anchor.diff:  error_description(Err) ->
       mnesia_lib:error_desc(Err).
   
  --spec info() -> ok.
  +-spec info() -> 'ok'.
   info() ->
       case mnesia_lib:is_running() of
   	yes ->
  
positive.code: delete_table(Tab) ->
      mnesia_schema:delete_table(Tab).
  
  -spec add_table_copy(Tab, N, ST) -> t_result(ok) when
        Tab :: table(), N::node(), ST::storage_type().
  add_table_copy(Tab, N, S) ->
      mnesia_schema:add_table_copy(Tab, N, S).
  
  -spec del_table_copy(Tab::table(), N::node()) -> t_result(ok).
  del_table_copy(Tab, N) ->
      mnesia_schema:del_table_copy(Tab, N).
  
  -spec move_table_copy(Tab::table(), From::node(), To::node()) -> t_result(ok).
  move_table_copy(Tab, From, To) ->
      mnesia_schema:move_table(Tab, From, To).
  
  -spec add_table_index(Tab, I) -> t_result(ok) when
        Tab :: table(), I :: index_attr().
  add_table_index(Tab, Ix) ->
      mnesia_schema:add_table_index(Tab, Ix).
  -spec del_table_index(Tab, I) -> t_result(ok) when
        Tab::table(), I::index_attr().
  del_table_index(Tab, Ix) ->
      mnesia_schema:del_table_index(Tab, Ix).
  
  -spec transform_table(Tab::table(), Fun, [Attr]) -> t_result(ok) when
        Attr :: atom(),
        Fun:: fun((Record::tuple()) -> Transformed::tuple()) | ignore.
  transform_table(Tab, Fun, NewA) ->
  
negative.code: %% Table mgt - table load
  
  %% Dump a ram table to disc
  -spec dump_tables([Tab::table()]) -> t_result('ok').
  dump_tables(Tabs) ->
      mnesia_schema:dump_tables(Tabs).
  
  