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SET @start_value = @@global.key_buffer_size;
'#--------------------FN_DYNVARS_055_01------------------------#'
SET @@global.key_buffer_size = DEFAULT;
SELECT @@global.key_buffer_size;
@@global.key_buffer_size
134217728
'#---------------------FN_DYNVARS_055_02-------------------------#'
SET @@global.key_buffer_size = @start_value;
SELECT @@global.key_buffer_size = @start_value;
@@global.key_buffer_size = @start_value
1
'#--------------------FN_DYNVARS_055_03------------------------#'
SET @@global.key_buffer_size = 65535;
Warnings:
Warning 1292 Truncated incorrect key_buffer_size value: '65535'
SELECT @@global.key_buffer_size;
@@global.key_buffer_size
61440
'#--------------------FN_DYNVARS_055_04-------------------------#'
SET @@global.key_buffer_size = -1;
ERROR HY000: Cannot drop default keycache
SET @@global.key_buffer_size = 4;
ERROR HY000: Cannot drop default keycache
SET @@global.key_buffer_size = 10000.01;
ERROR 42000: Incorrect argument type to variable 'key_buffer_size'
SELECT @@global.key_buffer_size;
@@global.key_buffer_size
61440
SET @@global.key_buffer_size = ON;
ERROR 42000: Incorrect argument type to variable 'key_buffer_size'
SELECT @@global.key_buffer_size;
@@global.key_buffer_size
61440
SET @@global.key_buffer_size = 'test';
ERROR 42000: Incorrect argument type to variable 'key_buffer_size'
SELECT @@global.key_buffer_size;
@@global.key_buffer_size
61440
'#-------------------FN_DYNVARS_055_05----------------------------#'
SET @@session.key_buffer_size = 0;
ERROR HY000: Variable 'key_buffer_size' is a GLOBAL variable and should be set with SET GLOBAL
'#----------------------FN_DYNVARS_055_06------------------------#'
SELECT @@global.key_buffer_size = VARIABLE_VALUE
FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
WHERE VARIABLE_NAME='key_buffer_size';
@@global.key_buffer_size = VARIABLE_VALUE
1
SELECT @@key_buffer_size = VARIABLE_VALUE
FROM INFORMATION_SCHEMA.SESSION_VARIABLES
WHERE VARIABLE_NAME='key_buffer_size';
@@key_buffer_size = VARIABLE_VALUE
1
'#---------------------FN_DYNVARS_055_07----------------------#'
SET @@global.key_buffer_size = TRUE;
ERROR HY000: Cannot drop default keycache
SET @@global.key_buffer_size = FALSE;
ERROR HY000: Cannot drop default keycache
'#---------------------FN_DYNVARS_055_08----------------------#'
SELECT @@key_buffer_size = @@global.key_buffer_size;
@@key_buffer_size = @@global.key_buffer_size
1
'#---------------------FN_DYNVARS_055_09----------------------#'
SET key_buffer_size = 8 ;
ERROR HY000: Variable 'key_buffer_size' is a GLOBAL variable and should be set with SET GLOBAL
SELECT local.key_buffer_size;
ERROR 42S02: Unknown table 'local' in field list
SELECT global.key_buffer_size;
ERROR 42S02: Unknown table 'global' in field list
SELECT key_buffer_size = @@session.key_buffer_size;
ERROR 42S22: Unknown column 'key_buffer_size' in 'field list'
SET @@global.key_buffer_size = @start_value;
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