SET @global_start_value = @@global.innodb_sync_spin_loops;
SELECT @global_start_value;
@global_start_value
30
'#--------------------FN_DYNVARS_046_01------------------------#'
SET @@global.innodb_sync_spin_loops = 0;
SET @@global.innodb_sync_spin_loops = DEFAULT;
SELECT @@global.innodb_sync_spin_loops;
@@global.innodb_sync_spin_loops
30
'#---------------------FN_DYNVARS_046_02-------------------------#'
SET innodb_sync_spin_loops = 1;
ERROR HY000: Variable 'innodb_sync_spin_loops' is a GLOBAL variable and should be set with SET GLOBAL
SELECT @@innodb_sync_spin_loops;
@@innodb_sync_spin_loops
30
SELECT local.innodb_sync_spin_loops;
ERROR 42S02: Unknown table 'local' in field list
SET global innodb_sync_spin_loops = 0;
SELECT @@global.innodb_sync_spin_loops;
@@global.innodb_sync_spin_loops
0
'#--------------------FN_DYNVARS_046_03------------------------#'
SET @@global.innodb_sync_spin_loops = 0;
SELECT @@global.innodb_sync_spin_loops;
@@global.innodb_sync_spin_loops
0
SET @@global.innodb_sync_spin_loops = 1;
SELECT @@global.innodb_sync_spin_loops;
@@global.innodb_sync_spin_loops
1
SET @@global.innodb_sync_spin_loops = 1000;
SELECT @@global.innodb_sync_spin_loops;
@@global.innodb_sync_spin_loops
1000
'#--------------------FN_DYNVARS_046_04-------------------------#'
SET @@global.innodb_sync_spin_loops = -1;
Warnings:
Warning	1292	Truncated incorrect innodb_sync_spin_loops value: '-1'
SELECT @@global.innodb_sync_spin_loops;
@@global.innodb_sync_spin_loops
0
SET @@global.innodb_sync_spin_loops = "T";
ERROR 42000: Incorrect argument type to variable 'innodb_sync_spin_loops'
SELECT @@global.innodb_sync_spin_loops;
@@global.innodb_sync_spin_loops
0
SET @@global.innodb_sync_spin_loops = "Y";
ERROR 42000: Incorrect argument type to variable 'innodb_sync_spin_loops'
SELECT @@global.innodb_sync_spin_loops;
@@global.innodb_sync_spin_loops
0
SET @@global.innodb_sync_spin_loops = 1001;
SELECT @@global.innodb_sync_spin_loops;
@@global.innodb_sync_spin_loops
1001
'#----------------------FN_DYNVARS_046_05------------------------#'
SELECT @@global.innodb_sync_spin_loops =
VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
WHERE VARIABLE_NAME='innodb_sync_spin_loops';
@@global.innodb_sync_spin_loops =
VARIABLE_VALUE
1
SELECT @@global.innodb_sync_spin_loops;
@@global.innodb_sync_spin_loops
1001
SELECT VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
WHERE VARIABLE_NAME='innodb_sync_spin_loops';
VARIABLE_VALUE
1001
'#---------------------FN_DYNVARS_046_06-------------------------#'
SET @@global.innodb_sync_spin_loops = OFF;
ERROR 42000: Incorrect argument type to variable 'innodb_sync_spin_loops'
SELECT @@global.innodb_sync_spin_loops;
@@global.innodb_sync_spin_loops
1001
SET @@global.innodb_sync_spin_loops = ON;
ERROR 42000: Incorrect argument type to variable 'innodb_sync_spin_loops'
SELECT @@global.innodb_sync_spin_loops;
@@global.innodb_sync_spin_loops
1001
'#---------------------FN_DYNVARS_046_07----------------------#'
SET @@global.innodb_sync_spin_loops = TRUE;
SELECT @@global.innodb_sync_spin_loops;
@@global.innodb_sync_spin_loops
1
SET @@global.innodb_sync_spin_loops = FALSE;
SELECT @@global.innodb_sync_spin_loops;
@@global.innodb_sync_spin_loops
0
SET @@global.innodb_sync_spin_loops = @global_start_value;
SELECT @@global.innodb_sync_spin_loops;
@@global.innodb_sync_spin_loops
30
