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KeyChunk

arrow_select::coalesce::dictionary

Struct KeyChunk 

Source 
struct KeyChunk<K: ArrowDictionaryKeyType> {
    keys: ScalarBuffer<K::Native>,
    nulls: Option<NullBuffer>,
    source: usize,
}

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§keys: ScalarBuffer<K::Native>

Zero-copy slice of source-local keys for the retained rows.

§nulls: Option<NullBuffer>

Shared validity buffer from the source keys, if present.

§source: usize

Index of the values array in InProgressDictionaryArray::sources.

Auto Trait Implementations§

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impl<K> Forget for KeyChunk<K>

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impl<K> Freeze for KeyChunk<K>
where ScalarBuffer<<K as ArrowPrimitiveType>::Native>: Freeze,

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impl<K> Move for KeyChunk<K>

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impl<K> RefUnwindSafe for KeyChunk<K>
where ScalarBuffer<<K as ArrowPrimitiveType>::Native>: RefUnwindSafe,

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impl<K> Send for KeyChunk<K>
where ScalarBuffer<<K as ArrowPrimitiveType>::Native>: Send,

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impl<K> Sync for KeyChunk<K>
where ScalarBuffer<<K as ArrowPrimitiveType>::Native>: Sync,

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impl<K> Unpin for KeyChunk<K>
where ScalarBuffer<<K as ArrowPrimitiveType>::Native>: Unpin,

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impl<K> UnsafeUnpin for KeyChunk<K>
where ScalarBuffer<<K as ArrowPrimitiveType>::Native>: UnsafeUnpin,

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impl<K> UnwindSafe for KeyChunk<K>
where ScalarBuffer<<K as ArrowPrimitiveType>::Native>: UnwindSafe,

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

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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<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

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impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

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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, 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> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = !

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

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.