 COLLECT STATS ON MBR_DB.MBRTPARTSUBR INDEX(I_CONTRACT,I_PARTICIPANT);
 COLLECT STATS ON MBR_DB.MBRTPARTSUBR COLUMN(I_PARTICIPANT);
 COLLECT STATS ON MBR_DB.MBRTPARTSUBR COLUMN(D_CVRG_PART_EFF);
 COLLECT STATS ON MBR_DB.MBRTPARTSUBR COLUMN(D_PART_STATUS);
