Struct mz_compute_client::plan::join::delta_join::DeltaPathPlan

pub struct DeltaPathPlan {
    pub source_relation: usize,
    pub source_key: Vec<MirScalarExpr>,
    pub initial_closure: JoinClosure,
    pub stage_plans: Vec<DeltaStagePlan>,
    pub final_closure: Option<JoinClosure>,
}

A delta query path is implemented by a sequences of stages,

Fields

source_relation: usize

The relation whose updates seed the dataflow path.

source_key: Vec<MirScalarExpr>

The key we expect the source relation to be arranged by.

initial_closure: JoinClosure

An initial closure to apply before any stages.

stage_plans: Vec<DeltaStagePlan>

A sequence of stages to apply one after the other.

final_closure: Option<JoinClosure>

A concluding closure to apply after the last stage.

Values of None indicate the identity closure.

Trait Implementations

impl Arbitrary for DeltaPathPlan

type Parameters = ()

The type of parameters that arbitrary_with accepts for configuration of the generated Strategy. Parameters must implement Default.

type Strategy = BoxedStrategy<DeltaPathPlan>

The type of Strategy used to generate values of type Self.

fn arbitrary_with(_: Self::Parameters) -> Self::Strategy

Generates a Strategy for producing arbitrary values of type the implementing type (Self). The strategy is passed the arguments given in args.

fn arbitrary() -> Self::Strategy

Generates a Strategy for producing arbitrary values of type the implementing type (Self).

impl Clone for DeltaPathPlan

fn clone(&self) -> DeltaPathPlan

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for DeltaPathPlan

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for DeltaPathPlan

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl DisplayText<PlanRenderingContext<'_, Plan<Timestamp>>> for DeltaPathPlan

fn fmt_text( &self, f: &mut Formatter<'_>, ctx: &mut PlanRenderingContext<'_, Plan> ) -> Result

impl PartialEq<DeltaPathPlan> for DeltaPathPlan

fn eq(&self, other: &DeltaPathPlan) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl RustType<ProtoDeltaPathPlan> for DeltaPathPlan

fn into_proto(&self) -> ProtoDeltaPathPlan

Convert a Self into a Proto value.

fn from_proto(proto: ProtoDeltaPathPlan) -> Result<Self, TryFromProtoError>

Consume and convert a Proto back into a Self value.

impl Serialize for DeltaPathPlan

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for DeltaPathPlan

impl StructuralEq for DeltaPathPlan

impl StructuralPartialEq for DeltaPathPlan