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From "Dong Chen (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-10031) Modify the using of jobConf variable in ParquetRecordReaderWrapper constructor
Date Mon, 23 Mar 2015 03:19:10 GMT

     [ https://issues.apache.org/jira/browse/HIVE-10031?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Dong Chen updated HIVE-10031:
-----------------------------
    Attachment: HIVE-10031.1-parquet.patch

Thanks for your review! [~Ferd], [~spena]

I update patch v1 to revoke the change in  {{ProjectionPusher.pushProjectionsAndFilters()}}
to keep the logic of conf clone.

> Modify the using of jobConf variable in ParquetRecordReaderWrapper constructor
> ------------------------------------------------------------------------------
>
>                 Key: HIVE-10031
>                 URL: https://issues.apache.org/jira/browse/HIVE-10031
>             Project: Hive
>          Issue Type: Sub-task
>            Reporter: Dong Chen
>            Assignee: Dong Chen
>         Attachments: HIVE-10031-parquet.patch, HIVE-10031.1-parquet.patch
>
>
> In {{ParquetRecordReaderWrapper}} constructor, it create splits, set projections and
filters in conf, create task context, and then create Parquet record reader. In this procedure,
we could improve the logic of conf usage:
> 1. the clone of jobConf is not necessary. This could speed up getRecordReader a little.
> 2. the updated jobConf is not passed to Parquet in one case.



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