Обсуждение: [GENERAL] Writing on replicas?
Hello,
I have a possibly unusual case, I've asked about it before on this list.
There is a bunch of reporting being done regularly on some large databases, which interfere with daily operations performance-wise. So one option is to have hot async replication in place to a secondary server where the reports could be run and not impact the main server.
The reporting code is *almost* read-only, with the major exception being that it creates temp tables for intermediate results. The main tables are not written to, just the temp tables.
Some time ago when I've asked what to do in this situation, the answer was that maybe a future version could allow this setup to work. So, I'm asking again: was something changed in 10.0 which would allow it?
Ivan Voras wrote: > The reporting code is *almost* read-only, with the major exception being > that it creates temp tables for intermediate results. The main tables are > not written to, just the temp tables. > > Some time ago when I've asked what to do in this situation, the answer was > that maybe a future version could allow this setup to work. So, I'm asking > again: was something changed in 10.0 which would allow it? No, but you could use logical replication (with either pglogical or pg10's more limited native features). -- Álvaro Herrera https://www.2ndQuadrant.com/ PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services -- Sent via pgsql-general mailing list (pgsql-general@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general