=?UTF-8?Q?Mike_Fr=C3=B6hner?= <mikefroehner@gmx.de> writes:
> But to ensure we understand correctly - I am not talking about pg14 or
> pg15. We have noticed the changed behavior ONLY while using
> postgresql-12 package on Ubuntu 18.04 with libpq5 upgraded from
> 14.5-1.pgdg18.04+1 to 15.0-1.pgdg18.04+1 and postgresql-client-common +
> postgresql-common upgraded from 243.pgdg18.04+1 to 244.pgdg18.04+1.
It's libpq that determines this behavior, not the server, so I find
nothing whatever surprising in your statement.
> For now I am fine with adjusted command in our testing suite. But it is
> still strange the same command works on all versions of Ubuntu LTS but
> not on Ubuntu 18.04.
Probably they've not updated libpq so quickly in the LTS distros.
regards, tom lane
