anchor.diff:      fun(MetaId) ->
         lists:map(
           fun(DesiredType) ->
  -          [list_to_binary(MetaId), DesiredType]
  +          [dao_helper:name(MetaId), DesiredType]
           end,
           DesiredTypes)
       end,
  
positive.code:   UidBin = case FileCriteria#file_criteria.uid of
               null -> null;
               Uid when is_binary(Uid) -> Uid;
               Uid when is_list(Uid) -> list_to_binary(Uid);
               Uid when is_integer(Uid) -> list_to_binary(integer_to_list(Uid))
             end,
  
    QueryArgs = case FilePattern of
  
negative.code:                   case lists:nth(length(FilePattern), FilePattern) of
                      $* ->
                        Prefix = lists:sublist(FilePattern, length(FilePattern) - 1),
                        #view_query_args{start_key = [UidBin, dao_helper:name(Prefix)], end_key = [UidBin, end_key_for_prefix(Prefix)]};
                      _ -> #view_query_args{keys = [[UidBin, dao_helper:name(FilePattern)]]}
                    end
                end,
  
  