Method to_stringified

datafusion/expr/src/logical_plan/plan.rs:2212–2214

(&self, plan_type: PlanType)

impl ToStringifiedPlan for LogicalPlan {
    fn to_stringified(&self, plan_type: PlanType) -> StringifiedPlan {
        StringifiedPlan::new(plan_type, self.display_indent().to_string())
    }
}

/// Relationship produces 0 or 1 placeholder rows with specified output schema