WanderCat-Sharding is an smart but not simple distributed database middleware, as a JDBC driver extension. WanderCat-Sharding is considered as a micro-service-oriented java library, which provides sharding databases and tables, read/write splitting, and distributed sequence features, also provides the distributed transaction.

• smart but not simple
  WanderCat-Sharding uses the simplest way of implementation, and the code is easy to understand.

• detailed documentation
  I'll document the key techniques, including distributed transactions, data sharding strategies, distributed ID generation policies, SQL routing, SQL syntax parsing, and so on.

• row-level data migration is avoided
  Database expansion only requires table-level data migration, avoiding row-level data migration, thus greatly reducing the cost of data migration.

• distributed transaction
  Distributed transaction using best efforts 1pc. The final consistency of data is realized under the premise of guaranteed performance.

• low maintenance cost
  It is simply a JDBC driver extension, not a database proxy, so no additional deployment is required, simple to use.

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This project is licensed under the Apache License 2.0 License - see the LICENSE.md file for details