| For DS applications, query stream execution time is largely irrelevant. It is far more important to understand performance and scalability of elementary SQL operations and of typical queries encountered in customer application. |
| Loading and indexing may take a large portion of the overall time in preparing a large DB. Both parallel loading and indexing become important functionality of a parallel RDBMS. Their performance for large DSS databases should be defined and benchmarked, together with the query benchmarks. Currently none of them is defined or mentioned in the TPC-D specification. |