In MySQL, can I copy one row to insert into the same table?

insert into table select * from table where primarykey=1

I just want to copy one row to insert into the same table (i.e., I want to duplicate an existing row in the table) but I want to do this without having to list all the columns after the "select", because this table has too many columns.

But when I do this, I get the error:

Duplicate entry 'xxx' for key 1

I can handle this by creating another table with the same columns as a temporary container for the record I want to copy:

create table oldtable_temp like oldtable;insert into oldtable_temp select * from oldtable where key=1;update oldtable_tem set key=2;insert into oldtable select * from oldtable where key=2;

Is there a simpler way to solve this?