Struct ShufflePushRequest 

pub struct ShufflePushRequest {
    pub shuffle_id: u64,
    pub part: u32,
    pub side: u8,
    pub num_parts: u32,
    pub producer_count: u32,
}

Opening frame of a shuffle push stream.

Carries the routing key (shuffle_id, part, side) plus the partition fan-out (num_parts) and the number of producers (producer_count) the receiver must see an End from before the per-part build barrier is complete.

side is 0 for the build side and 1 for the probe side of a hash join.

Cross-version safety: new optional fields should be added as Option<T>.

Fields

shuffle_id: u64

part: u32

side: u8

0 = build side, 1 = probe side.

num_parts: u32

producer_count: u32

Trait Implementations

impl Archive for ShufflePushRequest

where u64: Archive, u32: Archive, u8: Archive,

const COPY_OPTIMIZATION: CopyOptimization<Self>

An optimization flag that allows the bytes of this type to be copied directly to a writer instead of calling serialize.

type Archived = ArchivedShufflePushRequest

The archived representation of this type.

type Resolver = ShufflePushRequestResolver

The resolver for this type. It must contain all the additional information from serializing needed to make the archived type from the normal type.

fn resolve(&self, resolver: Self::Resolver, out: Place<Self::Archived>)

Creates the archived version of this value at the given position and writes it to the given output.

impl Clone for ShufflePushRequest

fn clone(&self) -> ShufflePushRequest

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ShufflePushRequest

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

Formats the value using the given formatter.

impl<__D: Fallible + ?Sized> Deserialize<ShufflePushRequest, __D> for Archived<ShufflePushRequest>

where u64: Archive, <u64 as Archive>::Archived: Deserialize<u64, __D>, u32: Archive, <u32 as Archive>::Archived: Deserialize<u32, __D>, u8: Archive, <u8 as Archive>::Archived: Deserialize<u8, __D>,

fn deserialize( &self, deserializer: &mut __D, ) -> Result<ShufflePushRequest, <__D as Fallible>::Error>

Deserializes using the given deserializer

impl<__S: Fallible + ?Sized> Serialize<__S> for ShufflePushRequest

where u64: Serialize<__S>, u32: Serialize<__S>, u8: Serialize<__S>,

fn serialize( &self, serializer: &mut __S, ) -> Result<<Self as Archive>::Resolver, <__S as Fallible>::Error>

Writes the dependencies for the object and returns a resolver that can create the archived type.