     foreign key (_feed_url, service_id) references calendar (_feed_url, service_id)
 );
 
+/*
 create table fare_attributes (
     _feed_url text not null,
     fare_id text not null,

    drop_off_type integer,
    shape_dist_traveled real,
    timepoint integer,
    foreign key (_feed_url, trip_id) references trips (_feed_url, trip_id),
    foreign key (_feed_url, stop_id) references stops (_feed_url, stop_id)
);

    exact_times integer
);

/*
create table transfers (
    _feed_url text not null,
    from_stop_id text not null,
