Struct Drop 

pub struct Drop { /* private fields */ }

A transform that drops (removes) specified columns from a RecordBatch.

Example

use alimentar::Drop;

let drop = Drop::new(vec!["temp_column", "debug_info"]);

Implementations

impl Drop

pub fn new<S: Into<String>>(columns: impl IntoIterator<Item = S>) -> Self

Creates a new Drop transform for the given column names.

pub fn columns(&self) -> &[String]

Returns the columns to be dropped.

Trait Implementations

impl Clone for Drop

fn clone(&self) -> Drop

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Drop

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

Formats the value using the given formatter.

impl Transform for Drop

fn apply(&self, batch: RecordBatch) -> Result<RecordBatch>

Applies the transform to a RecordBatch.