acheck to see if mode exists in the dataset in the first place

transfer-gpfs-with-s5cmd/fpart-db.py

@@ -34,7 +34,8 @@ def main():
     ddf = dd.read_parquet(input_parquet)
     ddf = ddf.loc[ddf['path'].str.startswith(filter)].sort_values('path')
 
-    ddf = ddf.loc[~ddf['mode'].str.startswith('d')]
+    if 'mode' in ddf.columns:
+        ddf = ddf.loc[~ddf['mode'].str.startswith('d')]
 
     ddf['cmd'] = ddf['path'].map(lambda x: create_sync_cmd(x, filter=filter, dest=dest), meta=str)