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TiDB (The pronunciation is: /'taɪdiːbi:/ tai-D-B, etymology: titanium) is a distributed SQL database. Inspired by the design of Google F1 and Google Spanner, TiDB supports the best features of both traditional RDBMS and NoSQL.

• Horizontal scalability Grow TiDB as your business grows. You can increase the capacity simply by adding more machines.

• Asynchronous schema changes Evolve TiDB schemas as your requirement evolves. You can add new columns and indices without stopping or affecting the on-going operations.

• Consistent distributed transactions Think of TiDB as a single-machine RDBMS. You can start a transaction that crosses multiple machines without worrying about consistency. TiDB makes your application code simple and robust.

• Compatible with MySQL protocol Use TiDB as MySQL. You can replace MySQL with TiDB to power your application without changing a single line of code in most cases.

• Written in Go Enjoy TiDB as much as we love Go. We believe Go code is both easy and enjoyable to work with. Go makes us improve TiDB fast and makes it easy to dive into the codebase.

• NewSQL over TiKV Turn TiKV into NewSQL database.

• Multiple storage engine support Power TiDB with your most favorite engines. TiDB supports many popular storage engines in single-machine mode. You can choose from GolevelDB, LevelDB, RocksDB, LMDB, BoltDB and even more to come.

For more details, read our blog How we build TiDB

Read the Roadmap.

Read the Quick Start.

• English
• 简体中文

Contributions are welcomed and greatly appreciated. See CONTRIBUTING.md for details on submitting patches and the contribution workflow.

@PingCAP

[email protected]

Google Group

TiDB is under the Apache 2.0 license. See the LICENSE file for details.

• Thanks cznic for providing some great open source tools.
• Thanks GolevelDB, LMDB, BoltDB and RocksDB for their powerful storage engines.