Note that by default, all dimensions are enabled for default dimension search. If you use Dgidx --compoundDimSearch flag, all dimensions are enabled for compound dimension search.

If used for default dimension search, specify one or more dimension IDs for the Di parameter. The MDEX Engine returns matches only from the dimensions you specify (as opposed to the default behavior of searching across all dimensions).

If used for the compound dimension search, specify a list of dimension IDs for the Di parameter. This way, you are requiring that every result returned has exactly one value from each dimension ID specified in Di. This restricts your compound dimension search to the intersection of the specified dimensions (as opposed to the compound dimension search across all dimensions).