Struct SchemaLayout 

pub struct SchemaLayout { /* private fields */ }

Pre-computed layout for binary encoding/decoding

Implementations

impl SchemaLayout

pub fn new( columns: Vec<ColumnLayout>, row_stride: usize, null_mask_size: usize, ) -> Self

Create a SchemaLayout directly from components

pub fn from_schema(schema: &Table) -> Self

Create a SchemaLayout from a table schema

pub fn from_schemas(schemas: &[&Table]) -> Self

Create a SchemaLayout by merging multiple table schemas (for JOIN results). Columns are concatenated in order: left table columns, then right table columns, etc. Right-side columns are marked nullable since LEFT JOIN can produce NULLs.

pub fn from_projection(schema: &Table, column_names: &[String]) -> Self

Create a SchemaLayout from projected columns

pub fn columns(&self) -> &[ColumnLayout]

Get the columns

pub fn row_stride(&self) -> usize

Get row stride (total bytes per row)

pub fn null_mask_size(&self) -> usize

Get null mask size in bytes

pub fn calculate_fixed_size(&self, row_count: usize) -> usize

Calculate required buffer size for N rows (header + fixed section only)

Trait Implementations

impl Clone for SchemaLayout

fn clone(&self) -> SchemaLayout

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SchemaLayout

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

Formats the value using the given formatter.