I see, that make sense, we are trying to add more context and tutorial samples there:)
Best Regards! --------------------- Luke Han On Wed, Sep 23, 2015 at 3:33 AM, Patrick McAnneny < [email protected]> wrote: > Agreed, but I'm saying more "what kylin does" rather than "what does this > term mean". For example, some trail and error is necessary for figuring out > various UI elements. But I'm sure all of this will improve over time and > the majority of the UI is great. Thanks! > > On Mon, Sep 21, 2015 at 9:17 PM, Luke Han <[email protected]> wrote: > > > As today's DW/BI world, Hierarchy Dimension is still very popular and > > common for BI experts and users, like most of traditional and modern > > products doing. > > I don't think it will confuse users especially when they design cubes. > > > > So keep the same concept is very important for user to adopt new stuff, > > here is Kylin, on new tech stack. > > > > Whatever backend setting will be, the user facing term, concept should > > always keep same with existing one as much as possible:) > > > > For documentation, there's terminology page would like to recommend > > newbie to go through first: > > http://kylin.incubator.apache.org/docs/gettingstarted/terminology.html > > > > There's some enhancement of current UI and tutorial documentation > > will come, but I don't think it make sense for a project to draft all > basic > > and common concept and terms everywhere:-) > > > > Thanks. > > > > > > Best Regards! > > --------------------- > > > > Luke Han > > > > On Tue, Sep 22, 2015 at 4:15 AM, Patrick McAnneny < > > [email protected]> wrote: > > > > > I found it confusing initially until I read about how it is mostly a > > method > > > of optimising the cube (rather than a separate type of dimension that > > would > > > be queried differently). It makes a lot of sense now that I understand, > > but > > > perhaps a little bit more documentation would help others starting out. > > (it > > > is not covered in the cube construction slides) > > > > > > Not a huge deal though > > > > > > On Mon, Sep 21, 2015 at 3:21 PM, Julian Hyde <[email protected]> wrote: > > > > > > > Yes, hierarchies may be a useful organizing concept. I claim that > > > > hierarchies are separate things: (1) navigation paths for a UI, (2) > > > > statistical patterns in data access. Conversations like this one are > > > > evidence that — at least for some people — hierarchies are confusing. > > So, > > > > keep them as a user concept only if they make life simpler for the > > > majority > > > > of users. > > > > > > > > Julian > > > > > > > > > > > > > On Sep 21, 2015, at 2:34 AM, Li Yang <[email protected]> wrote: > > > > > > > > > > @Julian, plan to refactor the underlying aggregation group in Q4. > > Will > > > > drop > > > > > hierarchy concept in the backend, however in the frontend for ease > of > > > > > understanding, may still call it hierarchy. :-) > > > > > > > > > > On Sat, Sep 19, 2015 at 2:40 AM, Patrick McAnneny < > > > > > [email protected]> wrote: > > > > > > > > > >> Great thread and great read. I see now that hierarchies are just a > > way > > > > to > > > > >> specify correlated dimensions for added efficiencies in cube > > > > architecture. > > > > >> I understand now. Thanks a lot! > > > > >> > > > > >> On Fri, Sep 18, 2015 at 1:08 PM, Julian Hyde <[email protected]> > > > wrote: > > > > >> > > > > >>> As I've said before[1] I don't think hierarchies add much to > Kylin. > > > > >>> > > > > >>> Julian > > > > >>> > > > > >>> [1] > > > > >>> > > > > >> > > > > > > > > > > http://mail-archives.apache.org/mod_mbox/kylin-dev/201506.mbox/%[email protected]%3E > > > > >>> > > > > >>> On Fri, Sep 18, 2015 at 9:18 AM, Patrick McAnneny > > > > >>> <[email protected]> wrote: > > > > >>>> So does a regular dimension though right? What's the difference > > > > >> between a > > > > >>>> singular hierarchy dimension and a regular dimension? The end > > > > resulting > > > > >>>> kylin sql would be the same (group by) right? Thanks for helping > > me > > > > >>>> understand! > > > > >>>> > > > > >>>> On Fri, Sep 18, 2015 at 12:01 PM, Sarnath <[email protected]> > > > wrote: > > > > >>>> > > > > >>>>> Hierarchy indicates that drill down is possible. > > > > >>>>> > > > > >>> > > > > >> > > > > > > > > > > > > > >
