SQLSTATE 42601 on CREATE OR REPLACE FUNCTION

[fedoreremin-btf]

Describe the bug
When trying to execute create or replace function, it complains at SQLSTATE 42601

To Reproduce
execute

create or replace function concat(id int)
    returns text
    language plpgsql
    as
$$
declare
    name text;
begin
    select coalesce(last_name||' ', ''),
        coalesce(first_name||' ', ''),
        coalesce(middle_name||' ', '')
    into name
    from person
    where person.id = id;
    return trim(name);
end;
$$;

Expected behavior
Complete execution

Versions (please complete the following information):

• OS Version: Arch Linux
• sqls Version 0.2.27

Additional context