Struct ParquetConfig 

pub struct ParquetConfig { /* private fields */ }

Configuration for loading data from a Parquet file.

Implementations

impl ParquetConfig

pub fn new( columns: Option<Vec<String>>, batch_size: usize, file_path: Option<String>, target_index: Option<usize>, exclude_indices: Vec<usize>, ) -> Self

Creates a new ParquetConfig.

impl ParquetConfig

pub fn columns(&self) -> &Option<Vec<String>>

An optional list of column names to select. If None, all columns are loaded.

pub fn batch_size(&self) -> usize

The number of rows to read at a time.

pub fn file_path(&self) -> Option<&String>

The path to the Parquet file, if known.

pub fn target_index(&self) -> Option<usize>

The index of the target column.

pub fn exclude_indices(&self) -> &Vec<usize>

Indices of columns to exclude.

Trait Implementations

impl Clone for ParquetConfig

fn clone(&self) -> ParquetConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParquetConfig

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

Formats the value using the given formatter.

impl Default for ParquetConfig

fn default() -> Self

Returns the “default value” for a type.

impl Display for ParquetConfig

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

Formats the value using the given formatter.