Query a folder of Parquet files directly instead of loading them into a warehouse

You need

A folder of Parquet files that already exists somewhere reachable, on local disk, a mounted network path, or cloud storage, plus a way to run SQL against files directly instead of loading them into a database first.

Not covered

Setting up a scheduled load into a warehouse table for repeat, high-frequency access to this same data, which is a separate, later job from answering today's one question.