"David G. Johnston" <david.g.johnston@gmail.com> writes:
> But feel free to work out a design and add it to the ToDo list for the v4
> protocol. The use case seems reasonable and doable (on the basis of the
> replication protocol works).
No, the replication protocol isn't a precedent. Physical replication
needn't connect to a particular database because it does no catalog
accesses (and hence can't run SQL). All it's able to do is suck out
the WAL stream. Logical replication can do SQL --- but it has to
connect to a specific database.
regards, tom lane
