The open-source real-time OLAP landscape features the following (not limited to) established products: ClickHouse, an open-source Online Analytical Processing (OLAP) database, stands out for its…

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Specialized open-source real-time OLAP databases provide sub-second analytics performance. Key tools include ClickHouse, Apache Druid, Apache Kylin, Apache Pinot, Apache Doris, and StarRocks, each offering unique features and strengths. Vendor solutions like Rockset, DuckDB, Firebolt, and Kinetica are also highlighted. The post discusses strengths such as multidimensional analysis, SQL compatibility, resilience, and scalability, with examples of leading companies using these systems in production.

Real-time OLAP systems (Open source)