[KYLIN-1313] Enable deriving dimensions on non PK/FK

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: v1.5.2
• Assignee: Hongbin Ma
• Reporter: Hongbin Ma
• Created: 13/Jan/16 06:20
• Updated: 01/Jul/16 10:55
• Resolved: 21/Apr/16 12:14

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.

Issue Links

• is related to: KYLIN-1611 Toggle to switch between warning/throwing exception when there's different extended column for same host column
• is related to: KYLIN-1786 Frontend work for KYLIN-1313 (extended columns as measure)