Rollups collapse a flat dataset into one entry per dimension value (e.g. one row per customer), summing a primary value and any extra metrics you name. This is the aggregation step that feeds the Pareto / quad / quartile engines.
Rollups collapse a flat dataset into one entry per dimension value (e.g. one row per customer), summing a primary value and any extra metrics you name. This is the aggregation step that feeds the Pareto / quad / quartile engines.