Method column_name

datafusion/core/tests/physical_optimizer/test_utils.rs:680–685

What name would this aggregate produce in a plan?

(&self)

    /// What name would this aggregate produce in a plan?
    pub fn column_name(&self) -> &'static str {
        match self {
            Self::CountStar => "COUNT(*)",
            Self::ColumnA(_) => "COUNT(a)",
        }
    }

    /// What is the expected count?
    pub fn expected_count(&self) -> i64 {