rebuild_handlers

# File activerecord/lib/active_record/query_logs.rb, line 166
        def rebuild_handlers
          handlers = []
          @tags.each do |i|
            if i.is_a?(Hash)
              i.each do |k, v|
                handlers << [k, build_handler(k, v)]
              end
            else
              handlers << [i, build_handler(i)]
            end
          end
          handlers.sort_by! { |(key, _)| key.to_s }
        end