Struct SelectionVector 

pub struct SelectionVector { /* private fields */ }

Selection vector for batch predicate evaluation

Maintains indices of rows that pass all predicates so far. Short-circuits at batch level when selection becomes empty.

Implementations

impl SelectionVector

pub fn all(batch_size: usize) -> Self

Create selection with all rows selected

pub fn empty() -> Self

Create empty selection

pub fn from_indices(indices: Vec<u32>, batch_size: usize) -> Self

Create from specific indices

pub fn is_empty(&self) -> bool

Check if selection is empty (short-circuit condition)

pub fn len(&self) -> usize

Number of selected rows

pub fn batch_size(&self) -> usize

Original batch size

pub fn selectivity(&self) -> f64

Selectivity ratio

pub fn iter(&self) -> impl Iterator<Item = u32> + '_

Iterate over selected indices

pub fn filter<F>(&self, pred: F) -> Self

where F: Fn(u32) -> bool,

Filter selection with a predicate, returning new selection

pub fn extend_masked(&mut self, start_idx: usize, mask: u16)

Extend with masked indices (for SIMD results)

Trait Implementations

impl Clone for SelectionVector

fn clone(&self) -> SelectionVector

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SelectionVector

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

Formats the value using the given formatter.