olap

The world's fastest open query engine for sub-second analytics both on and off the data lakehouse. With the flexibility to support nearly any scenario, StarRocks provides best-in-class performance for multi-dimensional analytics, real-time analytics, and ad-hoc queries. A Linux Foundation project.

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UpdatedFeb 20, 2026
Java

oceanbase /oceanbase

Star10k

The Fastest Distributed Database for Transactional, Analytical, and AI Workloads.

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UpdatedFeb 15, 2026
C++

databendlabs /databend

Star9.2k

Data Agent Ready Warehouse : One for Analytics, Search, AI, Python Sandbox. — rebuilt from scratch. Unified architecture on your S3.

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UpdatedFeb 20, 2026
Rust

apache /datafusion

Star8.4k

Apache DataFusion SQL Query Engine

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UpdatedFeb 20, 2026
Rust

paradedb /paradedb

Sponsor

Star8.4k

Simple, Elastic-quality search for Postgres

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UpdatedFeb 20, 2026
Rust

crate /crate

Star4.4k

CrateDB is a distributed and scalable SQL database for storing and analyzing massive amounts of data in near real-time, even with complex queries. It is PostgreSQL-compatible, and based on Lucene.

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UpdatedFeb 20, 2026
Java

DataLinkDC /dinky

Star3.7k

Dinky is a real-time data development platform based on Apache Flink, enabling agile data development, deployment and operation.

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UpdatedDec 19, 2025
Java

TuiQiao /CBoard

Star3.1k

An easy to use, self-service open BI reporting and BI dashboard platform.

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UpdatedDec 6, 2025
JavaScript

heavyai /heavydb

Star3.1k

HeavyDB (formerly MapD/OmniSciDB)

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UpdatedJan 6, 2026
C++

chdb-io /chdb

Sponsor

Star2.6k

chDB is an in-process OLAP SQL Engine 🚀 powered by ClickHouse

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UpdatedFeb 13, 2026
C++

oceanbase /seekdb

Star2.4k

The AI-Native Search Database. Unifies vector, text, structured and semi-structured data in a single engine, enabling hybrid search and in-database AI workflows.

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