Waiting for PostgreSQL 19 – psql: Add %i prompt escape to indicate hot standby status. – select * from depesz;

PostgreSQL 19 introduces a new `%i` prompt escape for psql that displays whether the connected server is a primary or standby (hot standby). When added to PROMPT1 in `.psqlrc`, the prompt shows `[[primary]]` or `[[standby]]` at a glance, making it easier to distinguish server roles in replicated environments without manually calling `pg_is_in_recovery()`.