references_eager_loaded_tables?

# File activerecord/lib/active_record/relation.rb, line 1022
      def references_eager_loaded_tables?
        joined_tables = build_joins([]).flat_map do |join|
          if join.is_a?(Arel::Nodes::StringJoin)
            tables_in_string(join.left)
          else
            join.left.name
          end
        end

        joined_tables << table.name

        # always convert table names to downcase as in Oracle quoted table names are in uppercase
        joined_tables.map!(&:downcase)

        !(references_values.map(&:to_s) - joined_tables).empty?
      end