in the rare case of reorg, old data can be left behind if it's not overwritten by new data, e.g. if timestamps change and there are missing timestamps in the new computed dataset
however deleting the entire table and then reinserting may be costlier than we want, and may also affect running queries
in the rare case of reorg, old data can be left behind if it's not overwritten by new data, e.g. if timestamps change and there are missing timestamps in the new computed dataset
however deleting the entire table and then reinserting may be costlier than we want, and may also affect running queries