blob: ec211b693df6dc4ecc67d32ec722bff48aabbd9f (
plain)
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
|
SET @start_global_value = @@global.innodb_stats_persistent_sample_pages;
SELECT @start_global_value;
@start_global_value
20
Valid values are zero or above
SELECT @@global.innodb_stats_persistent_sample_pages >=0;
@@global.innodb_stats_persistent_sample_pages >=0
1
SELECT @@global.innodb_stats_persistent_sample_pages;
@@global.innodb_stats_persistent_sample_pages
20
SELECT @@session.innodb_stats_persistent_sample_pages;
ERROR HY000: Variable 'innodb_stats_persistent_sample_pages' is a GLOBAL variable
SHOW global variables LIKE 'innodb_stats_persistent_sample_pages';
Variable_name Value
innodb_stats_persistent_sample_pages 20
SHOW session variables LIKE 'innodb_stats_persistent_sample_pages';
Variable_name Value
innodb_stats_persistent_sample_pages 20
SELECT * FROM information_schema.global_variables
WHERE variable_name='innodb_stats_persistent_sample_pages';
VARIABLE_NAME VARIABLE_VALUE
INNODB_STATS_PERSISTENT_SAMPLE_PAGES 20
SELECT * FROM information_schema.session_variables
WHERE variable_name='innodb_stats_persistent_sample_pages';
VARIABLE_NAME VARIABLE_VALUE
INNODB_STATS_PERSISTENT_SAMPLE_PAGES 20
SET global innodb_stats_persistent_sample_pages=10;
SELECT @@global.innodb_stats_persistent_sample_pages;
@@global.innodb_stats_persistent_sample_pages
10
SELECT * FROM information_schema.global_variables
WHERE variable_name='innodb_stats_persistent_sample_pages';
VARIABLE_NAME VARIABLE_VALUE
INNODB_STATS_PERSISTENT_SAMPLE_PAGES 10
SELECT * FROM information_schema.session_variables
WHERE variable_name='innodb_stats_persistent_sample_pages';
VARIABLE_NAME VARIABLE_VALUE
INNODB_STATS_PERSISTENT_SAMPLE_PAGES 10
SET session innodb_stats_persistent_sample_pages=1;
ERROR HY000: Variable 'innodb_stats_persistent_sample_pages' is a GLOBAL variable and should be set with SET GLOBAL
set global innodb_stats_persistent_sample_pages=DEFAULT;
select @@global.innodb_stats_persistent_sample_pages;
@@global.innodb_stats_persistent_sample_pages
20
SET global innodb_stats_persistent_sample_pages=0;
Warnings:
Warning 1292 Truncated incorrect innodb_stats_persistent_sample_p value: '0'
SELECT @@global.innodb_stats_persistent_sample_pages;
@@global.innodb_stats_persistent_sample_pages
1
SET global innodb_stats_persistent_sample_pages=10;
SELECT @@global.innodb_stats_persistent_sample_pages;
@@global.innodb_stats_persistent_sample_pages
10
SET global innodb_stats_persistent_sample_pages=1.1;
ERROR 42000: Incorrect argument type to variable 'innodb_stats_persistent_sample_pages'
SET global innodb_stats_persistent_sample_pages=1e1;
ERROR 42000: Incorrect argument type to variable 'innodb_stats_persistent_sample_pages'
SET global innodb_stats_persistent_sample_pages="foo";
ERROR 42000: Incorrect argument type to variable 'innodb_stats_persistent_sample_pages'
SET global innodb_stats_persistent_sample_pages=' ';
ERROR 42000: Incorrect argument type to variable 'innodb_stats_persistent_sample_pages'
SELECT @@global.innodb_stats_persistent_sample_pages;
@@global.innodb_stats_persistent_sample_pages
10
SET global innodb_stats_persistent_sample_pages=" ";
ERROR 42000: Incorrect argument type to variable 'innodb_stats_persistent_sample_pages'
SELECT @@global.innodb_stats_persistent_sample_pages;
@@global.innodb_stats_persistent_sample_pages
10
SET global innodb_stats_persistent_sample_pages=-7;
Warnings:
Warning 1292 Truncated incorrect innodb_stats_persistent_sample_p value: '-7'
SELECT @@global.innodb_stats_persistent_sample_pages;
@@global.innodb_stats_persistent_sample_pages
1
SELECT * FROM information_schema.global_variables
WHERE variable_name='innodb_stats_persistent_sample_pages';
VARIABLE_NAME VARIABLE_VALUE
INNODB_STATS_PERSISTENT_SAMPLE_PAGES 1
SET @@global.innodb_stats_persistent_sample_pages = @start_global_value;
SELECT @@global.innodb_stats_persistent_sample_pages;
@@global.innodb_stats_persistent_sample_pages
20
|
