Does this require subjunctive?

Does this require subjunctive?
 

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!

The subjunctive isn't needed.

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?

'Es necesario que' always mandates the subjunctive.