Struct SoaScanStats

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pub struct SoaScanStats {
    pub rows_scanned: usize,
    pub rows_visible: usize,
    pub values_materialized: usize,
    pub batches_processed: usize,
}

Expand description

Statistics for SoA scan performance monitoring

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§rows_scanned: usize

Total rows scanned

§rows_visible: usize

Rows that passed visibility filter

§values_materialized: usize

Rows where values were materialized

§batches_processed: usize

Number of batches processed

Implementations§

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impl SoaScanStats

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pub fn selectivity(&self) -> f64

Get selectivity ratio

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pub fn materialization_efficiency(&self) -> f64

Get value materialization efficiency (1.0 = all visible rows materialized, lower = some skipped)

Trait Implementations§

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impl Clone for SoaScanStats

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fn clone(&self) -> SoaScanStats

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 SoaScanStats

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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 SoaScanStats

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fn default() -> SoaScanStats

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl UnwindSafe for SoaScanStats

Blanket Implementations§

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impl<T> Allocation for T
where T: RefUnwindSafe + Send + Sync,

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where T: 'static + ?Sized,

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where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

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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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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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fn into_either(self, into_left: bool) -> Either<Self, Self>

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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where F: FnOnce(&Self) -> bool,

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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