create table auth_enums (
  key text primary key not null,
  created_at timestamptz not null default now()
);

insert into auth_enums (key) values ('awsv4');
insert into auth_enums (key) values ('basic');
insert into auth_enums (key) values ('bearer');
insert into auth_enums (key) values ('digest');
insert into auth_enums (key) values ('hawk');
insert into auth_enums (key) values ('noauth');
insert into auth_enums (key) values ('oauth1');
insert into auth_enums (key) values ('oauth2');
insert into auth_enums (key) values ('ntlm');