Struct ExecutionPlan 

pub struct ExecutionPlan {
    pub nodes: Vec<PlanNode>,
    pub estimated_cost: f64,
}

Complete execution plan for a query

Fields

nodes: Vec<PlanNode>

estimated_cost: f64

Implementations

impl ExecutionPlan

pub fn new() -> Self

Create a new empty execution plan

pub fn add_node(&mut self, node: PlanNode)

Add a node to the execution plan

pub fn set_estimated_cost(&mut self, cost: f64)

Set the estimated cost for the plan

pub fn root_node(&self) -> Option<&PlanNode>

Get the root node of the plan

pub fn is_empty(&self) -> bool

Check if the plan is empty

Trait Implementations

impl Clone for ExecutionPlan

fn clone(&self) -> ExecutionPlan

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ExecutionPlan

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for ExecutionPlan

fn default() -> Self

Returns the “default value” for a type.