OpenTenBase/TXSQL

AliSQL is a MySQL branch originated from Alibaba Group. Fetch document from Release Notes at bottom.

polardbx-engine is a MySQL branch originated from Alibaba Group, especially supports large-scale distributed database system.

TiDB is built for agentic workloads that grow unpredictably, with ACID guarantees and native support for transactions, analytics, and vector search. No data silos. No noisy neighbors. No infrastructure ceiling.

MySQL Server, the world's most popular open source database, and MySQL Cluster, a real-time, open source transactional database.

Percona Server

WeSQL is an innovative MySQL distribution that adopts a compute-storage separation architecture, with storage backed by S3 (and S3-compatible systems). It can run on any cloud, ensuring no vendor lock-in.

OpenTenBase is an enterprise-level distributed HTAP open source database.

MariaDB server is a community developed fork of MySQL server. Started by core members of the original MySQL team, MariaDB actively works with outside developers to deliver the most featureful, stable, and sanely licensed open SQL server in the industry.

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