Struct IntersectBuild 

pub struct IntersectBuild { /* private fields */ }

One build side of a WCO intersect: bound value -> sorted adjacency rows.

Implementations

impl IntersectBuild

pub fn new(bound_col: usize, intersect_col: usize) -> Self

Create a build side reading the bound value at bound_col and the intersect value at intersect_col from each build row.

pub fn bound_col(&self) -> usize

pub fn intersect_col(&self) -> usize

pub fn append_row(&mut self, row: Vec<Value>)

Append one build row. Rows too narrow to hold both columns are skipped so malformed chunks cannot poison the table.

pub fn append_rows(&mut self, rows: &[Vec<Value>])

Append many build rows.

pub fn finish(&mut self)

Sort every adjacency list by the intersect column. Must be called after the last append and before the first probe.

pub fn lookup(&self, bound: &Value) -> &[Vec<Value>]

Adjacency rows for one bound value, sorted by the intersect column after IntersectBuild::finish.

pub fn num_keys(&self) -> usize

Number of distinct bound values.

pub fn num_rows(&self) -> usize

Total buffered rows across all bound values.

pub fn is_sealed(&self) -> bool

pub fn clear(&mut self)

Trait Implementations

impl Debug for IntersectBuild

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

Formats the value using the given formatter.

impl Default for IntersectBuild

fn default() -> Self

Returns the “default value” for a type.