Created by Jerry Wang, last modified on Sep 08, 2014

scenario: 在ERP d2 is removed from d1.

The logic is handled here:

根据时间降序排序:

ps_equz就包含了ERP latest的parent 信息:

将D2重新assign给D4之后，也能反映出来:

标签：ERP,parent,Jerry,removal,How,d2,d1
来源： https://blog.csdn.net/i042416/article/details/96115925