From tfa: > Due to browser sandboxing there is no way to connect directly to the Postgres instance beyond the embedded psql interface that we establish for you

From tfa: > Due to browser sandboxing there is no way to connect directly to the Postgres instance beyond the embedded psql interface that we establish for you. The current configuration allocates 512MB of memory for your Postgres instance, we may make this more configurable in the future. It’s in the browser, hence if you refresh you’re going to get a fresh instance, we haven’t created any persistence layers (yet).