anchor.diff:          ]
       }).
   
  +%% ------------------------------------------------------------------
  +%% @doc Select a session.
  +%% @end
  +%% ------------------------------------------------------------------
   select_session(#t_session{} = Session) ->
       {ok, Client} = get_cqerl_client(),
       {ok, Result} = cqerl:run_query(Client, #cql_query{
  
positive.code:         ]
      }).
  
  update_user(#t_user{} = User) -> insert_user(User).
  
  select_user(#t_user{} = User) ->
      {ok, Client} = get_cqerl_client(),
      {ok, Result} = cqerl:run_query(Client, #cql_query{
  
negative.code:         )
      ", [?KEYSPACE, ?TABLE_ALIAS]));
  
  %% ------------------------------------------------------------------
  %% @doc Create the `session` table.
  %% @end
  %% ------------------------------------------------------------------
  create_table(session) ->
      {ok, Client} = get_cqerl_client(),
      {ok, _} = cqerl:run_query(Client, io_lib:format("
  