Enum HashKeys

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pub enum HashKeys {
    RowEncoded(RowEncodedKeys),
    Single(SingleKeys),
}

Expand description

Represents a DataFrame plus a hash per row, intended for keys in grouping or joining. The hashes may or may not actually be physically pre-computed, this depends per type.

Variants§

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RowEncoded(RowEncodedKeys)

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Single(SingleKeys)

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impl HashKeys

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pub fn from_df( df: &DataFrame, random_state: PlRandomState, force_row_encoding: bool, ) -> Self

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pub fn gen_partition_idxs( &self, partitioner: &HashPartitioner, partition_idxs: &mut [Vec<IdxSize>], )

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pub unsafe fn gather(&self, idxs: &[IdxSize]) -> Self

§Safety

The indices must be in-bounds.

Auto Trait Implementations§

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impl !UnwindSafe for HashKeys

Blanket Implementations§

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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

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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

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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 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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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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