Struct BoolVecBuilder 

struct BoolVecBuilder {
    inner: Vec<bool>,
}

Builds the return Vec for PruningPredicate::prune.

Fields

inner: Vec<bool>

One element per container. Each element is

• true: if the container has row that may pass the predicate
• false: if the container has rows that DEFINITELY DO NOT pass the predicate

Implementations

impl BoolVecBuilder

fn new(num_containers: usize) -> Self

Create a new BoolVecBuilder with num_containers elements

fn combine_array(&mut self, array: &BooleanArray)

Combines result array for a conjunct (e.g. AND clause) of a predicate into the currently in progress array.

Each array element is:

• true: container has row that may pass the predicate
• false: all container rows DEFINITELY DO NOT pass the predicate
• null: container may or may not have rows that pass the predicate

fn combine_value(&mut self, value: ColumnarValue)

Combines the results in the [ColumnarValue] to the currently in progress array, following the same rules as Self::combine_array.

Panics

If value is not boolean

fn build(self) -> Vec<bool>

Convert this builder into a Vec of bools

fn check_all_pruned(&self) -> bool

Check all containers has rows that DEFINITELY DO NOT pass the predicate

Trait Implementations

impl Debug for BoolVecBuilder

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

Formats the value using the given formatter.