Enum ColumnValues 

pub enum ColumnValues {
    Int32s(Vec<Option<i32>>),
    Int64s(Vec<Option<i64>>),
    Float32s(Vec<Option<f32>>),
    Float64s(Vec<Option<f64>>),
    Utf8s(Vec<Option<String>>),
    Booleans(Vec<Option<bool>>),
}

Typed, nullable column values for one column in a RecordBatch.

Variants

Int32s(Vec<Option<i32>>)

32-bit signed integers.

Int64s(Vec<Option<i64>>)

64-bit signed integers.

Float32s(Vec<Option<f32>>)

32-bit floats.

Float64s(Vec<Option<f64>>)

64-bit floats.

Utf8s(Vec<Option<String>>)

UTF-8 strings.

Booleans(Vec<Option<bool>>)

Booleans.

Implementations

impl ColumnValues

pub fn len(&self) -> usize

Return the number of rows represented by this column.

pub fn is_empty(&self) -> bool

Return true if this column has no rows.

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

Slice row range [offset, offset + length).

pub fn filter_by_mask(&self, mask: &[bool]) -> ColumnValues

Filter rows by a boolean mask.

Trait Implementations

impl Clone for ColumnValues

fn clone(&self) -> ColumnValues

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnValues

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

Formats the value using the given formatter.