ShardingSphere is an open source distributed database middleware whose core functions are data sharding and read-write separation. Apache ShardingSphere is an ecosystem of open source distributed database solutions. It consists of three products, JDBC, Proxy and Sidecar (under planning), which can be deployed independently or in conjunction with mixed deployments. They all provide functions such as standardized data horizontal expansion, distributed transactions, and distributed governance, and can be applied to various application scenarios such as Java isomorphism, heterogeneous languages, and cloud native. It currently supports functions such as data sharding, read-write separation, data encryption, and shadow database pressure testing, as well as databases such as MySQL, PostgreSQL, SQLServer, and Oracle. The latest official version is 5.0.0-beta. Note: The actual version used by the project is 4.1.1 (officially no longer maintained), but 5.0.0-beta is already trying to use it, just because 5.0.0-beta does not support UNION queries for the time being, so the project decided to use 4.1 .1 version of the middleware.
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