Hello! The Calcite tutorial <https://calcite.apache.org/docs/tutorial.html> shows how to use a custom sqlline to connect to the Calcite JDBC driver with a model.json to use a simple adapter that makes a directory of CSV files appear to be a schema containing tables. Later, the tutorial shows what I think is a model.json file for using the JDBC Adapter <https://calcite.apache.org/docs/tutorial.html#jdbc-adapter> but I don't really understand how to use it. Evidently, there's a Calcite JDBC driver that can handle JDBC URLs of the form "jdbc:calcite:model=model.json". Given that, I feel like using the JDBC adapter might be as easy as substituting a suitable model.json file, like the one for MySQL in the tutorial, but that might be overly optimistic. For that really to work, the Calcite JDBC driver would have to be on the classpath as well as the MySQL driver (or PostgreSQL driver, or whatever) and I can't figure out how to arrange that. It's easy enough to put the database drivers into the CLASSPATH environment variable, but where is the Calcite JDBC driver? I tried adding calcite/core/build/libs/calcite-core-1.38.0-SNAPSHOT.jar to CLASSPATH and using the stock (unmodified) sqlline, but it failed to pick up the driver, and now I'm wondering if this is even the right approach. I'm really kinda lost here and any help would be appreciated. Thanks!
Best, David
