Trait diesel::types::Foldable

pub trait Foldable {
    type Sum;
    type Avg;
}

Marker trait for types which can be folded for a sum.

Associated Types

type Sum

type Avg

Implementors

• impl<T> Foldable for Nullable<T> where
    T: Foldable + NotNull,  type Sum = T::Sum; type Avg = T::Avg;
• impl Foldable for SmallInt type Sum = Nullable<BigInt>; type Avg = Nullable<Numeric>;
• impl Foldable for Integer type Sum = Nullable<BigInt>; type Avg = Nullable<Numeric>;
• impl Foldable for BigInt type Sum = Nullable<Numeric>; type Avg = Nullable<Numeric>;
• impl Foldable for Float type Sum = Nullable<Float>; type Avg = Nullable<Double>;
• impl Foldable for Double type Sum = Nullable<Double>; type Avg = Nullable<Double>;
• impl Foldable for Numeric type Sum = Nullable<Numeric>; type Avg = Nullable<Numeric>;
• impl Foldable for Interval type Sum = Nullable<Interval>; type Avg = Nullable<Interval>;