Struct OrphanProvenanceReport 

pub struct OrphanProvenanceReport {
    pub sources: Vec<OrphanProvenanceSource>,
    pub total_rows: u64,
    pub unerasable_rows: u64,
}

Result of [Engine::orphan_provenance] — the per-source_id census behind fathomdb doctor orphan-provenance (design §4 item 11).

unerasable_rows is the load-bearing field: canonical rows carrying NEITHER a source_id NOR a logical_id. Such a row is reachable by no erasure verb at all — purge keys on logical_id, erase_source keys on source_id — so it can never be deleted on request. Slice 5c made that state unwritable and migration step 21 back-filled the historical cases, so a non-zero count means the invariant has been violated and the verb exits DOCTOR_FOUND_ISSUES.

Fields

sources: Vec<OrphanProvenanceSource>

Per-source_id buckets, ordered by descending rows then source_id so the output is deterministic (a diagnostic that reorders between runs cannot be diffed).

total_rows: u64

Total canonical rows surveyed.

unerasable_rows: u64

Rows with NO source_id AND NO logical_id — un-erasable by any verb.

Trait Implementations

impl Clone for OrphanProvenanceReport

fn clone(&self) -> OrphanProvenanceReport

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for OrphanProvenanceReport

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

Formats the value using the given formatter.

impl Eq for OrphanProvenanceReport

impl PartialEq for OrphanProvenanceReport

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for OrphanProvenanceReport