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QueryPlanSummary

oxirs_core::query::query_plan_visualizer

Struct QueryPlanSummary 

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pub struct QueryPlanSummary {
    pub total_nodes: usize,
    pub total_execution_time_us: u64,
    pub total_estimated_cost: f64,
    pub triple_patterns: usize,
    pub joins: usize,
    pub filters: usize,
    pub unions: usize,
    pub optionals: usize,
    pub index_operations: usize,
    pub cardinality_errors: Vec<f64>,
}
Expand description

Summary statistics for query plan

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§total_nodes: usize

Total number of nodes in plan

§total_execution_time_us: u64

Total execution time in microseconds

§total_estimated_cost: f64

Total estimated cost

§triple_patterns: usize

Number of triple patterns

§joins: usize

Number of joins

§filters: usize

Number of filters

§unions: usize

Number of unions

§optionals: usize

Number of optional patterns

§index_operations: usize

Number of operations using indexes

§cardinality_errors: Vec<f64>

Cardinality estimation errors (ratio of estimate/actual)

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impl QueryPlanSummary

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pub fn avg_cardinality_error(&self) -> f64

Calculate average cardinality error

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pub fn execution_time_ms(&self) -> f64

Get execution time in milliseconds

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impl Debug for QueryPlanSummary

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

Formats the value using the given formatter. Read more
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impl Default for QueryPlanSummary

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fn default() -> QueryPlanSummary

Returns the “default value” for a type. Read more
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impl<'de> Deserialize<'de> for QueryPlanSummary

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Display for QueryPlanSummary

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

Formats the value using the given formatter. Read more
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impl Serialize for QueryPlanSummary

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more

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