Struct RootEntry 

pub struct RootEntry {
    pub root_page: Option<u64>,
    pub begin: u64,
    pub end: u64,
    pub materialized_at: WalPos,
}

Versioned table_id -> root_page binding (begin/end = snapshot lifetime).

Fields

root_page: Option<u64>

begin: u64

end: u64

materialized_at: WalPos

When this binding’s B-tree pages became durable in the WAL (ORIGIN = always in base).

Implementations

impl RootEntry

pub fn live(root_page: Option<u64>) -> Self

A live binding visible to every snapshot (bootstrap/recovery/uncheckpointed-create).

pub fn is_live(&self) -> bool

Still live (not yet dropped).

pub fn covers(&self, ts: u64) -> bool

Whether this binding is logically visible to a transaction at snapshot ts (begin <= ts and, unless live, ts < end). This is base-validity only; for a btree read also require physical reachability via Self::materialized_at.

Trait Implementations

impl Clone for RootEntry

fn clone(&self) -> RootEntry

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for RootEntry

impl Debug for RootEntry

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

Formats the value using the given formatter.

impl Eq for RootEntry

impl PartialEq for RootEntry

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for RootEntry