Can you help me understand the DB Field points_id

In EasySocial's points history database table there is a 'points_id' column.

Can you tell me how those points_id numbers can allocated when points are uploaded via CSV file, or created by points rule?

Why I'm asking is I'm trying to work out if I can use EasySocial points system for a project - but I need to be able to report on a certain type of points - this points_id might be what I need.

Thanks!