xref: /sqlite-3.40.0/test/select7.test (revision a408adc5) 
1# The author disclaims copyright to this source code.  In place of
2# a legal notice, here is a blessing:
3#
4#    May you do good and not evil.
5#    May you find forgiveness for yourself and forgive others.
6#    May you share freely, never taking more than you give.
7#
8#***********************************************************************
9# This file implements regression tests for SQLite library.  The
10# focus of this file is testing compute SELECT statements and nested
11# views.
12#
13# $Id: select7.test,v 1.9 2007/05/09 22:56:39 drh Exp $
14
15
16set testdir [file dirname $argv0]
17source $testdir/tester.tcl
18
19ifcapable compound {
20
21# A 3-way INTERSECT.  Ticket #875
22ifcapable tempdb {
23  do_test select7-1.1 {
24    execsql {
25      create temp table t1(x);
26      insert into t1 values('amx');
27      insert into t1 values('anx');
28      insert into t1 values('amy');
29      insert into t1 values('bmy');
30      select * from t1 where x like 'a__'
31        intersect select * from t1 where x like '_m_'
32        intersect select * from t1 where x like '__x';
33    }
34  } {amx}
35}
36
37
38# Nested views do not handle * properly.  Ticket #826.
39#
40ifcapable view {
41do_test select7-2.1 {
42  execsql {
43    CREATE TABLE x(id integer primary key, a TEXT NULL);
44    INSERT INTO x (a) VALUES ('first');
45    CREATE TABLE tempx(id integer primary key, a TEXT NULL);
46    INSERT INTO tempx (a) VALUES ('t-first');
47    CREATE VIEW tv1 AS SELECT x.id, tx.id FROM x JOIN tempx tx ON tx.id=x.id;
48    CREATE VIEW tv1b AS SELECT x.id, tx.id FROM x JOIN tempx tx on tx.id=x.id;
49    CREATE VIEW tv2 AS SELECT * FROM tv1 UNION SELECT * FROM tv1b;
50    SELECT * FROM tv2;
51  }
52} {1 1}
53} ;# ifcapable view
54
55} ;# ifcapable compound
56
57# Do not allow GROUP BY without an aggregate. Ticket #1039.
58#
59# Change: force any query with a GROUP BY clause to be processed as
60# an aggregate query, whether it contains aggregates or not.
61#
62ifcapable subquery {
63  # do_test select7-3.1 {
64  #   catchsql {
65  #     SELECT * FROM (SELECT * FROM sqlite_master) GROUP BY name
66  #   }
67  # } {1 {GROUP BY may only be used on aggregate queries}}
68  do_test select7-3.1 {
69    catchsql {
70      SELECT * FROM (SELECT * FROM sqlite_master) GROUP BY name
71    }
72  } [list 0 [execsql {SELECT * FROM sqlite_master ORDER BY name}]]
73}
74
75# Ticket #2018 - Make sure names are resolved correctly on all
76# SELECT statements of a compound subquery.
77#
78ifcapable {subquery && compound} {
79  do_test select7-4.1 {
80    execsql {
81      CREATE TABLE IF NOT EXISTS photo(pk integer primary key, x);
82      CREATE TABLE IF NOT EXISTS tag(pk integer primary key, fk int, name);
83
84      SELECT P.pk from PHOTO P WHERE NOT EXISTS (
85           SELECT T2.pk from TAG T2 WHERE T2.fk = P.pk
86           EXCEPT
87           SELECT T3.pk from TAG T3 WHERE T3.fk = P.pk AND T3.name LIKE '%foo%'
88      );
89    }
90  } {}
91  do_test select7-4.2 {
92    execsql {
93      INSERT INTO photo VALUES(1,1);
94      INSERT INTO photo VALUES(2,2);
95      INSERT INTO photo VALUES(3,3);
96      INSERT INTO tag VALUES(11,1,'one');
97      INSERT INTO tag VALUES(12,1,'two');
98      INSERT INTO tag VALUES(21,1,'one-b');
99      SELECT P.pk from PHOTO P WHERE NOT EXISTS (
100           SELECT T2.pk from TAG T2 WHERE T2.fk = P.pk
101           EXCEPT
102           SELECT T3.pk from TAG T3 WHERE T3.fk = P.pk AND T3.name LIKE '%foo%'
103      );
104    }
105  } {2 3}
106}
107
108# ticket #2347
109#
110ifcapable {subquery && compound} {
111  do_test select7-5.1 {
112    catchsql {
113      CREATE TABLE t2(a,b);
114      SELECT 5 IN (SELECT a,b FROM t2);
115    }
116  } [list 1 \
117     {only a single result allowed for a SELECT that is part of an expression}]
118  do_test select7-5.2 {
119    catchsql {
120      SELECT 5 IN (SELECT * FROM t2);
121    }
122  } [list 1 \
123     {only a single result allowed for a SELECT that is part of an expression}]
124  do_test select7-5.3 {
125    catchsql {
126      SELECT 5 IN (SELECT a,b FROM t2 UNION SELECT b,a FROM t2);
127    }
128  } [list 1 \
129     {only a single result allowed for a SELECT that is part of an expression}]
130  do_test select7-5.4 {
131    catchsql {
132      SELECT 5 IN (SELECT * FROM t2 UNION SELECT * FROM t2);
133    }
134  } [list 1 \
135     {only a single result allowed for a SELECT that is part of an expression}]
136}
137
138finish_test
139