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  1. Kylin
  2. KYLIN-1313

Enable deriving dimensions on non PK/FK

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    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: v1.5.2
    • Component/s: None
    • Labels:
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      Description

      currently derived column has to be columns on look table, and the derived host column has to be PK/FK(It's also a problem when the lookup table grows every large). Sometimes columns on the fact exhibit deriving relationship too. Here's an example fact table:

      (dt date, seller_id bigint, seller_name varchar(100) , item_id bigint, item_url varchar(1000), count decimal, price decimal)

      seller_name is uniquely determined by each seller id, and item_url is uniquely determined by each item_id. The users does not expect to do filtering on columns like seller name or item_url, they just want to retrieve it when they do grouping/filtering on other dimensions like selller id, item id or even other dimensions like dt.

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              • Assignee:
                mahongbin Hongbin Ma
                Reporter:
                mahongbin Hongbin Ma
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                • Created:
                  Updated:
                  Resolved: