I have always wanted to have some fun with a public database.
Now is the time!
I used local cloud provider and created a tiny virtual machine, installed postgresql-15, installed h3-pg extension and created a demo database that anyone can connect to. Yes, you heard that right!
Use the connection parameters from the attached picture to connect.
There are few sample H3 queries. I haven't learned much H3 yet. You can share your creations there.
Anyone can mess around in the guest schema. You can create tables in that schema. Don't worry if you get 'out of memory' error or similar. This is a sandbox on a tiny machine. Mistakes are allowed.
[For the first 24h, my pg instance ran on the default port 5432. Today I reviewed the logs and for sure there were bad guys trying to establish connections with common usernames like 'admin', 'db', 'myuser', 'pgsql', etc. Apparently they were unsuccessful. That's one reason I shared the secrets as an image.]