$ HEROKU_APP=zundan-mastodon heroku pg:info DATABASE
=== DATABASE_URL, PG_HOBBY_BASIC_URL
Plan: Hobby-basic
Status: Available
Connections: 8/20
PG Version: 9.6.1
Created: 2017-04-20 18:31 UTC
Data Size: 66.9 MB
Tables: 29
Rows: 80218/10000000 (In compliance)