Class Explain

datafusion/expr/src/logical_plan/plan.rs:3258–3272

/// [the documentation]: https://datafusion.apache.org/user-guide/sql/explain.html
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
pub struct Explain {
    /// Should extra (detailed, intermediate plans) be included?
    pub verbose: bool,
    /// Output format for explain, if specified.
    /// If none, defaults to `text`
    pub explain_format: ExplainFormat,
    /// The logical plan that is being EXPLAIN'd
    pub plan: Arc<LogicalPlan>,
    /// Represent the various stages plans have gone through
    pub stringified_plans: Vec<StringifiedPlan>,
    /// The output schema of the explain (2 columns of text)
    pub schema: DFSchemaRef,
    /// Used by physical planner to check if should proceed with planning
    pub logical_optimization_succeeded: bool,
}

// Manual implementation needed because of `schema` field. Comparison excludes this field.
impl PartialOrd for Explain {