SQL4024 - Parallel index preload access method used

SQL4024
Message Text: Parallel index preload access method used
Cause Text: The query optimizer chose to use a parallel index preload access method to reduce the processing time required for this query. This means that the indexes used by this query will be loaded into active memory when the query is opened.
Recovery Text: Parallel index preload can improve the performance of queries. Even though the access plan was created to use parallel preload, the system will actually use parallel preload only if the following are true:
  • The query attribute degree was specified with an option of *IO or *ANY for the application process.
  • There is enough main storage to load all of the index objects used by this query into active memory. Normally, a minimum of 5 megabytes would be a minimum. Increasing the size of the shared pool may improve performance.
For more information about parallel index preload, refer to the Data access on DB2 UDB for iSeries: data access paths and methods.