Struct arrow::array::StructArray

pub struct StructArray { /* fields omitted */ }

A nested array type where each child (called field) is represented by a separate array.

Methods

impl StructArray

pub fn column(&self, pos: usize) -> &ArrayRef

Returns the field at pos.

Trait Implementations

impl Array for StructArray

fn as_any(&self) -> &dyn Any

Returns the array as Any so that it can be downcast to a specific implementation

fn data(&self) -> ArrayDataRef

Returns a reference-counted pointer to the data of this array

fn data_ref(&self) -> &ArrayDataRef

Returns a borrowed & reference-counted pointer to the data of this array

fn len(&self) -> usize

Returns the length (i.e., number of elements) of this array

fn data_type(&self) -> &DataType

Returns a reference to the data type of this array

fn slice(&self, offset: usize, length: usize) -> ArrayRef

Returns a zero-copy slice of this array with the indicated offset and length.

fn offset(&self) -> usize

Returns the offset of this array

fn is_null(&self, i: usize) -> bool

Returns whether the element at index i is null

fn is_valid(&self, i: usize) -> bool

Returns whether the element at index i is not null

fn null_count(&self) -> usize

Returns the total number of nulls in this array

impl From<Arc<ArrayData>> for StructArray

fn from(data: ArrayDataRef) -> Self

Performs the conversion.

impl From<Vec<(Field, Arc<dyn Array + 'static>)>> for StructArray

fn from(v: Vec<(Field, ArrayRef)>) -> Self

Performs the conversion.

impl<'_> From<&'_ StructArray> for RecordBatch

fn from(struct_array: &StructArray) -> Self

Create a record batch from struct array.

This currently does not flatten and nested struct types