Struct LogRecord 

pub struct LogRecord {
    pub buf: Vec<u8>,
    pub op_count: u32,
    pub has_header: bool,
    pub portable_changes: Vec<u8>,
    pub portable_changes_enabled: bool,
    pub portable_changes_required: bool,
    /* private fields */
}

A log record contains all durable effects of a committed transaction, pre-serialized into a frame buffer that the logical-log flush path finalizes (backfills the TX header, appends the CRC trailer, optionally chunk-encrypts the payload) and writes to disk.

Fields

buf: Vec<u8>

Frame buffer that grows in place into the on-disk representation. The first LOG_HDR_SIZE + TX_HEADER_SIZE bytes are pre-reserved (zeros) so that op-entry appends land at the correct on-disk offset; the flush path backfills the framing prefix and appends the trailer.

op_count: u32

Number of op entries appended to buf. Includes any header op.

has_header: bool

True once a DatabaseHeader op has been appended. At most one header op is allowed per transaction.

portable_changes: Vec<u8>

Portable logical-change metadata stored alongside the MVCC recovery log.

Recovery ignores this field. Raw-log consumers use it to resolve the recovery ops’ MVCC table ids and read transaction-level metadata.

portable_changes_enabled: bool

True when the committing connection requested portable logical-change frames, even if this transaction has no client-visible metadata.

portable_changes_required: bool

True when a frame must carry a portable transaction wrapper even if the wrapper metadata itself is empty.

Implementations

impl LogRecord

pub fn is_empty(&self) -> bool

True iff no ops (row versions or header) have been appended.

Trait Implementations

impl Clone for LogRecord

fn clone(&self) -> LogRecord

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LogRecord

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

Formats the value using the given formatter.