mysql> create table new_table like old_table;
mysql> select @my_auto_increment:=auto_increment from information_schema.tables where table_name='old_table';
mysql> set @query = CONCAT("alter table new_table auto_increment = ", @my_auto_increment);
mysql> prepare stmt from @query;
mysql> execute stmt;
mysql> deallocate prepare stmt;
Grazie a mio fratello!