Struct ShuffleProduceRequest 

pub struct ShuffleProduceRequest {
    pub shuffle_id: u64,
    pub side: u8,
    pub num_parts: u32,
    pub producer_count: u32,
    pub keys: Vec<String>,
    pub part_node_map: Vec<PartNodeEntry>,
    pub plan_bytes: Vec<u8>,
    pub tenant_id: u64,
    pub database_id: u64,
    pub deadline_remaining_ms: u64,
    pub trace_id: [u8; 16],
    pub descriptor_versions: Vec<DescriptorVersionEntry>,
}

Cross-node shuffle PRODUCER trigger (E4a).

A coordinator sends this to a producer node to make it execute a LOCAL scan fragment (plan_bytes), hash-partition each output row on keys, and fan the rows out to the per-part owners (part_node_map) as ShufflePush streams — one ShufflePushEnd to EVERY part for this side so each receiver’s per-part barrier reaches producer_count. The producer replies with exactly one ShuffleProduceResponse; it never streams the scanned rows back.

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

The plan_bytes / tenant_id / database_id / deadline_remaining_ms / trace_id / descriptor_versions fields mirror ExecuteRequest so the producer can reuse the existing local streaming-execution prologue verbatim.

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

Fields

shuffle_id: u64

side: u8

0 = build side, 1 = probe side — the local side this producer scans.

num_parts: u32

producer_count: u32

How many producers will End each (part, side); forwarded into every emitted ShufflePushRequest so receivers size their build barrier.

keys: Vec<String>

Local-side join field names; each output row is hashed on these.

part_node_map: Vec<PartNodeEntry>

part -> owning node id (coordinator-computed, sorted by part).

plan_bytes: Vec<u8>

Encoded PhysicalPlan of the local scan fragment to execute.

tenant_id: u64

database_id: u64

deadline_remaining_ms: u64

trace_id: [u8; 16]

descriptor_versions: Vec<DescriptorVersionEntry>

Trait Implementations

impl Archive for ShuffleProduceRequest

where u64: Archive, u8: Archive, u32: Archive, Vec<String>: Archive, Vec<PartNodeEntry>: Archive, Vec<u8>: Archive, [u8; 16]: Archive, Vec<DescriptorVersionEntry>: 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 = ArchivedShuffleProduceRequest

The archived representation of this type.

type Resolver = ShuffleProduceRequestResolver

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 ShuffleProduceRequest

fn clone(&self) -> ShuffleProduceRequest

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ShuffleProduceRequest

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

Formats the value using the given formatter.

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

where u64: Archive, <u64 as Archive>::Archived: Deserialize<u64, __D>, u8: Archive, <u8 as Archive>::Archived: Deserialize<u8, __D>, u32: Archive, <u32 as Archive>::Archived: Deserialize<u32, __D>, Vec<String>: Archive, <Vec<String> as Archive>::Archived: Deserialize<Vec<String>, __D>, Vec<PartNodeEntry>: Archive, <Vec<PartNodeEntry> as Archive>::Archived: Deserialize<Vec<PartNodeEntry>, __D>, Vec<u8>: Archive, <Vec<u8> as Archive>::Archived: Deserialize<Vec<u8>, __D>, [u8; 16]: Archive, <[u8; 16] as Archive>::Archived: Deserialize<[u8; 16], __D>, Vec<DescriptorVersionEntry>: Archive, <Vec<DescriptorVersionEntry> as Archive>::Archived: Deserialize<Vec<DescriptorVersionEntry>, __D>,

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

Deserializes using the given deserializer

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

where u64: Serialize<__S>, u8: Serialize<__S>, u32: Serialize<__S>, Vec<String>: Serialize<__S>, Vec<PartNodeEntry>: Serialize<__S>, Vec<u8>: Serialize<__S>, [u8; 16]: Serialize<__S>, Vec<DescriptorVersionEntry>: 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.