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Posted to issues@drill.apache.org by "Nate Putnam (JIRA)" <ji...@apache.org> on 2017/02/23 18:02:44 UTC

[jira] [Updated] (DRILL-5292) Better Parquet handling of sparse columns

     [ https://issues.apache.org/jira/browse/DRILL-5292?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Nate Putnam updated DRILL-5292:
-------------------------------
    Affects Version/s: 1.10.0

> Better Parquet handling of sparse columns
> -----------------------------------------
>
>                 Key: DRILL-5292
>                 URL: https://issues.apache.org/jira/browse/DRILL-5292
>             Project: Apache Drill
>          Issue Type: Improvement
>          Components: Storage - Parquet
>    Affects Versions: 1.10.0
>            Reporter: Nate Putnam
>
> It appears the current implantation of ParquetRecordReader will fill in missing columns between files as a NullableIntVector. It would be better if the code could determine if that column was defined in a different file (and didn't conflict) and use the defined data type. 
>  



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