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Posted to issues@kylin.apache.org by "qianqiaoneng (JIRA)" <ji...@apache.org> on 2016/06/16 02:50:05 UTC

[jira] [Created] (KYLIN-1790) Metadata Migration Tool didn't handle aggregation group joint rule successfully

qianqiaoneng created KYLIN-1790:
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             Summary: Metadata Migration Tool didn't handle aggregation group joint rule successfully
                 Key: KYLIN-1790
                 URL: https://issues.apache.org/jira/browse/KYLIN-1790
             Project: Kylin
          Issue Type: Bug
            Reporter: qianqiaoneng


If the total dimension is 10, and aggregation group number is 9. after the metadata upgrade, there would be a joint rule with 10-9=1 dimension. But this definition will cause 
java.lang.IllegalStateException: Aggregation group 0 require at least 2 dims in a joint
Should change the upgrade logic not to add joint rule if dimension number is 1.



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