Struct FilterRanker

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pub struct FilterRanker { /* private fields */ }

Expand description

Filter ranker

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impl FilterRanker

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pub fn new(config: RankingConfig) -> FilterRanker

Create new filter ranker

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pub fn with_defaults() -> FilterRanker

Create with default configuration

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pub fn with_stats(self, stats: TableStats) -> FilterRanker

Set table statistics

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pub fn estimate_selectivity(&self, filter: &FilterExpr) -> f64

Estimate selectivity of a filter

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pub fn estimate_cost(&self, filter: &FilterExpr) -> f64

Estimate cost of evaluating a filter

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pub fn rank(&self, filters: Vec<FilterExpr>) -> Vec<RankedFilter>

Rank a list of filters

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pub fn reorder(&self, filters: Vec<FilterExpr>) -> Vec<FilterExpr>

Reorder filters for optimal execution

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pub fn config(&self) -> &RankingConfig

Get configuration

Trait Implementations§

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impl Default for FilterRanker

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fn default() -> FilterRanker

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl UnwindSafe for FilterRanker

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn instrument(self, span: Span) -> Instrumented<Self>

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