Trait polars_lazy::dsl::FunctionOutputField

pub trait FunctionOutputField: Send + Sync {
    fn get_field(
        &self, 
        input_schema: &Schema, 
        cntxt: Context, 
        fields: &[Field]
    ) -> Field;
}

This is supported on crate feature compile only.

Required methods

fn get_field(
    &self,
    input_schema: &Schema,
    cntxt: Context,
    fields: &[Field]
) -> Field

Implementors

impl<F> FunctionOutputField for F where
    F: Fn(&Schema, Context, &[Field]) -> Field + Send + Sync,