ClickHouse is a popular open-source database management system used for analyzing large amounts of data, particularly in the Big Data industry. The company's participation in the Analysys A10 conference in Beijing showcased its capabilities and popularity among top management, analysts, and IT professionals from various Chinese companies. The team won the OLAP contest for the second consecutive year by utilizing ClickHouse as the core of their solution to calculate complex marketing funnels efficiently. This achievement highlights ClickHouse's ability to handle large data sets and provide fast performance results, making it an attractive choice for businesses in the Big Data industry.