post_reference_aggregate_order_by
order by aggregate values of table "post_reference"
input post_reference_aggregate_order_by {
  avg: post_reference_avg_order_by
  count: order_by
  max: post_reference_max_order_by
  min: post_reference_min_order_by
  stddev: post_reference_stddev_order_by
  stddev_pop: post_reference_stddev_pop_order_by
  stddev_samp: post_reference_stddev_samp_order_by
  sum: post_reference_sum_order_by
  var_pop: post_reference_var_pop_order_by
  var_samp: post_reference_var_samp_order_by
  variance: post_reference_variance_order_by
}