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Posted to issues@drill.apache.org by "Julien Le Dem (JIRA)" <ji...@apache.org> on 2015/10/23 20:47:27 UTC

[jira] [Commented] (DRILL-3972) Vectorize Parquet Writer

    [ https://issues.apache.org/jira/browse/DRILL-3972?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14971595#comment-14971595 ] 

Julien Le Dem commented on DRILL-3972:
--------------------------------------

I'm not working on this right now but I'm happy to mentor someone if they want to pick it up.

> Vectorize Parquet Writer
> ------------------------
>
>                 Key: DRILL-3972
>                 URL: https://issues.apache.org/jira/browse/DRILL-3972
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Storage - Parquet
>            Reporter: Julien Le Dem
>              Labels: pick-me-up
>
> Currently the [ParquetRecordWriter|https://github.com/apache/drill/blob/a98da39dd5a8fa368afd8765f4e981826bbfcc0f/exec/java-exec/src/main/java/org/apache/drill/exec/store/parquet/ParquetRecordWriter.java] receives one record at a time and then turns that into columns.
> Which means we convert from Drill columns to rows and then to Parquet columns.
> Instead we could directly convert the Drill columns into Parquet columns in a vectorized manner.



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