How can I copy from in plpgsql function with input parameter filepath

Question

I would like to read file temp table in a function, like below.

create or replace function test(filepath text)
returns void
as
$$
declare
begin

copy sometable from filepath;

end
$$
language plpgsql; 

Is there any way?

Answer 1

I can do than with execute.

execute format('
    copy sometable from %L with csv;
',filepath);