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https://issues.apache.org/jira/browse/KYLIN-2212?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15689369#comment-15689369
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zhengdong commented on KYLIN-2212:
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Trying to push the 'not' operator into children filters to help to get correct
range filter. Could you please help to review the patch, liyang?
> '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: v1.5.3, v1.5.4.1
> Reporter: zhengdong
> Assignee: zhengdong
> Attachments:
> 0001-KYLIN-2212-NOT-operator-in-filter-on-derived-column-.patch
>
>
> 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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