To the best of my knowledge, Meta has significantly reduced its investment in the Velox project. Apart from Meta, I'm not aware of any other major company that really uses Velox in a production environment. Frankly speaking, Velox may have already missed the window of opportunity for rapid development. If you're looking for a vectorized execution engine, you could consider ClickHouse (www.clickhouse.com) or StarRocks (www.starrocks.io). If your data analysis scenarios require more multi-table join operations, StarRocks is clearly a better choice.