[jira] [Commented] (KYLIN-5748) Skip build flat table for index build job if all new created indexes can be built from existed parent index

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KYLIN-5748?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17878562#comment-17878562 ] 

ASF GitHub Bot commented on KYLIN-5748:
---------------------------------------

pfzhan commented on PR #2162:
URL: https://github.com/apache/kylin/pull/2162#issuecomment-2324449892

   @zznlime Does this pr need to be merged into the kylin code? If necessary, please send pr to @liyang-kylin . I will resolve this issue.




> Skip build flat table for index build job if all new created indexes can be built from existed parent index
> -----------------------------------------------------------------------------------------------------------
>
>                 Key: KYLIN-5748
>                 URL: https://issues.apache.org/jira/browse/KYLIN-5748
>             Project: Kylin
>          Issue Type: Improvement
>    Affects Versions: 5.0-beta
>            Reporter: Zhenning Zhang
>            Assignee: Zhenning Zhang
>            Priority: Major
>
> For an index build job, if all the new added indexes can be built from their existed parent index. No index was built from new created flat table.
> For this case, there won't be any data inconsistency across indexes. And there is no need to build a new flat table to serve the stage of index build by layer.
> So I think we can skip stage BUILD DICT and stage GENERATE FLAT TABLE for an index build job in condition that all new added indexes can be built from their existed parent index



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