I've a partitioned by range (year) tablespace with an index. All partitions, except the last, are loaded with information of past years. After RUNSTATS the tablespace, the last partition have its counters to 0. An explain of a SELECT limited to the year of the last partition give me a tablespace scan, a SELECT limited to other year give me a matching index.
It's possible to 'copy' the statistics from a partition to the last partition to get a matching index in the last partition?