PrimitiveHeap

datafusion_physical_plan::aggregates::topk::heap

Struct PrimitiveHeap 

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pub struct PrimitiveHeap<VAL: ArrowPrimitiveType>
where
    <VAL as ArrowPrimitiveType>::Native: Comparable,
{
    batch: ArrayRef,
    heap: TopKHeap<VAL::Native>,
    desc: bool,
    data_type: DataType,
}
Expand description

An implementation of ArrowHeap that deals with primitive values

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§batch: ArrayRef§heap: TopKHeap<VAL::Native>§desc: bool§data_type: DataType

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impl<VAL: ArrowPrimitiveType> PrimitiveHeap<VAL>
where <VAL as ArrowPrimitiveType>::Native: Comparable,

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pub fn new(limit: usize, desc: bool, data_type: DataType) -> Self

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impl<VAL: ArrowPrimitiveType> ArrowHeap for PrimitiveHeap<VAL>
where <VAL as ArrowPrimitiveType>::Native: Comparable,

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fn set_batch(&mut self, vals: ArrayRef)

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fn is_worse(&self, row_idx: usize) -> bool

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fn worst_map_idx(&self) -> usize

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fn renumber(&mut self, heap_to_map: &[(usize, usize)])

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fn insert( &mut self, row_idx: usize, map_idx: usize, map: &mut Vec<(usize, usize)>, )

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fn replace_if_better( &mut self, heap_idx: usize, row_idx: usize, map: &mut Vec<(usize, usize)>, )

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fn drain(&mut self) -> (ArrayRef, Vec<usize>)

Auto Trait Implementations§

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impl<VAL> Freeze for PrimitiveHeap<VAL>

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impl<VAL> !RefUnwindSafe for PrimitiveHeap<VAL>

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impl<VAL> Send for PrimitiveHeap<VAL>

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impl<VAL> Sync for PrimitiveHeap<VAL>

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impl<VAL> Unpin for PrimitiveHeap<VAL>
where <VAL as ArrowPrimitiveType>::Native: Unpin,

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impl<VAL> !UnwindSafe for PrimitiveHeap<VAL>

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

Mutably borrows from an owned value. 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>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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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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impl<T> IntoEither for T

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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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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
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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impl<T> PolicyExt for T
where T: ?Sized,

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fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns [Action::Follow] only if self and other return Action::Follow. Read more
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fn or<P, B, E>(self, other: P) -> Or<T, P>
where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns [Action::Follow] if either self or other returns Action::Follow. Read more
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impl<T> Same for T

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type Output = T

Should always be Self
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a [WithDispatch] wrapper. Read more
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impl<T> ErasedDestructor for T
where T: 'static,