Function postgis_diesel::operators::bb_same

pub fn bb_same<T, U>(left: T, right: U) -> BBSame<T, U::Expression>where
    T: Expression,
    <T as Expression>::SqlType: SqlType,
    U: AsExpression<T::SqlType>,

The ~= operator returns TRUE if the bounding box of geometry/geography A is the same as the bounding box of geometry/geography B.