Struct VerticalBP128Block 

pub struct VerticalBP128Block {
    pub doc_data: Vec<u8>,
    pub doc_bit_width: u8,
    pub tf_data: Vec<u8>,
    pub tf_bit_width: u8,
    pub first_doc_id: u32,
    pub last_doc_id: u32,
    pub num_docs: u16,
    pub max_tf: u32,
    pub max_block_score: f32,
}

A single SIMD-BP128 block with metadata

Fields

doc_data: Vec<u8>

Vertically-packed delta-encoded doc_ids (true vertical bit-interleaved layout)

doc_bit_width: u8

Bit width for doc deltas

tf_data: Vec<u8>

Vertically-packed term frequencies (tf - 1)

tf_bit_width: u8

Bit width for term frequencies

first_doc_id: u32

First doc_id in block (absolute)

last_doc_id: u32

Last doc_id in block (absolute)

num_docs: u16

Number of docs in this block

max_tf: u32

Maximum term frequency in block

max_block_score: f32

Maximum BM25 score upper bound for BlockMax WAND

Implementations

impl VerticalBP128Block

pub fn serialize<W: Write>(&self, writer: &mut W) -> Result<()>

Serialize block

pub fn deserialize<R: Read>(reader: &mut R) -> Result<Self>

Deserialize block

pub fn decode_doc_ids(&self) -> Vec<u32>

Decode doc_ids from this block

pub fn decode_doc_ids_into(&self, output: &mut [u32]) -> usize

Decode doc_ids into a pre-allocated buffer (avoids allocation)

pub fn decode_term_freqs(&self) -> Vec<u32>

Decode term frequencies from this block

pub fn decode_term_freqs_into(&self, output: &mut [u32]) -> usize

Decode term frequencies into a pre-allocated buffer (avoids allocation)

Trait Implementations

impl Clone for VerticalBP128Block

fn clone(&self) -> VerticalBP128Block

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for VerticalBP128Block

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

Formats the value using the given formatter.