xref: /sqlite-3.40.0/test/whereI.test (revision 8210233c) 
1# 2014-03-31
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# The focus of this file is testing the OR optimization on WITHOUT ROWID
12# tables.
13#
14
15set testdir [file dirname $argv0]
16source $testdir/tester.tcl
17set ::testprefix whereI
18
19do_execsql_test 1.0 {
20  CREATE TABLE t1(a, b, c, PRIMARY KEY(a)) WITHOUT ROWID;
21  INSERT INTO t1 VALUES(1, 'a', 'z');
22  INSERT INTO t1 VALUES(2, 'b', 'y');
23  INSERT INTO t1 VALUES(3, 'c', 'x');
24  INSERT INTO t1 VALUES(4, 'd', 'w');
25  CREATE INDEX i1 ON t1(b);
26  CREATE INDEX i2 ON t1(c);
27}
28
29do_eqp_test 1.1 {
30  SELECT a FROM t1 WHERE b='b' OR c='x'
31} {
32  QUERY PLAN
33  `--MULTI-INDEX OR
34     |--INDEX 1
35     |  `--SEARCH t1 USING INDEX i1 (b=?)
36     `--INDEX 2
37        `--SEARCH t1 USING INDEX i2 (c=?)
38}
39
40do_execsql_test 1.2 {
41  SELECT a FROM t1 WHERE b='b' OR c='x'
42} {2 3}
43
44do_execsql_test 1.3 {
45  SELECT a FROM t1 WHERE b='a' OR c='z'
46} {1}
47
48#----------------------------------------------------------------------
49# Try that again, this time with non integer PRIMARY KEY values.
50#
51do_execsql_test 2.0 {
52  CREATE TABLE t2(a, b, c, PRIMARY KEY(a)) WITHOUT ROWID;
53  INSERT INTO t2 VALUES('i', 'a', 'z');
54  INSERT INTO t2 VALUES('ii', 'b', 'y');
55  INSERT INTO t2 VALUES('iii', 'c', 'x');
56  INSERT INTO t2 VALUES('iv', 'd', 'w');
57  CREATE INDEX i3 ON t2(b);
58  CREATE INDEX i4 ON t2(c);
59}
60
61do_eqp_test 2.1 {
62  SELECT a FROM t2 WHERE b='b' OR c='x'
63} {
64  QUERY PLAN
65  `--MULTI-INDEX OR
66     |--INDEX 1
67     |  `--SEARCH t2 USING INDEX i3 (b=?)
68     `--INDEX 2
69        `--SEARCH t2 USING INDEX i4 (c=?)
70}
71
72do_execsql_test 2.2 {
73  SELECT a FROM t2 WHERE b='b' OR c='x'
74} {ii iii}
75
76do_execsql_test 2.3 {
77  SELECT a FROM t2 WHERE b='a' OR c='z'
78} {i}
79
80#----------------------------------------------------------------------
81# On a table with a multi-column PK.
82#
83do_execsql_test 3.0 {
84  CREATE TABLE t3(a, b, c, d, PRIMARY KEY(c, b)) WITHOUT ROWID;
85
86  INSERT INTO t3 VALUES('f', 1, 1, 'o');
87  INSERT INTO t3 VALUES('o', 2, 1, 't');
88  INSERT INTO t3 VALUES('t', 1, 2, 't');
89  INSERT INTO t3 VALUES('t', 2, 2, 'f');
90
91  CREATE INDEX t3i1 ON t3(d);
92  CREATE INDEX t3i2 ON t3(a);
93
94  SELECT c||'.'||b FROM t3 WHERE a='t' OR d='t'
95} {
96  2.1 2.2 1.2
97}
98
99finish_test
100