The following documentation comment has been logged on the website:
Page: https://www.postgresql.org/docs/11/static/ddl-partitioning.html
Description:
"If you want to use COPY to insert data, you'll need to copy into the
correct child table rather than directly into the master."
What the reasons
Currently, the documentation explicitly states, that after failover, the
old master must be recreated from scratch, or pg_rewind should be used
(requiring wal_log_hints to be on, which is off by default):
> The former standby is now the primary, but the former primary is down and
might stay down.
