Struct mz_persist_types::codec_impls::SimpleColumnarDecoder

pub struct SimpleColumnarDecoder<T: SimpleColumnarData>(T::ArrowColumn);

A type that implements ColumnDecoder for SimpleColumnarData.

Tuple Fields

0: T::ArrowColumn

Implementations

impl<T: SimpleColumnarData> SimpleColumnarDecoder<T>

pub fn new(col: T::ArrowColumn) -> Self

Returns a new SimpleColumnarDecoder with the provided column.

Trait Implementations

impl<T: SimpleColumnarData> ColumnDecoder<T> for SimpleColumnarDecoder<T>

fn decode(&self, idx: usize, val: &mut T)

Decode the value at idx into the buffer val.

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

Returns if the value at idx is null.

fn stats(&self) -> StructStats

Returns statistics for the column. This structure is defined by Persist, but the contents are determined by the client; Persist will preserve them in the part metadata and make them available to readers.

impl<T: Debug + SimpleColumnarData> Debug for SimpleColumnarDecoder<T>

where T::ArrowColumn: Debug,

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

Formats the value using the given formatter.