a', NULL);
159 INSERT INTO x3 VALUES('b', NULL);
160 INSERT INTO x3 VALUES('c', NULL);
161 SELECT * FROM x1 LEFT JOIN x2 JOIN x3 WHERE x3.d = x2.b;