ClickHouse® is a real-time analytics DBMS

DuckDB is an analytical in-process SQL database management system

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.

OceanBase is an enterprise distributed relational database with high availability, high performance, horizontal scalability, and compatibility with SQL standards.

𝗗𝗮𝘁𝗮, 𝗔𝗻𝗮𝗹𝘆𝘁𝗶𝗰𝘀 & 𝗔𝗜. Modern alternative to Snowflake. Cost-effective and simple for massive-scale analytics. https://databend.com

Apache DataFusion SQL Query Engine

Postgres for Search and Analytics

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 OmniSciDB)

ByConity is an open source cloud data warehouse

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

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

Hyperconverged cloud-edge native database

An educational OLAP database system.

Apache DataFusion Ballista Distributed Query Engine

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

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。