anchor.diff:                                     State#state.bucket,
                                      Field,
                                      Term) of
  -        {ok, Results} ->
  +        {ok, _Results} ->
               {ok, State};
           {error, Reason} ->
               {error, Reason, State}
  
positive.code:                                    Field,
                                     lists:min([StartTerm, EndTerm]),
                                     lists:max([StartTerm, EndTerm])) of
          {ok, Results} ->
              {ok, State};
          {error, Reason} ->
              {error, Reason, State}
  
negative.code:                                    Field,
                                     lists:min([StartTerm, EndTerm]),
                                     lists:max([StartTerm, EndTerm])) of
          {ok, _Results} ->
              {ok, State};
          {error, Reason} ->
              {error, Reason, State}
  