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https://issues.apache.org/jira/browse/KYLIN-5445?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ruixuan Zhang reassigned KYLIN-5445:
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Assignee: Ruixuan Zhang
> Epoch tables of metadata are created without primary key, which results in
> failure of creating table under specific versions of database
> ----------------------------------------------------------------------------------------------------------------------------------------
>
> Key: KYLIN-5445
> URL: https://issues.apache.org/jira/browse/KYLIN-5445
> Project: Kylin
> Issue Type: Bug
> Components: Metadata
> Affects Versions: 5.0-alpha
> Reporter: Ruixuan Zhang
> Assignee: Ruixuan Zhang
> Priority: Major
> Fix For: 5.0-alpha
>
>
> When KYLIN using jdbc to create epoch table, sometimes creating table will
> results in failure under certain versions of database due to that table not
> specifying the primary key.
> Therefore, the field target_epoch can be used as primary key, and its
> previous constraint of being unique can be removed. For the environment that
> the table has already exist, KYLIN will firstly check if the primary key
> exists, if so, then target_epoch will be added as primary key.
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