datafusion_physical_expr_common::binary_view_map

Struct ArrowBytesViewSet

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pub struct ArrowBytesViewSet(/* private fields */);
Expand description

HashSet optimized for storing string or binary values that can produce that the final set as a GenericBinaryViewArray with minimal copies.

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impl ArrowBytesViewSet

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pub fn new(output_type: OutputType) -> Self

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pub fn insert(&mut self, values: &ArrayRef)

Inserts each value from values into the set

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pub fn take(&mut self) -> Self

Return the contents of this map and replace it with a new empty map with the same output type

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pub fn into_state(self) -> ArrayRef

Converts this set into a StringViewArray or BinaryViewArray containing each distinct value that was interned. This is done without copying the values.

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pub fn len(&self) -> usize

Returns the total number of distinct values (including nulls) seen so far

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pub fn is_empty(&self) -> bool

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pub fn non_null_len(&self) -> usize

returns the total number of distinct values (not including nulls) seen so far

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pub fn size(&self) -> usize

Return the total size, in bytes, of memory used to store the data in this set, not including self

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impl Debug for ArrowBytesViewSet

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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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

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