Galosys.Foundation.ShardingCore 26.5.19.1

.NET 8.0 This package targets .NET 8.0. The package is compatible with this framework or higher. 
dotnet add package Galosys.Foundation.ShardingCore --version 26.5.19.1
                    


                    

                
NuGet\Install-Package Galosys.Foundation.ShardingCore -Version 26.5.19.1
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package. 
<PackageReference Include="Galosys.Foundation.ShardingCore" Version="26.5.19.1" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="Galosys.Foundation.ShardingCore" Version="26.5.19.1" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="Galosys.Foundation.ShardingCore" />
                    


                            Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package. 
paket add Galosys.Foundation.ShardingCore --version 26.5.19.1
                    


                    

                
#r "nuget: Galosys.Foundation.ShardingCore, 26.5.19.1"
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package. 
#:package Galosys.Foundation.ShardingCore@26.5.19.1
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package. 
#addin nuget:?package=Galosys.Foundation.ShardingCore&version=26.5.19.1
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=Galosys.Foundation.ShardingCore&version=26.5.19.1
                    


                            Install as a Cake Tool

Galosys.Foundation.ShardingCore

ShardingCore 分表模块，基于 ShardingCore 封装，为 EF Core 提供按时间维度的自动分表能力。

成熟度: :yellow_circle: 预发布 — 核心功能已实现，部分功能存在已知问题，新项目即将投入使用

快速开始

1. 定义分片实体

[Table("orders")]
[Sharding(ShardingType.Month)]  // 按月分表：orders_202604、orders_202605...
public class Order : FullEntity<long>
{
    public string OrderNo { get; set; }
}

分片粒度 (ShardingType 枚举):

粒度 表名后缀 示例 适用场景
Year _yyyy orders_2026 低频数据、历史归档
Month _yyyyMM orders_202604 订单、日志（推荐）
Day _yyyyMMdd orders_20260415 高频数据、实时日志

2. 创建分片 DbContext

[DbContext("DefaultConnection", Dynamic = true)]  // Dynamic = true 启用分表
public class AppDbContext : ShardingDbContext<AppDbContext>
{
    public AppDbContext(DbContextOptions<AppDbContext> options) : base(options) { }
}

3. 注册服务

// Program.cs / Startup.cs
services.AddDbContext(configuration);

4. 手动建表（推荐）

由于 ShardingCore 自动建表功能存在已知问题，建议在应用启动时手动创建当前周期的物理表：

// 在应用启动后调用一次
using (var scope = app.Services.CreateScope())
{
    var db = scope.ServiceProvider.GetRequiredService<AppDbContext>();
    await db.EnsureShardingTablesAsync();
}

EnsureShardingTablesAsync 会扫描所有标记了 [Sharding] 的实体，为当前周期创建物理表（CREATE TABLE IF NOT EXISTS 语义，表已存在不报错）。

5. 正常使用

// 添加 — 自动路由到当月分表
await repository.AddAsync(new Order { OrderNo = "ORD-001" });
await repository.SaveAsync();

// 查询 — 自动路由并过滤
var orders = await repository.Query(o => o.OrderNo.StartsWith("ORD")).ToListAsync();

缓存策略

DynamicModelCacheKeyFactory 根据分片粒度优化模型缓存：

  • 按年分片: 模型缓存每年重建一次（缓存 key 包含年初日期）
  • 按月分片: 模型缓存每月重建一次（缓存 key 包含月初日期）
  • 按天分片: 模型缓存每天重建一次（缓存 key 包含当天日期）
  • 混合粒度: 取最细粒度（Day > Month > Year）

例如：DbContext 中有按月和按年两种分片实体，模型缓存按月重建。

已知问题

问题 状态 说明
自动建表 HostedService 报错 ❌ 未修复 ShardingCore 库限制，使用 EnsureShardingTablesAsync 替代
审计字段与路由评估时序冲突 ✅ 已修复 (v3) 审计填充已移至 SaveChangesAsync 重写中，确保路由评估后执行

配置参考

{
  "ConnectionStrings": {
    "DefaultConnection": "Server=.;Database=MyApp;Trusted_Connection=True;"  // 基础连接串
  }
}

// [DbContext] 特性配置
[DbContext("DefaultConnection", Dynamic = true, DbVersion = "8.0.34")]
//                       ↑ 连接串名称      ↑ 启用分表     ↑ 数据库版本(MySQL)
public class AppDbContext : ShardingDbContext<AppDbContext> { }

依赖

  • Galosys.Foundation.EntityFrameworkCore — EF Core 基础模块
  • Galosys.Foundation.Core — 核心库
  • ShardingCore — 分表核心库
Product Compatible and additional computed target framework versions.
.NET net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
26.5.19.1 37 5/19/2026
26.5.18.1 85 5/18/2026
26.5.15.1 84 5/15/2026
26.5.12.3 90 5/12/2026
26.5.12.2 86 5/12/2026
26.4.27.1-rc1 94 4/26/2026
26.4.25.1-rc1 84 4/25/2026
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26.4.22.2-rc6 85 4/22/2026
26.4.22.2-rc4 87 4/22/2026
26.4.22.2-rc3 86 4/22/2026
26.4.12.8-rc1 98 4/12/2026
26.4.12.7-rc1 96 4/12/2026
26.1.30.1-rc1 116 1/30/2026
26.1.29.1 113 1/29/2026
26.1.28.5 111 1/28/2026
26.1.28.4 109 1/28/2026
26.1.28.2 107 1/28/2026
26.1.23.6 109 1/23/2026
26.1.21.1 109 1/21/2026
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