I forget to include patch in last letter.
Craig Ringer wrote 2017-08-15 05:00:
> That ship sailed a long time ago unfortunately, they're all over
> pg_stat_replication and pg_replication_slots and so on. They're
> already routinely used for monitoring replication lag in bytes,
> waiting for a peer to catch up, etc.
>
> --
>
> Craig Ringer http://www.2ndQuadrant.com/
> PostgreSQL Development, 24x7 Support, Training & Services
Function pg_replication_slots is only master, and waitlsn is async hot
standby replication function. It allows us to wait untill insert made on
master is be replayed on replica.
--
Ivan Kartyshov
Postgres Professional: http://www.postgrespro.com
Russian Postgres Company
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