To use the rapid grouping facility, specify in the SQL optimization options either RAPID_GROUPING or a value to which 1,024 has been added. For details about how to specify the SQL optimization options, see the following locations:

• The pd_optimize_level description in the manual HiRDB Version 8 System Definition
• The SQL optimization options description in the manual HiRDB Version 8 SQL Reference
• The PDSQLOPTLVL description in 6.6.4 Environment definition information