[jira] [Commented] (KYLIN-2904) Add compatibility check for model to allow editing model even it's referred by some cubes

["Wang Cheng (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KYLIN-2904?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16180550#comment-16180550 ] 

Wang Cheng commented on KYLIN-2904:
-----------------------------------

There already a similar check in ModelService, i.e, checkIfBreakExistingCubes. It is allowed to add new dims and measures and throws exceptions if deleting dims and measures already used in some cubes.



> Add compatibility check for model to allow editing model even it's referred by some cubes
> -----------------------------------------------------------------------------------------
>
>                 Key: KYLIN-2904
>                 URL: https://issues.apache.org/jira/browse/KYLIN-2904
>             Project: Kylin
>          Issue Type: Improvement
>          Components: Metadata
>    Affects Versions: v2.1.0
>            Reporter: Zhong Yanghong
>            Assignee: Zhong Yanghong
>             Fix For: v2.2.0
>
>
> It's a common requirement that user wants to upgrade an existing cube by adding a column which is not in its referred model. To deal with this requirement, it's better to add model compatibility check to allow compatible model changes.



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