Does this require subjunctive?

[Falda Verde]

Okay so If I want to say I told you that big books are good, would it be:
Yo te dijo que libros grandes sean buenos. (with the subjunctive) or would it be: yo te dijo que libros grandes son buenos (without the subjunctive)? Any help would be much appreciated. Thanks!

[Rusty]

The subjunctive isn't needed.

[Falda Verde]

Alright, thank you. One more question on this topic of sunjunctive. So what if I want to say something like It is necessary that I go to the park, would that need subjunctive (Es necesario que yo vaya al parque)? Or no it would just be voy?

[Rusty]

'Es necesario que' always mandates the subjunctive.