SET @start_value = @@global.table_open_cache ;
SELECT IF(@@open_files_limit < 5000, 2000, @start_value);
IF(@@open_files_limit < 5000, 2000, @start_value)
2000
'#--------------------FN_DYNVARS_001_01------------------------#'
SET @@global.table_open_cache  = 99;
SET @@global.table_open_cache  = DeFAULT;
SELECT @@global.table_open_cache;
@@global.table_open_cache
2000
'#---------------------FN_DYNVARS_001_02-------------------------#'
SET @@global.table_open_cache = Default;
SELECT IF(@@open_files_limit < 5000, 2000, @@global.table_open_cache) = 2000;
IF(@@open_files_limit < 5000, 2000, @@global.table_open_cache) = 2000
1
'#--------------------FN_DYNVARS_001_03------------------------#'
SET @@global.table_open_cache  = 8;
SELECT @@global.table_open_cache ;
@@global.table_open_cache
8
SET @@global.table_open_cache  = 1;
SELECT @@global.table_open_cache ;
@@global.table_open_cache
1
SET @@global.table_open_cache  = 1073741824;
Warnings:
Warning	1292	Truncated incorrect table_open_cache value: '1073741824'
SELECT @@global.table_open_cache ;
@@global.table_open_cache
524288
SET @@global.table_open_cache  = 18000;
SELECT @@global.table_open_cache ;
@@global.table_open_cache
18000
SET @@global.table_open_cache  = 65535;
SELECT @@global.table_open_cache ;
@@global.table_open_cache
65535
'#--------------------FN_DYNVARS_001_04-------------------------#'
SET @@global.table_open_cache  = -1;
Warnings:
Warning	1292	Truncated incorrect table_open_cache value: '-1'
SELECT @@global.table_open_cache  ;
@@global.table_open_cache
1
SET @@global.table_open_cache = 100000000000;
Warnings:
Warning	1292	Truncated incorrect table_open_cache value: '100000000000'
SELECT @@global.table_open_cache ;
@@global.table_open_cache
524288
SET @@global.table_open_cache = -1024;
Warnings:
Warning	1292	Truncated incorrect table_open_cache value: '-1024'
SELECT @@global.table_open_cache ;
@@global.table_open_cache
1
SET @@global.table_open_cache = 0;
Warnings:
Warning	1292	Truncated incorrect table_open_cache value: '0'
SELECT @@global.table_open_cache ;
@@global.table_open_cache
1
SET @@global.table_open_cache = 10000.01;
ERROR 42000: Incorrect argument type to variable 'table_open_cache'
SET @@global.table_open_cache = ON;
ERROR 42000: Incorrect argument type to variable 'table_open_cache'
SET @@global.table_open_cache= 'test';
ERROR 42000: Incorrect argument type to variable 'table_open_cache'
SET @@global.table_open_cache = '';
ERROR 42000: Incorrect argument type to variable 'table_open_cache'
'#-------------------FN_DYNVARS_001_05----------------------------#'
SET @@session.table_open_cache = 0;
ERROR HY000: Variable 'table_open_cache' is a GLOBAL variable and should be set with SET GLOBAL
'#----------------------FN_DYNVARS_001_06------------------------#'
SELECT @@global.table_open_cache = VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARIABLE_NAME='table_open_cache ';
@@global.table_open_cache = VARIABLE_VALUE
1
'#---------------------FN_DYNVARS_001_09----------------------#'
SET @@global.table_open_cache = TRUE;
SELECT @@global.table_open_cache ;
@@global.table_open_cache
1
SET @@global.table_open_cache = FALSE;
Warnings:
Warning	1292	Truncated incorrect table_open_cache value: '0'
SELECT @@global.table_open_cache ;
@@global.table_open_cache
1
'#---------------------FN_DYNVARS_001_10----------------------#'
SET @@global.table_open_cache = 10;
SELECT @@table_open_cache = @@global.table_open_cache ;
@@table_open_cache = @@global.table_open_cache
1
'#---------------------FN_DYNVARS_001_11----------------------#'
SET table_open_cache = 8;
ERROR HY000: Variable 'table_open_cache' is a GLOBAL variable and should be set with SET GLOBAL
SET global.table_open_cache = 10;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'table_open_cache = 10' at line 1
SELECT global.table_open_cache ;
ERROR 42S02: Unknown table 'global' in field list
SELECT table_open_cache = @@session.table_open_cache ;
ERROR 42S22: Unknown column 'table_open_cache' in 'field list'
SET @@global.table_open_cache = @start_value;
SELECT IF(@@open_files_limit < 5000, 2000, @start_value);
IF(@@open_files_limit < 5000, 2000, @start_value)
2000
