美团点评集团统一使用的MySQL数据库访问层的中间件。主要提供对业务开发透明、读写分库、分库分表能力，并提供了端到端SQL监控的集成方案。

A sharding library for Django

Go package for sharding databases ( Supports every ORM or raw SQL )

Demo Application for Dubbo, Mycat, Sharding-Proxy, Seata, SkyWalking, PinPoint, ZipKin, Docker, Kubernetes, Istio, Postman/Newman, FitNesse

A simple and robust database sharding with ActiveRecord.

Database Sharding system for MYSQL and Postgres

Spring DDAL是基于spring AOP和AbstractRoutingDataSource实现了读写分离和分库分表功能，是一款轻量级的插件，简单易用、轻耦合，使用注解即可完成读写分离、分库分表。

Database Sharding Library for ActiveRecord

Build regulation-ready .NET 10 applications — GDPR, NIS2, EU AI Act compliance out of the box. 112 packages: ROP/CQRS core, 13 DB providers, ABAC security, messaging patterns, sharding, CDC, caching, event sourcing, and more.

The Project Provides utilities to perform Sharding on MongoDB Database on Single Machine.

A zero-lookup, routing-capable UUIDv8 implementation with microsecond precision and embedded 32-bit sharding.

MySQL Horizontal Sharding Demo

A domain-specific language for database sharding configuration, built with Xtext and Xtend. Declare distribution strategies, validate query patterns against your schema, and generate deployment-ready configs for PostgreSQL/Citus and MySQL/Vitess. All from a single model, with IDE-integrated error reporting.

Scalable URL shortener built with Java, Spring Boot, PostgreSQL, LRU caching, and distributed systems concepts.

Runnable Spring Boot + MyBatis database-sharding demo over Mycat 1.6 on MySQL 8.0 - includes the driver/pool fix that makes Mycat 1.6 work against a MySQL 8 backend (English + ?? docs).

This project demonstrates database sharding using PostgreSQL with multiple shards

A repo. consist readme's of system design terminologies.

Go API Gateway + polyglot worker shards (Go · Python · Node.js) over SQL Server

Scalable distributed transaction processing system designed using microservices, Kafka, Redis, and database sharding for high-throughput and fault-tolerant architecture.

A production field guide for running Vitess on sharded MySQL: topology design, VSchema & routing, online DDL coordination, and observability.