Since Lightning doesn't periodically update published iCals, I've created a script to do it myself by querying the sqlite database. No problem, except that now I have a user with two calendars. I can find both cal_id's by "select distinct cal_id from cal_events", which gives me two 36 bytes strings, but which is for which calendar? I can figure it out by comparing my script output with the original published calendars, but that is time consuming and will require my manual intervention whenever a person happens to publish 2 or more calendars.

Is there something in the database, or some config file that correlates calendar name with cal_id? Of course, there must be or Lightning wouldn't be able to find the calendar data by calendar name! I guess the question is, where is is this kept and is it accessible by me?