SET @global_start_value = @@global.innodb_max_purge_lag;
SELECT @global_start_value;
@global_start_value
0
'#--------------------FN_DYNVARS_046_01------------------------#'
SET @@global.innodb_max_purge_lag = 0;
SET @@global.innodb_max_purge_lag = DEFAULT;
SELECT @@global.innodb_max_purge_lag;
@@global.innodb_max_purge_lag
0
'#---------------------FN_DYNVARS_046_02-------------------------#'
SET innodb_max_purge_lag = 1;
ERROR HY000: Variable 'innodb_max_purge_lag' is a GLOBAL variable and should be set with SET GLOBAL
SELECT @@innodb_max_purge_lag;
@@innodb_max_purge_lag
0
SELECT local.innodb_max_purge_lag;
ERROR 42S02: Unknown table 'local' in field list
SET global innodb_max_purge_lag = 0;
SELECT @@global.innodb_max_purge_lag;
@@global.innodb_max_purge_lag
0
'#--------------------FN_DYNVARS_046_03------------------------#'
SET @@global.innodb_max_purge_lag = 0;
SELECT @@global.innodb_max_purge_lag;
@@global.innodb_max_purge_lag
0
SET @@global.innodb_max_purge_lag = 1;
SELECT @@global.innodb_max_purge_lag;
@@global.innodb_max_purge_lag
1
SET @@global.innodb_max_purge_lag = 4294967295;
SELECT @@global.innodb_max_purge_lag;
@@global.innodb_max_purge_lag
4294967295
'#--------------------FN_DYNVARS_046_04-------------------------#'
SET @@global.innodb_max_purge_lag = -1;
Warnings:
Warning	1292	Truncated incorrect innodb_max_purge_lag value: '-1'
SELECT @@global.innodb_max_purge_lag;
@@global.innodb_max_purge_lag
0
SET @@global.innodb_max_purge_lag = "T";
ERROR 42000: Incorrect argument type to variable 'innodb_max_purge_lag'
SELECT @@global.innodb_max_purge_lag;
@@global.innodb_max_purge_lag
0
SET @@global.innodb_max_purge_lag = "Y";
ERROR 42000: Incorrect argument type to variable 'innodb_max_purge_lag'
SELECT @@global.innodb_max_purge_lag;
@@global.innodb_max_purge_lag
0
SET @@global.innodb_max_purge_lag = 1001;
SELECT @@global.innodb_max_purge_lag;
@@global.innodb_max_purge_lag
1001
'#----------------------FN_DYNVARS_046_05------------------------#'
SELECT @@global.innodb_max_purge_lag =
VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
WHERE VARIABLE_NAME='innodb_max_purge_lag';
@@global.innodb_max_purge_lag =
VARIABLE_VALUE
1
SELECT @@global.innodb_max_purge_lag;
@@global.innodb_max_purge_lag
1001
SELECT VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
WHERE VARIABLE_NAME='innodb_max_purge_lag';
VARIABLE_VALUE
1001
'#---------------------FN_DYNVARS_046_06-------------------------#'
SET @@global.innodb_max_purge_lag = OFF;
ERROR 42000: Incorrect argument type to variable 'innodb_max_purge_lag'
SELECT @@global.innodb_max_purge_lag;
@@global.innodb_max_purge_lag
1001
SET @@global.innodb_max_purge_lag = ON;
ERROR 42000: Incorrect argument type to variable 'innodb_max_purge_lag'
SELECT @@global.innodb_max_purge_lag;
@@global.innodb_max_purge_lag
1001
'#---------------------FN_DYNVARS_046_07----------------------#'
SET @@global.innodb_max_purge_lag = TRUE;
SELECT @@global.innodb_max_purge_lag;
@@global.innodb_max_purge_lag
1
SET @@global.innodb_max_purge_lag = FALSE;
SELECT @@global.innodb_max_purge_lag;
@@global.innodb_max_purge_lag
0
SET @@global.innodb_max_purge_lag = @global_start_value;
SELECT @@global.innodb_max_purge_lag;
@@global.innodb_max_purge_lag
0
