Struct arrow::compute::FilterBuilder

pub struct FilterBuilder {
    filter: BooleanArray,
    count: usize,
    strategy: IterationStrategy,
}

A builder to construct FilterPredicate

Fields

filter: BooleanArray

count: usize

strategy: IterationStrategy

Implementations

impl FilterBuilder

pub fn new(filter: &BooleanArray) -> FilterBuilder

Create a new FilterBuilder that can be used to construct a FilterPredicate

pub fn optimize(self) -> FilterBuilder

Compute an optimised representation of the provided filter mask that can be applied to an array more quickly.

Note: There is limited benefit to calling this to then filter a single array Note: This will likely have a larger memory footprint than the original mask

pub fn build(self) -> FilterPredicate

Construct the final FilterPredicate

Trait Implementations

impl Debug for FilterBuilder

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

Formats the value using the given formatter.