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Posted to issues@kylin.apache.org by "hongbin ma (JIRA)" <ji...@apache.org> on 2017/05/12 05:52:04 UTC

[jira] [Resolved] (KYLIN-2597) Deal with trivial expression in filters like x = 1 + 2

     [ https://issues.apache.org/jira/browse/KYLIN-2597?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

hongbin ma resolved KYLIN-2597.
-------------------------------
       Resolution: Fixed
    Fix Version/s: v2.1.0

when translating the filter in Rex to filter in Kylin, a little more work is done to reduce 1+1 to 2

> Deal with trivial expression in filters like x = 1 + 2
> ------------------------------------------------------
>
>                 Key: KYLIN-2597
>                 URL: https://issues.apache.org/jira/browse/KYLIN-2597
>             Project: Kylin
>          Issue Type: Improvement
>            Reporter: hongbin ma
>            Assignee: hongbin ma
>             Fix For: v2.1.0
>
>
> BI tools will generate trivial expression in filters, e.g "x = 1 + 2". Such expressions will cause kylin to conceive it as "non-evaluateble", which in turn blocks other things like limit push down, or having to choose cuboid with more dimensions, etc.



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