I am trying to get the privacy values (from privacy table) for photos that are on the Wall Album. For photos on a Wall album, the privacy can be set independently for each photo (which is not the case for other albums).
The following query returns empty for all wall photos:
select id, value from privacy where id=<photo_id_here>
Does anyone else have this problem? I have been granted all permissions before trying this query on Graph API Explorer.