Struct CastOperation 

pub struct CastOperation<T: CastTarget> { /* private fields */ }

Trait Implementations

impl<T: Clone + CastTarget> Clone for CastOperation<T>

fn clone(&self) -> CastOperation<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<V, T> ElementKernel<Bare<V>> for CastOperation<T>

where V: ValueCast<T> + BareValueDomain, T: CastTarget,

type Emission = Preserving

type OutShape = Bare<V>

fn pipeline<'a>( _graphrecord: &'a GraphRecord, prepared: Self::Prepared<'a>, ) -> QueryResult<ElementPipeline<'a, Bare<V>, Self>>

fn estimate(&self, input: Estimate, _stats: &Stats<'_>) -> Estimate

impl<I, V, T> ElementKernel<Indexed<I, V>> for CastOperation<T>

where I: IndexDomain, V: ValueCast<T>, T: CastTarget,

type Emission = Preserving

type OutShape = Indexed<I, V>

fn pipeline<'a>( _graphrecord: &'a GraphRecord, prepared: Self::Prepared<'a>, ) -> QueryResult<ElementPipeline<'a, Indexed<I, V>, Self>>

fn estimate(&self, input: Estimate, _stats: &Stats<'_>) -> Estimate

impl<T: CastTarget> Explain for CastOperation<T>

fn describe<'__explain>( &'__explain self, formatter: &mut ExplainFormatter<'__explain, '_>, ) -> Result

impl<T: CastTarget> Labeled for CastOperation<T>

const LABEL: &'static str = "Cast"

impl<T: CastTarget> Operation for CastOperation<T>

where Self: Prepare + OperationInputs + Explain,

type Scope = Element

impl<T: CastTarget> OperationInputs for CastOperation<T>

type Inputs<'__inputs, __Primary: '__inputs> = (&'__inputs __Primary,)

fn inputs<'__inputs, __Primary: '__inputs>( &'__inputs self, primary: &'__inputs __Primary, ) -> Self::Inputs<'__inputs, __Primary>

impl<T: CastTarget> OptimizerHints for CastOperation<T>

fn commutes_with_filter(&self) -> bool

fn allows_limit_pushdown(&self) -> bool

fn is_volatile(&self) -> bool

fn empty_rule(&self) -> EmptyRule

impl<T: CastTarget> PlanIdentity for CastOperation<T>

fn identity_eq(&self, other: &Self) -> bool

fn identity_hash<__Hasher: Hasher>(&self, state: &mut __Hasher)

impl<T: CastTarget> PlanInputs for CastOperation<T>

fn inputs(&self) -> Vec<&dyn PlanNode>

fn optimize(&self, session: &Session<'_>) -> Transformed<Self>

impl<T: CastTarget> Prepare for CastOperation<T>

type Prepared<'a> = &'a T where Self: 'a

fn prepare<'a>( &'a self, _graphrecord: &'a GraphRecord, _cache: &'a EvaluationCache<'a>, ) -> QueryResult<Self::Prepared<'a>>