Running in folio-snapshot, the LDP app allows selecting the "public" schema but not "folio_reporting" which contains the derived tables. I do not know if this involves ui-ldp or mod-ldp or both. I checked the permissions in the LDP database, and the "ldp" user appears to have access to the "folio_reporting" tables.
This was originally reported by Vandana Shah from Cornell:
Hi Nassib, one of the bugfest tests (Derived Table Test, #T933068) wants me to select 'folio_reporting' as a schema from the Schema drop-down menu in snapshot, but the only option I have is to select 'public'.