Re: Logical Replication WIP

On 13 September 2016 at 06:03, Petr Jelinek <petr@2ndquadrant.com> wrote:

> Oh sure, I don't see that as big problem, the TupleData already contains
> type of the data it sends (to distinguish between nulls and text data) so
> that's mostly about adding some different type there and we'll also need
> type info in the column part of the Relation message but that should be easy
> to fence with one if for different protocol version.

The missing piece seems to be negotiation.

If a binary-aware client connects to a non-binary aware server, the
non-binary-aware server needs a way to say "you requested this option
I don't understand, go away" or "you asked for binary but I don't
support that".

-- Craig Ringer                   http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training & Services