HQL select 一个实体的属性通过连接两个表

Question

我有两个table

first table (people):id ,name;
second table (relation):id,parent_id,child_id

第二个 table 包含第一个 table 对象之间的父链接。很简单))

通过此查询，我从 tables

中获取了所有字段

from People AS people , Relation  as relation WHERE  relation.parent_id=XXX AND people.id=relation.child_id

如何只从第一个 table 获取字段？

Answer 1

select people from People AS people , Relation  as relation WHERE  relation.parent_id=XXX AND people.id=relation.child_id