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QueryPlan

oxirs_core::model::sparql_optimizer

Struct QueryPlan 

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pub struct QueryPlan {
    pub operator: PlanOperator,
    pub children: Vec<QueryPlan>,
    pub estimated_cost: f64,
}
Expand description

A node in the query plan tree with cost estimates.

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§operator: PlanOperator§children: Vec<QueryPlan>§estimated_cost: f64

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impl QueryPlan

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pub fn new(operator: PlanOperator) -> Self

Create a new leaf plan node.

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pub fn with_children(operator: PlanOperator, children: Vec<QueryPlan>) -> Self

Create a new plan node with children.

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pub fn recompute_cost(&mut self)

Recompute cost bottom-up.

Trait Implementations§

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impl Clone for QueryPlan

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fn clone(&self) -> QueryPlan

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

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

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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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