49.8. Synchronous Replication Support for Logical Decoding
Logical decoding can be used to build
synchronous
replication
solutions with the same user interface as synchronous
replication for
streaming
replication
. To do this, the streaming replication interface
(see
Section 49.3
) must be used to stream out
data. Clients have to send
Standby status update (F)
(see
Section 53.4
) messages, just like streaming
replication clients do.
Note
A synchronous replica receiving changes via logical decoding will work in
the scope of a single database. Since, in contrast to
that,
synchronous_standby_names
currently is
server wide, this means this technique will not work properly if more
than one database is actively used.