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https://issues.apache.org/jira/browse/CARBONDATA-2547?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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wangsen updated CARBONDATA-2547:
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Description:
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!
was:
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：
!testnull.png!
> 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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