Trait polars_lazy::dsl::UdfSchema

pub trait UdfSchema: Send + Sync {
    fn get_schema(
        &self,
        input_schema: &Schema
    ) -> Result<Arc<Schema>, PolarsError>;
}

Required Methods

fn get_schema(&self, input_schema: &Schema) -> Result<Arc<Schema>, PolarsError>

Trait Implementations

impl Debug for dyn UdfSchema + 'static

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

Formats the value using the given formatter.

Implementors

impl<F> UdfSchema for Fwhere
    F: Fn(&Schema) -> Result<Arc<Schema>, PolarsError> + Send + Sync,