ClickHouse
Real-time column-oriented analytical database for sub-second queries on billions of rows.
About ClickHouse
ClickHouse is a high-performance, open-source column-oriented database management system designed for real-time analytical data processing. It handles billions of rows with sub-second query response times, making it ideal for dashboards, event analytics, time-series data, and log analysis workloads.
ClickHouse supports SQL with advanced analytical functions, distributed queries across clusters, data compression (up to 10x), and integrations with common BI and data tools. It is used by enterprises like Cloudflare, GitLab, and 2K Games for high-velocity analytics. Runs on Linux, macOS, and FreeBSD with a single binary or Docker deployment.
Key Features
- Column-oriented storage with sub-second queries on petabyte-scale data
- Real-time data ingestion with linear horizontal scalability
- Advanced SQL with window functions, arrays, aggregates, and approximate deduplication
- Data compression up to 10x with vectorized query execution
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