Hi team, regarding the merge rollup task can I 1) specify multiple aggregationTypes on the same metric column, for example, I want sum & min & max (percentile too) for the latency column after rollup. 2) ignore some dimensional columns during and after the rollup/aggregation. We need to ignore some dimensional columns because before rollup the table stores raw signals which all have a uuid column. Retaining the uuid column, there will be no actual rollup.