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https://issues.apache.org/jira/browse/KYLIN-5492?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17709177#comment-17709177
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longfeiJiang commented on KYLIN-5492:
-------------------------------------
*Dev Design*
When using jdbc to create an epoch table, use epoch_target as the primary key,
and the previous unique constraint is not needed
For the environment where the table has been built, first determine whether the
primary key exists, if not, add epoch_target as the primary key to maintain
consistency
The upgraded environment, the old unique is not deleted here
> Transformation of dependencies between service modules
> ------------------------------------------------------
>
> Key: KYLIN-5492
> URL: https://issues.apache.org/jira/browse/KYLIN-5492
> Project: Kylin
> Issue Type: Improvement
> Affects Versions: 5.0-alpha
> Reporter: longfeiJiang
> Assignee: longfeiJiang
> Priority: Major
> Fix For: 5.0-alpha
>
>
> Transformation of dependencies:
> # common-service
> # query-service
> # datasource-service
> # dataloading-service
> # job-service
> # modeling-service
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