Maybe/db/migrate/20241017204250_add_accounts_indexes.rb

class AddAccountsIndexes < ActiveRecord::Migration[7.2]
  def change
    add_index :accounts, [ :family_id, :accountable_type ]
    add_index :accounts, [ :accountable_id, :accountable_type ]
    add_index :accounts, [ :family_id, :id ]
  end
end