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 each retain a segment of every table. Transporting all the rows to one AMP for sorting would result in a non-scalable and bottlenecked process. …