src/afs.cc (5 lines):
	- line 1511: // TODO: Customizable.
	- line 1614: // TODO: Report an error
	- line 1674: // TODO: Convert PG error to arrow::Status.
	- line 4270: // TODO: Use before_shmem_exit()
	- line 4280: // TODO: This doesn't work. We need to improve