use EXPLAIN to optimize the QUERY, but it gives an error in FlySpeedSQL?

Friends, I would like to use EXPLAIN to optimize the MySQL QUERY, but it gives an error in FlySpeedSQL.

EXPLAIN

select

a.first_name,

a.last_name,

f.title,

f.description

from

actor a

join film_actor fa ON fa.actor_id = a.actor_id

join film f ON f.film_id = fa.film_id

where

a.first_name like 'A%'