~drizzle-trunk/drizzle/development

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
select database();
database()
test
select charset(database());
charset(database())
utf8
select database() = "test";
database() = "test"
1
select database() = _utf8"test";
database() = _utf8"test"
1
select database() = _latin1"test";
database() = _latin1"test"
1
select user() like "%@%";
user() like "%@%"
1
select user() like _utf8"%@%";
user() like _utf8"%@%"
1
select user() like _latin1"%@%";
user() like _latin1"%@%"
1
select charset(user());
charset(user())
utf8
select version()>="3.23.29";
version()>="3.23.29"
1
select version()>=_utf8"3.23.29";
version()>=_utf8"3.23.29"
1
select version()>=_latin1"3.23.29";
version()>=_latin1"3.23.29"
1
select charset(version());
charset(version())
utf8
explain extended select database(), user();
id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	NULL	No tables used
Warnings:
Note	1003	select database() AS "database()",user() AS "user()"
create table t1 (version char(60)) select database(), user(), version() as 'version';
show create table t1;
Table	Create Table
t1	CREATE TABLE "t1" (
  "database()" varchar(34) CHARACTER SET utf8,
  "user()" varchar(77) CHARACTER SET utf8 NOT NULL,
  "version" char(60)
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
select charset(charset(_utf8'a')), charset(collation(_utf8'a'));
charset(charset(_utf8'a'))	charset(collation(_utf8'a'))
utf8	utf8
select collation(charset(_utf8'a')), collation(collation(_utf8'a'));
collation(charset(_utf8'a'))	collation(collation(_utf8'a'))
utf8_general_ci	utf8_general_ci
create table t1 select charset(_utf8'a'), collation(_utf8'a');
show create table t1;
Table	Create Table
t1	CREATE TABLE "t1" (
  "charset(_utf8'a')" varchar(64) CHARACTER SET utf8 NOT NULL,
  "collation(_utf8'a')" varchar(64) CHARACTER SET utf8 NOT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1
drop table t1;
select TRUE,FALSE,NULL;
TRUE	FALSE	NULL
1	0	NULL
create table t1 (c1 char(5)) character set=latin1;
insert into t1 values('row 1');
insert into t1 values('row 2');
insert into t1 values('row 3');
select concat(user(), '--', c1) from t1;
concat(user(), '--', c1)
root@--row 1
root@--row 2
root@--row 3
select concat(database(), '--', c1) from t1;
concat(database(), '--', c1)
test--row 1
test--row 2
test--row 3
drop table t1;
create table t1 (a char(10)) character set latin1;
select * from t1 where a=version();
a
select * from t1 where a=database();
a
select * from t1 where a=user();
a
insert into t1 values ('a');
select left(concat(a,version()),1) from t1;
left(concat(a,version()),1)
a
drop table t1;