Struct RawHit 

pub struct RawHit {
    pub id: Vec<u8>,
    pub score: f32,
    pub rerank_applied: bool,
    pub degraded: bool,
    pub metadata: Value,
    pub source_op: SourceOp,
}

One pre-hydration retrieval hit. Operators flow these around between each other; the final stage hydrates them into Hits.

Fields

id: Vec<u8>

Backend-issued id (typically a ULID’s 16 bytes).

score: f32

Score from the producing operator. Vector: cosine similarity. Keyword: min-max normalized BM25. Fused: sum of 1 / (k + rank_i) across branches. Reranked: cross-encoder logit (replaces upstream score, see SourceOp::Reranked).

rerank_applied: bool

Whether a cross-encoder reranker has been applied to this hit. Plan 02-03’s rerank operator sets this to the value of Reranker::applies() after the rerank pass — true when the real BgeRerankerV2M3 ran, false when the NoopReranker passthrough fallback ran (degraded model-missing path per RETRIEVE-06).

degraded: bool

Set true by Plan 02-03’s degraded_fallback operator when this hit came from the fallback (secondary) retriever after the primary errored. Default false — every upstream operator (Vector, Keyword, fuse_rrf, combinators, rerank) leaves it false; only the degraded_fallback operator flips it on the fallback path. Hydration copies this onto Hit::degraded so callers can tell whether the result came from the primary backend or the fallback.

metadata: Value

Free-form metadata from the producing operator. Vector reads it from the backend’s __metadata / payload column. Keyword reads it from the backend’s payload column.

source_op: SourceOp

Which operator produced this hit. RRF fusion groups by this tag.

Trait Implementations

impl Clone for RawHit

fn clone(&self) -> RawHit

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RawHit

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for RawHit

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for RawHit

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

where __S: Serializer,

Serialize this value into the given Serde serializer.