To make dimension values available for the compound dimension search, run the indexing using the--compoundDimSearch flag for Dgidx. Otherwise, compound dimension search will not be used by the MDEX Engine.

Although all dimension values are enabled for the compound dimension search if the--compoundDimSearch flag is used for Dgidx, you can limit the compound dimension search to a list of dimensions, by using the Di parameter and specifying a list of dimension value IDs for it.