Is there a common name for JSON fields in relational tables?

Question

Database

Good afternoon,
There is an STI table that implements the storage of several types of records. Each type can be accompanied by its own set of additional data, which is not that much, but not enough. According to these additional the data does not need to be sampled, so it was decided to violate the first normal form and store all the extra. data in JSON format. The first option that comes to mind is to name the column `extra`, but maybe there are some common names?
Thank you.