Major Description
If user queries a lookup table, Kylin will randomly selects a Cube (which has the snapshot of this lookup table) to answer it. This causes uncertainty when there are multiple cubes (share the same lookup): some cubes are newly built, some not. If Kylin picks an old cube, the query result is old.
To remove this uncertainty, for such queries, either always use latest snapshot, or use earlist snapshot. We believe the "latest" version is better.