xref: /sqlite-3.40.0/test/join2.test (revision c5e56b34) 
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 joins, including outer joins.
14#
15
16set testdir [file dirname $argv0]
17source $testdir/tester.tcl
18set testprefix join2
19
20do_test join2-1.1 {
21  execsql {
22    CREATE TABLE t1(a,b);
23    INSERT INTO t1 VALUES(1,11);
24    INSERT INTO t1 VALUES(2,22);
25    INSERT INTO t1 VALUES(3,33);
26    SELECT * FROM t1;
27  }
28} {1 11 2 22 3 33}
29do_test join2-1.2 {
30  execsql {
31    CREATE TABLE t2(b,c);
32    INSERT INTO t2 VALUES(11,111);
33    INSERT INTO t2 VALUES(33,333);
34    INSERT INTO t2 VALUES(44,444);
35    SELECT * FROM t2;
36  }
37} {11 111 33 333 44 444};
38do_test join2-1.3 {
39  execsql {
40    CREATE TABLE t3(c,d);
41    INSERT INTO t3 VALUES(111,1111);
42    INSERT INTO t3 VALUES(444,4444);
43    INSERT INTO t3 VALUES(555,5555);
44    SELECT * FROM t3;
45  }
46} {111 1111 444 4444 555 5555}
47
48do_test join2-1.4 {
49  execsql {
50    SELECT * FROM
51      t1 NATURAL JOIN t2 NATURAL JOIN t3
52  }
53} {1 11 111 1111}
54do_test join2-1.5 {
55  execsql {
56    SELECT * FROM
57      t1 NATURAL JOIN t2 NATURAL LEFT OUTER JOIN t3
58  }
59} {1 11 111 1111 3 33 333 {}}
60do_test join2-1.6 {
61  execsql {
62    SELECT * FROM
63      t1 NATURAL LEFT OUTER JOIN t2 NATURAL JOIN t3
64  }
65} {1 11 111 1111}
66ifcapable subquery {
67  do_test join2-1.7 {
68    execsql {
69      SELECT * FROM
70        t1 NATURAL LEFT OUTER JOIN (t2 NATURAL JOIN t3)
71    }
72  } {1 11 111 1111 2 22 {} {} 3 33 {} {}}
73}
74
75#-------------------------------------------------------------------------
76# Check that ticket [25e335f802ddc] has been resolved. It should be an
77# error for the ON clause of a LEFT JOIN to refer to a table to its right.
78#
79do_execsql_test 2.0 {
80  CREATE TABLE aa(a);
81  CREATE TABLE bb(b);
82  CREATE TABLE cc(c);
83  INSERT INTO aa VALUES('one');
84  INSERT INTO bb VALUES('one');
85  INSERT INTO cc VALUES('one');
86}
87
88do_catchsql_test 2.1 {
89  SELECT * FROM aa LEFT JOIN cc ON (a=b) JOIN bb ON (b=c);
90} {1 {ON clause references tables to its right}}
91do_catchsql_test 2.2 {
92  SELECT * FROM aa JOIN cc ON (a=b) JOIN bb ON (b=c);
93} {0 {one one one}}
94
95finish_test
96