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PatternStrategy

oxirs_core::query::pattern_optimizer

Struct PatternStrategy 

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pub struct PatternStrategy {
    pub index_type: IndexType,
    pub estimated_cost: f64,
    pub selectivity: f64,
    pub bound_vars: HashSet<Variable>,
    pub pushdown_filters: Vec<FilterExpression>,
}
Expand description

Pattern matching strategy

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§index_type: IndexType

Index to use for this pattern

§estimated_cost: f64

Estimated cost

§selectivity: f64

Selectivity estimate (0.0 to 1.0)

§bound_vars: HashSet<Variable>

Variables that will be bound after executing this pattern

§pushdown_filters: Vec<FilterExpression>

Associated filter expressions that can be pushed down

Trait Implementations§

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impl Clone for PatternStrategy

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fn clone(&self) -> PatternStrategy

Returns a duplicate of the value. Read more
1.0.0 · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for PatternStrategy

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

Formats the value using the given formatter. Read more

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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