message: use uniform distribution sampling
diff: @@ -170,16 +170,11 @@ impl FastFieldSerializerEstimate for LinearInterpolFastFieldSerializer {
  let last_val = fastfield_accessor.get(stats.num_vals as u32 - 1);
  let slope = get_slope(first_val, last_val, stats.num_vals);
  - // let's sample at 10%, 20%, 25%, 50%, 75%, 90%
  + // let's sample at 0%, 5%, 10% .. 95%, 100%
  let num_vals = stats.num_vals as f32 / 100.0;
  - let sample_positions = [
  - (num_vals * 10.0) as usize,
  - (num_vals * 20.0) as usize,
  - (num_vals * 25.0) as usize,
  - (num_vals * 50.0) as usize,
  - (num_vals * 75.0) as usize,
  - (num_vals * 90.0) as usize,
  - ];
  + let sample_positions = (0..20)
  + .map(|pos| (num_vals * pos as f32 * 5.0) as usize)
  + .collect::<Vec<_>>();
  let max_distance = sample_positions
  .iter()
  