Trait Columnar 

pub trait Columnar: Sized {
    // Required method
    fn columnar_from_refs(items: &[&Self]) -> Result<DataFrame, PolarsError>;

    // Provided method
    fn columnar_to_dataframe(items: &[Self]) -> Result<DataFrame, PolarsError> { ... }
}

Columnar batch trait implemented by the derive macro.

Required Methods

fn columnar_from_refs(items: &[&Self]) -> Result<DataFrame, PolarsError>

Errors

Returns an error if DataFrame construction fails.

Provided Methods

fn columnar_to_dataframe(items: &[Self]) -> Result<DataFrame, PolarsError>

Errors

Returns an error if DataFrame construction fails.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl Columnar for ()

fn columnar_to_dataframe(items: &[()]) -> Result<DataFrame, PolarsError>

fn columnar_from_refs(items: &[&()]) -> Result<DataFrame, PolarsError>

Implementors