CostEstimator

fcdb_exec

Struct CostEstimator 

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pub struct CostEstimator {
    pub base_selectivity: f64,
    pub path_expansion_factor: f64,
    pub type_filter_factor: f64,
}
Expand description

Cost estimation for query optimization

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§base_selectivity: f64§path_expansion_factor: f64§type_filter_factor: f64

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impl CostEstimator

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pub fn new() -> Self

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pub fn estimate_cost(&self, path: &[&str], types: &[&str]) -> f64

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