Added the KILL MUTATION Statement That Allows Removing Mutations That Are for Some Reasons Stuck

Why it matters

This feature addresses the issue of mutations getting stuck and provides administrators with tools to manually terminate these stuck mutations. Additionally, the new fields in the system.mutations table help users identify and diagnose mutation failures more effectively by providing detailed failure information.

How to use it

To remove a stuck mutation, use the KILL MUTATION statement targeting the specific mutation. For troubleshooting, query the system.mutations table and utilize the new fields (latest_failed_part, latest_fail_time, latest_fail_reason) to gather information about the most recent mutation failures.