LsnPosition

class

class LsnPosition(lsn: int)

Categories: source

CDC start position: a WAL Log Sequence Number.

A start_from value; resuming from a persisted offset uses this shape too (the runner persists {"lsn": int} on the trx state).

Parameters

parameter

lsnint

64-bit integer LSN -- the value pg_current_wal_lsn() - '0/0'::pg_lsn returns. Use 0 to replay from the oldest WAL the slot retains.