/*
 * call-seq:
 *    conn.endcopy()
 *
 * Waits until the backend completes the copying.
 * You should call this method after #putline or #getline.
 * Returns +nil+ on success; raises an exception otherwise.
 */
static VALUE
pgconn_endcopy(obj)
    VALUE obj;
{
    if (PQendcopy(get_pgconn(obj)) == 1) {
        rb_raise(rb_ePGError, "cannot complete copying");
    }
    return Qnil;
}