1--disable_query_log 2--let slow_query_log_old=`SELECT Variable_value FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE Variable_name = 'slow_query_log';` 3SET GLOBAL slow_query_log=0; 4 5--let slow_query_log_file_old=`SELECT Variable_value FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE Variable_name = 'slow_query_log_file';` 6--let log_output_old=`SELECT Variable_value FROM INFORMATION_SCHEMA.GLOBAL_VARIABLES WHERE Variable_name = 'log_output';` 7 8SET GLOBAL log_output=FILE; 9 10--enable_query_log 11