1SET @start_global_value = @@global.max_write_lock_count;
2SELECT @start_global_value;
3@start_global_value
44294967295
5'#--------------------FN_DYNVARS_088_01-------------------------#'
6SET @@global.max_write_lock_count = 1000;
7SET @@global.max_write_lock_count = DEFAULT;
8SELECT @@global.max_write_lock_count;
9@@global.max_write_lock_count
104294967295
11'#--------------------FN_DYNVARS_088_02-------------------------#'
12SET @@global.max_write_lock_count = DEFAULT;
13SELECT @@global.max_write_lock_count = 4294967295;
14@@global.max_write_lock_count = 4294967295
151
16'#--------------------FN_DYNVARS_088_03-------------------------#'
17SET @@global.max_write_lock_count = 1;
18SELECT @@global.max_write_lock_count;
19@@global.max_write_lock_count
201
21SET @@global.max_write_lock_count = 2;
22SELECT @@global.max_write_lock_count;
23@@global.max_write_lock_count
242
25SET @@global.max_write_lock_count = 65536;
26SELECT @@global.max_write_lock_count;
27@@global.max_write_lock_count
2865536
29SET @@global.max_write_lock_count = 4294967295;
30SELECT @@global.max_write_lock_count;
31@@global.max_write_lock_count
324294967295
33SET @@global.max_write_lock_count = 4294967294;
34SELECT @@global.max_write_lock_count;
35@@global.max_write_lock_count
364294967294
37'#------------------FN_DYNVARS_088_04-----------------------#'
38SET @@global.max_write_lock_count = -1024;
39Warnings:
40Warning	1292	Truncated incorrect max_write_lock_count value: '-1024'
41SELECT @@global.max_write_lock_count;
42@@global.max_write_lock_count
431
44SET @@global.max_write_lock_count = 4294967296;
45Warnings:
46Warning	1292	Truncated incorrect max_write_lock_count value: '4294967296'
47SELECT @@global.max_write_lock_count;
48@@global.max_write_lock_count
494294967295
50SET @@global.max_write_lock_count = -1;
51Warnings:
52Warning	1292	Truncated incorrect max_write_lock_count value: '-1'
53SELECT @@global.max_write_lock_count;
54@@global.max_write_lock_count
551
56SET @@global.max_write_lock_count = 429496729500;
57Warnings:
58Warning	1292	Truncated incorrect max_write_lock_count value: '429496729500'
59SELECT @@global.max_write_lock_count;
60@@global.max_write_lock_count
614294967295
62SET @@global.max_write_lock_count = 65530.34;
63ERROR 42000: Incorrect argument type to variable 'max_write_lock_count'
64SELECT @@global.max_write_lock_count;
65@@global.max_write_lock_count
664294967295
67SET @@global.max_write_lock_count = test;
68ERROR 42000: Incorrect argument type to variable 'max_write_lock_count'
69SELECT @@global.max_write_lock_count;
70@@global.max_write_lock_count
714294967295
72'#------------------FN_DYNVARS_088_05-----------------------#'
73SELECT @@global.max_write_lock_count = VARIABLE_VALUE
74FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
75WHERE VARIABLE_NAME='max_write_lock_count';
76@@global.max_write_lock_count = VARIABLE_VALUE
771
78'#------------------FN_DYNVARS_088_06-----------------------#'
79SET @@global.max_write_lock_count = TRUE;
80SELECT @@global.max_write_lock_count;
81@@global.max_write_lock_count
821
83SET @@global.max_write_lock_count = FALSE;
84Warnings:
85Warning	1292	Truncated incorrect max_write_lock_count value: '0'
86SELECT @@global.max_write_lock_count;
87@@global.max_write_lock_count
881
89'#---------------------FN_DYNVARS_088_07----------------------#'
90SET @@global.max_write_lock_count = 20;
91SELECT @@max_write_lock_count = @@global.max_write_lock_count;
92@@max_write_lock_count = @@global.max_write_lock_count
931
94'#---------------------FN_DYNVARS_088_08----------------------#'
95SET @@global.max_write_lock_count = 102;
96SELECT @@max_write_lock_count;
97@@max_write_lock_count
98102
99SELECT local.max_write_lock_count;
100ERROR 42S02: Unknown table 'local' in field list
101SELECT global.max_write_lock_count;
102ERROR 42S02: Unknown table 'global' in field list
103SELECT max_write_lock_count = @@global.max_write_lock_count;
104ERROR 42S22: Unknown column 'max_write_lock_count' in 'field list'
105SET @@global.max_write_lock_count = @start_global_value;
106SELECT @@global.max_write_lock_count;
107@@global.max_write_lock_count
1084294967295
109