Konstantin Knizhnik <k.knizh...@postgrespro.ru> writes:

> I think that using restart_lsn instead of confirmed_flush is not right 
> approach.
> If restart_lsn is not available and confirmed_flush is pointing to page
> boundary, then in any case we should somehow handle this case and adjust
> startlsn to point on the valid record position (by jjust adding page header
> size?).

Well, restart_lsn is always available on live slot: it is initially set
in ReplicationSlotReserveWal during slot creation.

Arseny Sher
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company

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