Struct SqpPlannerStats

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pub struct SqpPlannerStats {
    pub total_plans: u64,
    pub cache_hit_rate: f64,
    pub avg_cost: f64,
    pub index_usage_rate: f64,
    pub cache_size: usize,
    pub registered_indexes: usize,
}

Expand description

Aggregate statistics for the planner since creation.

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§total_plans: u64

Total number of plans generated (including cache hits).

§cache_hit_rate: f64

Fraction of planning calls that were served from cache (0.0–1.0).

§avg_cost: f64

Average estimated cost across all plans.

§index_usage_rate: f64

Fraction of plans that use at least one index (0.0–1.0).

§cache_size: usize

Number of entries currently in the plan cache.

§registered_indexes: usize

Number of registered indexes.

Trait Implementations§

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impl Clone for SqpPlannerStats

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fn clone(&self) -> SqpPlannerStats

Returns a duplicate of the value. Read more

1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more

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impl Debug for SqpPlannerStats

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl UnwindSafe for SqpPlannerStats

Blanket Implementations§

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impl<T> Allocation for T
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impl<T> Any for T
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fn borrow_mut(&mut self) -> &mut T

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impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
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impl<T> CloneToUninit for T
where T: Clone,

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

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

Performs copy-assignment from self to dest. Read more

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impl<T> From<T> for T

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Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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