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https://issues.apache.org/jira/browse/KYLIN-2997?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16287292#comment-16287292
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liyang commented on KYLIN-2997:
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Will this cause upgrade problem? E.g. after upgrade, the signature check will
fail and block cube build?
> Allow change engineType even if there are segments in cube
> ----------------------------------------------------------
>
> Key: KYLIN-2997
> URL: https://issues.apache.org/jira/browse/KYLIN-2997
> Project: Kylin
> Issue Type: Bug
> Components: Metadata, Web
> Affects Versions: v2.1.0
> Reporter: kangkaisen
> Assignee: kangkaisen
> Attachments: KYLIN-2997.patch
>
>
> Currently, the cube signature contains engineType, if user want to switch
> engine, they must purge the cube firstly. I think which is unreasonable
> because the engine doesn't effect query and existing segments.
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