Thanks Lindsay. The only other table that I found was nr_com, which seems to also show the relationship. I found that by running a pdm_logstat -f sqlclass.c MILESTONE, which will show the insert queries in the logs. I added a couple of contacts to a CI, and the query showed the following:
(INSERT INTO nr_com ( attr_name, com_comment, com_dt, com_par_id, com_userid, mdr_class, mdr_name, new_value, old_value, writer_id, id ) VALUES ( ? , ? , ? , ? , ? , ? , ? , ? , ? , ? , ? )) Input (<attr_name:string>Assigned Contact|<com_comment:string>Insert Assigned Contact|<com_dt:time>06/14/2016 09:59:17|<com_par_id:uuid>0B164C4F382DC14882E730E17B9B0E37|<com_userid:string>ServiceDesk|<mdr_class:string>(NULL)|<mdr_name:string>(NULL)|<new_value:string>Clark, Angelina |<old_value:string>(NULL)|<writer_id:uuid>7AE9734B3FF295469A211AE4ABBA6C01|<id:int>400151)
When I look at SQL I see this:
So maybe its also nr_com that you might be looking for?
See which one works better for you.
Jon