Struct DependencyNode 

pub struct DependencyNode {
    pub(crate) target: Option<PhysicalSortExpr>,
    pub(crate) dependencies: Dependencies,
}

Represents a node in the dependency map used to construct projected orderings.

A DependencyNode contains information about a particular sort expression, including its target sort expression and a set of dependencies on other sort expressions.

Fields

• target: An optional PhysicalSortExpr representing the target sort expression associated with the node. It is None if the sort expression cannot be projected.
• dependencies: A Dependencies containing dependencies on other sort expressions that are referred to by the target sort expression.

Fields

target: Option<PhysicalSortExpr>

dependencies: Dependencies

Trait Implementations

impl Clone for DependencyNode

fn clone(&self) -> DependencyNode

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DependencyNode

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

Formats the value using the given formatter.

impl Display for DependencyNode

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

Formats the value using the given formatter.

impl PartialEq for DependencyNode

fn eq(&self, other: &DependencyNode) -> 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 DependencyNode

impl StructuralPartialEq for DependencyNode