v.25.5Improvement

Add tool for query latency analyzing

Add tool for query latency analyzing. #79978 (Sergei Trifonov).
Added a new tool for analyzing query latency in ClickHouse.

Why it matters

This feature provides a mechanism to analyze and understand query latency, helping users identify performance bottlenecks and optimize query execution times.

How to use it

Users can enable and utilize the query latency analysis tool through ClickHouse's monitoring and diagnostic interfaces. Specific usage instructions and commands are available in the associated documentation.