anchor.diff:  
   -spec query(pid(), string()) ->
                      {[binary()], [tuple()]} | {error, term()}.
  +%% @doc Execute a SELECT query given in a string (2nd argument) with
  +%%      client Pid (1st arg).  The result returned is a tuple
  +%%      containing a list of columns as binaries in the first element,
  +%%      and a list of records, each represented as a list of values,
  +%%      in the second element.
   query(Pid, QueryText) ->
       query(Pid, QueryText, []).
   
   -spec query(pid(), string(), [{binary(), binary()}]) ->
                      {[binary()], [tuple()]} | {error, term()}.
  +%% @doc Execute a SELECT query given in a string (2nd argument) with
  +%%      client Pid (1st arg), using interpolations (3rd arg). The
  +%%      result returned is a tuple containing a list of columns as
  +%%      binaries in the first element, and a list of records, each
  +%%      represented as a list of values, in the second element.
   query(Pid, QueryText, Interpolations) ->
       Message = riakc_ts_query_operator:serialize(QueryText, Interpolations),
       Response = server_call(Pid, Message),
  
positive.code: 
  -spec get(pid(), table_name(), [ts_value()], proplists:proplist()) ->
                   {[binary()], [[ts_value()]]}.
  get(Pid, TableName, Key, Options) ->
      Message = riak_pb_ts_codec:encode_tsgetreq(TableName, Key, Options),
      case server_call(Pid, Message) of
  
negative.code: 
  -spec delete(pid(), table_name(), [ts_value()], proplists:proplist()) ->
                      ok | {error, term()}.
  %% @doc Delete a record, if there is one, having the fields
  %%      constituting the primary key in the table (2nd arg) equal to
  %%      the composite key (3rd arg, supplied as a list), using client
  %%      Pid (1st arg).  Options (4th arg) is a proplist which can
  %%      include values for 'vclock' and 'timeout'. Unless vclock is
  %%      supplied, a get is called in order to obtain one.
  delete(Pid, TableName, Key, Options)
    when is_list(Key) ->
      Message = riak_pb_ts_codec:encode_tsdelreq(TableName, Key, Options),
  