Struct mz_transform::reduce_elision::ReduceElision

source · [−]

pub struct ReduceElision;

Expand description

Removes Reduce when the input has as unique keys the keys of the reduce.

Implementations

source

impl ReduceElision

source

pub fn action(
&self,
relation: &mut MirRelationExpr
) -> Result<(), TransformError>

Removes Reduce when the input has as unique keys the keys of the reduce.

Trait Implementations

source

impl Debug for ReduceElision

source

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

Formats the value using the given formatter. Read more

source

impl Transform for ReduceElision

source

fn transform(
 &self,
 relation: &mut MirRelationExpr,
 _: TransformArgs<'_>
) -> Result<(), TransformError>

Transform a relation into a functionally equivalent relation.

source

fn debug(&self) -> String

A string describing the transform. Read more

Auto Trait Implementations

impl RefUnwindSafe for ReduceElision

impl Send for ReduceElision

impl Sync for ReduceElision

impl Unpin for ReduceElision

impl UnwindSafe for ReduceElision

Blanket Implementations

source

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

source

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

source

impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

source

impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

source

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

source

impl<T> FutureExt for T

source

fn with_context(self, otel_cx: Context) -> WithContext<Self>

Attaches the provided Context to this type, returning a WithContext wrapper. Read more

source

fn with_current_context(self) -> WithContext<Self>

Attaches the current Context to this type, returning a WithContext wrapper. Read more

source

impl<T> Instrument for T

source

fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

source

fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

source

impl<T, U> Into for T where
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

source

impl<T> IntoRequest<T> for T

source

fn into_request(self) -> Request<T>

Wrap the input message T in a tonic::Request

source

impl<T> Pointable for T

source

const ALIGN: usize = mem::align_of::()

The alignment of pointer.

type Init = T

The type for initializers.

source

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

Initializes a with the given initializer. Read more

source

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

Dereferences the given pointer. Read more

source

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

Mutably dereferences the given pointer. Read more

source

unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more

source

impl<T> Same<T> for T

type Output = T

Should always be Self

source

impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

source

impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

source

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

source

fn vzip(self) -> V

source

impl<T> WithSubscriber for T

source

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

source

fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more

Struct mz_transform::reduce_elision::ReduceElision

Implementations

impl ReduceElision

pub fn action( &self, relation: &mut MirRelationExpr) -> Result<(), TransformError>

Trait Implementations

impl Debug for ReduceElision

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

impl Transform for ReduceElision

fn transform( &self, relation: &mut MirRelationExpr, _: TransformArgs<'_>) -> Result<(), TransformError>

fn debug(&self) -> String

Auto Trait Implementations

impl RefUnwindSafe for ReduceElision

impl Send for ReduceElision

impl Sync for ReduceElision

impl Unpin for ReduceElision

impl UnwindSafe for ReduceElision

Blanket Implementations

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

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<T> From<T> for T

fn from(t: T) -> T

impl<T> FutureExt for T

fn with_context(self, otel_cx: Context) -> WithContext<Self>

fn with_current_context(self) -> WithContext<Self>

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self>

fn in_current_span(self) -> Instrumented<Self>

impl<T, U> Into<U> for T where U: From<T>,

fn into(self) -> U

impl<T> IntoRequest<T> for T

fn into_request(self) -> Request<T>

impl<T> Pointable for T

const ALIGN: usize = mem::align_of::()

type Init = T

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

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

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

unsafe fn drop(ptr: usize)

impl<P, R> ProtoType<R> for P where R: RustType<P>,

fn into_rust(self) -> Result<R, TryFromProtoError>

fn from_rust(rust: &R) -> P

impl<T> Same<T> for T

type Output = T

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

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

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

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

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

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

fn vzip(self) -> V

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where S: Into<Dispatch>,

fn with_current_subscriber(self) -> WithDispatch<Self>

pub fn action(
&self,
relation: &mut MirRelationExpr
) -> Result<(), TransformError>

fn transform(
&self,
relation: &mut MirRelationExpr,
_: TransformArgs<'_>
) -> Result<(), TransformError>

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

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<T, U> Into<U> for T where
U: From<T>,

impl<P, R> ProtoType<R> for P where
R: RustType<P>,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

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

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> where
S: Into<Dispatch>,