How to handle table names in queries?

`psycopg` has a [documentation section](https://www.psycopg.org/docs/sql.html#module-psycopg2.sql) explaining why you cannot use `%s` for table names (quoting will cause syntax errors).

In aiopg examples, there is nothing that shows how this could be done.

I was able to run it by doing something like this:

```
from psycopg2 import sql
query = sql.SQL("select * from {}").format(sql.Identifier(table_name))
query = query.as_string(conn._connection._conn) # Use the wrapped psycopg connection
```

This works, but is there a less `hacky` way to achieve this? I could not find it in the documentation.