Method field

datafusion/physical-expr/src/aggregate.rs:704–710

the field of the final result of this aggregation.

(&self)

    /// the field of the final result of this aggregation.
    pub fn field(&self) -> FieldRef {
        self.return_field
            .as_ref()
            .clone()
            .with_name(&self.name)
            .into()
    }

    /// the accumulator used to accumulate values from the expressions.
    /// the accumulator expects the same number of arguments as `expressions` and must