Project organization, folders, orgs, and it’s integration with IAM / GSuite.

I haven’t dug in on Cloud SQL in about a year, what I recall:

- no support for logical replication in PG

- there was some VPC funkiness

- fewer number of extensions: ~60 extensions in RDS vs ~45 for CloudSQL

- CSQL Only supports pl/pgsql vs perl, v8, tcl, and pgsql