How to query with bitwise op?

Hi, I have some problem to write query:
There is a field `tag` with integer type. How to write query like raw sql `select * from table_name where tag & 16 = 16` ?

update:
find a way:
```
func(s *sql.Selector) {
s.Where(sql.ExprP("tag & ? = ?", 16, 16))
}
```

any better answer?