126.96.36.199.10 OLAP Grouping
Grouping in an OLAP PivotCache (section 188.8.131.52.4) is the associating of multiple OLAP members that belong to the same OLAP level of an OLAP hierarchy and have the same OLAP member parent. When OLAP members in a particular OLAP level are grouped, a parent grouping OLAP level exists. Each group is represented in the parent grouping OLAP level by one parent grouping OLAP member, and one or more child OLAP members in the OLAP level that the grouping is applied to.
A parent grouping OLAP level is specified by the sequence of records that conform to the SXADDLGRPLEVEL rule (section 184.108.40.206.5).
A parent grouping OLAP member is specified by the sequence of records that conform to the SXADDLGROUP rule (section 220.127.116.11.5).