Re: display hot standby state in psql prompt

On Wed, Jul 23, 2025 at 5:04 PM Jim Jones <jim.jones@uni-muenster.de> wrote:
> v3 attached.

+ const char *hs = PQparameterStatus(pset.db, "in_hot_standby");
+ const char *ro = PQparameterStatus(pset.db, "default_transaction_read_only");

When either hs or ro is NULL, the displayed status can be incorrect.
For example, connecting to a standby server running PostgreSQL 10
incorrectly shows "read/write". In such cases, wouldn't it be clearer
to display something like "unknown", similar to how the "Hot Standby"
column in \conninfo reports "unknown"?

Regards,

--
Fujii Masao