PostgreSQL: drop user Or drop role?

Question

I created a read only user in PostgreSQL using the command line by:

CREATE USER xyz WITH ENCRYPTED PASSWORD 'xxx';
GRANT SELECT ON DATABASE mydb TO xyz;

In order to delete this user, what's the difference between

DROP USER xyz;

and

DROP ROLE xyz;

Answer 1

There is no difference. From the docs:

DROP USER is simply an alternate spelling of DROP ROLE.