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Posted to issues@kylin.apache.org by "zhengdong (JIRA)" <ji...@apache.org> on 2016/11/18 07:14:58 UTC

[jira] [Created] (KYLIN-2212) 'NOT' operator in filter on derived column may get incorrect result

zhengdong created KYLIN-2212:
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             Summary: 'NOT' operator in filter on derived column may get incorrect result 
                 Key: KYLIN-2212
                 URL: https://issues.apache.org/jira/browse/KYLIN-2212
             Project: Kylin
          Issue Type: Bug
    Affects Versions: v1.5.4.1, v1.5.3
            Reporter: zhengdong
            Assignee: zhengdong


when a compare filter on derived column specified in where clause, it will be translated into a filter on PK, and further converted to a range filter on PK ( GT the min, LT the max) if  the PK values' s size  larger than the threshold. 
However, this loose filter may filter more records out than needed when decorated with 'NOT' operator 



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