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SET @start_global_value = @@global.aria_log_file_size;
select @@global.aria_log_file_size;
@@global.aria_log_file_size
1073741824
select @@session.aria_log_file_size;
ERROR HY000: Variable 'aria_log_file_size' is a GLOBAL variable
show global variables like 'aria_log_file_size';
Variable_name Value
aria_log_file_size 1073741824
show session variables like 'aria_log_file_size';
Variable_name Value
aria_log_file_size 1073741824
select * from information_schema.global_variables where variable_name='aria_log_file_size';
VARIABLE_NAME VARIABLE_VALUE
ARIA_LOG_FILE_SIZE 1073741824
select * from information_schema.session_variables where variable_name='aria_log_file_size';
VARIABLE_NAME VARIABLE_VALUE
ARIA_LOG_FILE_SIZE 1073741824
set global aria_log_file_size=1024*1024*10;
select @@global.aria_log_file_size;
@@global.aria_log_file_size
10485760
set session aria_log_file_size=1;
ERROR HY000: Variable 'aria_log_file_size' is a GLOBAL variable and should be set with SET GLOBAL
set global aria_log_file_size=1.1;
ERROR 42000: Incorrect argument type to variable 'aria_log_file_size'
set global aria_log_file_size=1e1;
ERROR 42000: Incorrect argument type to variable 'aria_log_file_size'
set global aria_log_file_size="foo";
ERROR 42000: Incorrect argument type to variable 'aria_log_file_size'
set global aria_log_file_size=1;
Warnings:
Warning 1292 Truncated incorrect aria_log_file_size value: '1'
select @@global.aria_log_file_size;
@@global.aria_log_file_size
8388608
set global aria_log_file_size=@@global.aria_log_file_size + 8192 - 1;
Warnings:
Warning 1292 Truncated incorrect aria_log_file_size value: '8396799'
select @@global.aria_log_file_size;
@@global.aria_log_file_size
8388608
set global aria_log_file_size=@@global.aria_log_file_size + 8192;
select @@global.aria_log_file_size;
@@global.aria_log_file_size
8396800
set global aria_log_file_size=cast(-1 as unsigned int);
Warnings:
Warning 1105 Cast to unsigned converted negative integer to it's positive complement
Warning 1105 Cast to unsigned converted negative integer to it's positive complement
Warning 1292 Truncated incorrect aria_log_file_size value: '18446744073709551615'
select @@global.aria_log_file_size;
@@global.aria_log_file_size
4294959104
SET @@global.aria_log_file_size = @start_global_value;
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