[SPBS]

SQLite doesn't support adding generated stored columns to a table once the table has been created, so you basically have to decide upfront which generated columns must be stored, and then you can't touch it anymore (short of dropping it).

[ComputerGuru]

That’s normal DBA for SQLite - you can’t even rename columns without dropping the table. So not such an obstacle.

[jpcapdevila]

You can rename it now, unless I'm missing something

https://www.sqlite.org/lang_altertable.html