How to use "select distinct binary  content from table;" in peewee?
You can do a couple things, but think the simplest would be something like:

``` python
from peewee import *

MyModel.select(Clause(SQL('distinct binary'), MyModel.content))

# select distinct binary t1.content from ...
```

You may need to attach an alias to the clause so peewee knows what attribute the value belongs to:

`, MyModel.content).alias('content')`

How to use "select distinct binary  content from table;" in peewee? I want to use "binary" when "select distinct " .
What's more,I use peewee 2.6.4.
