By default, PgBouncer allows only parameters it can keep track of in startup packets: client_encoding, datestyle, timezone and standard_conforming_strings. All others parameters will raise an error. To allow others parameters, they can be specified here, so that PgBouncer knows that they are handled by the admin and it can ignore them. If you need to specify multiple values, use a comma-separated list. IMPORTANT: When using prometheus-pgbouncer-exporter, you need: extra_float_digits https://github.com/prometheus-community/pgbouncer_exporter#pgbouncer-configuration

null

"extra_float_digits"