1. Introduction Column-oriented storage is faster for analytical workloads because it organizes data in a way that closely matches how analytical queries access, filter, and aggregate information, which leads to dramatic reductions in disk I/O, significantly better CPU cache utilization, and much stronger compression opportunities that compound into large performance gains at scale. When people…

1. What is ClickHouse? ClickHouse is a high-performance, open-source, column-oriented database management system (DBMS) designed specifically for Online Analytical Processing (OLAP) workloads where very large volumes of data must be queried and aggregated extremely fast. ClickHouse was originally developed by Yandex to power real-time analytics for web-scale applications, and it is now widely used in…