WHERE NOT EXISTS (SELECT 1 FROM binaries b WHERE b.file = f.id)
AND NOT EXISTS (SELECT 1 FROM dsc_files df WHERE df.file = f.id)
AND NOT EXISTS (SELECT 1 FROM changes_pool_files cpf WHERE cpf.fileid = f.id)
WHERE NOT EXISTS (SELECT 1 FROM binaries b WHERE b.file = f.id)
AND NOT EXISTS (SELECT 1 FROM dsc_files df WHERE df.file = f.id)
AND NOT EXISTS (SELECT 1 FROM changes_pool_files cpf WHERE cpf.fileid = f.id)