Method distance_prepared

nodedb-vector/src/rerank/sidecar.rs:136–145

Compute distance from a prepared query to the encoded vector at `id`. Returns `Ok(None)` when the id isn't in the sidecar (lost / not yet encoded); returns the distance otherwise.

(
        &self,
        prepared: &PreparedQuery,
        id: u32,
    )

    /// Returns `Ok(None)` when the id isn't in the sidecar (lost / not yet
    /// encoded); returns the distance otherwise.
    pub fn distance_prepared(
        &self,
        prepared: &PreparedQuery,
        id: u32,
    ) -> Result<Option<f32>, RerankError> {
        match self.encoded.get(&id) {
            None => Ok(None),
            Some(bytes) => self.codec.distance_prepared(prepared, bytes).map(Some),
        }
    }
}

fn codec_name_to_u8(name: CodecName) -> u8 {