What is name in postgresql?

Question

PostgreSQL

I came across this code:

create table author(
  id serial primary key,
  author_name name
);

it turns out that the author_name column is of type name, but I can't find data on this type on the Internet.
Can anyone share information or a link about it?

P.S.: name is not a custom domain

Answer 1

What DBMS?
For example for PostgreSQL https://www.postgresql.org/docs/current/datatype-c... .