Struct mz_compute_types::plan::join::delta_join::DeltaStagePlan
source · pub struct DeltaStagePlan {
pub lookup_relation: usize,
pub stream_key: Vec<MirScalarExpr>,
pub stream_thinning: Vec<usize>,
pub lookup_key: Vec<MirScalarExpr>,
pub closure: JoinClosure,
}
Expand description
A delta query stage performs a stream lookup into an arrangement.
Fields§
§lookup_relation: usize
The relation index into which we will look up.
stream_key: Vec<MirScalarExpr>
The key expressions to use for the streamed relation.
While this starts as a stream of the source relation, it evolves through multiple lookups and ceases to be the same thing, hence the different name.
stream_thinning: Vec<usize>
The thinning expression to apply on the value part of the stream
lookup_key: Vec<MirScalarExpr>
The key expressions to use for the lookup relation.
closure: JoinClosure
The closure to apply to the concatenation of columns of the stream and lookup relations.
Trait Implementations§
source§impl Arbitrary for DeltaStagePlan
impl Arbitrary for DeltaStagePlan
§type Parameters = ()
type Parameters = ()
The type of parameters that
arbitrary_with
accepts for configuration
of the generated Strategy
. Parameters must implement Default
.§type Strategy = BoxedStrategy<DeltaStagePlan>
type Strategy = BoxedStrategy<DeltaStagePlan>
The type of
Strategy
used to generate values of type Self
.source§fn arbitrary_with(_: Self::Parameters) -> Self::Strategy
fn arbitrary_with(_: Self::Parameters) -> Self::Strategy
source§impl Clone for DeltaStagePlan
impl Clone for DeltaStagePlan
source§fn clone(&self) -> DeltaStagePlan
fn clone(&self) -> DeltaStagePlan
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresource§impl Debug for DeltaStagePlan
impl Debug for DeltaStagePlan
source§impl<'de> Deserialize<'de> for DeltaStagePlan
impl<'de> Deserialize<'de> for DeltaStagePlan
source§fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
Deserialize this value from the given Serde deserializer. Read more
source§impl DisplayText<PlanRenderingContext<'_, Plan>> for DeltaStagePlan
impl DisplayText<PlanRenderingContext<'_, Plan>> for DeltaStagePlan
source§impl Ord for DeltaStagePlan
impl Ord for DeltaStagePlan
source§fn cmp(&self, other: &DeltaStagePlan) -> Ordering
fn cmp(&self, other: &DeltaStagePlan) -> Ordering
1.21.0 · source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
Compares and returns the maximum of two values. Read more
source§impl PartialEq for DeltaStagePlan
impl PartialEq for DeltaStagePlan
source§impl PartialOrd for DeltaStagePlan
impl PartialOrd for DeltaStagePlan
source§impl RustType<ProtoDeltaStagePlan> for DeltaStagePlan
impl RustType<ProtoDeltaStagePlan> for DeltaStagePlan
source§fn into_proto(&self) -> ProtoDeltaStagePlan
fn into_proto(&self) -> ProtoDeltaStagePlan
Convert a
Self
into a Proto
value.source§fn from_proto(proto: ProtoDeltaStagePlan) -> Result<Self, TryFromProtoError>
fn from_proto(proto: ProtoDeltaStagePlan) -> Result<Self, TryFromProtoError>
source§fn into_proto_owned(self) -> Proto
fn into_proto_owned(self) -> Proto
A zero clone version of
Self::into_proto
that types can
optionally implement, otherwise, the default implementation
delegates to Self::into_proto
.source§impl Serialize for DeltaStagePlan
impl Serialize for DeltaStagePlan
impl Eq for DeltaStagePlan
impl StructuralPartialEq for DeltaStagePlan
Auto Trait Implementations§
impl Freeze for DeltaStagePlan
impl RefUnwindSafe for DeltaStagePlan
impl Send for DeltaStagePlan
impl Sync for DeltaStagePlan
impl Unpin for DeltaStagePlan
impl UnwindSafe for DeltaStagePlan
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