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VarianceAggregator

reddb_server::storage::query::executors::aggregation

Struct VarianceAggregator 

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pub struct VarianceAggregator { /* private fields */ }
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Variance aggregator

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impl Aggregator for VarianceAggregator

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fn accumulate(&mut self, value: Option<&Value>)

Process a single value
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fn finalize(&self) -> Value

Get the final aggregated result
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fn reset(&mut self)

Reset for new group
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fn new_instance(&self) -> Box<dyn Aggregator>

Create a fresh copy for a new group
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fn name(&self) -> &'static str

Name of the aggregator
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impl Clone for VarianceAggregator

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fn clone(&self) -> VarianceAggregator

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 VarianceAggregator

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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 VarianceAggregator

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fn default() -> VarianceAggregator

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

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impl<T> Any for T
where T: 'static + ?Sized,

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where T: ?Sized,

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fn borrow(&self) -> &T

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

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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> FromRef<T> for T
where T: Clone,

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fn from_ref(input: &T) -> T

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

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

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const ALIGN: usize

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type Init = T

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unsafe fn init(init: <T as Pointable>::Init) -> usize

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unsafe fn drop(ptr: usize)

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type Output = T

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type Owned = T

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type Error = Infallible

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type Error = <U as TryFrom<T>>::Error

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