Struct PersistentCacheIdentity 

pub struct PersistentCacheIdentity {
    pub table_id: u64,
    pub schema_id: u64,
    pub logical_generation: u64,
}

Stable identity bound to a persisted cache frame (REM-002 §18.1). The loader compares the on-disk frame header against this identity and rejects the entry on any mismatch. The logical_generation is the durable table epoch (Table::current_epoch().0) — never a process-local counter — so a valid frame from an older logical state cannot be served after a commit has advanced the epoch. Persistent cache frames are valid only for the exact logical table generation: a frame from a future generation (backup/PITR restore, manual _rcache copy, partial filesystem rollback) can contain rows that do not exist in the restored table and is rejected with the same GenerationMismatch as an older frame.

Fields

table_id: u64

schema_id: u64

logical_generation: u64

Trait Implementations

impl Clone for PersistentCacheIdentity

fn clone(&self) -> PersistentCacheIdentity

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for PersistentCacheIdentity

impl Debug for PersistentCacheIdentity

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

Formats the value using the given formatter.

impl Eq for PersistentCacheIdentity

impl PartialEq for PersistentCacheIdentity

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for PersistentCacheIdentity