Re: Make query cancellation keys longer

On Thu, Aug 15, 2024 at 1:13 PM Heikki Linnakangas <hlinnaka@iki.fi> wrote:
> Added a "protocol_version" libpq option for that. It defaults to "auto",
> but you can set it to "3.1" or "3.0" to force the version. It makes it
> easier to test that the backwards-compatibility works, too.

Over on the "Add new protocol message to change GUCs for usage with
future protocol-only GUCs" there is a lot of relevant discussion about
how bumping the protocol version should work. This thread shouldn't
ignore all that discussion. Just to take one example, Jelte wants to
bump the protocol version to 3.2, not 3.1, for some reasons that are
in the commit message for the relevant patch over there.

--
Robert Haas
EDB: http://www.enterprisedb.com