[][src]Enum datafusion::physical_plan::functions::Signature

pub enum Signature {
    Variadic(Vec<DataType>),
    VariadicEqual,
    Uniform(usizeVec<DataType>),
    Exact(Vec<DataType>),
    Any(usize),
}

A function's signature, which defines the function's supported argument types.

Variants

Variadic(Vec<DataType>)

arbitrary number of arguments of an common type out of a list of valid types

VariadicEqual

arbitrary number of arguments of an arbitrary but equal type

Uniform(usizeVec<DataType>)

fixed number of arguments of an arbitrary but equal type out of a list of valid types

Exact(Vec<DataType>)

exact number of arguments of an exact type

Any(usize)

fixed number of arguments of arbitrary types

Trait Implementations

impl Clone for Signature[src]

impl Debug for Signature[src]

Auto Trait Implementations

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized
[src]

impl<T> Borrow<T> for T where
    T: ?Sized
[src]

impl<T> BorrowMut<T> for T where
    T: ?Sized
[src]

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
[src]

impl<T> ToOwned for T where
    T: Clone
[src]

type Owned = T

The resulting type after obtaining ownership.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

impl<V, T> VZip<V> for T where
    V: MultiLane<T>,