Optimizing Performance with Teradata ORDER BY: How Sorting is Done in Parallel Without Bottlenecks
Teradata ORDER BY and Performance To employ a basic sorting algorithm, all rows must be present in one location for sorting. However, this is not feasible in Teradata, where numerous AMPs retain a segment of each table. Transporting all the rows to one AMP for sorting purposes would result in a non-scalable and bottlenecked process. …