+1 for A As I known, so far ColumnGroup feature can't improve performance very well, it became a useless feature nearly. If necessary, we need redesign this feature to keep code clean and tune it well to improve performance.
----- Best Regards David Cai -- View this message in context: http://apache-carbondata-dev-mailing-list-archive.1130556.n5.nabble.com/About-ColumnGroup-feature-tp14436p14729.html Sent from the Apache CarbonData Dev Mailing List archive mailing list archive at Nabble.com.
