The recent release of Percona Monitoring and Management 2.25.0 (PMM) includes a fix for bug PMM-6937: before that, PMM expected all monitoring connections to PostgreSQL servers to be made using the default postgres database. This worked well for most deployments, however, some DBaaS providers like Heroku and DigitalOcean do not provide direct access to the [&]

https://www.percona.com/blog/pmm-now-supports-monitoring-of-postgresql-instances-connecting-with-any-database-name/