On Sat, Mar 18, 2017 at 2:56 AM, Elvis Pranskevichus <elprans@gmail.com> wrote:
> Currently, clients wishing to know when the server exits hot standby
> have to resort to polling, which is often suboptimal.
>
> This adds the new "in_hot_standby" GUC variable that is reported via a
> ParameterStatus message. This allows the clients to:
>
> (a) know right away that they are connected to a server in hot
> standby; and
>
> (b) know immediately when a server exits hot standby.
>
> This change will be most beneficial to various connection pooling
> systems (pgpool etc.)
Why adding a good chunk of code instead of using pg_is_in_recovery(),
which switches to false once a server exits recovery?
--
Michael
