DELIMITER //
CREATE TRIGGER TRG_FACTURA_ADD AFTER UPDATE
ON FACTURA
 FOR EACH ROW
BEGIN
   IF OLD.monto_resta <= 0 AND NEW.monto_resta > 0 THEN
INSERT INTO bolsa_factura(id_bolsa, id_factura, fecha_telcel)(SELECT id_bolsa, id_factura, CURRENT_TIMESTAMP
         FROM historico_bolsa_factura
         WHERE id_factura = OLD.id_factura
         LIMIT 1);
   END IF;
END;
//