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RecordBatch

Struct RecordBatch 

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pub struct RecordBatch { /* private fields */ }
Expand description

A decoded block with one logical array per schema column.

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impl RecordBatch

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pub fn try_new( schema: Arc<Schema>, columns: Vec<Array>, row_count: usize, ) -> Result<Self>

Build a batch from arrays that already have one position per row.

The row count is given rather than taken from the first array, so a batch keeps its shape independently of how many columns it has, and every array is checked against it.

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pub fn schema(&self) -> &Schema

The schema shared by this batch.

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pub fn columns(&self) -> &[Array]

The decoded arrays in schema order.

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pub fn row_count(&self) -> usize

The number of logical rows in the block.

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pub fn column_by_name(&self, name: &str) -> Option<&Array>

Find a decoded array by its schema column name.

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pub fn column(&self, index: usize) -> Option<&Array>

Get a decoded array by schema position.

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impl Clone for RecordBatch

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fn clone(&self) -> RecordBatch

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 Debug for RecordBatch

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

Formats the value using the given formatter. Read more
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impl PartialEq for RecordBatch

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fn eq(&self, other: &RecordBatch) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl StructuralPartialEq for RecordBatch

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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> 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> 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> 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.