...

• Since this is a completely new set of APIs, no backward compatibility concerns are anticipated. 
• Since nothing is deprecated in this KIP, users have no need to migrate unless they want to.

Rejected Alternatives

In order to be able to retrieve the consecutive tombstones, we can have a method or flag (disabled by default) to allow users to get all tombstones. If it is a real use case for the users, we will add it later.

Test Plan

The single-key_multi-timestamp interactive queries will be tested in versioned stored IQv2 integration test (like non-versioned key queries).