> -----Original Message-----
> From: Tom Lane
>
> In the vacuum tuple-chain moving logic, shouldn't the lines that update
> the new tuple's t_ctid (vacuum.c lines 1882-1891 in current sources)
> be moved up to before the log_heap_move call at line 1866?
>
> It appears to me that as the code stands, log_heap_move will log the new
> tuple containing the wrong t_ctid; therefore, if we crash and have to
> redo the transaction from WAL, the wrong t_ctid will be restored. No?
AFAIR t_ctid isn't logged in WAL.
regards,
Hiroshi Inoue