Dremio also appears to take a similar approach, but with more advanced caching features / query pushdown. Plus it has Apache Arrow at its heart. I think that would be my choice of solution in this space
@legg0myegg0 thanks for bringing up Dremio. Can Dremio connect with different databases RDBMS, Kafka, DataLake PRC file formats? Is the use case limited to certain data stores? Is the use-case primarily a united query engine (so that the code remains consistent across DB engines) or is the use case query acceleration?