As mentioned by others elsewhere in the thread, Apache Arrow Flight SQL aims to be a standard wire protocol that multiple databases can implement, using a colum

As mentioned by others elsewhere in the thread, Apache Arrow Flight SQL aims to be a standard wire protocol that multiple databases can implement, using a columnar data representation: https://arrow.apache.org/docs/format/FlightSql.html https://arrow.apache.org/docs/format/FlightSql.html However it's early days yet.