[FEATURE REQUEST] Run SQL file using 'cron.schedule'

Hello,

I was wondering whether it'd be feasible to support running SQL files from `cron.schedule`. I have multiple chained commands I wanted to execute in one go, and to support arbitrary flexibility, I wanted to package that up in a SQL file. I'm having a difficult time finding a way to run SQL files from within a SQL command, and I thought that presented an opportunity for a third-party function to have that functionality. I would definitely like to use that feature!

Thanks
Ying