This topic describes the limits of RDS PPAS. To guarantee stability and security, you must understand the limits.
The following table describes the limits of common actions and configurations in RDS PPAS.
|Parameter modification||Currently not supported|
|Database root permission||RDS does not offer the superuser permission to users.|
|Database backup||You can back up data only through pg_dump.|
|Data migration to the cloud||You can only use psql to restore data backed up by pg_dump.|
|Set up database replication||
|Restart an RDS instance||You must restart an instance through the RDS console or APIs.|
|Network settings||If the access mode of the instance is safe connection mode, enabling net.ipv4.tcp_timestamps in SNAT mode is not allowed.|