Would this have any particular benefits other than possibly being more "pythonic"? There are 2 "joins" going on here: column names and types are joined by a ":", and each of those pairs are joined by a ",".

Would you prefer:

```
schema_list = []
for row in enumerate(schema_full):
    schema_list.append(row['name'] + ':' + row['type'])
schema = ','.join(schema_list)
```