Struct RawFact 

pub struct RawFact {
    pub id: u64,
    pub payload: String,
    pub source_vector: Vec<f32>,
}

One fact as the rebuild will need to re-create it.

Why the source vector is here, having once been left out deliberately

This type used to carry id and payload only, on the stated grounds that “the old vector is recomputed by the new embedder, and carrying it would only invite writing it back”. That was written when a rebuild had one regime. #1815 arbitrated two: reuse the source vectors where compatibility is proven, re-embed everywhere else. A type that cannot carry the source vector cannot express the first, so the reasoning no longer held and the comment asserting it was describing a decision that had been reversed.

The field is named source_vector rather than vector for the reason the old comment was right about: it is the vector of the model being migrated from, and writing it back is only ever legitimate against a Compatibility::Match. What reinsert writes is always the vector its caller passed, never this one by default.

Fields

id: u64

The id the fact must keep. Not a suggestion.

payload: String

The whole stored payload, reserved keys included — content and every _veles_* key travel here verbatim.

source_vector: Vec<f32>

The vector as the SOURCE store holds it, at the source’s width.

Read out on every enumeration because the cost is a clone of something the engine already materialised, and a second read path taken only under reuse would be a path the reembed tests never exercise.

Trait Implementations

impl Clone for RawFact

fn clone(&self) -> RawFact

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RawFact

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

Formats the value using the given formatter.

impl PartialEq for RawFact

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for RawFact