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ClickHouse

Blazing-fast open-source column-oriented database for real-time analytics.

ClickHouse is an open-source column-oriented OLAP database management system built for real-time analytical queries over very large datasets. It uses vectorized execution and aggressive compression to scan billions of rows per second on commodity hardware and speaks a SQL dialect. It is notable as one of the fastest open-source analytics databases and is widely used for observability, product analytics, and event data.

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Repository

ClickHouse/ClickHouse

Language

C++

What you'd build with it

  • Power real-time dashboards and analytics over high-volume event or log data from an AI product
  • Store and aggregate LLM usage, tracing, and observability metrics at scale
  • Run fast ad-hoc SQL analytics over billions of rows without a dedicated data warehouse

Tags

olapanalyticscolumnarsql