SET @start_value = @@global.query_cache_size;
SELECT @start_value;
@start_value
0
'#--------------------FN_DYNVARS_133_01------------------------#'
SET @@global.query_cache_size = 99;
SET @@global.query_cache_size = DEFAULT;
SELECT @@global.query_cache_size;
@@global.query_cache_size
0
'#---------------------FN_DYNVARS_133_02-------------------------#'
SET @@global.query_cache_size = @start_value;
SELECT @@global.query_cache_size = 0;
@@global.query_cache_size = 0
1
'#--------------------FN_DYNVARS_133_03------------------------#'
SET @@global.query_cache_size = 0;
SELECT @@global.query_cache_size;
@@global.query_cache_size
0
SET @@global.query_cache_size = 1;
SELECT @@global.query_cache_size;
@@global.query_cache_size
0
SET @@global.query_cache_size = 512;
SELECT @@global.query_cache_size;
@@global.query_cache_size
0
SET @@global.query_cache_size = 1024;
Warnings:
Warning	1282	Query cache failed to set size 1024; new query cache size is 0
SELECT @@global.query_cache_size;
@@global.query_cache_size
0
: 'Bug#34880: Warnings are coming on assinging valid values to variable
'Bug# 34877: Invalid Values are coming in variable on assigning valid values';
SET @@global.query_cache_size = 1048576;
SELECT @@global.query_cache_size;
@@global.query_cache_size
1048576
SET @@global.query_cache_size = 1048575;
SELECT @@global.query_cache_size;
@@global.query_cache_size
1047552
'#--------------------FN_DYNVARS_133_04-------------------------#'
SET @@global.query_cache_size = -1;
SELECT @@global.query_cache_size;
@@global.query_cache_size
0
SET @@global.query_cache_size = 4294967296;
SELECT @@global.query_cache_size;
@@global.query_cache_size
4294967296
SET @@global.query_cache_size = 511;
SELECT @@global.query_cache_size;
@@global.query_cache_size
0
SET @@global.query_cache_size = 10000.01;
ERROR 42000: Incorrect argument type to variable 'query_cache_size'
SELECT @@global.query_cache_size;
@@global.query_cache_size
0
SET @@global.query_cache_size = -1024;
SELECT @@global.query_cache_size;
@@global.query_cache_size
0
SET @@global.query_cache_size = 42949672950;
Warnings:
Warning	1282	Query cache failed to set size 42949671936; new query cache size is 0
SELECT @@global.query_cache_size;
@@global.query_cache_size
0
'Bug # 34837: Errors are not coming on assigning invalid values to variable';
SET @@global.query_cache_size = ON;
ERROR 42000: Incorrect argument type to variable 'query_cache_size'
SELECT @@global.query_cache_size;
@@global.query_cache_size
0
SET @@global.query_cache_size = 'test';
ERROR 42000: Incorrect argument type to variable 'query_cache_size'
SELECT @@global.query_cache_size;
@@global.query_cache_size
0
'#-------------------FN_DYNVARS_133_05----------------------------#'
SET @@session.query_cache_size = 0;
ERROR HY000: Variable 'query_cache_size' is a GLOBAL variable and should be set with SET GLOBAL
SELECT @@query_cache_size;
@@query_cache_size
0
'#----------------------FN_DYNVARS_133_06------------------------#'
SELECT @@global.query_cache_size = VARIABLE_VALUE 
FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
WHERE VARIABLE_NAME='query_cache_size';
@@global.query_cache_size = VARIABLE_VALUE
1
SELECT @@query_cache_size = VARIABLE_VALUE 
FROM INFORMATION_SCHEMA.SESSION_VARIABLES
WHERE VARIABLE_NAME='query_cache_size';
@@query_cache_size = VARIABLE_VALUE
1
'#---------------------FN_DYNVARS_133_07----------------------#'
SET @@global.query_cache_size = TRUE;
SELECT @@global.query_cache_size;
@@global.query_cache_size
0
SET @@global.query_cache_size = FALSE;
SELECT @@global.query_cache_size;
@@global.query_cache_size
0
'#---------------------FN_DYNVARS_133_08----------------------#'
SET @@global.query_cache_size = 1;
SELECT @@query_cache_size = @@global.query_cache_size;
@@query_cache_size = @@global.query_cache_size
1
'#---------------------FN_DYNVARS_133_09----------------------#'
SET query_cache_size = 1;
ERROR HY000: Variable 'query_cache_size' is a GLOBAL variable and should be set with SET GLOBAL
SELECT @@query_cache_size;
@@query_cache_size
0
SET local.query_cache_size = 1;
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 'query_cache_size = 1' at line 1
SELECT local.query_cache_size;
ERROR 42S02: Unknown table 'local' in field list
SET global.query_cache_size = 1;
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 'query_cache_size = 1' at line 1
SELECT global.query_cache_size;
ERROR 42S02: Unknown table 'global' in field list
SELECT query_cache_size = @@session.query_cache_size;
ERROR 42S22: Unknown column 'query_cache_size' in 'field list'
SET @@global.query_cache_size = @start_value;
SELECT @@global.query_cache_size;
@@global.query_cache_size
0