MySQL for RDS and DBaaS, in general, are very controlled environments by the vendors, meaning that there are missing things like a SUPER grant for the root user (and any user in general). This has some implications on operations, one of them being the impossibility of running pt-table-checksum to verify data consistency between a primary [&]

https://www.percona.com/blog/2020/09/08/data-consistency-for-rds-for-mysql-pt-table-checksum-pt-query-digest/