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ColumnView

Enum ColumnView 

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pub enum ColumnView<'a> {
    Float64(&'a Float64Column),
    Int64(&'a Int64Column),
    Boolean(&'a BooleanColumn),
    Categorical(&'a CategoricalColumn),
    Timestamp(&'a TimestampColumn),
    FixedVector(&'a FixedVectorColumn),
}
Expand description

Borrowed typed column view (library-owned; not Arrow types).

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Float64(&'a Float64Column)

Float64 column.

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Int64(&'a Int64Column)

Int64 column.

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Boolean(&'a BooleanColumn)

Boolean column.

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Categorical(&'a CategoricalColumn)

Dictionary categorical column.

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Timestamp(&'a TimestampColumn)

Timestamp column.

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FixedVector(&'a FixedVectorColumn)

Fixed-size vector column.

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impl<'a> ColumnView<'a>

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pub fn id(self) -> VariableId

Variable id.

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pub fn len(self) -> usize

Row count.

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pub fn is_empty(self) -> bool

Whether empty.

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pub fn validity(self) -> &'a ValidityBitmap

Borrow the column validity bitmap.

Trait Implementations§

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impl<'a> Clone for ColumnView<'a>

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fn clone(&self) -> ColumnView<'a>

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<'a> Copy for ColumnView<'a>

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impl<'a> Debug for ColumnView<'a>

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<'a> !RefUnwindSafe for ColumnView<'a>

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impl<'a> !UnwindSafe for ColumnView<'a>

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impl<'a> Freeze for ColumnView<'a>

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impl<'a> Send for ColumnView<'a>

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impl<'a> Sync for ColumnView<'a>

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impl<'a> Unpin for ColumnView<'a>

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impl<'a> UnsafeUnpin for ColumnView<'a>

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<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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> ForeignBufferOwner for T
where T: Send + Sync + Debug + 'static,

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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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. 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.