SET @session_start_value = @@session.sql_big_tables;
SELECT @session_start_value;
@session_start_value
0
'#--------------------FN_DYNVARS_154_01------------------------#'
SET @@session.sql_big_tables = 0;
SET @@session.sql_big_tables = DEFAULT;
SELECT @@session.sql_big_tables;
@@session.sql_big_tables
0
SET @@session.sql_big_tables = 1;
SET @@session.sql_big_tables = DEFAULT;
SELECT @@session.sql_big_tables;
@@session.sql_big_tables
1
'#---------------------FN_DYNVARS_154_02-------------------------#'
SET sql_big_tables = 1;
SELECT @@sql_big_tables;
@@sql_big_tables
1
SELECT session.sql_big_tables;
ERROR 42S02: Unknown table 'session' in field list
SELECT local.sql_big_tables;
ERROR 42S02: Unknown table 'local' in field list
SET session sql_big_tables = 0;
SELECT @@session.sql_big_tables;
@@session.sql_big_tables
0
'#--------------------FN_DYNVARS_154_03------------------------#'
SET @@session.sql_big_tables = 0;
SELECT @@session.sql_big_tables;
@@session.sql_big_tables
0
SET @@session.sql_big_tables = 1;
SELECT @@session.sql_big_tables;
@@session.sql_big_tables
1
'#--------------------FN_DYNVARS_154_04-------------------------#'
SET @@session.sql_big_tables = -1;
ERROR 42000: Variable 'sql_big_tables' can't be set to the value of '-1'
SET @@session.sql_big_tables = 2;
ERROR 42000: Variable 'sql_big_tables' can't be set to the value of '2'
SET @@session.sql_big_tables = "T";
ERROR 42000: Variable 'sql_big_tables' can't be set to the value of 'T'
SET @@session.sql_big_tables = "Y";
ERROR 42000: Variable 'sql_big_tables' can't be set to the value of 'Y'
SET @@session.sql_big_tables = TRÜE;
ERROR 42000: Variable 'sql_big_tables' can't be set to the value of 'TRÃœE'
SET @@session.sql_big_tables = ÕN;
ERROR 42000: Variable 'sql_big_tables' can't be set to the value of 'ÕN'
SET @@session.sql_big_tables = OF;
SELECT @@session.sql_big_tables;
@@session.sql_big_tables
0
'Bug# 34828: OF is taken as OFF and a value of 0 is set.'
SET @@session.sql_big_tables = ÓFF;
ERROR 42000: Variable 'sql_big_tables' can't be set to the value of 'ÓFF'
SET @@session.sql_big_tables = '¹';
ERROR 42000: Variable 'sql_big_tables' can't be set to the value of '¹'
SET @@session.sql_big_tables = NO;
ERROR 42000: Variable 'sql_big_tables' can't be set to the value of 'NO'
'#-------------------FN_DYNVARS_154_05----------------------------#'
SET @@global.sql_big_tables = 0;
ERROR HY000: Variable 'sql_big_tables' is a SESSION variable and can't be used with SET GLOBAL
SELECT @@global.sql_big_tables;
ERROR HY000: Variable 'sql_big_tables' is a SESSION variable
'#----------------------FN_DYNVARS_154_06------------------------#'
SELECT count(VARIABLE_VALUE) 
FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 
WHERE VARIABLE_NAME='sql_big_tables';
count(VARIABLE_VALUE)
1
'#----------------------FN_DYNVARS_154_07------------------------#'
SELECT @@session.sql_big_tables = VARIABLE_VALUE 
FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
WHERE VARIABLE_NAME='sql_big_tables';
@@session.sql_big_tables = VARIABLE_VALUE
1
SELECT @@session.sql_big_tables;
@@session.sql_big_tables
0
SELECT VARIABLE_VALUE 
FROM INFORMATION_SCHEMA.SESSION_VARIABLES 
WHERE VARIABLE_NAME='sql_big_tables';
VARIABLE_VALUE
OFF
'#---------------------FN_DYNVARS_154_08-------------------------#'
SET @@session.sql_big_tables = OFF;
SELECT @@session.sql_big_tables;
@@session.sql_big_tables
0
SET @@session.sql_big_tables = ON;
SELECT @@session.sql_big_tables;
@@session.sql_big_tables
1
'#---------------------FN_DYNVARS_154_09----------------------#'
SET @@session.sql_big_tables = TRUE;
SELECT @@session.sql_big_tables;
@@session.sql_big_tables
1
SET @@session.sql_big_tables = FALSE;
SELECT @@session.sql_big_tables;
@@session.sql_big_tables
0
SET @@session.sql_big_tables = @session_start_value;
SELECT @@session.sql_big_tables;
@@session.sql_big_tables
0