目录1、缓存介绍1.1、缓存分类1.一级缓存（singletonObjects）2.二级缓存（earlySingletonObjects）3.三级缓存（singletonFactories）1.2、联系2、循环依赖2.1、循环依赖场景2.2、解决流程图示1、A对象缓存查询2、A对
I want to sort by expression, then by some attribute ascending, then by another attribute ascending. Something like this: :order => \"(a < some constant) desc, b asc, c asc\". How to get it?
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