TiDB - the open-source, cloud-native, distributed SQL database designed for modern applications.

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

Postgres for Search and Analytics

A cloud-native database based on PostgreSQL developed by Alibaba Cloud.

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Hyperconverged cloud-edge native database

PolarDB-X is a cloud native distributed SQL Database designed for high concurrency, massive storage, complex querying scenarios.

BaikalDB, A Distributed HTAP Database.

A portable embedded database using Arrow.

StoneDB is an Open-Source MySQL HTAP and MySQL-Native DataBase for OLTP, Real-Time Analytics, a counterpart of MySQLHeatWave. (https://stonedb.io)

Unified MySQL, Postgres & FlightSQL Server, Powered by DuckDB.

PolarDB-X is a cloud native distributed SQL Database designed for high concurrency, massive storage, complex querying scenarios.

In-memory, columnar, arrow-based database.

Low-Latency Transaction Scheduling via Userspace Interrupts: Why Wait or Yield When You Can Preempt? (SIGMOD 2025)

a serverless db service based on TiDB on the cloud, implementing dynamically scale the compute and storage nodes based on business load changes.

In a nutshell, EinsteinDB is a persistent indexing scheme based off of LSH-KVX that exploits the distinct merits of hash index and B+-Tree index to support range scan and avoids long NVM writes for maintaining consistency; thus improving on LSH’s performance guarantees for skewed data and adopts ordered-write consistency to ensure crash consiste…

Benchmark suite to evaluate HTAP database engines

A MySQL HTAP Database, Open Source version of MySQL Heatwave, Powered by AI&ML.

OLxPBench emphasizes that real-time queries, semantically consistent schema, and domain-specific workloads are essential in benchmarking, designing, and implementing HTAP systems.