class method self.load_from

# File activerecord/lib/active_record/connection_adapters/schema_cache.rb, line 8
      def self.load_from(filename)
        return unless File.file?(filename)

        read(filename) do |file|
          if filename.include?(".dump")
            Marshal.load(file)
          else
            if YAML.respond_to?(:unsafe_load)
              YAML.unsafe_load(file)
            else
              YAML.load(file)
            end
          end
        end
      end