Struct PlanGraph 

pub struct PlanGraph {
    pub version: PlanGraphVersion,
    pub nodes: Vec<PlanNode>,
    pub edges: Vec<PlanEdge>,
    pub root_nodes: Vec<PlanNodeId>,
    pub annotations: PlanAnnotations,
}

Immutable DAG describing the planner output.

Fields

version: PlanGraphVersion

nodes: Vec<PlanNode>

edges: Vec<PlanEdge>

root_nodes: Vec<PlanNodeId>

annotations: PlanAnnotations

Implementations

impl PlanGraph

pub fn builder() -> PlanGraphBuilder

Construct a new PlanGraphBuilder.

pub fn is_empty(&self) -> bool

pub fn version(&self) -> PlanGraphVersion

pub fn root_nodes(&self) -> &[PlanNodeId]

pub fn validate(&self) -> Result<(), PlanGraphError>

pub fn to_dot(&self) -> Result<String, PlanGraphError>

pub fn to_json(&self) -> Result<String, PlanGraphError>

pub fn from_json(json: &str) -> Result<PlanGraph, PlanGraphError>

pub fn topological_order(&self) -> Result<Vec<PlanNodeId>, PlanGraphError>

Trait Implementations

impl Clone for PlanGraph

fn clone(&self) -> PlanGraph

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PlanGraph

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for PlanGraph

fn deserialize<__D>( __deserializer: __D, ) -> Result<PlanGraph, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for PlanGraph

fn eq(&self, other: &PlanGraph) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for PlanGraph

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for PlanGraph