anchor.diff:  			[{filter, maps:find(fq, Opts)}, {sort, maps:find(sort, Opts)}]),
   
   	case catch riakc_pb_socket:search(Pid, Index, Query, Qopts, ?DEFAULT_REQUEST_TIMEOUT) of
  -		{ok, {_, Docs, _, _}} ->
  -			[begin
  -				{_, Id} = lists:keyfind(<<"_yz_rk">>, 1, Doc),
  -				Id
  -			end || {_, Doc} <- Docs];
  -		{ok, _}          -> [];
  -		{error, Reason}  -> exit(Reason);
  -		{'EXIT', Reason} -> exit(Reason);
  -		Else             -> exit({bad_return_value, Else})
  +		{ok, {_, Docs, _, _}} -> lists:foldl(Handle, AccIn, Docs);
  +		{ok, _}               -> AccIn;
  +		{error, Reason}       -> exit(Reason);
  +		{'EXIT', Reason}      -> exit(Reason);
  +		Else                  -> exit({bad_return_value, Else})
   	end.
   
   -spec get(pid(), bucket_and_type(), binary()) -> task().
  
positive.code: 
  -spec list(pid(), binary(), map()) -> [binary()].
  list(Pid, Index, Opts) ->
  	Start = maps:get(start, Opts, 0),
  	Rows = maps:get(rows, Opts, ?DEFAULT_REQUEST_ROWS),
  	Query = maps:get(q, Opts, <<"*:*">>),
  
negative.code: -export([
  	list/2,
  	list/3,
  	fold/4,
  	fold/5,
  	get/3,
  	get/4,
  	get/5,
  