Hi,
Bruce Momjian wrote:
Backends would
update a shared memory variable specifying how far they want the wal
streamer to advance and send a signal to the wal streamer if necessary.
Backends would monitor another shared memory variable that specifies how
far the wal streamer has advanced.
That sounds like WAL needs to be written to disk, before it can be sent
to the standby. Except maybe with some sort of mmap'ing the WAL.
Regards
Markus Wanner
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