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SelectivityInfo

oxirs_core::query::statistics

Struct SelectivityInfo 

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pub struct SelectivityInfo {
    pub pattern_signature: String,
    pub observed_selectivity: f64,
    pub observation_count: u64,
    pub last_observed_ms: u128,
    pub estimated_result_size: u64,
}
Expand description

Selectivity information for pattern matching

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§pattern_signature: String

Pattern signature (hash of pattern structure)

§observed_selectivity: f64

Observed selectivity (0.0 to 1.0)

§observation_count: u64

Number of observations

§last_observed_ms: u128

Last observed timestamp (as milliseconds)

§estimated_result_size: u64

Estimated result size

Trait Implementations§

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impl Clone for SelectivityInfo

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fn clone(&self) -> SelectivityInfo

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 SelectivityInfo

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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<'de> Deserialize<'de> for SelectivityInfo

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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 Serialize for SelectivityInfo

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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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