Struct ProjectionManifest 

pub struct ProjectionManifest { /* private fields */ }

The projection’s operational manifest: the ordered set of derived segment entries plus the materialization watermark (the last LSN a segment covers).

Implementations

impl ProjectionManifest

pub fn last_materialized_lsn(&self) -> u64

The materialization watermark: columnar segments cover every LSN up to and including this value; everything past it is the un-materialized tail served by the row path.

pub fn segments(&self) -> &[ProjectionSegmentEntry]

pub fn all_derived(&self) -> bool

Every projection entry is derived — this is an invariant, asserted so a future edit that forgets to mark an entry derived fails a test.

pub fn durable_entries(&self) -> impl Iterator<Item = &ProjectionSegmentEntry>

What backup/restore must persist: nothing. Projection segments are rebuildable, so a backup that skips them loses no truth (ADR 0069 §1).

Trait Implementations

impl Clone for ProjectionManifest

fn clone(&self) -> ProjectionManifest

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ProjectionManifest

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

Formats the value using the given formatter.

impl Default for ProjectionManifest

fn default() -> ProjectionManifest

Returns the “default value” for a type.

impl Eq for ProjectionManifest

impl PartialEq for ProjectionManifest

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ProjectionManifest