CSV中返回的Solr多值字段

我正在尝试编写一个Solr查询，该查询类似于使用Hive进行横向分解，并以CSV形式返回结果。我想为多值字段中的每个值返回一行，并复制“父”值

这是我的疑问

http://localhost:8983/solr/select?q=*%3A*&fl=parent,id&wt=csv

返回此输出

parent,id
10,"4100,4435"
11,"376,190,4542"
12,"141,142"

但是，我希望查询结果返回如下内容：

parent,id
10,4100
10,4435
11,376
11,190
11,4542
12,141
12,142

---

这在Solr中是可能的吗？

将数据反规范化并使用Solr

像这样存储数据：

parent,id,id_group
10,"4100","4100,4435"
10,"4435","4100,4435"
11,"376","376,190,4542"
11,"190","376,190,4542"
11,"4542","376,190,4542"
12,"141","141,142"
12,"142","141,142"

parent,id
10,4100
10,4435
11,376
11,190
11,4542
12,141
12,142

parent,id_group
10,"4100,4435"
11,"376,190,4542"
12,"141,142"

---

现在，当您想要为每个多值字段指定一行时

查询：

结果：

parent,id,id_group
10,"4100","4100,4435"
10,"4435","4100,4435"
11,"376","376,190,4542"
11,"190","376,190,4542"
11,"4542","376,190,4542"
12,"141","141,142"
12,"142","141,142"

parent,id
10,4100
10,4435
11,376
11,190
11,4542
12,141
12,142

parent,id_group
10,"4100,4435"
11,"376,190,4542"
12,"141,142"

---

当您要将数据分组为

查询：

结果：

parent,id,id_group
10,"4100","4100,4435"
10,"4435","4100,4435"
11,"376","376,190,4542"
11,"190","376,190,4542"
11,"4542","376,190,4542"
12,"141","141,142"
12,"142","141,142"

parent,id
10,4100
10,4435
11,376
11,190
11,4542
12,141
12,142

parent,id_group
10,"4100,4435"
11,"376,190,4542"
12,"141,142"