Struct StagedWriteMark 

pub struct StagedWriteMark {
    pub staging_journal_len: usize,
    pub staging_index_len: usize,
    pub staged_wal_len: usize,
}

Boundary of storage-staged (not yet undo-logged) writes captured at savepoint creation.

Online vertex writes accumulate in a per-transaction staging buffer (plus staged WAL redo) instead of the undo log, so rolling back to a savepoint must rewind this buffer in addition to executing undo logs. None at a savepoint means the target held no staged writes and the rollback skips the rewind.

Fields

staging_journal_len: usize

Staging-buffer journal length at the savepoint.

staging_index_len: usize

Staging-buffer index-operation length at the savepoint.

staged_wal_len: usize

Staged WAL redo length at the savepoint.

Implementations

impl StagedWriteMark

pub fn is_empty(self) -> bool

An all-zero mark rewinds nothing.

Trait Implementations

impl Clone for StagedWriteMark

fn clone(&self) -> StagedWriteMark

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for StagedWriteMark

impl Debug for StagedWriteMark

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

Formats the value using the given formatter.

impl Eq for StagedWriteMark

impl PartialEq for StagedWriteMark

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for StagedWriteMark