Struct ColumnPredicate 

pub struct ColumnPredicate { /* private fields */ }

A simple column value predicate for factorized data.

Evaluates a condition on a specific column at a specific level.

Implementations

impl ColumnPredicate

pub fn new(level: usize, column: usize, op: CompareOp, value: Value) -> Self

Creates a new column predicate.

pub fn eq(level: usize, column: usize, value: Value) -> Self

Creates an equality predicate.

pub fn ne(level: usize, column: usize, value: Value) -> Self

Creates an inequality predicate.

pub fn lt(level: usize, column: usize, value: Value) -> Self

Creates a less-than predicate.

pub fn gt(level: usize, column: usize, value: Value) -> Self

Creates a greater-than predicate.

Trait Implementations

impl Clone for ColumnPredicate

fn clone(&self) -> ColumnPredicate

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnPredicate

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

Formats the value using the given formatter.

impl FactorizedPredicate for ColumnPredicate

fn evaluate( &self, chunk: &FactorizedChunk, level: usize, physical_idx: usize, ) -> bool

Evaluates the predicate for a single physical index at a level.

fn target_level(&self) -> Option<usize>

Returns the level this predicate operates on.

fn evaluate_batch( &self, chunk: &FactorizedChunk, level: usize, ) -> LevelSelection

Evaluates the predicate for all physical indices at a level.