They are working hard to get logical replication in for PG 10 (next major release), but there are still a lot of open items: https://wiki.postgresql.org/wiki/Po

They are working hard to get logical replication in for PG 10 (next major release), but there are still a lot of open items: https://wiki.postgresql.org/wiki/PostgreSQL_10_Open_Items https://wiki.postgresql.org/wiki/PostgreSQL_10_Open_Items I don't know if logical replication = multi-master but I know it is a major piece of the puzzle.