ALTER TABLE `vn2008`.`clientes_gestdoc` 
ADD INDEX `fk_clientes_gestdoc_1_idx` (`Id_Cliente` ASC);

ALTER TABLE `vn2008`.`clientes_gestdoc` 
ADD CONSTRAINT `fk_clientes_gestdoc_3`
  FOREIGN KEY (`Id_Cliente`)
  REFERENCES `vn2008`.`Clientes` (`id_cliente`)
  ON DELETE RESTRICT
  ON UPDATE CASCADE;