If the credentials for the key management service change, you must also change the credentials that Fujitsu Enterprise Postgres uses to connect to the key management system.

You can change the credentials used by Fujitsu Enterprise Postgres using the pgx_open_keystore function. The new credentials are used to connect to the new key management system.

If you have a streaming replication configuration, you must change credentials on all replicas.

Refer to "B.2.1 pgx_open_keystore" for information on the pgx_open_keystore function.