polars_compute::unique

Struct PrimitiveRangedUniqueState

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pub struct PrimitiveRangedUniqueState<T: NativeType> { /* private fields */ }
Expand description

A specialized unique kernel for PrimitiveArray for when all values are in a small known range.

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impl<T> PrimitiveRangedUniqueState<T>
where T: Add<T, Output = T> + Sub<T, Output = T> + FromPrimitive + IsFloat + NativeType,

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pub fn new( min_value: T, max_value: T, has_null: bool, dtype: ArrowDataType, ) -> Option<Self>

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impl<T> RangedUniqueKernel for PrimitiveRangedUniqueState<T>
where T: Add<T, Output = T> + Sub<T, Output = T> + FromPrimitive + IsFloat + NativeType,

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type Array = PrimitiveArray<T>

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fn has_seen_all(&self) -> bool

Returns whether all the values in the whole range are in the state
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fn append(&mut self, array: &Self::Array)

Append an Array’s values to the State
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fn finalize_unique(self) -> Self::Array

Consume the state to get the unique elements
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fn finalize_n_unique(self) -> usize

Consume the state to get the number of unique elements including null
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fn finalize_n_unique_non_null(self) -> usize

Consume the state to get the number of unique elements excluding null

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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, 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> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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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.