Problem Statement
Now Stats command has the argument bucket_nullable to control whether it should includes null buckets in group-by aggregations.

Since Eventstats now set all the null value into a valid single group. Should we also add such button to support both behaviors?

Current State
Explains the existing setup or context and its shortcomings.

Long-Term Goals

• Describe the ideal outcome or future state you aim to achieve.
• What are the primary objectives of this solution should fulfill in the long run?
• How will this solution ensure sustainability or scalability over time?
• Consider whether the solution addresses the root problem and aligns with the overall goals.
• How confident are we that this solution solves the problem?

Proposal
Summarizes the suggested solution or improvement.

Approach
Details the steps or strategy to implement the proposal.

Alternative
Alternative that can serve as workarounds to partially or temporarily solve the problem.

Implementation Discussion
Outlines point the discussion regarding the proposed implementation.