Interesting, why it would take so long ? I'm genuinely curious so that we can make it better (Disclaimer:I work at ClickHouse)

Here's a example of a query against a Parquet file you can run on your laptop: ``` ./clickhouse local -q "SELECT town, avg(price) AS avg_price FROM s3('https://datasets-documentation.s3.eu-west-3.amazonaws.com/ho...') GROUP BY town ORDER BY avg_price DESC LIMIT 10" ``` From: https://clickhouse.com/docs/knowledgebase/parquet-to-csv-jso...