Solution: It turns out the issue is not the schema reading in, but the fact that I am writing to Delta tables, which do not currently support spaces. So, I need to transform them prior to dumping. I've been following a pattern of reading in raw data, which has spaces in the fields, then transforming after the fact. Since this is a highly nested structure (MongoDB), using renaming columns individually will be difficult. Any thoughts on the best practice? Should I just start transforming the raw data immediately?