v.25.8Improvement

Add a tool to simulate, visualize and

Add a tool to simulate, visualize and compare merge selectors. #71496 (Sergei Trifonov).
Adds a tool to simulate, visualize, and compare merge selectors in ClickHouse.

Why it matters

This feature helps users understand and analyze how merge selectors work by providing a way to simulate their behavior, visualize the selection process, and compare different selectors. It improves the ability to debug and optimize merge strategies in ClickHouse.

How to use it

Users can enable this feature by accessing the new tool introduced for merge selectors simulation and visualization. The tool allows inputting different merge selectors to see their results and comparisons interactively.