Struct FlatVectorData 

pub struct FlatVectorData;

Flat vector binary format helpers for writing.

Binary format: [magic(u32)][dim(u32)][num_vectors(u32)][vectors: N×dim×f32][doc_ids: N×(u32+u16)]

Reading is handled by LazyFlatVectorData which loads only doc_ids into memory and accesses vector data lazily via mmap-backed range reads.

Implementations

impl FlatVectorData

pub fn write_binary_header( dim: usize, num_vectors: usize, writer: &mut dyn Write, ) -> Result<()>

Write the binary header (magic + dim + num_vectors) to a writer.

pub fn serialized_binary_size(dim: usize, num_vectors: usize) -> usize

Compute the serialized size without actually serializing.

pub fn serialize_binary_from_flat_streaming( dim: usize, flat_vectors: &[f32], original_dim: usize, doc_ids: &[(u32, u16)], writer: &mut dyn Write, ) -> Result<()>

Stream directly from flat f32 storage to a writer (zero-buffer serialization).

flat_vectors is contiguous storage of dim*n floats. original_dim is the dimension in flat_vectors (may differ from dim for MRL).