text: use authz;
  alter TABLE cred ADD tag varchar;
  alter TABLE future ADD target_key varchar;
  alter TABLE future ADD target_date timestamp;
  CREATE INDEX future_target_key ON authz.future (target_key);
  
  CREATE TABLE notified (
    user          text,
    target        text,
    key           text,
    last          timestamp,
    PRIMARY KEY (user,target,key)
  );
  
  