On 2018-Nov-27, Sergei Kornilov wrote:
> > No, this appears to be a forward-compatibility problem not a
> > backward-compatibility one.
>
> Exactly. Using v10 server with v11 client works as expected. We have
> such error when using client v10 with server v11 - with correct
> warning at psql startup.
Doh. Well, we don't promise forward-compatibility, so the only bug is
that Vaishakh ignored the warning at the start of the session indicating
that some psql commands may not work ... (only now I read Sergei's
message correctly)
--
Álvaro Herrera https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services