arrow::compute::kernels::filter

Struct FilterBuilder

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

A builder to construct FilterPredicate

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§filter: BooleanArray§count: usize§strategy: IterationStrategy

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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§

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impl Debug for FilterBuilder

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

Formats the value using the given formatter. Read more

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fn vzip(self) -> V

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