Hi All, I'm confused by the derived dimension. The following two sentences are the source that I found online to guide me use derived dimension. It's kind of unclear to me.
Dimensions on lookup table that can be derived by PK. -like User ID derives [Name, Age, Gender] from [1] at page 10 Given a value in DimA, the value of DimB is determined, so we say dimB can be derived from DimA. When we build a cube that contains both DimA and DimB, we simple include DimA, and marking DimB as Derived. from [2] Let us use the sample cube "kylin_sales_cube" as the example to discuss it. There are two derived dimensions: CAL_DT and CATEGORY. In CAL_DT, which column derives WEEK_BEG_DT? In CATEGORY, which column derives "USER_DEFINED_FIELD1","USER_DEFINED_FIELD3","UPD_DATE","UPD_USER"? Is derived dimension used only in lookup table? [1] http://www.slideshare.net/YangLi43/design-cube-in-apache-kylin?next_slideshow=5 [2] https://mail-archives.apache.org/mod_mbox/incubator-kylin-dev/201507.mbox/%3c82073af5-ae07-4441-bfdf-e8b9d36ff...@163.com%3E Best regards, Zhong
