Struct ella_engine::lazy::Lazy

pub struct Lazy { /* private fields */ }

Implementations

impl Lazy

pub fn new(plan: Plan, backend: Arc<dyn LazyBackend + 'static>) -> Self

pub async fn execute(self) -> Result<DataFrame>

pub async fn stream(self) -> Result<LazyStream>

pub async fn rows<R: RowFormat>(self) -> Result<RowStream<R>>

pub fn col<T, S>(&self, col: &str) -> Result<Column<T, S>>where T: TensorValue, S: Shape,

pub fn col1<T: TensorValue>(&self, col: &str) -> Result<Column<T, Const<1>>>

pub fn col2<T: TensorValue>(&self, col: &str) -> Result<Column<T, Const<2>>>

pub fn col3<T: TensorValue>(&self, col: &str) -> Result<Column<T, Const<3>>>

pub fn col_dyn<T: TensorValue>(&self, col: &str) -> Result<Column<T, Dyn>>

pub fn create_view<'a>(self, table: impl Into<TableRef<'a>>) -> LazyToView

pub fn plan(&self) -> &Plan

Trait Implementations

impl Clone for Lazy

fn clone(&self) -> Lazy

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Lazy

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

Formats the value using the given formatter.

impl<T, S> From<Column<T, S>> for Lazy

fn from(value: Column<T, S>) -> Self

Converts to this type from the input type.