Method increment

src/sql-server-util/src/cdc.rs:558–569

Increment this [`Lsn`]. The returned [`Lsn`] may not exist upstream yet, but it's guaranteed to sort greater than `self`.

(self)

    /// The returned [`Lsn`] may not exist upstream yet, but it's guaranteed to
    /// sort greater than `self`.
    pub fn increment(self) -> Lsn {
        let (record_id, carry) = self.record_id.overflowing_add(1);
        let (block_id, carry) = self.block_id.overflowing_add(carry.into());
        let (vlf_id, overflow) = self.vlf_id.overflowing_add(carry.into());
        assert!(!overflow, "overflowed Lsn, {self:?}");

        Lsn {
            vlf_id,
            block_id,
            record_id,
        }
    }

    /// Drops the `record_id` portion of the [`Lsn`] so we can fit an "abbreviation"
    /// of this [`Lsn`] into a [`u64`], without losing the total order.