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Posted to issues@carbondata.apache.org by "Jacky Li (JIRA)" <ji...@apache.org> on 2018/04/13 15:43:00 UTC

[jira] [Resolved] (CARBONDATA-2343) Improper filter resolver cause more filter scan on data that could be skipped

     [ https://issues.apache.org/jira/browse/CARBONDATA-2343?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jacky Li resolved CARBONDATA-2343.
----------------------------------
       Resolution: Fixed
    Fix Version/s: 1.4.0

> Improper filter resolver cause more filter scan on data that could be skipped
> -----------------------------------------------------------------------------
>
>                 Key: CARBONDATA-2343
>                 URL: https://issues.apache.org/jira/browse/CARBONDATA-2343
>             Project: CarbonData
>          Issue Type: Bug
>          Components: data-query
>            Reporter: xuchuanyin
>            Assignee: xuchuanyin
>            Priority: Major
>             Fix For: 1.4.0
>
>          Time Spent: 50m
>  Remaining Estimate: 0h
>
> In DataMapChooser, Carbondata try to choose and combine datamap for expressions. In some scenario, it will generate `TrueConditionalResolverImpl` to wrap the sub-expression, which will cause data scan on the blocklet which can be skipped (For `TrueConditionalResolverImpl`, the  `TrueFilterExecutor` will always cause scanning the data even it simply wraps a range expression).



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