Yes there is a LF with a single primary unique key.
I always use SQL first if possible.
But this takes an hour to run in SQL, where RPG would run in a few
seconds - because I would read sequentially thru the tiny file and
then chain to the giant file.
It seems odd that SQL cant figure out to read sequentially thru the
tiny file and then link to the giant file where the keys match.
I was hoping I could force or nudge SQL to read the tiny file as primary.