What database to choose for updating tree data in one operation?

Question

NoSQL

User documents are stored in a tree structure:

Document (object)
     |- Folders (array)
           |-Section (object)               
                 |- Unit (object)
           |-Section (object)
                |- Unit (object)

Each element of this structure can store data of the form:

{
   name: 'title',
   folders: [
       {
           name: 'title'
       }
   ]
}

It is necessary to add/remove/update any element of such a structure in one operation. Most likely, MongoDB will not work because large nesting greatly affects performance.
Advise any alternatives for my task.

Answer 1

rethinkdb