Struct datafusion::physical_plan::udf::ScalarUDF[][src]

pub struct ScalarUDF {
    pub name: String,
    pub signature: Signature,
    pub return_type: ReturnTypeFunction,
    pub fun: ScalarFunctionImplementation,
}

Logical representation of a UDF.

Fields

name: String

name

signature: Signature

signature

return_type: ReturnTypeFunction

Return type

fun: ScalarFunctionImplementation

actual implementation

Implementations

impl ScalarUDF[src]

pub fn new(
    name: &str,
    signature: &Signature,
    return_type: &ReturnTypeFunction,
    fun: &ScalarFunctionImplementation
) -> Self
[src]

Create a new ScalarUDF

pub fn call(&self, args: Vec<Expr>) -> Expr[src]

creates a logical expression with a call of the UDF This utility allows using the UDF without requiring access to the registry.

Trait Implementations

impl Clone for ScalarUDF[src]

impl Debug for ScalarUDF[src]

impl PartialEq<ScalarUDF> for ScalarUDF[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> Same<T> for T

type Output = T

Should always be Self

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>,