Method null_treatment

datafusion/expr/src/expr_fn.rs:903–909

Add `RESPECT NULLS` or `IGNORE NULLS`

(
        mut self,
        null_treatment: impl Into<Option<NullTreatment>>,
    )

    /// Add `RESPECT NULLS` or `IGNORE NULLS`
    fn null_treatment(
        mut self,
        null_treatment: impl Into<Option<NullTreatment>>,
    ) -> ExprFuncBuilder {
        self.null_treatment = null_treatment.into();
        self
    }

    fn partition_by(mut self, partition_by: Vec<Expr>) -> ExprFuncBuilder {
        self.partition_by = Some(partition_by);