v.23.2Improvement

Extend Query Cache Logging for Better Caching Investigations

Extend the logging in the Query Cache to improve investigations of the caching behavior. #45751 (Robert Schulze).
Extended logging capabilities in the Query Cache to provide more detailed information about caching behavior.

Why it matters

This feature improves the ability to investigate and analyze how the Query Cache is functioning by adding richer logging details, helping users to better understand cache hits, misses, and decisions, which aids in performance tuning and debugging.

How to use it

The enhanced logging is automatically integrated into the Query Cache. Users can enable or adjust logging settings related to the Query Cache through the usual ClickHouse logging configuration to benefit from the improved insights.