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Posted to issues@hive.apache.org by "Colin Ma (JIRA)" <ji...@apache.org> on 2017/12/25 03:51:00 UTC

[jira] [Commented] (HIVE-18048) Support Struct type with vectorization for Parquet file

    [ https://issues.apache.org/jira/browse/HIVE-18048?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16303047#comment-16303047 ] 

Colin Ma commented on HIVE-18048:
---------------------------------

[~Ferd], the initial patch is finished, can you help to review, thanks.

> Support Struct type with vectorization for Parquet file
> -------------------------------------------------------
>
>                 Key: HIVE-18048
>                 URL: https://issues.apache.org/jira/browse/HIVE-18048
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Colin Ma
>            Assignee: Colin Ma
>         Attachments: HIVE-18048.001.patch
>
>
> Struct type is not supported in MapWork with vectorization, it should be supported to improve the performance.
> The following improvements will be implemented:
> * Add fields of struct type to VectorizedRowBatchCtx.
> * Improve the VectorizedParquetRecordReader to support the struct type for parquet file.
> Note:
> * Orc file won't be supported.
> * Filter operator won't be supported.



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