Struct arrow2::io::parquet::read::ReadColumnIterator

pub struct ReadColumnIterator { /* private fields */ }

Available on crate feature io_parquet only.

A MutStreamingIterator of pre-read column chunks

Implementations

impl ReadColumnIterator

pub fn new(
    field: ParquetType,
    chunks: Vec<(Vec<Result<CompressedPage, Error>, Global>, ColumnChunkMetaData), Global>
) -> ReadColumnIterator

Returns a new ReadColumnIterator

Trait Implementations

impl ColumnChunkIter<IntoIter<Result<CompressedPage, Error>, Global>> for ReadColumnIterator

fn field(&self) -> &ParquetType

The field associated to the set of column chunks this iterator iterates over.

impl Debug for ReadColumnIterator

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

Formats the value using the given formatter.

impl MutStreamingIterator for ReadColumnIterator

type Item = (IntoIter<Result<CompressedPage, Error>, Global>, ColumnChunkMetaData)

type Error = Error

fn advance(self) -> Result<State<ReadColumnIterator>, Error>

fn get(
    &mut self
) -> Option<&mut <ReadColumnIterator as MutStreamingIterator>::Item>