Tom Lane wrote: > Heikki Linnakangas <heikki.linnakan...@enterprisedb.com> writes: >> Simon Riggs wrote: >>> Do we need a new record type for that, is there a handy record type to >>> bounce from? > >> After starting streaming, slices of WAL are sent as CopyData messages. >> The CopyData payload begins with an XLogRecPtr, followed by the WAL >> data. That payload format needs to be extended with a 'message type' >> field and a new message type for the timestamps need to be added. > > Whether or not anyone bothers with the timestamp message, I think adding > a message type header is a Must Fix item. A protocol with no provision > for extension is certainly going to bite us in the rear before long.
Agreed a message type header is a good idea, although we don't expect streaming replication and the protocol to work across different major versions anyway. -- Heikki Linnakangas EnterpriseDB http://www.enterprisedb.com -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
