1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
# include/rowid_order.inc
#
# Test for rowid ordering (and comparison) functions.
# do index_merge select for tables with PK of various types.
#
# The variable
# $engine_type -- storage engine to be tested
# has to be set before sourcing this script.
#
# Note: The comments/expections refer to InnoDB.
# They might be not valid for other storage engines.
#
# Last update:
# 2006-08-02 ML test refactored
# old name was t/rowid_order.test
# main code went into include/rowid_order.inc
#
eval SET SESSION DEFAULT_STORAGE_ENGINE = $engine_type;
--disable_warnings
drop table if exists t1, t2, t3,t4;
--enable_warnings
# Signed number as rowid
create table t1 (
pk1 int not NULL,
key1 int(11),
key2 int(11),
PRIMARY KEY (pk1),
KEY key1 (key1),
KEY key2 (key2)
);
insert into t1 values (-5, 1, 1),
(-100, 1, 1),
(3, 1, 1),
(0, 1, 1),
(10, 1, 1);
explain select * from t1 force index(key1, key2) where key1 < 3 or key2 < 3;
select * from t1 force index(key1, key2) where key1 < 3 or key2 < 3;
drop table t1;
# Unsigned numbers as rowids
create table t1 (
pk1 int unsigned not NULL,
key1 int(11),
key2 int(11),
PRIMARY KEY (pk1),
KEY key1 (key1),
KEY key2 (key2)
);
insert into t1 values (0, 1, 1),
(0xFFFFFFFF, 1, 1),
(0xFFFFFFFE, 1, 1),
(1, 1, 1),
(2, 1, 1);
select * from t1 force index(key1, key2) where key1 < 3 or key2 < 3;
drop table t1;
# Case-insensitive char(N)
create table t1 (
pk1 char(4) not NULL,
key1 int(11),
key2 int(11),
PRIMARY KEY (pk1),
KEY key1 (key1),
KEY key2 (key2)
) collate latin2_general_ci;
insert into t1 values ('a1', 1, 1),
('b2', 1, 1),
('A3', 1, 1),
('B4', 1, 1);
select * from t1 force index(key1, key2) where key1 < 3 or key2 < 3;
drop table t1;
# Multi-part PK
create table t1 (
pk1 int not NULL,
pk2 char(4) not NULL collate latin1_german1_ci,
pk3 char(4) not NULL collate latin1_bin,
key1 int(11),
key2 int(11),
PRIMARY KEY (pk1,pk2,pk3),
KEY key1 (key1),
KEY key2 (key2)
);
insert into t1 values
(1, 'u', 'u', 1, 1),
(1, 'u', char(0xEC), 1, 1),
(1, 'u', 'x', 1, 1);
insert ignore into t1 select pk1, char(0xEC), pk3, key1, key2 from t1;
insert ignore into t1 select pk1, 'x', pk3, key1, key2 from t1 where pk2='u';
insert ignore into t1 select 2, pk2, pk3, key1, key2 from t1;
select * from t1;
select * from t1 force index(key1, key2) where key1 < 3 or key2 < 3;
# Hidden PK
alter table t1 drop primary key;
select * from t1;
select * from t1 force index(key1, key2) where key1 < 3 or key2 < 3;
drop table t1;
# Variable-length PK
# this is also test for Bug#2688
create table t1 (
pk1 varchar(8) NOT NULL default '',
pk2 varchar(4) NOT NULL default '',
key1 int(11),
key2 int(11),
primary key(pk1, pk2),
KEY key1 (key1),
KEY key2 (key2)
);
insert into t1 values ('','empt',2,2),
('a','a--a',2,2),
('bb','b--b',2,2),
('ccc','c--c',2,2),
('dddd','d--d',2,2);
select * from t1 force index(key1, key2) where key1 < 3 or key2 < 3;
drop table t1;
|
