SET @start_global_value = @@global.read_rnd_buffer_size;
SELECT @start_global_value;
@start_global_value
262144
SET @start_session_value = @@session.read_rnd_buffer_size;
SELECT @start_session_value;
@start_session_value
262144
'#--------------------FN_DYNVARS_140_01-------------------------#'
SET @@global.read_rnd_buffer_size = 1000;
SET @@global.read_rnd_buffer_size = DEFAULT;
SELECT @@global.read_rnd_buffer_size;
@@global.read_rnd_buffer_size
262144
SET @@session.read_rnd_buffer_size = 2000;
SET @@session.read_rnd_buffer_size = DEFAULT;
SELECT @@session.read_rnd_buffer_size;
@@session.read_rnd_buffer_size
262144
'#--------------------FN_DYNVARS_140_03-------------------------#'
SET @@global.read_rnd_buffer_size = 8201;
SELECT @@global.read_rnd_buffer_size;
@@global.read_rnd_buffer_size
8201
SET @@global.read_rnd_buffer_size = 8200;
SELECT @@global.read_rnd_buffer_size;
@@global.read_rnd_buffer_size
8200
SET @@global.read_rnd_buffer_size = 2147479552;
SELECT @@global.read_rnd_buffer_size;
@@global.read_rnd_buffer_size
2147479552
SET @@global.read_rnd_buffer_size = 2147479551;
SELECT @@global.read_rnd_buffer_size;
@@global.read_rnd_buffer_size
2147479551
'#--------------------FN_DYNVARS_140_04-------------------------#'
SET @@session.read_rnd_buffer_size = 8200;
SELECT @@session.read_rnd_buffer_size;
@@session.read_rnd_buffer_size
8200
SET @@session.read_rnd_buffer_size = 8201;
SELECT @@session.read_rnd_buffer_size;
@@session.read_rnd_buffer_size
8201
SET @@session.read_rnd_buffer_size = 2147479552;
SELECT @@session.read_rnd_buffer_size;
@@session.read_rnd_buffer_size
2147479552
SET @@session.read_rnd_buffer_size = 2147479551;
SELECT @@session.read_rnd_buffer_size;
@@session.read_rnd_buffer_size
2147479551
'#------------------FN_DYNVARS_140_05-----------------------#'
SET @@global.read_rnd_buffer_size = 8199;
SELECT @@global.read_rnd_buffer_size;
@@global.read_rnd_buffer_size
8199
SET @@global.read_rnd_buffer_size = -1024;
Warnings:
Warning	1292	Truncated incorrect read_rnd_buffer_size value: '-1024'
SELECT @@global.read_rnd_buffer_size;
@@global.read_rnd_buffer_size
1
SET @@global.read_rnd_buffer_size = 2147479553;
SELECT @@global.read_rnd_buffer_size;
@@global.read_rnd_buffer_size
2147479553
SET @@global.read_rnd_buffer_size = 65530.34;
ERROR 42000: Incorrect argument type to variable 'read_rnd_buffer_size'
SET @@global.read_rnd_buffer_size = test;
ERROR 42000: Incorrect argument type to variable 'read_rnd_buffer_size'
SET @@session.read_rnd_buffer_size = 8199;
SELECT @@session.read_rnd_buffer_size;
@@session.read_rnd_buffer_size
8199
SET @@session.read_rnd_buffer_size = -2;
Warnings:
Warning	1292	Truncated incorrect read_rnd_buffer_size value: '-2'
SELECT @@session.read_rnd_buffer_size;
@@session.read_rnd_buffer_size
1
SET @@session.read_rnd_buffer_size = 65530.34;
ERROR 42000: Incorrect argument type to variable 'read_rnd_buffer_size'
SET @@session.read_rnd_buffer_size = test;
ERROR 42000: Incorrect argument type to variable 'read_rnd_buffer_size'
'#------------------FN_DYNVARS_140_06-----------------------#'
SELECT @@global.read_rnd_buffer_size = VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARIABLE_NAME='read_rnd_buffer_size';
@@global.read_rnd_buffer_size = VARIABLE_VALUE
1
'#------------------FN_DYNVARS_140_07-----------------------#'
SELECT @@session.read_rnd_buffer_size = 
VARIABLE_VALUE FROM INFORMATION_SCHEMA.SESSION_VARIABLES WHERE VARIABLE_NAME='read_rnd_buffer_size';
@@session.read_rnd_buffer_size = 
VARIABLE_VALUE
1
'#------------------FN_DYNVARS_140_08-----------------------#'
SET @@global.read_rnd_buffer_size = TRUE;
SELECT @@global.read_rnd_buffer_size;
@@global.read_rnd_buffer_size
1
SET @@global.read_rnd_buffer_size = FALSE;
Warnings:
Warning	1292	Truncated incorrect read_rnd_buffer_size value: '0'
SELECT @@global.read_rnd_buffer_size;
@@global.read_rnd_buffer_size
1
'#---------------------FN_DYNVARS_140_09----------------------#'
SET @@global.read_rnd_buffer_size = 9000;
SELECT @@read_rnd_buffer_size = @@global.read_rnd_buffer_size;
@@read_rnd_buffer_size = @@global.read_rnd_buffer_size
0
'#---------------------FN_DYNVARS_140_10----------------------#'
SET @@read_rnd_buffer_size = 9000;
SELECT @@read_rnd_buffer_size = @@local.read_rnd_buffer_size;
@@read_rnd_buffer_size = @@local.read_rnd_buffer_size
1
SELECT @@local.read_rnd_buffer_size = @@session.read_rnd_buffer_size;
@@local.read_rnd_buffer_size = @@session.read_rnd_buffer_size
1
'#---------------------FN_DYNVARS_140_11----------------------#'
SET read_rnd_buffer_size = 9100;
SELECT @@read_rnd_buffer_size;
@@read_rnd_buffer_size
9100
SELECT local.read_rnd_buffer_size;
ERROR 42S02: Unknown table 'local' in field list
SELECT session.read_rnd_buffer_size;
ERROR 42S02: Unknown table 'session' in field list
SELECT read_rnd_buffer_size = @@session.read_rnd_buffer_size;
ERROR 42S22: Unknown column 'read_rnd_buffer_size' in 'field list'
SET @@global.read_rnd_buffer_size = @start_global_value;
SELECT @@global.read_rnd_buffer_size;
@@global.read_rnd_buffer_size
262144
SET @@session.read_rnd_buffer_size = @start_session_value;
SELECT @@session.read_rnd_buffer_size;
@@session.read_rnd_buffer_size
262144
