text: CREATE TABLE IF NOT EXISTS url_stats (
      time timestamp NOT NULL,
      url text NOT NULL,
      region text NOT NULL,
      time_namelookup double precision NOT NULL,
      time_connect double precision NOT NULL,
      time_appconnect double precision NOT NULL,
      time_pretransfer double precision NOT NULL,
      time_starttransfer double precision NOT NULL,
      time_total double precision NOT NULL
  );
  
  SELECT create_hypertable('url_stats', 'time'); 