DROP ROLE IF EXISTS postgrest_test_authenticator, postgrest_test_anonymous, postgrest_test_default_role, postgrest_test_author; CREATE ROLE postgrest_test_authenticator WITH login noinherit; CREATE ROLE postgrest_test_anonymous; CREATE ROLE postgrest_test_default_role; CREATE ROLE postgrest_test_author; GRANT postgrest_test_anonymous, postgrest_test_default_role, postgrest_test_author TO postgrest_test_authenticator;