xref: /sqlite-3.40.0/test/subquery2.test (revision 42d3d37a) 
1# 2011 September 16
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.  The
12# focus of this script is testing correlated subqueries
13#
14#
15
16set testdir [file dirname $argv0]
17source $testdir/tester.tcl
18set ::testprefix subquery2
19
20ifcapable !subquery {
21  finish_test
22  return
23}
24
25do_test subquery2-1.1 {
26  execsql {
27    BEGIN;
28    CREATE TABLE t1(a,b);
29    INSERT INTO t1 VALUES(1,2);
30    INSERT INTO t1 VALUES(3,4);
31    INSERT INTO t1 VALUES(5,6);
32    INSERT INTO t1 VALUES(7,8);
33    CREATE TABLE t2(c,d);
34    INSERT INTO t2 VALUES(1,1);
35    INSERT INTO t2 VALUES(3,9);
36    INSERT INTO t2 VALUES(5,25);
37    INSERT INTO t2 VALUES(7,49);
38    CREATE TABLE t3(e,f);
39    INSERT INTO t3 VALUES(1,1);
40    INSERT INTO t3 VALUES(3,27);
41    INSERT INTO t3 VALUES(5,125);
42    INSERT INTO t3 VALUES(7,343);
43    COMMIT;
44  }
45  execsql {
46    SELECT a FROM t1
47     WHERE b IN (SELECT x+1 FROM (SELECT DISTINCT f/(a*a) AS x FROM t3));
48  }
49} {1 3 5 7}
50do_test subquery2-1.2 {
51  execsql {
52    CREATE INDEX t1b ON t1(b);
53    SELECT a FROM t1
54     WHERE b IN (SELECT x+1 FROM (SELECT DISTINCT f/(a*a) AS x FROM t3));
55  }
56} {1 3 5 7}
57
58do_test subquery2-1.11 {
59  execsql {
60    SELECT a FROM t1
61     WHERE +b=(SELECT x+1 FROM (SELECT DISTINCT f/(a*a) AS x FROM t3));
62  }
63} {1}
64do_test subquery2-1.12 {
65  execsql {
66    SELECT a FROM t1
67     WHERE b=(SELECT x+1 FROM (SELECT DISTINCT f/(a*a) AS x FROM t3));
68  }
69} {1}
70
71do_test subquery2-1.21 {
72  execsql {
73    SELECT a FROM t1
74     WHERE +b=(SELECT x+1 FROM
75                 (SELECT DISTINCT f/d AS x FROM t2 JOIN t3 ON d*a=f))
76  }
77} {1 3 5 7}
78do_test subquery2-1.22 {
79  execsql {
80    SELECT a FROM t1
81     WHERE b=(SELECT x+1 FROM
82                 (SELECT DISTINCT f/d AS x FROM t2 JOIN t3 ON d*a=f))
83  }
84} {1 3 5 7}
85
86#-------------------------------------------------------------------------
87# Test that ticket d6b36be38a has been fixed.
88do_execsql_test 2.1 {
89  CREATE TABLE t4(a, b);
90  CREATE TABLE t5(a, b);
91  INSERT INTO t5 VALUES(3, 5);
92
93  INSERT INTO t4 VALUES(1, 1);
94  INSERT INTO t4 VALUES(2, 3);
95  INSERT INTO t4 VALUES(3, 6);
96  INSERT INTO t4 VALUES(4, 10);
97  INSERT INTO t4 VALUES(5, 15);
98}
99
100do_execsql_test 2.2 {
101  SELECT *
102  FROM (SELECT * FROM t4 ORDER BY a LIMIT -1 OFFSET 1)
103  LIMIT (SELECT a FROM t5)
104} {2 3   3 6   4 10}
105
106
107finish_test
108