ExecutionPlan

oxirs_core::query::plan

Enum ExecutionPlan 

Source 
pub enum ExecutionPlan {
    TripleScan {
        pattern: TriplePattern,
    },
    HashJoin {
        left: Box<ExecutionPlan>,
        right: Box<ExecutionPlan>,
        join_vars: Vec<Variable>,
    },
    Filter {
        input: Box<ExecutionPlan>,
        condition: Expression,
    },
    Project {
        input: Box<ExecutionPlan>,
        vars: Vec<Variable>,
    },
    Sort {
        input: Box<ExecutionPlan>,
        order_by: Vec<OrderExpression>,
    },
    Limit {
        input: Box<ExecutionPlan>,
        limit: usize,
        offset: usize,
    },
    Union {
        left: Box<ExecutionPlan>,
        right: Box<ExecutionPlan>,
    },
    Distinct {
        input: Box<ExecutionPlan>,
    },
}
Expand description

A query execution plan

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TripleScan

Scan all triples matching a pattern

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§pattern: TriplePattern
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HashJoin

Join two sub-plans

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§left: Box<ExecutionPlan>
§right: Box<ExecutionPlan>
§join_vars: Vec<Variable>
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Filter

Filter results

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§input: Box<ExecutionPlan>
§condition: Expression
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Project

Project specific variables

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§input: Box<ExecutionPlan>
§vars: Vec<Variable>
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Sort

Sort results

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§input: Box<ExecutionPlan>
§order_by: Vec<OrderExpression>
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Limit

Limit results

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§input: Box<ExecutionPlan>
§limit: usize
§offset: usize
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Union

Union of two plans

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Distinct

Distinct results

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§input: Box<ExecutionPlan>

Trait Implementations§

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impl Clone for ExecutionPlan

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fn clone(&self) -> ExecutionPlan

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 ExecutionPlan

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

Formats the value using the given formatter. Read more

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Mutably borrows from an owned value. 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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