SET @global_start_value = @@global.innodb_thread_concurrency;
SELECT @global_start_value;
@global_start_value
8
'#--------------------FN_DYNVARS_046_01------------------------#'
SET @@global.innodb_thread_concurrency = 0;
SET @@global.innodb_thread_concurrency = DEFAULT;
SELECT @@global.innodb_thread_concurrency;
@@global.innodb_thread_concurrency
8
'#---------------------FN_DYNVARS_046_02-------------------------#'
SET innodb_thread_concurrency = 1;
ERROR HY000: Variable 'innodb_thread_concurrency' is a GLOBAL variable and should be set with SET GLOBAL
SELECT @@innodb_thread_concurrency;
@@innodb_thread_concurrency
8
SELECT local.innodb_thread_concurrency;
ERROR 42S02: Unknown table 'local' in field list
SET global innodb_thread_concurrency = 0;
SELECT @@global.innodb_thread_concurrency;
@@global.innodb_thread_concurrency
0
'#--------------------FN_DYNVARS_046_03------------------------#'
SET @@global.innodb_thread_concurrency = 0;
SELECT @@global.innodb_thread_concurrency;
@@global.innodb_thread_concurrency
0
SET @@global.innodb_thread_concurrency = 1;
SELECT @@global.innodb_thread_concurrency;
@@global.innodb_thread_concurrency
1
SET @@global.innodb_thread_concurrency = 1000;
SELECT @@global.innodb_thread_concurrency;
@@global.innodb_thread_concurrency
1000
'#--------------------FN_DYNVARS_046_04-------------------------#'
SET @@global.innodb_thread_concurrency = -1;
Warnings:
Warning	1292	Truncated incorrect thread_concurrency value: '18446744073709551615'
SELECT @@global.innodb_thread_concurrency;
@@global.innodb_thread_concurrency
1000
SET @@global.innodb_thread_concurrency = "T";
ERROR 42000: Incorrect argument type to variable 'innodb_thread_concurrency'
SELECT @@global.innodb_thread_concurrency;
@@global.innodb_thread_concurrency
1000
SET @@global.innodb_thread_concurrency = "Y";
ERROR 42000: Incorrect argument type to variable 'innodb_thread_concurrency'
SELECT @@global.innodb_thread_concurrency;
@@global.innodb_thread_concurrency
1000
SET @@global.innodb_thread_concurrency = 1001;
Warnings:
Warning	1292	Truncated incorrect thread_concurrency value: '1001'
SELECT @@global.innodb_thread_concurrency;
@@global.innodb_thread_concurrency
1000
'#----------------------FN_DYNVARS_046_05------------------------#'
SELECT @@global.innodb_thread_concurrency =
VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
WHERE VARIABLE_NAME='innodb_thread_concurrency';
@@global.innodb_thread_concurrency =
VARIABLE_VALUE
1
SELECT @@global.innodb_thread_concurrency;
@@global.innodb_thread_concurrency
1000
SELECT VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES
WHERE VARIABLE_NAME='innodb_thread_concurrency';
VARIABLE_VALUE
1000
'#---------------------FN_DYNVARS_046_06-------------------------#'
SET @@global.innodb_thread_concurrency = OFF;
ERROR 42000: Incorrect argument type to variable 'innodb_thread_concurrency'
SELECT @@global.innodb_thread_concurrency;
@@global.innodb_thread_concurrency
1000
SET @@global.innodb_thread_concurrency = ON;
ERROR 42000: Incorrect argument type to variable 'innodb_thread_concurrency'
SELECT @@global.innodb_thread_concurrency;
@@global.innodb_thread_concurrency
1000
'#---------------------FN_DYNVARS_046_07----------------------#'
SET @@global.innodb_thread_concurrency = TRUE;
SELECT @@global.innodb_thread_concurrency;
@@global.innodb_thread_concurrency
1
SET @@global.innodb_thread_concurrency = FALSE;
SELECT @@global.innodb_thread_concurrency;
@@global.innodb_thread_concurrency
0
SET @@global.innodb_thread_concurrency = @global_start_value;
SELECT @@global.innodb_thread_concurrency;
@@global.innodb_thread_concurrency
8