cache_sql

# File activerecord/lib/active_record/connection_adapters/abstract/query_cache.rb, line 68
        def cache_sql(sql, binds)
          result =
            if @query_cache[sql].key?(binds)
              ActiveSupport::Notifications.instrument("sql.active_record",
                :sql => sql, :name => "CACHE", :connection_id => object_id)
              @query_cache[sql][binds]
            else
              @query_cache[sql][binds] = yield
            end

          result.collect { |row| row.dup }
        end