Return field calculated by Firebird Generator (Firedac)

Question

I have Tfdquerys created at runtime for the purpose of entering records into my database.

Table:

CREATE TABLE TABLETESTE (
    ID  INTEGER
);

SET TERM ^ ;

/* Trigger: TABLETESTE_BI */
CREATE OR ALTER TRIGGER TABLETESTE_BI FOR TABLETESTE
ACTIVE BEFORE INSERT POSITION 0
as
begin
  if (new.id is null) then
    new.id = gen_id(gen_tableteste_id,1);
end
^

SET TERM ; ^

Code:

   Query1.Open('select * from TABLETESTE where 1 = 2');
   Query1.Append;
   Query1.Post;
   showmessage(Query1.FieldByName('id').AsString); //Retorna em branco, esperado retornar o próximo id

Doubt:

It is possible to make the query automatically receive the values changed by procedures/triggers in the database when performing the post of the same?