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
|
# Variable name: innodb_page_cleaners
# Scope: Global
# Access type: Static
# Data type: numeric
SELECT COUNT(@@GLOBAL.innodb_page_cleaners);
--echo 1 Expected
SELECT COUNT(@@innodb_page_cleaners);
--echo 1 Expected
--error ER_INCORRECT_GLOBAL_LOCAL_VAR
SET @@GLOBAL.innodb_page_cleaners=1;
--echo Expected error 'Read-only variable'
--Error ER_BAD_FIELD_ERROR
SELECT innodb_page_cleaners;
--echo Expected error 'Unknown column'
--Error ER_INCORRECT_GLOBAL_LOCAL_VAR
SELECT @@SESSION.innodb_page_cleaners;
--disable_warnings
SELECT @@GLOBAL.innodb_page_cleaners = VARIABLE_VALUE
FROM performance_schema.global_variables
WHERE VARIABLE_NAME='innodb_page_cleaners';
--enable_warnings
--echo 1 Expected
--disable_warnings
SELECT COUNT(VARIABLE_VALUE)
FROM performance_schema.global_variables
WHERE VARIABLE_NAME='innodb_page_cleaners';
--enable_warnings
--echo 1 Expected
SELECT @@innodb_page_cleaners = @@GLOBAL.innodb_page_cleaners;
--echo 1 Expected
--Error ER_INCORRECT_GLOBAL_LOCAL_VAR
SELECT COUNT(@@local.innodb_page_cleaners);
--echo Expected error 'Variable is a GLOBAL variable'
--Error ER_INCORRECT_GLOBAL_LOCAL_VAR
SELECT COUNT(@@SESSION.innodb_page_cleaners);
--echo Expected error 'Variable is a GLOBAL variable'
# Check the default value
--disable_warnings
SELECT VARIABLE_NAME, VARIABLE_VALUE
FROM performance_schema.global_variables
WHERE VARIABLE_NAME = 'innodb_page_cleaners';
--enable_warnings
|
