1'#---------------------BS_STVARS_026_01----------------------#' 2SELECT COUNT(@@GLOBAL.innodb_doublewrite); 3COUNT(@@GLOBAL.innodb_doublewrite) 41 51 Expected 6'#---------------------BS_STVARS_026_02----------------------#' 7SET @@GLOBAL.innodb_doublewrite=1; 8ERROR HY000: Variable 'innodb_doublewrite' is a read only variable 9Expected error 'Read only variable' 10SELECT COUNT(@@GLOBAL.innodb_doublewrite); 11COUNT(@@GLOBAL.innodb_doublewrite) 121 131 Expected 14'#---------------------BS_STVARS_026_03----------------------#' 15SELECT IF(@@GLOBAL.innodb_doublewrite, "ON", "OFF") = VARIABLE_VALUE 16FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 17WHERE VARIABLE_NAME='innodb_doublewrite'; 18IF(@@GLOBAL.innodb_doublewrite, "ON", "OFF") = VARIABLE_VALUE 191 201 Expected 21SELECT COUNT(@@GLOBAL.innodb_doublewrite); 22COUNT(@@GLOBAL.innodb_doublewrite) 231 241 Expected 25SELECT COUNT(VARIABLE_VALUE) 26FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES 27WHERE VARIABLE_NAME='innodb_doublewrite'; 28COUNT(VARIABLE_VALUE) 291 301 Expected 31'#---------------------BS_STVARS_026_04----------------------#' 32SELECT @@innodb_doublewrite = @@GLOBAL.innodb_doublewrite; 33@@innodb_doublewrite = @@GLOBAL.innodb_doublewrite 341 351 Expected 36'#---------------------BS_STVARS_026_05----------------------#' 37SELECT COUNT(@@innodb_doublewrite); 38COUNT(@@innodb_doublewrite) 391 401 Expected 41SELECT COUNT(@@local.innodb_doublewrite); 42ERROR HY000: Variable 'innodb_doublewrite' is a GLOBAL variable 43Expected error 'Variable is a GLOBAL variable' 44SELECT COUNT(@@SESSION.innodb_doublewrite); 45ERROR HY000: Variable 'innodb_doublewrite' is a GLOBAL variable 46Expected error 'Variable is a GLOBAL variable' 47SELECT COUNT(@@GLOBAL.innodb_doublewrite); 48COUNT(@@GLOBAL.innodb_doublewrite) 491 501 Expected 51SELECT innodb_doublewrite = @@SESSION.innodb_doublewrite; 52ERROR 42S22: Unknown column 'innodb_doublewrite' in 'field list' 53Expected error 'Readonly variable' 54