(The whole tutorial has four features: "new", using the latest stable version of Clickhouse 21.3.7.14; "Fine", providing all configuration files, notes and tool software; "Full", covering almost all Clickhouse content, one-stop solution; "Reality" is explained with a real production environment scene. All knowledge points are based on practicality, from fist to meat, step by step, so that you can master Clickhouse from 0 to 1!)