ClickHouse® is a real-time analytics database management system

DuckDB is an analytical in-process SQL database management system

QuestDB is a high performance, open-source, time-series database

Apache Doris is an easy-to-use, high performance and unified analytics database.

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.

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

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

Simple, Elastic-quality search for Postgres

Apache DataFusion SQL Query Engine

Apache Pinot - A realtime distributed OLAP datastore

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.

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

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

HeavyDB (formerly MapD/OmniSciDB)

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

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.

ByConity is an open source cloud data warehouse

Apache DataFusion Ballista Distributed Query Engine

WebAssembly version of DuckDB

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.

An educational OLAP database system.

RadonDB is an open source, cloud-native MySQL database for building global, scalable cloud services

大数据知识仓库涉及到数据仓库建模、实时计算、大数据、数据中台、系统设计、Java、算法等。

Open-source Snowflake & Fivetran alternative, with Postgres compatibility.

[NOT MAINTAINED] Light-weight Python OLAP framework for multi-dimensional data analysis

📚深入浅出数据库存储：数据库理论、关系型数据库、文档型数据库、键值型数据库、New SQL、搜索引擎、数据仓库与 OLAP、大数据与数据中台

Saiku Analytics - The Worlds Greatest Open Source OLAP Browser

Business Intelligence (BI) in Python, OLAP

A curated list of resources for graph databases and graph computing tools

One advanced and mature open-source MPP (Massively Parallel Processing) database. Open source alternative to Greenplum Database.