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https://issues.apache.org/jira/browse/CARBONDATA-2547?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16534373#comment-16534373
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wangsen commented on CARBONDATA-2547:
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the test misoperation，carbondata is same as parquet，so the issue close
> CarbonData loads a null character between the two separators, and the loaded
> result value is '' , actual need null
> ------------------------------------------------------------------------------------------------------------------
>
> Key: CARBONDATA-2547
> URL: https://issues.apache.org/jira/browse/CARBONDATA-2547
> Project: CarbonData
> Issue Type: Bug
> Components: data-load
> Affects Versions: 1.1.0, 1.2.0, 1.3.1
> Reporter: wangsen
> Assignee: wangsen
> Priority: Minor
> Fix For: NONE
>
> Attachments: testnull.png
>
>
> CarbonData loads a null character between the two separators, and the loaded
> result value is '' and cannot be modified by a parameter.but Parquet loads
> null characters between two separators, and the loaded value is NULL.Causes
> CarbonData to not filter query results by is not null condition。
> Detailed test information：
> the table ex_testnull is a external table,the source data is csv,another
> table testnull is Paruet table， testnullCarbon is CarbonData
> tale
> !testnull.png!
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