[−][src]Struct datafusion::physical_plan::expressions::Literal

pub struct Literal { /* fields omitted */ }

Represents a non-null literal value

Implementations

`impl Literal`[src]

`pub fn new(value: ScalarValue) -> Self`[src]

Create a literal value expression

`pub fn value(&self) -> &ScalarValue`[src]

Get the scalar value

Trait Implementations

`impl Debug for Literal`[src]

`fn fmt(&self, f: &mut Formatter<'_>) -> Result`[src]

`impl Display for Literal`[src]

`fn fmt(&self, f: &mut Formatter<'_>) -> Result`[src]

`impl PhysicalExpr for Literal`[src]

`fn as_any(&self) -> &dyn Any`[src]

Return a reference to Any that can be used for downcasting

`fn data_type(&self, _input_schema: &Schema) -> Result<DataType>`[src]

`fn nullable(&self, _input_schema: &Schema) -> Result<bool>`[src]

`fn evaluate(&self, _batch: &RecordBatch) -> Result<ColumnarValue>`[src]

Auto Trait Implementations

`impl RefUnwindSafe for Literal`[src]

`impl Send for Literal`[src]

`impl Sync for Literal`[src]

`impl Unpin for Literal`[src]

`impl UnwindSafe for Literal`[src]

Blanket Implementations

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

`pub fn type_id(&self) -> TypeId`[src]

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

`pub fn borrow(&self) -> &T`[src]

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

`pub fn borrow_mut(&mut self) -> &mut T`[src]

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

`pub fn from(t: T) -> T`[src]

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

`pub fn into(self) -> U`[src]

`impl<T> Pointable for T`

`pub const ALIGN: usize`

`type Init = T`

The type for initializers.

`pub unsafe fn init(init: <T as Pointable>::Init) -> usize`

`pub unsafe fn deref<'a>(ptr: usize) -> &'a T`

`pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T`

`pub unsafe fn drop(ptr: usize)`

`impl<T> Same<T> for T`

`type Output = T`

Should always be Self

`impl<T> ToString for T where T: Display + ?Sized,` [src]

`pub default fn to_string(&self) -> String`[src]

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

`type Error = Infallible`

The type returned in the event of a conversion error.

`pub fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>`[src]

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

`type Error = >::Error`

The type returned in the event of a conversion error.

`pub fn try_into(self) -> Result<U, >::Error>`[src]

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

`pub fn vzip(self) -> V`

[−][src]Struct datafusion::physical_plan::expressions::Literal

Implementations

impl Literal[src]

pub fn new(value: ScalarValue) -> Self[src]

pub fn value(&self) -> &ScalarValue[src]

Trait Implementations

impl Debug for Literal[src]

fn fmt(&self, f: &mut Formatter<'_>) -> Result[src]

impl Display for Literal[src]

fn fmt(&self, f: &mut Formatter<'_>) -> Result[src]

impl PhysicalExpr for Literal[src]

fn as_any(&self) -> &dyn Any[src]

fn data_type(&self, _input_schema: &Schema) -> Result<DataType>[src]

fn nullable(&self, _input_schema: &Schema) -> Result<bool>[src]

fn evaluate(&self, _batch: &RecordBatch) -> Result<ColumnarValue>[src]

Auto Trait Implementations

impl RefUnwindSafe for Literal[src]

impl Send for Literal[src]

impl Sync for Literal[src]

impl Unpin for Literal[src]

impl UnwindSafe for Literal[src]

Blanket Implementations

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

pub fn type_id(&self) -> TypeId[src]

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

pub fn borrow(&self) -> &T[src]

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

pub fn borrow_mut(&mut self) -> &mut T[src]

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

pub fn from(t: T) -> T[src]

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

pub fn into(self) -> U[src]

impl<T> Pointable for T

pub const ALIGN: usize

type Init = T

pub unsafe fn init(init: <T as Pointable>::Init) -> usize

pub unsafe fn deref<'a>(ptr: usize) -> &'a T

pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

pub unsafe fn drop(ptr: usize)

impl<T> Same<T> for T

type Output = T

impl<T> ToString for T where T: Display + ?Sized, [src]

pub default fn to_string(&self) -> String[src]

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

type Error = Infallible

pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>[src]

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

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

pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>[src]

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

pub fn vzip(self) -> V

`impl Literal`[src]

`pub fn new(value: ScalarValue) -> Self`[src]

`pub fn value(&self) -> &ScalarValue`[src]

`impl Debug for Literal`[src]

`fn fmt(&self, f: &mut Formatter<'_>) -> Result`[src]

`impl Display for Literal`[src]

`fn fmt(&self, f: &mut Formatter<'_>) -> Result`[src]

`impl PhysicalExpr for Literal`[src]

`fn as_any(&self) -> &dyn Any`[src]

`fn data_type(&self, _input_schema: &Schema) -> Result<DataType>`[src]

`fn nullable(&self, _input_schema: &Schema) -> Result<bool>`[src]

`fn evaluate(&self, _batch: &RecordBatch) -> Result<ColumnarValue>`[src]

`impl RefUnwindSafe for Literal`[src]

`impl Send for Literal`[src]

`impl Sync for Literal`[src]

`impl Unpin for Literal`[src]

`impl UnwindSafe for Literal`[src]

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

`pub fn type_id(&self) -> TypeId`[src]

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

`pub fn borrow(&self) -> &T`[src]

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

`pub fn borrow_mut(&mut self) -> &mut T`[src]

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

`pub fn from(t: T) -> T`[src]

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

`pub fn into(self) -> U`[src]

`impl<T> Pointable for T`

`pub const ALIGN: usize`

`type Init = T`

`pub unsafe fn init(init: <T as Pointable>::Init) -> usize`

`pub unsafe fn deref<'a>(ptr: usize) -> &'a T`

`pub unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T`

`pub unsafe fn drop(ptr: usize)`

`impl<T> Same<T> for T`

`type Output = T`

`impl<T> ToString for T where T: Display + ?Sized,` [src]

`pub default fn to_string(&self) -> String`[src]

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

`type Error = Infallible`

`pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>`[src]

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

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

`pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>`[src]

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

`pub fn vzip(self) -> V`