Struct ColumnRead 

pub struct ColumnRead {
    pub reference: ColumnReference,
    pub resolution: ResolutionKind,
}

One read-side occurrence of a ColumnReference, pairing the identity with how the resolver resolved it (ResolutionKind).

Read-side surfaces (ColumnOperation::reads and ColumnLineageEdge::source) use this wrapper so the same column referenced twice can carry per-occurrence resolution metadata without breaking ColumnReference’s identity-only contract. The write-side counterpart is ColumnWrite.

Fields

reference: ColumnReference

resolution: ResolutionKind

Trait Implementations

impl Clone for ColumnRead

fn clone(&self) -> ColumnRead

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ColumnRead

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

Formats the value using the given formatter.

impl Eq for ColumnRead

impl Hash for ColumnRead

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 ColumnRead

fn eq(&self, other: &ColumnRead) -> 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 StructuralPartialEq for ColumnRead