Hi guys, I am curious if there are any discussions regarding the support of a query rewrite feature in Impala. For example, Apache Dremio provides this cool feature, which arguably can provide tremendous performance gains: http://docs.dremio.com/acceleration/reflections.html
Basically, the idea is to have a few pre-aggregated tables and let Impala pick the most efficient copy of the table during query time. I guess it is a spin on an old "materialized view" idea, but the difference here that users will query a single table without knowing about pre-aggregated versions of that same table.
