| 220.127.116.11 Dynamic prefetch (PREFETCH=D)
| Dynamic prefetch can reduce paging and improve performance over sequential
| prefetch for some data access that involves data that is not on
| consecutive pages. When DB2 expects that dynamic prefetch will be used,
| DB2 sets PREFETCH=D. At runtime, dynamic prefetch might or might not
| actually be used. However, DB2 expects dynamic prefetch and optimizes for
| that behavior.
| When dynamic prefetch is used: Dynamic prefetch is used in prefetch
| situations when the pages that DB2 will access are distributed in a
| nonconsecutive manner. If the pages are distributed in a sufficiently
| consecutive manner, sequential prefetch is used instead.