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Example code of sllhsmile/wherehasin

Informations about the package wherehasin

# Hyperf WHERE HAS IN

Build Status

Hyperf wherehasin是一个使用 IN 子查询优化关联过滤的 Hyperf ORM 扩展包，适用于 Hyperf 3.0+ 和 PHP 8.1+。

whereHasIn 与原生 whereHas 的执行计划不同。仅在已评估索引与数据分布、确实需要 IN 子查询时使用；关联回调可以添加筛选条件，但其 select() 不会改变扩展为关联键生成的单列子查询。

环境

安装

简介

Hyperf的关联关系查询whereHas在日常开发中给我们带来了极大的便利，但是在主表数据量比较多的时候会有比较严重的性能问题，主要是因为whereHas用了where exists (select * ...)这种方式去查询关联数据。

通过这个扩展包提供的whereHasIn方法，可以把语句转化为where id in (select xxx.id ...)的形式，从而提高查询性能，下面我们来做一个简单的对比：

当主表数据量较多的情况下，where id in会有明显的性能提升；当主表数据量较少的时候，两者性能相差无几。

主表test_users写入130002条数据，关联表test_user_profiles写入1002条数据，查询代码如下

最终耗时如下，可以看出性能相差还是不小的，如果数据量更多一些，这个差距还会更大

使用

whereHasIn

此方法已支持Hyperf ORM中的所有关联关系，可以替代whereHas

orWhereHasIn

多级关联关系

需要注意的是，如果是BelongsTo类型的关联关系，使用whereHasIn时使用的不是主键，而是外键

whereHasMorphIn

此方法已支持Hyperf ORM中的所有关联关系，可以替代whereHasMorph

测试

安装开发依赖后执行：

集成测试默认跳过真实数据库。要验证跨连接关系、回调 select() 和通配 Morph 的 NULL 类型处理，可在本地 MySQL 上显式运行：

测试仅创建并在结束时删除 wherehasin_test_* 临时表。

特别鸣谢 https://github.com/jqhph/laravel-wherehasin

License

The MIT License (MIT).

All versions of wherehasin with dependencies

PHP Build Version
Package Version
Requires php Version >=8.1
hyperf/config Version ^3.0@dev
hyperf/database Version ^3.0@dev
hyperf/stringable Version ^3.0@dev
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