Do not use VizierList for -out
@@ -576,7 +576,7 @@ class VizierClass(BaseQuery):
if columns_default:
body['-out'] = '*'
else:
- body['-out'] = columns_out
+ body['-out'] = ','.join(columns_out)
if columns_out:
body['-out.add'] = ','.join(columns_out)
