On Tue, Oct 3, 2017 at 9:46 PM, Tom Lane <t...@sss.pgh.pa.us> wrote:
> Badrul Chowdhury <bac...@microsoft.com> writes:
>> 1. Pgwire protocol v3.0 with negotiation is called v3.1.
>> 2. There are 2 patches for the change: a BE-specific patch that will be 
>> backported and a FE-specific patch that is only for pg10 and above.
> TBH, anything that presupposes a backported change in the backend is
> broken by definition.  We expect libpq to be able to connect to older
> servers, and that has to include servers that didn't get this memo.
> It would be all right for libpq to make a second connection attempt
> if its first one fails, as we did in the 2.0 -> 3.0 change.

Hmm, that's another approach, but I prefer the one advocated by Tom Lane.


Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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