Maybe the same as the closed issue https://issues.apache.org/jira/browse/KYLIN-2197
in the image: bottom-left: row-keys, can see all the dimensions. top-left: I have create two agg-group with dimensions as mandatory dimension. bottom-right: the result coboid has only one base cuboid. is it a bug, or i config it in a wrong way? my version is kylin 2.1
