Struct PrimitiveGroupValueBuilder 

pub struct PrimitiveGroupValueBuilder<T: ArrowPrimitiveType, const NULLABLE: bool> {
    data_type: DataType,
    group_values: Vec<T::Native>,
    nulls: MaybeNullBufferBuilder,
}

An implementation of GroupColumn for primitive values

Optimized to skip null buffer construction if the input is known to be non nullable

Template parameters

T: the native Rust type that stores the data NULLABLE: if the data can contain any nulls

Fields

data_type: DataType

group_values: Vec<T::Native>

nulls: MaybeNullBufferBuilder

Implementations

impl<T, const NULLABLE: bool> PrimitiveGroupValueBuilder<T, NULLABLE>

where T: ArrowPrimitiveType,

pub fn new(data_type: DataType) -> Self

Create a new PrimitiveGroupValueBuilder

Trait Implementations

impl<T: Debug + ArrowPrimitiveType, const NULLABLE: bool> Debug for PrimitiveGroupValueBuilder<T, NULLABLE>

where T::Native: Debug,

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

Formats the value using the given formatter.

impl<T: ArrowPrimitiveType, const NULLABLE: bool> GroupColumn for PrimitiveGroupValueBuilder<T, NULLABLE>

fn equal_to(&self, lhs_row: usize, array: &ArrayRef, rhs_row: usize) -> bool

Returns equal if the row stored in this builder at lhs_row is equal to the row in array at rhs_row

fn append_val(&mut self, array: &ArrayRef, row: usize) -> Result<()>

Appends the row at row in array to this builder

fn vectorized_equal_to( &self, lhs_rows: &[usize], array: &ArrayRef, rhs_rows: &[usize], equal_to_results: &mut [bool], )

The vectorized version equal to

fn vectorized_append(&mut self, array: &ArrayRef, rows: &[usize]) -> Result<()>

The vectorized version append_val

fn len(&self) -> usize

Returns the number of rows stored in this builder

fn size(&self) -> usize

Returns the number of bytes used by this GroupColumn

fn build(self: Box<Self>) -> ArrayRef

Builds a new array from all of the stored rows

fn take_n(&mut self, n: usize) -> ArrayRef

Builds a new array from the first n stored rows, shifting the remaining rows to the start of the builder

fn is_empty(&self) -> bool

true if len == 0