Open
Description
When looking at larger intervals of time, Kubernetes PR-Time-To-Merge uses this calculation:
greatest(percentile_disc(0.5) within group (order by open_to_lgtm asc), 0) as m_o2l_a,
This is wrong; it leads to having a greater value the larger your time interval is, which is deceptive. For aggregating a median, there's two reasonable possibilities: a median of medians, or an average of medians. In practice, those two values are rarely that divergent, and an average is faster to calculate.
Therefore it should be:
avg(percentile_disc(0.5) within group (order by open_to_lgtm asc), 0) as m_o2l_a,
This mistake exists across all cacluations in this view.
Assigning to myself, will submit a PR later.
/assign