Struct parquet::file::reader::SerializedFileReader

pub struct SerializedFileReader { /* fields omitted */ }

A serialized implementation for Parquet FileReader.

Methods

impl SerializedFileReader

pub fn new(file: File) -> Result<Self>

Creates file reader from a Parquet file. Returns error if Parquet file does not exist or is corrupt.

Trait Implementations

impl FileReader for SerializedFileReader

fn metadata(&self) -> ParquetMetaDataPtr

Get metadata information about this file.

fn num_row_groups(&self) -> usize

Get the total number of row groups for this file.

fn get_row_group(&self, i: usize) -> Result<Box<RowGroupReader>>

Get the ith row group reader. Note this doesn't do bound check.

fn get_row_iter(&self, projection: Option<SchemaType>) -> Result<RowIter>

Get full iterator of Rows from a file (over all row groups).