SecondaryDimensionality() returns the number of dimension pivot table rows that have non-aggregation content, that is, do not contain partial sums or collapsed aggregates. This function is the equivalent of the dimensionality() function for horizontal pivot table dimensions.
Return data type: integer
Unless used in pivot tables, the SecondaryDimensionality function always returns 0.
Sorting on y-values in charts or sorting by expression columns in tables is not allowed when this chart function is used in any of the chart's expressions. These sort alternatives are therefore automatically disabled. When you use this chart function in a visualization or table, the sorting of the visualization will revert back to the sorted input to this function.