set log_queries=1; set log_queries_min_type='QUERY_FINISH'; set enable_global_with_statement=0; select /* test=01531, enable_global_with_statement=0 */ 2; system flush logs; select count() from system.query_log where event_date >= yesterday() and query like 'select /* test=01531, enable_global_with_statement=0 */ 2%' and current_database = currentDatabase() ; set enable_global_with_statement=1; select /* test=01531, enable_global_with_statement=1 */ 2; system flush logs; select count() from system.query_log where event_date >= yesterday() and query like 'select /* test=01531, enable_global_with_statement=1 */ 2%' and current_database = currentDatabase() ;