Olap GitHub Repositories (2026) · Open Source Tools

One Postgres for your application data, full-text search, vector retrieval, and aggregations. Home of the pg_search extension.

Apache DataFusion SQL Query Engine

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

ClickHouse® is a real-time analytics database management system

Apache DataFusion Ballista Distributed Query Engine

DuckDB is a high-performance analytical database system

Apache Doris is a real-time analytics and hybrid search database for AI agents.

The First Real-Time Search Analytics Database

OceanBase is the unified distributed database for the AI era — open-source, multi-model, one engine for your most demanding workloads.

Ergonomic bindings to duckdb for Rust

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.

Open-source semantic layer: one cube for Excel (MDX/XMLA), dashboards, and AI agents (MCP). Mondrian + Apache Calcite.

Apache Pinot: a real-time analytics database for low-latency SQL and vector search, serving user-facing and agent-facing applications

Scalable graph analytics database powered by a multithreaded, vectorized temporal engine, written in Rust

Open, SQL-native time-series database for telemetry you need to keep. 38M+ records/sec ingestion, 25M+ rows/sec queries. InfluxDB Line Protocol and Telegraf compatible. Open Parquet on your storage. Single binary. S3/Azure native. Air-gap ready. AGPL-3.0.

AI-native HTAP database with Git-for-Data and built-in vector search, serving as the data and memory backbone for intelligent agents and applications.

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.