The thing is that once your child turns 1 they don't magically become perfect solid-consuming toddlers. It is a slow transition and you might not even see an interest in your child with solids until several months after he turns 1. So it makes no sense to stop nursing at that point IMO. Your doc gave you short advice without taking the whole picture into consideration.
The only part that can change is you should encourage solids first before nursing sometime around the first year. Even that, some babies are ready for at the 12 month mark and some are not.
I would suggest continuing to offer a variety of textures and flavors at 9 months. Finger foods are a lot of fun too! So many good ideas on here in the solids section as well.