When $id is included I get an unauthorized request error. I would really like to have the $id specified since I'm trying to build a graph data type. Otherwise I would have to do a function call for every single item like before, since bulk operations also don't work with tables with relationships.
TL;DR
When creating a row through a relationship in tablesDB, specifying $id leads to an unauthorized request error. This prevents developers from building a graph data type efficiently. Unfortunately, using a function call for each item or avoiding bulk operations are the current workarounds.