'#---------------------BS_STVARS_027_01----------------------#' SELECT COUNT(@@GLOBAL.innodb_file_io_threads); COUNT(@@GLOBAL.innodb_file_io_threads) 1 1 Expected '#---------------------BS_STVARS_027_02----------------------#' SET @@GLOBAL.innodb_file_io_threads=1; ERROR HY000: Variable 'innodb_file_io_threads' is a read only variable Expected error 'Read only variable' SELECT COUNT(@@GLOBAL.innodb_file_io_threads); COUNT(@@GLOBAL.innodb_file_io_threads) 1 1 Expected '#---------------------BS_STVARS_027_03----------------------#' SELECT @@GLOBAL.innodb_file_io_threads = VARIABLE_VALUE FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARIABLE_NAME='innodb_file_io_threads'; @@GLOBAL.innodb_file_io_threads = VARIABLE_VALUE 1 1 Expected SELECT COUNT(@@GLOBAL.innodb_file_io_threads); COUNT(@@GLOBAL.innodb_file_io_threads) 1 1 Expected SELECT COUNT(VARIABLE_VALUE) FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE VARIABLE_NAME='innodb_file_io_threads'; COUNT(VARIABLE_VALUE) 1 1 Expected '#---------------------BS_STVARS_027_04----------------------#' SELECT @@innodb_file_io_threads = @@GLOBAL.innodb_file_io_threads; @@innodb_file_io_threads = @@GLOBAL.innodb_file_io_threads 1 1 Expected '#---------------------BS_STVARS_027_05----------------------#' SELECT COUNT(@@innodb_file_io_threads); COUNT(@@innodb_file_io_threads) 1 1 Expected SELECT COUNT(@@local.innodb_file_io_threads); ERROR HY000: Variable 'innodb_file_io_threads' is a GLOBAL variable Expected error 'Variable is a GLOBAL variable' SELECT COUNT(@@SESSION.innodb_file_io_threads); ERROR HY000: Variable 'innodb_file_io_threads' is a GLOBAL variable Expected error 'Variable is a GLOBAL variable' SELECT COUNT(@@GLOBAL.innodb_file_io_threads); COUNT(@@GLOBAL.innodb_file_io_threads) 1 1 Expected SELECT innodb_file_io_threads = @@SESSION.innodb_file_io_threads; ERROR 42S22: Unknown column 'innodb_file_io_threads' in 'field list' Expected error 'Readonly variable'