pluck_to_hash | Extend ActiveRecord pluck to return array | Object-Relational Mapping library

I have this data model

House has_many :floors (attributes => name, size, city)
Floor has_many :rooms, belongs_to :house (attributes => name, rooms_count)
Room has_many :furnitures, belongs_to :floor (attributes => name, size)
Furniture belongs_to :room (attributes => name, size, color)

and I want to query that way

House.where(city: 'Paris').joins(floors: {rooms: :furnitures}).pluck(name, floors.id, floors.name, rooms.name, furnitures.name)

This is the SQL request I want to have :

=> SELECT houses.name, floors.id, floors.name, rooms.id, rooms.name, furnitures.id, furnitures.name FROM "houses" INNER JOIN "floors" ON "floors"."company_id" = "houses"."id" INNER JOIN "rooms" ON "rooms"."building_id" = "floors"."id" INNER JOIN "furnitures" ON "furnitures"."floor_id" = "rooms"."id" WHERE "houses"."name" = $1 [["city", "Paris"]]

Now I get the results raw in a big array of arrays, and I want to sort it like this, but I'm quite stuck :

[ { name: 'toto', floors: [ { id: '123', name: 'tata' rooms: [ { name: 'titi', furnitures: [ { name: 'table' }, { name: 'chair' } ] } ] } ] } ] I need to avoid N+1 request and only refuse to have a select *. The pluck_to_hash gem could be helpful but does not work very well with multi tables queries. Thanks for you help.