Nothing in core, but there are products that have good online karma (at least I haven't read horror stories, the lack of which is always good news). See https:/

Nothing in core, but there are products that have good online karma (at least I haven't read horror stories, the lack of which is always good news). See https://en.wikipedia.org/wiki/Multi-master_replication#PostgreSQL https://en.wikipedia.org/wiki/Multi-master_replication#Postg... for some examples.