anchor.diff:  %% ReadyForQuery
   on_message({$Z, <<Status:8>>}, State) ->
       State2 = case command_tag(State) of
  -                 squery ->
  +                 C when C == squery; C == execute_batch ->
                        case State#state.results of
                            [Result] ->
                                finish(State, done, Result);
  
positive.code:                      %% TODO send Describe as a part of equery, needs text format support
                       notify(State, {columns, get_columns(State)});
                   bind ->
                       finish(State, ok)
               end,
      {noreply, State2};
  
  
negative.code:                      finish(State, Notice, {ok, Count, Rows});
                   {execute, _, _} ->
                       finish(State, Notice, {ok, Rows});
                   {execute_batch, {_, Count}, []} ->
                       add_result(State, Notice, {ok, Count});
                   {execute_batch, {_, Count}, _} ->
                       add_result(State, Notice, {ok, Count, Rows});
                   {execute_batch, _, _} ->
                       add_result(State, Notice, {ok, Rows});
                   {C, {_, Count}, []} when C == squery; C == equery ->
                       add_result(State, Notice, {ok, Count});
                   {C, {_, Count}, _} when C == squery; C == equery ->
  