[jira] [Created] (KYLIN-3580) CuboidStatsUtil#complementRowCountForMandatoryCuboids uses entrySet to add elements

["Ted Yu (JIRA)" <ji...@apache.org>]

Ted Yu created KYLIN-3580:
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             Summary: CuboidStatsUtil#complementRowCountForMandatoryCuboids uses entrySet to add elements
                 Key: KYLIN-3580
                 URL: https://issues.apache.org/jira/browse/KYLIN-3580
             Project: Kylin
          Issue Type: Bug
            Reporter: Ted Yu


Here is related code:
{code}
        sortedStatsSet.addAll(statistics.entrySet());
{code}
The entrySet() method is allowed to return a view of the underlying Map in which a single Entry object is reused and returned during the iteration.
When iterating through such a Map, the Entry value is only valid until you advance to the next iteration.



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