There's a very strong use case for binary data: bitmaps. You can implement a bloom filter or a set as a bitmap field on a relation, and then perform quick searc

There's a very strong use case for binary data: bitmaps. You can implement a bloom filter or a set as a bitmap field on a relation, and then perform quick searching and joining using the bitwise comparison operators. This is my main reason for wanting binary field support in Django—at the moment Django attempts to decode every string as UTF-8.