anchor.diff:  send(#state{mod = Mod, sock = Sock}, Type, Data) ->
       Mod:send(Sock, pgsql_wire:encode(Type, Data)).
   
  -notify(#state{queue = Q} = State, Message) ->
  +notify(#state{queue = Q}, Message) ->
       {{From, Ref}, _} = queue:get(Q),
       From ! {Ref, Message}.
   
  
positive.code:         {value, {_, <<"on">>}}  -> put(datetime_mod, pgsql_idatetime);
          {value, {_, <<"off">>}} -> put(datetime_mod, pgsql_fdatetime)
      end,
      notify(State, ok),
      {noreply, State#state{handler = on_message,
                           txstatus = Status,
                           queue = queue:drop(Queue)}};
  
negative.code: init([]) ->
      {ok, #state{}}.
  
  handle_call({get_parameter, Name}, _From, State) ->
      case lists:keysearch(Name, 1, State#state.parameters) of
          {value, {Name, Value}} -> Value;
          false                  -> Value = undefined
  