Struct WalRecord 

pub struct WalRecord<'a> {
    pub offset: usize,
    pub type_byte: u8,
    pub commit_lsn: Option<u64>,
    pub commit_unix_us: Option<i64>,
    pub prev_lsn: Option<u64>,
    pub sql: &'a [u8],
}

v7.18 PITR — parsed WAL record, surfaced for restore / verify tooling. The replay loop above doesn’t expose LSN/timestamp; spgctl restore --to <timestamp> and spgctl verify need them. Returned offsets are byte-positions inside the WAL buffer.

Fields

offset: usize

Byte offset in the WAL buffer where this record starts.

type_byte: u8

Type byte (0x01 = v3 auto-commit, 0x10 = v4 auto-commit, 0x02 = durability checkpoint marker).

commit_lsn: Option<u64>

Some(lsn) for v4 records, None for v3.

commit_unix_us: Option<i64>

Some(unix_us) for v4 records carrying a clock-set timestamp, None for v3 or for v4 records explicitly written with WAL_V4_NO_CLOCK (sentinel for “no ClockFn at commit time”).

prev_lsn: Option<u64>

v7.37.13 (A1.3) — Some(prev_lsn) for v6 records (xl_prev equivalent — the commit_lsn of the previous v6 record in this chunk). None for v3 / v4 / v5 records, which do not carry a prev-link.

sql: &'a [u8]

SQL payload as borrowed bytes. Empty for durability markers.

Trait Implementations

impl<'a> Clone for WalRecord<'a>

fn clone(&self) -> WalRecord<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for WalRecord<'a>

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

Formats the value using the given formatter.