Specify the Partition Size for Simplified Statistical Functions
SET PARTITION_ON = {FIRST|PENULTIMATE|TABLE}
where:
FIRST
Uses the first (also called the major) sort field in the request to partition the values.
PENULTIMATE
Uses the next to last sort field where the COMPUTE is evaluated to partition the values. This is the default value.
TABLE
Uses the entire internal matrix to calculate the statistical function.