Struct JoinNode 

pub struct JoinNode {
    pub id: usize,
    pub variable: String,
    pub relation: LogicalOperator,
}

A node in the join graph.

Fields

id: usize

Unique identifier for this node.

variable: String

Variable name (e.g., “a” for node (a:Person)).

relation: LogicalOperator

The base relation (scan operator).

Trait Implementations

impl Clone for JoinNode

fn clone(&self) -> JoinNode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for JoinNode

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

Formats the value using the given formatter.

impl Hash for JoinNode

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for JoinNode

fn eq(&self, other: &Self) -> 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 Eq for JoinNode